TWI699034B - Bipolar battery plate assembly and related mechanical coupling technique - Google Patents

Bipolar battery plate assembly and related mechanical coupling technique Download PDF

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TWI699034B
TWI699034B TW108108251A TW108108251A TWI699034B TW I699034 B TWI699034 B TW I699034B TW 108108251 A TW108108251 A TW 108108251A TW 108108251 A TW108108251 A TW 108108251A TW I699034 B TWI699034 B TW I699034B
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feature
housing section
bipolar plate
battery assembly
active material
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TW108108251A
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TW202034567A (en
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丹尼爾 傑森 牧莫
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美商古登修能源公司
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

A battery assembly, such as a bipolar battery assembly, generally includes a first casing segment comprising an optically-absorbing region defining a first feature, and a second casing segment comprising an optically-transmissive region, the second casing segment defining a second feature, the second feature sized and shaped to mate with the first feature. The first and second features form a hermetic seal comprising a welded joint. Fabrication of such an assembly can include physically mating the first casing with the second casing segment, and irradiating, such as using a laser, the optically-absorbing region defining the first feature through the optically-transmissive region to form the welded joint. The first or second casing segments can support a biplate, such as comprising a conductive substrate. A gasket or seal can be used such as to provide a further seal at or near a perimeter of the conductive substrate.

Description

雙極性電池極板組件及相關機械耦合技術Bipolar battery plate assembly and related mechanical coupling technology

本文件大體上(但非藉由限制)係關於電池組件，諸如鉛酸電池組件，且更特定言之係關於可用於雙極性電池組件之組裝技術及殼體組態。This document generally (but not by limitation) is about battery components, such as lead-acid battery components, and more specifically about assembly techniques and housing configurations that can be used for bipolar battery components.

雙極性電池通常包含以一串聯組態電連接的電池單元。更明確言之，各單元通常包含兩個電極、一正極活性質量、一負極活性質量、一電解質儲存槽、及一殼體或「封裝」。術語雙極性可指代定位於電池內，使得正極活性材料定位於一導電基板之一個表面上，且一負極活性材料定位於一相對表面上之一電極組態或「雙極」的使用。通常，電流從一個活性材料均勻地流動穿過雙極之一橫截面至另一活性材料。接著，電流移動穿過一電解質儲存槽且進入另一雙極活性材料組件中。雙極之一數目或「計數」可確定電池之總電壓。無關於單元計數，雙極性電池組件之端部可包含各端部處之一單極結構，諸如組件之一第一端部處之一正極性單極極板，及組件之一相對端部處之一負極性單極極板。此等單極之相對(例如，面向外)表面可充當各自電連接以為電池端子提供一位置或節點。歸因於電流通常連續流動穿過各雙極性集電器組件之主體(bulk)，雙極板之間之電解質區域通常彼此氣密密封。Bipolar batteries usually include battery cells electrically connected in a series configuration. More specifically, each unit usually includes two electrodes, a positive active mass, a negative active mass, an electrolyte storage tank, and a casing or "package." The term bipolar may refer to the use of an electrode configuration or "bipolar" positioned within the battery so that the positive active material is positioned on one surface of a conductive substrate and a negative active material is positioned on an opposite surface. Generally, current flows uniformly from one active material through one of the cross-sections of the bipolar to the other active material. Then, the current moves through an electrolyte storage tank and into another bipolar active material assembly. The number or "count" of one of the two poles can determine the total voltage of the battery. Regardless of cell count, the end of a bipolar battery assembly may include a unipolar structure at each end, such as a positive unipolar plate at the first end of one of the assemblies, and a unipolar plate at the opposite end of the assembly. A negative unipolar plate. The opposed (e.g., outwardly facing) surfaces of these monopoles can serve as respective electrical connections to provide a location or node for the battery terminals. Since current usually flows continuously through the bulk of each bipolar current collector assembly, the electrolyte regions between the bipolar plates are usually hermetically sealed to each other.

用於一雙極性電池之一殼體或「封裝」可在電解質區域之間提供氣密性。舉例而言，雙極性極板組件或「雙極」可配置於耦合在一起且密封之個別框架中。一模組組態允許調整一總電池電壓且框架組件可在框架之相對側上(例如，在各殼體段之相對側上)提供並隔離密封件以確保一個密封件之失效不會導致另一密封件之失效。若一框架間密封件曝露為一電池外殼之外部之一部分，則一缺口可能導致酸性電解質被允許進入周圍環境中。A case or "encapsulation" used in a bipolar battery can provide air tightness between the electrolyte areas. For example, bipolar plate assemblies or "bipolar" can be arranged in individual frames that are coupled together and sealed. A module configuration allows adjustment of a total battery voltage and frame components can provide and isolate seals on opposite sides of the frame (for example, on opposite sides of each housing section) to ensure that the failure of one seal does not cause another Failure of a seal. If an inter-frame seal is exposed as part of the exterior of a battery case, a gap may cause acid electrolyte to be allowed into the surrounding environment.

殼體段材料可包含聚合物材料。舉例而言，可使用一熱塑性材料，諸如丙烯睛-丁二烯-苯乙烯(ABS)、聚丙烯、聚碳酸酯或一或多個其他材料。上文提及之聚合物之熔化溫度可能限制用於此等材料系統之密封技術。在一個方法中，一密封件可包含一墊圈。墊圈材料可與其他工業應用中來源相同且此等墊圈可由諸如橡膠或聚四氟乙烯(PTFE)之耐腐蝕材料製成。通常加載或壓縮密封件以提供氣密性。然而，可能存在挑戰，此係因為此壓縮可能損壞雙極組件之其他部分，諸如導致某些雙極材料破裂或以其他方式使一製造或組裝程序複雜化。壓縮亦可能難以在一電池之一預期壽命內維持。待密封表面之表面製備可幫助抑制缺陷。舉例而言，微孔可在雙極與一墊圈之間形成，從而允許單元之間之離子導電性。The housing section material may comprise a polymer material. For example, a thermoplastic material may be used, such as acrylonitrile-butadiene-styrene (ABS), polypropylene, polycarbonate, or one or more other materials. The melting temperature of the polymers mentioned above may limit the sealing technology used in these material systems. In one approach, a seal may include a gasket. The gasket material can be from the same source as in other industrial applications and these gaskets can be made of corrosion-resistant materials such as rubber or polytetrafluoroethylene (PTFE). The seal is usually loaded or compressed to provide air tightness. However, there may be challenges because this compression may damage other parts of the bipolar component, such as causing certain bipolar materials to crack or otherwise complicating a manufacturing or assembly process. Compression may also be difficult to maintain during the expected life of a battery. The surface preparation of the surface to be sealed can help suppress defects. For example, micro-holes can be formed between the bipolar and a gasket to allow ionic conductivity between the units.

各種密封方法可能涉及除墊圈以外之其他技術。舉例而言，黏著劑(諸如環氧樹脂)可用於接合殼體或框架段且可提供一密封件。黏著劑最初可提供一液體形式，從而允許黏著劑填充一雙極或封裝框架中(例如，殼體段之間)之空隙，幫助減少或抑制一離子洩漏之機會。作為闡釋性實例，黏著劑施配設備可用於使黏著劑之施用容易自動化，諸如可用於改良密封品質或製造一致性。一些黏著劑趨向於昂貴且可能僅提供一短工作壽命。此一短工作壽命可能使框架段堆疊之組裝有問題，諸如對於包含數個堆疊單元之較高電壓雙極性電池組件而言。一些黏著劑容易被酸性溶液侵蝕且可能在長時間曝露下逐漸降解。此產生歸因於電池老化之密封失效之可能性。由於以液體形式施用某些黏著劑，故此等黏著劑可流動。更明確言之，黏著劑可在壓縮期間從一接頭本身移出且進入周圍環境中。此可能導致視覺上無吸引力的密封件，其對於一商業產品而言可能無法接受。Various sealing methods may involve technologies other than gaskets. For example, an adhesive (such as epoxy) can be used to join the shell or frame segments and can provide a seal. The adhesive can initially be provided in a liquid form, allowing the adhesive to fill the voids in a bipolar or encapsulation frame (for example, between housing segments), helping to reduce or inhibit the chance of an ion leakage. As an illustrative example, the adhesive dispensing equipment can be used to make the application of the adhesive easy to automate, such as to improve sealing quality or manufacturing consistency. Some adhesives tend to be expensive and may only provide a short working life. This short working life may cause problems in the assembly of the stack of frame segments, such as for higher voltage bipolar battery assemblies containing several stacked units. Some adhesives are easily attacked by acidic solutions and may gradually degrade under prolonged exposure. This is due to the possibility of sealing failure due to battery aging. Because certain adhesives are applied in liquid form, these adhesives are flowable. More specifically, the adhesive can move out of a joint itself and into the surrounding environment during compression. This may result in a visually unattractive seal, which may be unacceptable for a commercial product.

在又另一方法中，可使用一感應焊接技術。舉例而言，金屬線可定位於一雙極性組件中之封裝框架之間且亦定位於雙極與框架之間。接著，組件可被壓縮且放置於一感應室或線圈內。藉由透過線圈運行一電壓，產生一磁場，該磁場在放置於組件內之金屬線內產生熱量。此熱量導致周圍框架材料熔化且產生一氣密密封。已證明感應焊接產生非常可靠的密封。感應焊接亦可呈現挑戰。舉例而言，用於執行焊接之專用設備可係昂貴的且可能限制導電線之組成以提供與電池化學物之相容性且防止污染。再者，一感應焊接程序通常涉及使用包括具有與一支撐框架之熔點類似的一熔點之一材料之一雙極，或可能未達成密封。In yet another method, an induction welding technique can be used. For example, the metal wire can be positioned between the package frame in a bipolar device and also between the bipolar device and the frame. Then, the component can be compressed and placed in an induction chamber or coil. By running a voltage through the coil, a magnetic field is generated, which generates heat in the metal wire placed in the component. This heat causes the surrounding frame material to melt and create an airtight seal. It has been proven that induction welding produces a very reliable seal. Induction welding can also present challenges. For example, special equipment used to perform soldering can be expensive and may limit the composition of the conductive wires to provide compatibility with battery chemistry and prevent contamination. Furthermore, an induction welding procedure usually involves the use of a bipolar comprising a material having a melting point similar to that of a support frame, or the seal may not be achieved.

本發明者尤其已認識到，可使用一雷射焊接來製造一密封電池單元。舉例而言，可藉由將作為活性材料之一外殼之一陶瓷框架及該陶瓷框架之任一側上之兩個導電片組合而組裝一固體電解質電池。導電片可用作端子且可使用雷射焊接接合至陶瓷。在另一方法中，雷射焊接可用於一雙極性極板組件或一「雙極板」組件之製造中。在此一方法之一個實例中，可建構一雙極板組件，其包含雷射焊接在一起以產生一氣密密封結構的一鉛箔及塑膠框架。In particular, the inventor has realized that a laser welding can be used to manufacture a sealed battery cell. For example, a solid electrolyte battery can be assembled by combining a ceramic frame as an outer shell of the active material and two conductive sheets on either side of the ceramic frame. The conductive sheet can be used as a terminal and can be joined to the ceramic using laser welding. In another method, laser welding can be used in the manufacture of a bipolar plate assembly or a "bipolar plate" assembly. In one example of this method, a bipolar plate assembly can be constructed that includes a lead foil and plastic frame that are laser welded together to create an airtight seal structure.

本發明者尤其已認識到，上文提及之各技術可呈現挑戰，特別在單獨使用時。雙極性電池組件之一市場持續增長，從而為其他待使用組裝及密封技術提供機會。通常，在本文中描述之實例中，一電池殼體之部分(例如，殼體段)可由藉由穿過一第二殼體段之一光學透射部分傳輸光能來照射一第一殼體段之一光學吸收部分而焊接在一起。此照射可包含使用一雷射來在第一殼體段與第二殼體段之間提供一焊接接頭。第一或第二殼體段之一或多個外部特徵部可促成一雷射之一輸出端之對準或支撐之一或多者。可包含一密封件或墊圈以提供冗餘或進一步保護一雙極性極板基板使其免受衝擊或損壞。In particular, the inventors have realized that the various technologies mentioned above can present challenges, especially when used alone. One of the bipolar battery modules market continues to grow, thereby providing opportunities for other assembly and sealing technologies to be used. Generally, in the examples described herein, a portion of a battery casing (eg, a casing section) can illuminate a first casing section by transmitting light energy through an optically transmissive portion of a second casing section One of the optically absorbing parts is welded together. This irradiation may include using a laser to provide a welded joint between the first housing section and the second housing section. One or more external features of the first or second housing section can facilitate one or more of the alignment or support of an output end of a laser. A seal or gasket may be included to provide redundancy or further protect a bipolar plate substrate from impact or damage.

一電池組件，諸如一雙極性電池組件通常包含：一第一殼體段，其包括界定一第一特徵部之一光學吸收區域；及一第二殼體段，其包括一光學透射區域，該第二殼體段界定一第二特徵部，該第二特徵部經定大小且塑形以與該第一特徵部配接。第一特徵部及第二特徵部形成包括一焊接接頭之一氣密密封件。製造此一組件可包含實體上將第一殼體與第二殼體段配接，及諸如使用一雷射穿過光學透射區域照射界定第一特徵部之光學吸收區域以形成焊接接頭。第一殼體段或第二殼體段可支撐諸如包括一導電基板之一雙極板。可諸如使用一墊圈或密封件以在導電基板之一周邊處或附近提供進一步密封。A battery assembly, such as a bipolar battery assembly, generally includes: a first housing section that includes an optical absorption area defining a first feature; and a second housing section that includes an optical transmission area, the The second shell segment defines a second feature portion, and the second feature portion is sized and shaped to mate with the first feature portion. The first feature part and the second feature part form an airtight seal including a welded joint. Manufacturing such an assembly may include physically mating the first housing with the second housing section, and, for example, using a laser to illuminate the optical absorption area defining the first feature through the optical transmission area to form a welded joint. The first housing section or the second housing section may support, for example, a bipolar plate including a conductive substrate. A gasket or seal may be used, for example, to provide further sealing at or near the periphery of one of the conductive substrates.

本發明內容意欲提供本專利申請案之標的之概述。本發明內容不意欲提供本發明之一排他或詳盡說明。包含詳細描述以提供關於本專利申請案之進一步資訊。This summary is intended to provide an overview of the subject matter of this patent application. This summary is not intended to provide an exclusive or detailed description of the invention. A detailed description is included to provide further information about this patent application.

優先權之主張 本專利申請案主張2017年10月31日申請之標題為「BIPOLAR BATTERY PLATE ASSEMBLY AND RELATED MECHANICAL COUPLING TECHNIQUE」之Moomaw之美國臨時專利申請案序號62/579,548 (代理人檔案號碼3601.025PRV)之優先權之權利，該案之全部內容特此以引用的方式併入本文中。 Claim of priority This patent application claims the priority of Moomaw's U.S. Provisional Patent Application No. 62/579,548 (Attorney File No. 3601.025PRV) filed on October 31, 2017, titled "BIPOLAR BATTERY PLATE ASSEMBLY AND RELATED MECHANICAL COUPLING TECHNIQUE" Rights, the entire content of the case is hereby incorporated by reference.

圖1大體上圖解說明包括一第一殼體段101、一配接第二殼體段104、及一雙極板113組件之一實例100的一側視圖(諸如一剖視圖)。第一殼體段可包含包括一光學透射材料之一部分或一整體。舉例而言，第一殼體段101可界定特徵部，諸如具有經定大小且塑形以與第二殼體段104上之一對應特徵部102配接之一橫截面的一特徵部103。第二殼體段104可包含包括一光學吸收材料之一部分或一整體。舉例而言，第一殼體段101可在包括特徵部103之一區域中或在特徵部103附近為光學透射的，且第二殼體段104可在包括特徵部102之一區域中或在特徵部102附近為光學吸收的。對應特徵部102及103可提供具有一干涉配合之一「榫槽」組態且可圍繞第一殼體段101及第二殼體段104之周邊形成包括一焊接接頭之一氣密密封件。FIG. 1 generally illustrates a side view (such as a cross-sectional view) of an example 100 of an assembly including a first housing section 101, a mating second housing section 104, and a bipolar plate 113. The first housing section may include a part or a whole including an optically transmissive material. For example, the first housing section 101 may define a feature, such as a feature 103 having a cross section that is sized and shaped to mate with a corresponding feature 102 on the second housing section 104. The second housing section 104 may include a part or a whole including an optically absorbing material. For example, the first housing section 101 may be optically transmissive in an area including the feature 103 or near the feature 103, and the second housing section 104 may be in an area including the feature 102 or at The vicinity of the feature 102 is optically absorbing. Corresponding features 102 and 103 can provide a "tonn-and-groove" configuration with an interference fit and can form an airtight seal including a welded joint around the periphery of the first housing section 101 and the second housing section 104.

圖1中展示之榫特徵部102及槽特徵部103之橫截面為三角形的。此一橫截面係闡釋性的，且可使用其他形狀，諸如一矩形榫、一倒角或斜角榫、圓形、圓弧形(radiused)或弧形組態或其他形狀。槽特徵部103無需精確地對應於榫特徵部102。舉例而言，第一殼體段101可界定具有足以提供一干涉配合之一橫向寬度或足以為熔化材料或溢流提供額外體積之一深度之一或多者的一槽特徵部103。作為另一闡釋性實例，榫特徵部102之一長度可比槽特徵部103之一深度大20%。此允許榫在焊接期間熔化且塌陷，產生材料流以填充缺陷且確保一氣密接頭。特徵部102及103可分別圍繞第一殼體段101及第二殼體段104之整個橫截面延伸，諸如在殼體段為正方形或矩形(例如，界定一框架)之情況下。在一實例中，特徵部102及103沿殼體段101及104之周邊之邊角可緊密成圓弧為盡可能小(例如，接近一直角)。The cross-sections of the tenon feature 102 and the groove feature 103 shown in FIG. 1 are triangular. This cross section is illustrative, and other shapes may be used, such as a rectangular tenon, a chamfered or beveled tenon, a circle, a radiused or arc configuration or other shapes. The groove feature 103 need not correspond exactly to the tenon feature 102. For example, the first housing section 101 may define a groove feature 103 having one or more of a lateral width sufficient to provide an interference fit or a depth sufficient to provide additional volume for molten material or overflow. As another illustrative example, the length of one of the tenon features 102 may be 20% greater than the depth of one of the groove features 103. This allows the tongue to melt and collapse during welding, creating material flow to fill in defects and ensure an airtight joint. The features 102 and 103 may extend around the entire cross-section of the first housing section 101 and the second housing section 104, respectively, such as when the housing section is square or rectangular (for example, defining a frame). In one example, the corners of the features 102 and 103 along the periphery of the shell segments 101 and 104 can be as close as possible to be as small as possible (for example, close to a right angle).

朝向一內部區域，可藉由一凹入部分或由第一殼體段101或第二殼體段104之一或多者界定之其他特徵部支撐雙極板113。舉例而言，如圖1中展示，第一殼體段101可支撐雙極板113，諸如界定一凹入特徵部(例如，一唇緣或架子)或各自階狀特徵部以支撐雙極板113，連同一順應性密封件(例如，一墊圈114)。墊圈114可如側視圖及端視圖中展示般呈肋狀，諸如具有如圖1中展示之一「雙珠」橫截面144。作為一闡釋性實例，墊圈114可由一耐化學腐蝕且可壓縮材料製成，諸如ePTFE或一類似材料。墊圈114可在壓縮下支撐雙極板113，諸如幫助平衡雙極板113之加載，防止在製造或隨後使用期間對雙極板113之損壞。Toward an inner region, the bipolar plate 113 may be supported by a recessed portion or other features defined by one or more of the first housing section 101 or the second housing section 104. For example, as shown in FIG. 1, the first housing section 101 may support the bipolar plate 113, such as defining a concave feature (eg, a lip or shelf) or respective stepped features to support the bipolar plate 113. Connect a compliant seal (for example, a gasket 114). The gasket 114 may be rib-shaped as shown in the side and end views, such as having a "double bead" cross-section 144 as shown in FIG. 1. As an illustrative example, the gasket 114 may be made of a chemically resistant and compressible material, such as ePTFE or a similar material. The gasket 114 can support the bipolar plate 113 under compression, such as to help balance the loading of the bipolar plate 113 and prevent damage to the bipolar plate 113 during manufacturing or subsequent use.

第一及第二殼體段可在鄰近雙極板之間界定電解質及活性材料區域，諸如一區域132A及一區域132B。雙極板113之一第一表面134可支撐具有一第一導電類型之一第一活性材料(例如，一鉛膏)，且雙極板113之一相對第二表面138可支撐一第二相反導電類型活性材料(例如，氧化鉛膏)。作為闡釋性實例，雙極板113可包含一導電基板，諸如包括一金屬極板或一矽基板。舉例而言，雙極板113可包含摻雜矽，諸如包括單晶或多晶矽之至少一者。矽基板之一純度可包含至少一冶金級純度。以此方式，不要求半導體級晶圓基板。The first and second housing segments may define regions of electrolyte and active material between adjacent bipolar plates, such as a region 132A and a region 132B. A first surface 134 of the bipolar plate 113 can support a first active material (for example, a lead paste) having a first conductivity type, and a second surface 138 of the bipolar plate 113 can support a second opposite Conductive type active material (for example, lead oxide paste). As an illustrative example, the bipolar plate 113 may include a conductive substrate, such as a metal electrode plate or a silicon substrate. For example, the bipolar plate 113 may include doped silicon, such as at least one of single crystal or polycrystalline silicon. A purity of the silicon substrate may include at least one metallurgical grade purity. In this way, no semiconductor-grade wafer substrate is required.

圖2大體上圖解說明包括三個殼體段及諸如對應於一雙極性電池組件之一部分之各自雙極板組件113A及113B連同展示用於執行焊接之一光源150之一對準之一實例200的一側視圖(諸如一剖視圖)。在圖2中，一第一殼體段101A展示成實體上與一第二殼體段104配接。如在圖1之實例中，第一殼體段101A之至少一部分在待焊接接頭105A之一區域處或附近可為光學透射的。第二殼體段104在接頭105A處或附近可為光學吸收的。接頭105A之一角度可對應於第一殼體段101A或第二殼體段104之一外部特徵部106之一角度，諸如以促成光源150之一輸出端之對準或支撐。舉例而言，光源150之一輸出端可在一焊接程序期間毗連外部特徵部106，諸如以將光源150之輸出端之一表面維持於垂直於待焊接接頭105A之一面之一角度之一定向。將光源150放置成較接緊鄰頭105A可藉由在接頭105A處局部地提供較大光能(及因此用於焊接之能量)而增強焊接程序。FIG. 2 generally illustrates an example 200 including three housing segments and respective bipolar plate assemblies 113A and 113B corresponding to a part of a bipolar battery assembly together with a light source 150 for performing welding. A side view (such as a cross-sectional view) of. In FIG. 2, a first housing section 101A is shown as physically mating with a second housing section 104. As in the example of FIG. 1, at least a part of the first housing section 101A may be optically transmissive at or near an area of the joint 105A to be welded. The second housing section 104 may be optically absorbing at or near the joint 105A. An angle of the joint 105A may correspond to an angle of an external feature 106 of the first housing section 101A or the second housing section 104, such as to facilitate alignment or support of an output end of the light source 150. For example, an output end of the light source 150 may be adjacent to the external feature 106 during a welding process, such as to maintain a surface of the output end of the light source 150 at an angle perpendicular to a surface of the joint 105A to be welded. Placing the light source 150 closer to the head 105A can enhance the welding process by locally providing greater light energy (and therefore energy for welding) at the joint 105A.

藉由使諸如對應於特徵部106之一殼體段之一外表面成角度，可將光源150維持在一設定Z高度處且使電池堆疊繞Z軸旋轉以諸如圍繞整個周邊產生一焊縫。焊縫穿過一成角度表面進入電池，穿透光學透射第一殼體段101A，被接頭105A內之成角度榫表面吸收。在本文中之實例中，諸如圖2中展示，一焊接程序可運用一單一光源循序進行，或同時進行，諸如每一光學透射殼體段使用一個雷射，或使用多個雷射，諸如當堆疊組件維持在壓縮狀態下時。By angling, for example, an outer surface of a housing segment corresponding to the feature 106, the light source 150 can be maintained at a set Z height and the battery stack can be rotated around the Z axis, such as to create a weld around the entire periphery. The welding seam enters the battery through an angled surface, penetrates the optically transmissive first housing section 101A, and is absorbed by the angled tongue surface in the joint 105A. In the examples in this article, such as shown in Figure 2, a welding process can be performed sequentially using a single light source, or simultaneously, such as using one laser for each optically transparent housing section, or using multiple lasers, such as when When the stacked components are maintained in a compressed state.

從光源150發射之光能152 (例如，雷射光)可穿過第一殼體段101A之一光學透射部分傳輸以諸如藉由在一「榫」特徵部之一位置處加熱第二殼體段104之一光學吸收部分而加熱接頭105B以形成一焊接接頭。第二殼體段104之光學吸收區域大體上在與一對應波長範圍(第二殼體段在該波長範圍內為光學透射的，諸如對應於光源150之一發射波長(例如，一紅外波長範圍))重疊之一指定波長範圍內為光學吸收的。圖2中展示之方法及組態可以一模組方式促成單元堆疊之組裝。舉例而言，在一焊接程序期間，第一殼體段101A、第二殼體段104及一第三殼體段101B可保持在壓縮狀態下。此壓縮允許包括接頭105A之一部分之一榫特徵部熔化且最終可在第一殼體段101A與第二殼體段104之間產生一齊平配合。The light energy 152 (for example, laser light) emitted from the light source 150 can be transmitted through an optically transmissive part of the first housing section 101A, such as by heating the second housing section at a position of a "tenon" feature One of 104 optically absorbs the part and heats the joint 105B to form a welded joint. The optical absorption area of the second housing section 104 is substantially in a corresponding wavelength range (the second housing section is optically transmissive in this wavelength range, such as corresponding to one of the emission wavelengths of the light source 150 (for example, an infrared wavelength range). )) Overlapping one of the specified wavelength ranges is optically absorbing. The method and configuration shown in Figure 2 can facilitate the assembly of unit stacks in a modular manner. For example, during a welding procedure, the first housing section 101A, the second housing section 104 and a third housing section 101B may be kept in a compressed state. This compression allows one of the tenon features including a portion of the joint 105A to melt and ultimately can produce a flush fit between the first housing section 101A and the second housing section 104.

大體上，圖2之實例200中展示之堆疊可類似於圖1，其中第一殼體段101A及第三殼體段101B包含至少在接頭105A及105B附近的光學透射區域。如在圖1中，可藉由第一殼體段101A及一墊圈114A支撐第一雙極板113A，且可藉由一第二墊圈114B支撐第二雙極板113B及等等，如可藉由提供以支援一指定端子電壓之單元之總計數進行判定。可在鄰近雙極板113A與113B之間提供一區域132，諸如以為一固體或液體電解質提供一空間。舉例而言，可在區域132中提供一吸收玻璃氈(AGM)材料或隔板之一或多者，且區域132亦可在電解質之相對側上為活性材料提供空間。In general, the stack shown in the example 200 of FIG. 2 may be similar to that of FIG. 1, where the first housing section 101A and the third housing section 101B include optically transmissive areas at least near the joints 105A and 105B. As in FIG. 1, the first bipolar plate 113A can be supported by the first housing section 101A and a gasket 114A, and the second bipolar plate 113B can be supported by a second gasket 114B and so on, as can be It is judged by the total count of the units provided to support a specified terminal voltage. A region 132 may be provided between adjacent bipolar plates 113A and 113B, such as to provide a space for a solid or liquid electrolyte. For example, one or more of an absorbent glass mat (AGM) material or separator may be provided in the area 132, and the area 132 may also provide space for the active material on the opposite side of the electrolyte.

圖3大體上圖解說明包括殼體段及端部段之一堆疊(諸如包括一雙極性電池組件之一部分)之一實例300的一側視圖(諸如一剖視圖)。如在圖1及圖2之實例中，圖3中展示之堆疊可包含一系列焊接接頭，諸如包括藉由各自殼體段界定之配接特徵部之雷射焊接接頭105A、105B、105C、105D、105E、105F及105G。某些殼體段可在接頭處或附近具有光學透射區域，諸如殼體段101A、101B及101C，其等分別配接至可在接頭處或附近具有光學吸收區域之殼體段(諸如殼體段104A、104B、104C)。Figure 3 generally illustrates a side view (such as a cross-sectional view) of an example 300 including a housing section and a stack of end sections (such as including a portion of a bipolar battery assembly). As in the example of Figures 1 and 2, the stack shown in Figure 3 may include a series of welded joints, such as laser welded joints 105A, 105B, 105C, 105D including mating features defined by respective housing segments , 105E, 105F and 105G. Certain housing sections may have optically transmissive areas at or near the joint, such as housing sections 101A, 101B, and 101C, which are respectively mated to housing sections that may have optically absorbing areas at or near the joint (such as housing Segments 104A, 104B, 104C).

包括電池組件之一「端蓋」之段可具有一略微不同形狀且亦可包括光學透射或光學吸收區域。舉例而言，一第一端蓋107A可包含接頭105A處或附近的至少一光學透射區域。類似地，一相對第二端蓋107B可包含接頭105G處或附近的至少一光學吸收區域。出於印商標(branding)或其他目的(例如，識別不同電壓或容量)，可改變各自段之一色彩或不透明度之一或多者。舉例而言，一色碼(例如，具有對應於不同數值之不同色彩之一系列段)或對比色可用於向一使用者指示電池組件之一容量、化學物、電壓或應用(例如，船舶對車輛)或用於指示其來源。作為一闡釋性實例，透射段(諸如端蓋107A及107B)可為透明的，且光學吸收段(諸如殼體段104A、104B、104C及107B)可為彩色的。The section including the "end cap" of one of the battery components may have a slightly different shape and may also include optical transmission or optical absorption regions. For example, a first end cap 107A may include at least one optically transmissive area at or near the joint 105A. Similarly, an opposite second end cap 107B may include at least one optical absorption area at or near the joint 105G. For branding or other purposes (for example, to identify different voltages or capacities), one or more of the color or opacity of each segment can be changed. For example, a color code (e.g., a series of segments with different colors corresponding to different values) or a contrast color can be used to indicate to a user a capacity, chemical, voltage, or application of a battery assembly (e.g., ship to vehicle) Or used to indicate its source. As an illustrative example, transmissive sections (such as end caps 107A and 107B) may be transparent, and optically absorbing sections (such as housing sections 104A, 104B, 104C, and 107B) may be colored.

通常，雙極板組件(諸如圖2中展示之組件113A及113B)可與活性材料垂直地堆疊，直至建立一指定電池端子電壓。舉例而言，在建構如圖3中展示之一6單元電池組時，可首先放置端蓋107B且其後接著包含一雙極板組件之殼體段101C。在藉由殼體段形成之單元腔內，可放置一正極活性材料、一負極活性材料及一隔板。接著，下一殼體段104C可放置於殼體段101C之上及等等，終止於另一端蓋107A。可使用成品電池之一總指定端子電壓來判定需要堆疊在端蓋107A與107B之間之單元數目。Generally, bipolar plate components (such as components 113A and 113B shown in FIG. 2) can be stacked vertically with the active material until a specified battery terminal voltage is established. For example, when constructing a 6-cell battery pack as shown in FIG. 3, the end cap 107B can be placed first and then the housing section 101C including a bipolar plate assembly can be followed. In the unit cavity formed by the shell section, a positive electrode active material, a negative electrode active material and a separator can be placed. Then, the next housing section 104C can be placed on the housing section 101C and so on, terminating at the other end cap 107A. The total specified terminal voltage of one of the finished batteries can be used to determine the number of cells that need to be stacked between the end caps 107A and 107B.

一旦將全部組件堆疊在一起，便可在端蓋107A與107B之間施加一壓縮力以使全部部分緊密接觸(例如，實體上配接殼體段)。可在其中各殼體段經雷射焊接至下一殼體段之組裝程序期間維持此壓縮力。結果係具有活性材料之適當壓縮以獲得指定效能之一焊接且氣密密封電池堆疊。Once all the components are stacked together, a compressive force can be applied between the end caps 107A and 107B to bring all parts into close contact (for example, physically mating the housing segments). This compressive force can be maintained during the assembly process in which each shell section is laser welded to the next shell section. The result is a welded and hermetically sealed battery stack with proper compression of the active material to obtain a specified performance.

圖4大體上圖解說明包括殼體段及一閥埠110 (諸如包括一雙極性電池組件之一部分)之一實例400的一側視圖(諸如一剖視圖)。在圖4之闡釋性實例中，一第一殼體段101至少在對應於與一第二殼體段104A及一端蓋107上之配接榫特徵部對準之槽特徵部之區域中可為光學透射的。第二殼體段104A及端蓋107至少在其中當第一殼體段101與第二殼體段104A及端蓋107配接時將形成焊接接頭的區域中可為光學吸收的。閥埠110可界定與藉由第一殼體段101、第二殼體段104A及端蓋107之一或多者支撐之集電器(例如，單極性或雙極性電池極板)之間之一電解質區域連通的一孔隙或中空區域。閥埠110可終止於一閥塊108，諸如(諸如)為一密封鉛酸電池提供一安全閥或罩蓋112。閥塊108亦可諸如藉由從閥塊108內照射端蓋107或第二殼體段104A之一光學吸收區域而焊接至包括第一殼體段101、第二殼體段104A及端蓋107之一堆疊，諸如以在一位置109或其他位置處形成一焊縫。FIG. 4 generally illustrates a side view (such as a cross-sectional view) of an example 400 including a housing section and a valve port 110 (such as including part of a bipolar battery assembly). In the illustrative example of FIG. 4, a first housing section 101 can be at least in an area corresponding to a groove feature aligned with a second housing section 104A and a mating tenon feature on one end cover 107 Optically transmissive. The second housing section 104A and the end cap 107 may be optically absorbing at least in the area where the welding joint will be formed when the first housing section 101 is mated with the second housing section 104A and the end cap 107. The valve port 110 can be defined between one of the current collectors (for example, unipolar or bipolar battery plates) supported by one or more of the first housing section 101, the second housing section 104A, and the end cap 107 A pore or hollow area connected by the electrolyte area. The valve port 110 may terminate in a valve block 108, such as, for example, providing a safety valve or cover 112 for a sealed lead-acid battery. The valve block 108 can also be welded to include the first housing section 101, the second housing section 104A and the end cap 107, such as by irradiating one of the optical absorption regions of the end cap 107 or the second housing section 104A from the valve block 108 One is stacked, such as to form a weld at a location 109 or other locations.

圖5大體上圖解說明諸如使用如關於本文中之其他實例展示且描述之一或多個技術或組態來製造之一6單元雙極性電池組件500 (例如，諸如具有如同圖3中展示之實例之一內部構造)。各自第一殼體段101A、101B及101C可實體上與對應第二殼體段104A、104B及104C配接。端蓋(諸如一端蓋107)可與電池之各端部上之最後段配接。電池組件500可被放置於壓縮狀態中，且可諸如使用使用對準特徵部(例如，對應於如圖2中展示之外部特徵部106之肋狀區域)支撐或對準之一雷射圍繞配接段之周邊形成焊接接頭。一閥塊108可附接至電池組件500，諸如使用一雷射焊接技術從藉由閥塊108界定之一或多個閥埠內進行焊接。可提供安全閥或罩蓋112A、112B、112C、112D、112E及112F，諸如密封與殼體段之間之各自電解質區域連通之閥埠。可提供一電端子111，諸如電耦合至藉由端蓋107支撐之一單極性極板。FIG. 5 generally illustrates, such as using one or more techniques or configurations as shown and described with respect to other examples herein to manufacture a 6-cell bipolar battery assembly 500 (e.g., such as having the example shown in FIG. 3 One of the internal structure). The respective first housing segments 101A, 101B, and 101C can be physically mated with the corresponding second housing segments 104A, 104B, and 104C. End caps (such as end cap 107) can be mated with the last section on each end of the battery. The battery assembly 500 can be placed in a compressed state, and can, for example, use an alignment feature (for example, a ribbed area corresponding to the external feature 106 as shown in FIG. 2) to support or align a laser surrounding configuration The periphery of the connecting section forms a welded joint. A valve block 108 may be attached to the battery assembly 500, such as by welding using a laser welding technique from within one or more valve ports defined by the valve block 108. A safety valve or cover 112A, 112B, 112C, 112D, 112E, and 112F can be provided, such as a valve port that seals and communicates with the respective electrolyte regions between the housing sections. An electrical terminal 111 may be provided, such as electrically coupled to a unipolar plate supported by the end cap 107.

通常，在本文中之實例(諸如圖5中展示之成品組件500)中，組成一電池組件之結構之組件已經雷射焊接在一起以形成一牢固且氣密密封封裝。閥塊108亦可焊接至電池組件，諸如以為組件500提供額外強度或剛度。閥塊108之間之焊接無需處於拉伸狀態，而其他焊接位置可經機械地加載於拉伸狀態。電池組件組態之各種闡釋性實例可包含一6單元、12單元或一24單元配置以產生用於電池組件(假定一鉛酸化學物)之約12 V、約24 V或約48 V端子電壓。Generally, in the examples herein (such as the finished assembly 500 shown in FIG. 5), the components that make up the structure of a battery assembly have been laser welded together to form a strong and hermetically sealed package. The valve block 108 may also be welded to the battery assembly, such as to provide additional strength or rigidity to the assembly 500. The welding between the valve blocks 108 does not need to be in a stretched state, and other welding positions can be mechanically loaded in the stretched state. Various illustrative examples of battery pack configurations can include a 6-cell, 12-cell, or a 24-cell configuration to generate about 12 V, about 24 V, or about 48 V terminal voltage for the battery assembly (assuming a lead-acid chemical) .

在一闡釋性實例中，諸如一旦包括端蓋107及殼體段101A、101B、101C、104A、104B及104C之一堆疊已圍繞其周邊完全焊接，便可移除一壓縮力。堆疊可垂直地定向且可諸如使用如圖4中展示之一技術或組態來添加閥塊108。為了額外強度，可沿單元框架及端蓋按規則間隔形成一或多個接頭。在此情況中，用於焊接之雷射光可穿透閥塊108之厚度之一部分或全部厚度以到達一接頭表面。在此一實例中，閥塊108可具有一厚度，減小該厚度以允許雷射光之有效率透射。In an illustrative example, a compressive force can be removed, such as once a stack including end cap 107 and housing segments 101A, 101B, 101C, 104A, 104B, and 104C has been completely welded around its periphery. The stack may be oriented vertically and valve blocks 108 may be added, such as using one of the techniques or configurations shown in FIG. 4. For extra strength, one or more joints can be formed at regular intervals along the unit frame and end caps. In this case, the laser light used for welding can penetrate part or all of the thickness of the valve block 108 to reach a joint surface. In this example, the valve block 108 may have a thickness which is reduced to allow efficient transmission of laser light.

圖6大體上圖解說明用於在一電池組件(例如，一雙極性電池組件)之殼體段之間形成一焊接接頭之一技術600，諸如一方法。舉例而言，在600，一第一殼體段可實體上與一第二殼體段配接。第一殼體段可包含界定一第一特徵部(例如，一榫特徵部)之一光學吸收區域且第二殼體段可包含界定一第二特徵部(例如，一槽特徵部)之一光學透射區域。在610，可諸如使用穿過光學透射區域之雷射光來照射界定第一特徵部之光學吸收區域以在第一特徵部與第二特徵部之間形成一焊接接頭。Figure 6 generally illustrates a technique 600, such as a method, for forming a welded joint between the housing segments of a battery assembly (eg, a bipolar battery assembly). For example, at 600, a first housing section may be physically mated with a second housing section. The first housing section may include an optical absorption area that defines a first feature (eg, a tenon feature) and the second housing section may include one that defines a second feature (eg, a groove feature) Optical transmission area. At 610, the optical absorption area defining the first feature may be irradiated, such as with laser light passing through the optical transmission area, to form a welded joint between the first feature and the second feature.

通常，光學吸收區域在與一對應波長範圍(第二殼體段在該波長範圍內為光學透射的)重疊之一指定波長範圍內為光學吸收的，該指定波長範圍包含用於照射光學吸收區域之一光波長。雷射光可包含指定波長範圍內之一波長。在一實例中，第一或第二殼體段之一或多者可包含一外部特徵部以支撐或對準用於照射第一及第二殼體段以形成焊縫之一光源之一輸出端之一或多者。一順應性密封件(諸如一墊圈)可應用於第一或第二殼體段之一或多者，諸如以輔助保護或支撐由第一或第二殼體段容置之一雙極板組件之一或多者。使用技術600，可藉由一雷射焊接接頭形成一氣密密封件。順應性密封件可提供冗餘以避免一電解質從第一殼體段與第二殼體段之間界定之一腔體洩漏。此一焊接及順應性密封件組態亦可抑制鄰近密封電解質區域之間之洩漏。Generally, the optical absorption region is optically absorbing in a specified wavelength range overlapping a corresponding wavelength range (the second housing section is optically transmissive in this wavelength range), and the specified wavelength range includes the optical absorption region for illuminating One of the wavelengths of light. The laser light can contain a wavelength within the specified wavelength range. In an example, one or more of the first or second housing segments may include an external feature to support or align the first and second housing segments to form a weld, a light source, and an output. One or more. A compliant seal (such as a gasket) may be applied to one or more of the first or second housing sections, such as to assist in protecting or supporting a bipolar plate assembly contained by the first or second housing section One or more. Using technology 600, an airtight seal can be formed by a laser welding joint. The compliant seal can provide redundancy to prevent an electrolyte from leaking from a cavity defined between the first housing section and the second housing section. This configuration of welding and compliant seals can also inhibit leakage between adjacent sealed electrolyte areas.

下文非限制實例之各者可獨立存在，或可以各種排列或組合與本文件中描述之其他態樣或其他標的之一或多者組合。Each of the following non-limiting examples can exist independently, or can be combined with one or more of other aspects or other objects described in this document in various permutations or combinations.

實例1可包含一種電池組件，諸如雙極性電池組件之至少一部分，其包括：一第一殼體段，其包括界定一第一特徵部之一光學吸收區域；及一第二殼體段，其包括一光學透射區域，該第二殼體段界定一第二特徵部，該第二特徵部經定大小且塑形以與該第一特徵部配接。該第一特徵部及該第二特徵部形成包括一焊接接頭之一氣密密封件且該光學吸收區域在與該第二殼體段光學透射之一對應波長範圍重疊之一指定波長範圍內為光學吸收的。Example 1 may include a battery assembly, such as at least a part of a bipolar battery assembly, which includes: a first housing section that includes an optical absorption region defining a first feature; and a second housing section that It includes an optically transmissive area, the second housing segment defines a second feature portion, and the second feature portion is sized and shaped to be mated with the first feature portion. The first feature portion and the second feature portion form an airtight seal that includes a welded joint, and the optical absorption area is optically within a specified wavelength range that overlaps a corresponding wavelength range of the optical transmission of the second housing section Absorbed.

在實例2中，實例1之標的包含界定該第二特徵部之該第二殼體段之一光學透射區域。In Example 2, the subject of Example 1 includes an optically transmissive area of the second housing section that defines the second feature.

在實例3中，實例1或2之任一者之標的包含藉由該第一殼體段或該第二殼體段之至少一者支撐的一雙極性電池極板(雙極板)。In Example 3, the subject of either of Examples 1 or 2 includes a bipolar battery plate (bipolar plate) supported by at least one of the first housing section or the second housing section.

在實例4中，實例3之標的包含相對於該焊接接頭定位成緊鄰該雙極板的一順應性密封件。In Example 4, the subject of Example 3 includes a compliant seal positioned adjacent to the bipolar plate with respect to the welded joint.

在實例5中，實例3或4之任一者之標的包含一雙極板，其包括一導電基板、定位於該導電基板之一第一表面上之一第一活性材料、及定位於該導電基板之與該第一表面相對之一第二表面上之一第二活性材料，該第二活性材料具有與該第一活性材料相反之一極性。In Example 5, the subject of any one of Examples 3 or 4 includes a bipolar plate, which includes a conductive substrate, a first active material positioned on a first surface of the conductive substrate, and a first active material positioned on the conductive substrate. A second active material on a second surface of the substrate opposite to the first surface, the second active material having a polarity opposite to the first active material.

在實例6中，實例1至5之任一者之標的包含該第一殼體段或該第二殼體段之一者包括一閥埠，該閥埠經定大小且塑形以允許一雷射從與該閥埠連通之一閥塊內照射一光學吸收區域。In Example 6, the subject of any one of Examples 1 to 5 including one of the first housing section or the second housing section includes a valve port that is sized and shaped to allow a mine The shot illuminates an optical absorption area from a valve block connected with the valve port.

在實例7中，實例1至6之任一者之標的包含該第一殼體段或該第二殼體段之一者包括該電池組件之一端部段。In Example 7, the subject of any one of Examples 1 to 6 including one of the first housing section or the second housing section includes an end section of the battery assembly.

在實例8中，實例1至7之任一者之標的包含該第一特徵部及該第二特徵部分別界定一突出三角形橫截面及具有一配接三角形橫截面之一腔體。In Example 8, the subject of any one of Examples 1 to 7 includes the first feature portion and the second feature portion respectively defining a protruding triangular cross section and a cavity having a mating triangular cross section.

在實例9中，實例1至8之任一者之標的包含該第一殼體段及該第二殼體段包括一聚合物材料。In Example 9, the subject matter of any one of Examples 1 to 8 includes the first housing section and the second housing section including a polymer material.

在實例10中，實例1至9之任一者之標的包含該第一特徵部及該第二特徵部在配接時提供一干涉配合。In Example 10, the subject of any one of Examples 1 to 9 includes the first feature and the second feature to provide an interference fit when mating.

實例11可包含一種諸如可用於製造一電池組件，諸如一雙極性電池組件之一部分或一整體之技術，諸如一種方法。在實例11中，一種方法包括：實體上將包括界定一第一特徵部之一光學吸收區域之一第一殼體段與包括一光學透射區域之一第二殼體段配接，該第二殼體段界定一第二特徵部，該第二特徵部經定大小且塑形以與該第一特徵部配接；及穿過該光學透射區域照射界定該第一特徵部之該光學吸收區域以形成一焊接接頭。該光學吸收區域在與該第二殼體段為光學透射之一對應波長範圍重疊之一指定波長範圍內為光學吸收的，其中該指定波長範圍包含用於該照射該光學吸收區域之一光波長。Example 11 may include a technique, such as a method, that can be used to manufacture a battery assembly, such as a part or a whole of a bipolar battery assembly. In Example 11, a method includes: physically mating a first housing section including an optical absorption region defining a first feature with a second housing section including an optical transmission region, the second The housing segment defines a second feature portion, the second feature portion is sized and shaped to mate with the first feature portion; and irradiates the optical absorption region defining the first feature portion through the optical transmission area To form a welded joint. The optical absorption region is optically absorbing in a designated wavelength range overlapping with a wavelength range corresponding to the optical transmission of the second housing section, wherein the designated wavelength range includes a wavelength of light used to illuminate the optical absorption region .

在實例12中，實例11之標的包含該照射包括使用一雷射來形成該焊接接頭。In Example 12, the subject of Example 11 includes the irradiation including the use of a laser to form the welded joint.

在實例13中，實例11或12之任一者之標的包含在照射該光學吸收區域之前將一雙極性電池極板(雙極板)附接至該第一殼體段或該第二殼體段之至少一者，該雙極板包括一導電基板、定位於該導電基板之一第一表面上之一第一活性材料、及定位於該導電基板之與該第一表面相對之一第二表面上之一第二活性材料，該第二活性材料具有與該第一活性材料相反之一極性。In Example 13, the subject of either Example 11 or 12 includes attaching a bipolar battery plate (bipolar plate) to the first housing section or the second housing before irradiating the optical absorption region At least one of the segments, the bipolar plate includes a conductive substrate, a first active material positioned on a first surface of the conductive substrate, and a second active material positioned on the conductive substrate opposite to the first surface A second active material on the surface, the second active material having a polarity opposite to the first active material.

在實例14中，實例13之標的包含將一順應性密封件應用於該雙極板之一周邊。In Example 14, the subject of Example 13 includes applying a compliant seal to a periphery of the bipolar plate.

在實例15中，實例11至14之任一者之標的包含該第一殼體段或該第二殼體段之一者包括一閥埠，且該方法包含從與該閥埠連通之一閥塊內照射一光學吸收區域。In Example 15, the subject of any one of Examples 11 to 14 includes one of the first housing section or the second housing section including a valve port, and the method includes a valve communicating with the valve port An optical absorption area is illuminated within the block.

在實例16中，實例11至15之任一者之標的包含該第一特徵部及該第二特徵部分別界定一突出三角形橫截面及具有一配接三角形橫截面之一腔體。In Example 16, the subject of any one of Examples 11 to 15 includes the first feature portion and the second feature portion respectively defining a protruding triangular cross-section and a cavity having a mating triangular cross-section.

在實例17中，實例11至16之任一者之標的包含將該第一特徵部及該第二特徵部配接包括使用由該第一特徵部及該第二特徵部提供之一干涉配合。In Example 17, the subject matter of any one of Examples 11 to 16 includes mating the first feature and the second feature including using an interference fit provided by the first feature and the second feature.

實例18可包含一種諸如可用於製造一電池組件，諸如一雙極性電池組件之一部分或一整體之技術，諸如一種方法。在實例18中，一種方法包括：實體上將包括界定一第一特徵部之一光學吸收區域之一第一殼體段與包括一光學透射區域之一第二殼體段配接，該第二殼體段界定一第二特徵部，該第二特徵部經定大小且塑形以與該第一特徵部配接；及將一雙極性電池極板(雙極板)附接至該第一殼體段或該第二殼體段之至少一者，該雙極板包括一導電基板、定位於該導電基板之一第一表面上之一第一活性材料、及定位於該導電基板之與該第一表面相對之該第二表面上之一第二活性材料，該第二活性材料具有與該第一活性材料相反之一極性。在實例18中，該方法包括穿過該光學透射區域雷射焊接界定該第一特徵部之該光學吸收區域以在該第一特徵部與該第二特徵部之間形成一焊接接頭。該光學吸收區域在與該第二殼體段為光學透射之一對應波長範圍重疊之一指定波長範圍內為光學吸收的，該指定波長範圍包含用於雷射焊接該光學吸收區域之一光波長。Example 18 may include a technique such as a method that can be used to manufacture a battery assembly, such as a part or an entirety of a bipolar battery assembly. In Example 18, a method includes: physically mating a first housing section including an optical absorption area defining a first feature with a second housing section including an optical transmission area, the second The housing segment defines a second feature portion, the second feature portion is sized and shaped to mate with the first feature portion; and a bipolar battery plate (bipolar plate) is attached to the first At least one of the housing section or the second housing section, the bipolar plate includes a conductive substrate, a first active material positioned on a first surface of the conductive substrate, and a sum positioned on the conductive substrate A second active material on the second surface opposite to the first surface, the second active material having a polarity opposite to the first active material. In Example 18, the method includes laser welding through the optically transmissive area to define the optically absorbing area of the first feature to form a welded joint between the first feature and the second feature. The optical absorption region is optically absorbing in a specified wavelength range overlapping with a wavelength range corresponding to the optical transmission of the second housing section, and the specified wavelength range includes a light wavelength used for laser welding of the optical absorption region .

在實例19中，實例18之標的包含將一順應性密封件應用於該雙極板之一周邊。In Example 19, the subject of Example 18 includes applying a compliant seal to a periphery of the bipolar plate.

在實例20中，實例18或19之任一者之標的包含該第一特徵部及該第二特徵部分別界定一突出三角形橫截面及具有一配接三角形橫截面之一腔體。In Example 20, the subject of either Example 18 or 19 includes the first feature portion and the second feature portion respectively defining a protruding triangular cross-section and a cavity with a mating triangular cross-section.

上文實施方式包含對隨附圖式之參考，隨附圖式形成實施方式之一部分。圖式藉由圖解說明展示其中可實踐本發明之特定實施例。此等實施例通常亦被稱為「實例」。此等實例可包含除所展示或描述之元件以外之元件。然而，本發明者亦預期其中僅提供所展示或描述之該等元件之實例。此外，本發明者亦預期使用關於一特定實例(或其之一或多個態樣)或關於本文中展示或描述之其他實例(或其等之一或多個態樣)展示或描述之該等元件(或其等之一或多個態樣)之任何組合或排列的實例。The above embodiments include references to accompanying drawings, which form part of the embodiments. The drawings illustrate specific embodiments in which the invention can be practiced by way of illustration. These embodiments are also commonly referred to as "examples." These examples may include elements in addition to those shown or described. However, the inventors also anticipate that only examples of the elements shown or described are provided therein. In addition, the inventors also expect to use the specific example (or one or more aspects thereof) or other examples (or one or more aspects thereof) shown or described herein. Examples of any combination or permutation of other elements (or one or more aspects thereof).

若本文件與以引用的方式如此併入之任何文件之間之使用不一致，則以本文件中之使用為準。If there is inconsistency between the use of this document and any document so incorporated by reference, the use in this document shall prevail.

在本文件中，獨立於「至少一個」或「一或多個」之任何其他例項或使用，如專利文件中常見之術語「一(a)」或「一個(an)」用以包含一個或一個以上。在本文件中，使用術語「或」來指代一非排他性或，使得「A或B」包含「A但非B」、「B但非A」及「A及B」，除非另有指示。在本文件中，使用術語「包含」及「其中」作為各自術語「包括」及「其中」之通俗英語等效物。再者，在以下發明申請專利範圍中，術語「包含」及「包括」係開放式的，即，包含除在一發明申請專利範圍中之此一術語之後列出之元件以外的元件之一系統、裝置、物品、組合物、配方或程序仍被視為在該發明申請專利範圍之範疇內。此外，在以下發明申請專利範圍中，術語「第一」、「第二」及「第三」等僅用作標籤，且並不意欲對其等目標強加數字要求。In this document, any other examples or usages independent of "at least one" or "one or more", such as the common term "one (a)" or "one (an)" in patent documents, is used to include one Or more than one. In this document, the term "or" is used to refer to a non-exclusive or such that "A or B" includes "A but not B", "B but not A" and "A and B" unless otherwise indicated. In this document, the terms "including" and "wherein" are used as the plain English equivalents of the respective terms "including" and "wherein". Furthermore, in the scope of the following invention applications, the terms "include" and "include" are open-ended, that is, include one of the elements other than the elements listed after this term in the scope of an invention application. , Devices, articles, compositions, formulas or procedures are still deemed to be within the scope of the patent application for the invention. In addition, in the scope of the following invention applications, the terms "first", "second", and "third" are only used as labels, and are not intended to impose numerical requirements on such targets.

本文中描述之方法實例可至少部分為機器或電腦實施。一些實例可包含用指令編碼之一電腦可讀媒體或機器可讀媒體，該等指令可操作以組態一電子裝置以執行如上文實例中描述之方法。此等方法之一實施方案可包含程式碼，諸如微程式碼、組合語言程式碼、一較高階語言程式碼或類似者。此程式碼可包含用於執行各種方法之電腦可讀指令。程式碼可形成電腦程式產品之部分。此外，在一實例中，程式碼可諸如在執行期間或在其他時間有形地儲存於一或多個揮發性、非暫時性或非揮發性有形電腦可讀媒體上。此等有形電腦可讀媒體之實例可包含(但不限於)硬碟、可抽換式磁碟、可抽換式光碟(例如，光碟及數位視訊光碟)、卡式磁帶、記憶卡或棒、隨機存取記憶體(RAM)、唯讀記憶體(ROM)及類似者。The method examples described herein can be implemented at least partially by machines or computers. Some examples may include a computer-readable medium or a machine-readable medium encoded with instructions that are operable to configure an electronic device to perform the method as described in the examples above. One implementation of these methods may include program code, such as microprogram code, assembly language program code, a higher-level language program code, or the like. This code can contain computer-readable instructions for executing various methods. The code can form part of a computer program product. Furthermore, in one example, the program code may be tangibly stored on one or more volatile, non-transitory, or non-volatile tangible computer-readable media, such as during execution or at other times. Examples of such tangible computer-readable media may include (but are not limited to) hard drives, removable disks, removable optical discs (for example, optical discs and digital video discs), cassette tapes, memory cards or sticks, Random access memory (RAM), read-only memory (ROM) and the like.

上文描述意欲為闡釋性的且非限制性的。舉例而言，上述實例(或其等之一或多個態樣)可彼此結合使用。諸如此項技術之一般技術者在檢視上文描述之後可使用其他實施例。提供摘要以允許讀者快速確定技術揭示內容之本質。應瞭解，其將不會用於解釋或限制發明申請專利範圍之範疇或含義。再者，在上文實施方式中，各種特徵可分組在一起以簡化本發明。此不應被解釋為預期一未主張揭示特徵對於任何發明申請專利範圍係必不可少的。實情係，本發明標的可在於少於一特定所揭示實施例之全部特徵。因此，以下發明申請專利範圍特此作為實例或實施例併入至實施方式中，其中各發明申請專利範圍獨立作為一單獨實施例，且預期此等實施例可以各種組合或排列彼此組合。應參考隨附發明申請專利範圍連同此等發明申請專利範圍所授權之等效物之全範疇判定本發明之範疇。The above description is intended to be illustrative and non-limiting. For example, the above examples (or one or more aspects thereof) can be used in combination with each other. Those skilled in the art can use other embodiments after reviewing the above description. Provide a summary to allow readers to quickly determine the nature of the technically revealed content. It should be understood that it will not be used to explain or limit the scope or meaning of the patent application for invention. Furthermore, in the above embodiments, various features can be grouped together to simplify the present invention. This should not be interpreted as an expectation that an unclaimed revealing feature is essential to the scope of any invention application. In fact, the subject matter of the present invention may lie in less than all the features of a specific disclosed embodiment. Therefore, the following invention application patent scope is hereby incorporated into the embodiment as an example or embodiment, wherein each invention application scope is independently regarded as a separate embodiment, and it is expected that these embodiments can be combined with each other in various combinations or permutations. The scope of the present invention should be determined with reference to the scope of the attached invention application and the full scope of equivalents authorized by the scope of the invention application.

100:實例 101:第一殼體段 101A:第一殼體段 101B:第三殼體段 101C:殼體段 102:榫特徵部 103:槽特徵部 104:第二殼體段 104A:第二殼體段 104B:殼體段 104C:殼體段 105A:接頭 105B:接頭 105C:接頭 105D:接頭 105E:接頭 105F:接頭 105G:接頭 106:外部特徵部 107:端蓋 107A:第一端蓋 107B:第二端蓋 108:閥塊 109:位置 110:閥埠 111:電端子 112:安全閥或罩蓋 112A:安全閥或罩蓋 112B:安全閥或罩蓋 112C:安全閥或罩蓋 112D:安全閥或罩蓋 112E:安全閥或罩蓋 112F:安全閥或罩蓋 113:雙極板 113A:第一雙極板 113B:第二雙極板 114:墊圈 114A:墊圈 114B:第二墊圈 132:區域 132A:區域 132B:區域 134:第一表面 138:第二表面 144:橫截面 150:光源 152:光能 200:實例 300:實例 400:實例 500:6電池雙極性電池組件 600:技術 610:步驟 100: instance 101: The first shell section 101A: The first shell section 101B: third shell section 101C: Shell section 102: Tenon feature 103: Groove feature 104: second shell section 104A: second shell section 104B: Shell section 104C: Shell section 105A: Connector 105B: Connector 105C: Connector 105D: Connector 105E: Connector 105F: Connector 105G: Connector 106: External features 107: end cap 107A: First end cap 107B: second end cap 108: valve block 109: Location 110: valve port 111: Electric terminal 112: safety valve or cover 112A: safety valve or cover 112B: safety valve or cover 112C: safety valve or cover 112D: safety valve or cover 112E: safety valve or cover 112F: safety valve or cover 113: Bipolar Plate 113A: The first bipolar plate 113B: second bipolar plate 114: Washer 114A: Washer 114B: second washer 132: area 132A: Area 132B: area 134: First Surface 138: second surface 144: Cross section 150: light source 152: Light Energy 200: instance 300: instance 400: Example 500: 6-cell bipolar battery pack 600: Technology 610: Step

在不一定按比例繪製之圖式中，相似元件符號可描述不同視圖中之類似組件。具有不同字母下標之相似元件符號可表示類似組件之不同例項。圖式大體上藉由實例而非限制方式圖解說明本文件中論述之各項實施例。In the drawings that are not necessarily drawn to scale, similar component symbols may describe similar components in different views. Similar component symbols with different letter subscripts can represent different examples of similar components. The drawings generally illustrate the various embodiments discussed in this document by way of example rather than limitation.

圖1大體上圖解說明包括第一殼體段及第二殼體段及諸如對應於一雙極性電池組件之一部分之一雙極板組件之一實例的一側視圖(諸如一剖視圖)。FIG. 1 generally illustrates a side view (such as a cross-sectional view) of an example of a bipolar plate assembly including a first housing section and a second housing section, such as a part corresponding to a bipolar battery assembly.

圖2大體上圖解說明包括三個殼體段及諸如對應於一雙極性電池組件之一部分之各自雙極板組件連同用於執行焊接之一光源之一對準之一實例的一側視圖(諸如一剖視圖)。Figure 2 generally illustrates a side view of an example including three housing segments and respective bipolar plate assemblies corresponding to a part of a bipolar battery assembly together with a light source for performing welding (such as A sectional view).

圖3大體上圖解說明包括殼體段及端部段之一堆疊(諸如包括一雙極性電池組件之一部分)之一實例的一側視圖(諸如一剖視圖)。FIG. 3 generally illustrates a side view (such as a cross-sectional view) of an example of a stack (such as including a portion of a bipolar battery assembly) including a casing section and an end section.

圖4大體上圖解說明包括殼體段及一閥埠(諸如包括一雙極性電池組件之一部分)之一實例的一側視圖(諸如一剖視圖)。Figure 4 generally illustrates a side view (such as a cross-sectional view) of an example including a housing section and a valve port (such as including a portion of a bipolar battery assembly).

圖5大體上圖解說明諸如使用如關於本文中之其他實例展示且描述之一或多個技術或組態製造之一6單元雙極性電池組件。Figure 5 generally illustrates the manufacture of a 6-cell bipolar battery assembly such as using one or more techniques or configurations as shown and described with respect to other examples herein.

圖6大體上圖解說明用於在一電池組件之殼體段之間形成一焊接接頭之一技術，諸如一方法。Figure 6 generally illustrates a technique, such as a method, used to form a welded joint between the housing sections of a battery assembly.

100:實例 100: instance

101:第一殼體段 101: The first shell section

102:榫特徵部 102: Tenon feature

103:槽特徵部 103: Groove feature

104:第二殼體段 104: second shell section

113:雙極板 113: Bipolar Plate

114:墊圈 114: Washer

132A:區域 132A: Area

132B:區域 132B: area

134:第一表面 134: First Surface

138:第二表面 138: second surface

144:橫截面 144: Cross section

Claims (22)

一種電池組件，其包括：一第一殼體段，其包括界定一第一特徵部之一光學吸收區域；一第二殼體段，其包括一光學透射區域，該第二殼體段界定一第二特徵部，該第二特徵部經定大小且塑形以實質上與該第一特徵部配接(mate with)；其中該光學吸收區域之該第一特徵部及該光學透射區域之該第二特徵部經焊接以形成一焊接接頭(welded joint)。 A battery assembly includes: a first housing section, which includes an optical absorption area defining a first feature portion; a second housing section, which includes an optical transmission area, and the second housing section defines a The second feature portion, the second feature portion is sized and shaped to substantially mate with the first feature portion; wherein the first feature portion of the optical absorption region and the optical transmission region The second feature is welded to form a welded joint. 如請求項1之電池組件，其包括藉由該第一殼體段或該第二殼體段之至少一者支撐的一雙極板。 Such as the battery assembly of claim 1, which includes a bipolar plate supported by at least one of the first housing section or the second housing section. 如請求項1或2之電池組件，其中該第一特徵部經塑形且定大小以接納該第二特徵部，且其中該第一特徵部及該第二特徵部可提供一干涉配合且形成一氣密密封件。 Such as the battery assembly of claim 1 or 2, wherein the first feature is shaped and sized to receive the second feature, and wherein the first feature and the second feature can provide an interference fit and form An airtight seal. 如請求項1或2之電池組件，其進一步包括成角度以對應於該第一特徵部及該第二特徵部之介面之一部分的一外部特徵部。 Such as the battery assembly of claim 1 or 2, which further includes an external feature portion angled to correspond to a part of the interface of the first feature portion and the second feature portion. 如請求項2之電池組件，其進一步包括一進一步雙極板、及介於該雙極板與該進一步雙極板之間之一電解質區域，其中該電解質區域包括吸收玻璃氈(AGM)材料或一隔板。 Such as the battery assembly of claim 2, which further includes a further bipolar plate and an electrolyte region between the bipolar plate and the further bipolar plate, wherein the electrolyte region includes absorbent glass mat (AGM) material or A partition. 如請求項1或2之電池組件，其進一步包括一閥埠，其中該閥埠界定一孔隙以允許一雷射照射該光學吸收區域之該第一特徵部。 The battery assembly of claim 1 or 2, further comprising a valve port, wherein the valve port defines an aperture to allow a laser to irradiate the first feature of the optical absorption region. 如請求項6之電池組件，其進一步包括在該閥埠之一終端處之一閥塊，其中該閥塊經焊接至該第一殼體段及該第二殼體段之至少一者。 The battery assembly of claim 6, which further includes a valve block at a terminal of the valve port, wherein the valve block is welded to at least one of the first housing section and the second housing section. 如請求項1或2之電池組件，其進一步包括至少一個端蓋，該至少一個端蓋包括一光學吸收區域或一光學透射區域。 The battery assembly of claim 1 or 2, further comprising at least one end cap, the at least one end cap including an optical absorption area or an optical transmission area. 如請求項2之電池組件，其中該雙極板包括：一導電基板；一第一活性材料，其定位於該導電基板之一第一表面上；及一第二活性材料，其定位於該導電基板之與該第一表面相對之一第二表面上，該第二活性材料具有與該第一活性材料相反之一極性。 The battery assembly of claim 2, wherein the bipolar plate includes: a conductive substrate; a first active material positioned on a first surface of the conductive substrate; and a second active material positioned on the conductive substrate On a second surface of the substrate opposite to the first surface, the second active material has a polarity opposite to that of the first active material. 如請求項2之電池組件，其進一步包括一順應性密封件以支撐該雙極板。 Such as the battery assembly of claim 2, which further includes a compliant seal to support the bipolar plate. 如請求項1或2之電池組件，其中該第一特徵部及該第二特徵部分別界定一突出三角形橫截面及具有一配接三角形橫截面之一腔體。 Such as the battery assembly of claim 1 or 2, wherein the first characteristic portion and the second characteristic portion respectively define a protruding triangular cross section and a cavity having a mating triangular cross section. 一種用於製造一電池組件之方法，其包括： 提供包括界定一第一特徵部之一光學吸收區域之一第一殼體段；提供包括一光學透射區域之一第二殼體段，該第二殼體段界定一第二特徵部，其中該第二特徵部經定大小且塑形以實質上與該第一特徵部配接，其中預形成該光學吸收區域之該第一特徵部及該光學透射區域之該第二特徵部以實質上彼此對應；及用一光學輻射照射該第一特徵部以在該第一特徵部及該第二特徵部之一介面處形成一焊接接頭。 A method for manufacturing a battery assembly, which includes: A first housing section including an optical absorption area defining a first feature portion is provided; a second housing section including an optical transmission area is provided, the second housing section defining a second feature portion, wherein the The second feature portion is sized and shaped to substantially mate with the first feature portion, wherein the first feature portion of the optical absorption region and the second feature portion of the optical transmission region are preformed to substantially each other Corresponding; and irradiating the first feature with an optical radiation to form a welded joint at an interface of the first feature and the second feature. 如請求項12之方法，其中該光學輻射包括與該第二殼體段為光學透射之一對應波長範圍重疊之一指定波長範圍。 The method of claim 12, wherein the optical radiation includes a specified wavelength range overlapping with a corresponding wavelength range of the second housing section for optical transmission. 如請求項12或13之方法，其進一步包括在照射該光學吸收區域之前將一雙極板附接至該第一殼體段或該第二殼體段之至少一者，該雙極板包括：一導電基板；一第一活性材料，其定位於該導電基板之一第一表面上；及一第二活性材料，其定位於該導電基板之與該第一表面相對之一第二表面上，該第二活性材料具有與該第一活性材料相反之一極性。 The method of claim 12 or 13, further comprising attaching a bipolar plate to at least one of the first housing section or the second housing section before irradiating the optical absorption region, the bipolar plate comprising : A conductive substrate; a first active material positioned on a first surface of the conductive substrate; and a second active material positioned on a second surface of the conductive substrate opposite to the first surface , The second active material has a polarity opposite to that of the first active material. 如請求項12或13之方法，其進一步包括預形成成角度以對應於該第一特徵部及該第二特徵部之介面之一部分之一外部特徵部，其中該外部特徵部成角度以傳輸依垂直於該第一特徵部之一表面之一定向入射之該光學輻射。 Such as the method of claim 12 or 13, which further includes pre-forming an external feature that is angled to correspond to a portion of the interface of the first feature and the second feature, wherein the external feature is angled to transmit The optical radiation is incident directionally perpendicular to a surface of the first feature. 如請求項12或13之方法，其中該第一特徵部藉由該光學輻射照射以在焊接期間熔化，且進一步形成一氣密密封件。 The method of claim 12 or 13, wherein the first feature is irradiated by the optical radiation to melt during welding and further form an airtight seal. 如請求項12或13之方法，其進一步包括在焊接期間施加一壓縮力。 The method of claim 12 or 13, further comprising applying a compressive force during welding. 如請求項14之方法，其進一步包括提供一順應性密封件以支撐該雙極板。 Such as the method of claim 14, which further includes providing a compliant seal to support the bipolar plate. 如請求項12或13之方法，其進一步包括提供界定一孔隙以允許一雷射照射該光學吸收區域之該第一特徵部的一閥埠。 The method of claim 12 or 13, further comprising providing a valve port defining an aperture to allow a laser to irradiate the first feature of the optical absorption region. 如請求項19之方法，其進一步包括在該閥埠之一終端處提供一閥塊，其中該閥塊與該第一殼體段及該第二殼體段之至少一者焊接在一起。 The method of claim 19, further comprising providing a valve block at one terminal of the valve port, wherein the valve block is welded to at least one of the first housing section and the second housing section. 如請求項13之方法，其進一步包括提供一進一步雙極板、及介於該雙極板與該進一步雙極板之間之一電解質區域，其中該電解質區域包括吸收玻璃氈(AGM)材料或一隔板。 The method of claim 13, further comprising providing a further bipolar plate, and an electrolyte region between the bipolar plate and the further bipolar plate, wherein the electrolyte region includes absorbent glass mat (AGM) material or A partition. 如請求項12或13之方法，其中該第一特徵部及該第二特徵部分別界定一突出三角形橫截面及具有一配接三角形橫截面之一腔體。 Such as the method of claim 12 or 13, wherein the first feature portion and the second feature portion respectively define a protruding triangular cross section and a cavity having a mating triangular cross section.
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US20060278617A1 (en) * 2005-06-10 2006-12-14 Cobasys, Llc Laser welding of battery module enclosure components
US20100136418A1 (en) * 2008-12-01 2010-06-03 Samsung Sdi Co., Ltd. Secondary battery
CN105594021A (en) * 2013-05-23 2016-05-18 格雷腾能源有限公司 Rechargeable battery with wafer current collector and assembly method
WO2017011695A1 (en) * 2015-07-15 2017-01-19 Gridtential Energy, Inc. Bipolar battery seal and thermal rib arrangements

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060278617A1 (en) * 2005-06-10 2006-12-14 Cobasys, Llc Laser welding of battery module enclosure components
US20100136418A1 (en) * 2008-12-01 2010-06-03 Samsung Sdi Co., Ltd. Secondary battery
CN105594021A (en) * 2013-05-23 2016-05-18 格雷腾能源有限公司 Rechargeable battery with wafer current collector and assembly method
WO2017011695A1 (en) * 2015-07-15 2017-01-19 Gridtential Energy, Inc. Bipolar battery seal and thermal rib arrangements

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