JPH01183063A - Sealed lead-acid battery - Google Patents

Sealed lead-acid battery

Info

Publication number
JPH01183063A
JPH01183063A JP63000867A JP86788A JPH01183063A JP H01183063 A JPH01183063 A JP H01183063A JP 63000867 A JP63000867 A JP 63000867A JP 86788 A JP86788 A JP 86788A JP H01183063 A JPH01183063 A JP H01183063A
Authority
JP
Japan
Prior art keywords
separator
vent
acid battery
sealed lead
water repellent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP63000867A
Other languages
Japanese (ja)
Inventor
Hisami Toshima
久美 戸島
Yoshihiro Kobayashi
小林　嘉博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP63000867A priority Critical patent/JPH01183063A/en
Publication of JPH01183063A publication Critical patent/JPH01183063A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/06—Lead-acid accumulators
    • H01M10/12—Construction or manufacture
    • H01M10/126—Small-sized flat cells or batteries for portable equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements
    • H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cell Separators (AREA)
  • Secondary Cells (AREA)

Abstract

PURPOSE:To increase the reliability of a battery by installing a vent in the bottom of a recess formed in the upper part of a container, accommodating a plate group comprising a positive plate, a negative plate, and a separator below the vent, and conducting water repellent treatment in the upper part, facing the vent, of the separator. CONSTITUTION:A vent 6 is installed in the bottom of a recess formed in the upper part of a container 5, and a plate group comprising a positive plate 2, a negative plate, and a separator 4 is accommodated in its lower part so that the upper part 4a of the separator 4 is faced to the vent 6. The upper part 4a is impregnated over 1.5-2mm in width with a toluene solution in which 20% water repellent paraffin is dissolved for water repellent treatment. A battery having this construction is overdischarged at a current of 0.4C for 48 hours and no leakage from the vent is observed.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、密閉形鉛蓄電池に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to a sealed lead acid battery.

従来の技術 従来この種の密閉形鉛蓄電池は、第２図に示すような構
成であった。第２図において１は正極板２、負極板３及
びセパレータ４で構成された極板群を表す。５は極板群
を収納する電槽本体を構成する熱溶着性樹脂からなる枠
体であり、枠体５の上部に形成した凹部には、セル内と
連通ずる排気口６が設けられている。この時、セパレー
タは極２”ｌ−７ 板間の短絡防止と電解液含浸保持の目的で挿入されてい
る。2. Description of the Related Art Conventionally, this type of sealed lead-acid battery has a structure as shown in FIG. In FIG. 2, reference numeral 1 represents an electrode plate group consisting of a positive electrode plate 2, a negative electrode plate 3, and a separator 4. Reference numeral 5 denotes a frame body made of heat-fusible resin that constitutes the main body of the battery case that houses the electrode plate group, and an exhaust port 6 that communicates with the inside of the cell is provided in a recess formed in the upper part of the frame body 5. . At this time, a separator is inserted for the purpose of preventing short circuit between the 2"l-7 plates and retaining electrolyte impregnation.

発明が解決しようとする課題 しかしながら、上記の従来の構成では、例えば排気口６
からはい上がシ、弁部から漏液が生じ易いという欠点を
有していた。Problems to be Solved by the Invention However, in the above conventional configuration, for example, the exhaust port 6
It has the drawback that liquid leakage easily occurs from the valve part.

本発明は、上記従来の問題点を解決するもので、弁部か
らの漏液を生じない密閉形鉛蓄電池を提供することを目
的とする。The present invention solves the above-mentioned conventional problems, and aims to provide a sealed lead-acid battery that does not cause leakage from the valve portion.

課題を解決するための手段 このような問題点を解決するために本発明は、極板群を
構成するセパレータの上部を撥水性を有するパラフィン
、フッ素樹脂、シリコンオイル等により処理して撥水性
を持たせたことを特徴とする。Means for Solving the Problems In order to solve these problems, the present invention makes water repellent by treating the upper part of the separator constituting the electrode plate group with water-repellent paraffin, fluororesin, silicone oil, etc. It is characterized by having

作用 この構成によって、セパレータに含１れた電解液が上部
にはい上がってきても、パラフィン、フ３　ベー／ ッ素樹脂、シリコーンオイル等を塗布した部分ではじか
れ、それ以上上にはい上ることはなくなるので、弁部か
らの漏液のない密閉形鉛蓄電池となる。Effect: With this structure, even if the electrolyte contained in the separator creeps up to the top, it will be repelled by the area coated with paraffin, fluorocarbon resin, silicone oil, etc., and will not rise any further. Since there is no leakage from the valve part, the battery becomes a sealed lead-acid battery.

実施例 以下本発明の実施例について、図面を参照しながら説明
する。第１図において、５は電槽本体を構成する枠体、
６は枠体５の上端に形成された凹部の底部に設けられた
排気口である。この排気口６の下部には、極板群を構成
する正極板２、負極板３およびセパレータ４が収納され
ておシ、セパレータ４の上部４ａは排気口６と対向して
いる。EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings. In FIG. 1, 5 is a frame constituting the battery case body;
Reference numeral 6 denotes an exhaust port provided at the bottom of a recess formed at the upper end of the frame 5. A positive electrode plate 2, a negative electrode plate 3, and a separator 4 constituting an electrode plate group are housed below the exhaust port 6, and an upper portion 4a of the separator 4 faces the exhaust port 6.

上記セパレータの上部４ａの１．６〜２蓋の幅部分には
、撥水性をもつパラフィンを２０チ溶解させたトルエン
溶液を含浸させることによって撥水処理が施されている
。このようにして得られた電池２０個を用いて、定格容
量値の０４倍の電流を用いて、４８時間の過充電を行な
ったところ、弁部からの漏液は全く認められなかった。A 1.6 to 2 lid width portion of the upper part 4a of the separator is subjected to water repellent treatment by impregnating it with a toluene solution in which 20 units of water repellent paraffin are dissolved. When 20 batteries thus obtained were overcharged for 48 hours using a current 04 times the rated capacity value, no leakage from the valve portion was observed.

これに比ベセパレータ上端部への撥水処理を行なわない
従来構成の電池２０個を用いて実施例の電池と同様の試
験を行なったところ、４個の電池において、弁部からの
漏液が水滴状として認められた。In comparison, a test similar to that of the battery in the example was conducted using 20 batteries with a conventional configuration in which no water-repellent treatment was applied to the upper end of the separator, and in 4 batteries, leakage from the valve part was detected. It was recognized as a water droplet.

発萌の効果 べ２ 以上のように本発明は、極板群を構成する！パレータの
上部を撥水処理することにより、この部分への電解液の
含浸はい上Ｖ＊なくして弁部からの漏液をなくすことが
でき、信頼性の向上にも寄与するものである。Effect of sprouting 2 As described above, the present invention configures the electrode plate group! By treating the upper part of the pallet with water repellent treatment, it is possible to eliminate the impregnation of the electrolytic solution into this part and eliminate leakage from the valve part, which also contributes to improved reliability.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例の密閉形鉛蓄電池における極
板群の構成を示す断面図、第２図は従来の密閉形鉛蓄電
池の分解斜視図、第３図は従来の電池の極板群の構造を
示す断面図である。 ２・・・・・・ｔｌｌ板、４・・・・・・セパレータ、
５・・・・・・枠体、６・・・・・・排気口。FIG. 1 is a cross-sectional view showing the configuration of the electrode plate group in a sealed lead-acid battery according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a conventional sealed lead-acid battery, and FIG. It is a sectional view showing the structure of a board group. 2...tll board, 4...separator,
5...Frame body, 6...Exhaust port.

Claims (1)

【特許請求の範囲】[Claims] 電槽上部に凹部を設けるとともに、凹部の底部に排気口
を設け、排気口下部に正極板、負極板、セパレータより
なる極板群を収納し、上記排気口に対向したセパレータ
の上部を撥水処理したことを特徴とする密閉形鉛蓄電池
。A recess is provided at the top of the battery case, an exhaust port is provided at the bottom of the recess, a group of electrode plates consisting of a positive electrode plate, a negative electrode plate, and a separator is housed at the bottom of the exhaust port, and the upper part of the separator facing the exhaust port is water-repellent. A sealed lead-acid battery characterized by being treated.
JP63000867A 1988-01-06 1988-01-06 Sealed lead-acid battery Pending JPH01183063A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63000867A JPH01183063A (en) 1988-01-06 1988-01-06 Sealed lead-acid battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63000867A JPH01183063A (en) 1988-01-06 1988-01-06 Sealed lead-acid battery

Publications (1)

Publication Number Publication Date
JPH01183063A true JPH01183063A (en) 1989-07-20

Family

ID=11485622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63000867A Pending JPH01183063A (en) 1988-01-06 1988-01-06 Sealed lead-acid battery

Country Status (1)

Country Link
JP (1) JPH01183063A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001244148A (en) * 2000-02-29 2001-09-07 Kyocera Corp Electric double-layer capacitor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001244148A (en) * 2000-02-29 2001-09-07 Kyocera Corp Electric double-layer capacitor

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