JPH07183017A - Square sealed battery - Google Patents
Square sealed batteryInfo
- Publication number
- JPH07183017A JPH07183017A JP5324010A JP32401093A JPH07183017A JP H07183017 A JPH07183017 A JP H07183017A JP 5324010 A JP5324010 A JP 5324010A JP 32401093 A JP32401093 A JP 32401093A JP H07183017 A JPH07183017 A JP H07183017A
- Authority
- JP
- Japan
- Prior art keywords
- cap
- safety valve
- sealing body
- welded
- sealed battery
- 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.)
- Granted
Links
Classifications
-
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
-
- 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
-
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/103—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
-
- 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
Description
【０００１】[0001]
【産業上の利用分野】本発明は、角形密閉電池に関す
る。FIELD OF THE INVENTION The present invention relates to a prismatic sealed battery.
【０００２】[0002]
【従来の技術】ニカド電池（ニッケルカドミウム二次電
池）の後継としてニッケル水素電池が採用されてきてい
る。このニッケル水素電池は、正極にニッケルを、負極
に水素吸蔵合金を用いたもので、ニカド電池に比べて単
位体積当たりのエネルギ容量が高く、充放電特性、急速
充電特性、寿命特性等の諸特性についてもニカド電池に
遜色のない特性を有している。2. Description of the Related Art A nickel hydrogen battery has been adopted as a successor to a nicad battery (nickel cadmium secondary battery). This nickel-metal hydride battery uses nickel for the positive electrode and a hydrogen storage alloy for the negative electrode, and has a higher energy capacity per unit volume than Nicad batteries, and has various characteristics such as charge / discharge characteristics, rapid charging characteristics, and life characteristics. Also has characteristics comparable to Nicad batteries.
【０００３】ところで、通常のニカド電池、ニッケル水
素電池は、円筒形とされているために機器への収納に際
してデッドスペースが発生し、特に、小型軽量化を図っ
ているコードレス機器においては大きな問題となってき
ている。そこで、機器への収納に際してデッドスペース
を無くし、その分電池容量の増加を図るようにした角形
の電池が使用されてきている。By the way, since ordinary Ni-Cd batteries and nickel-hydrogen batteries have a cylindrical shape, a dead space is generated when they are housed in a device, which is a serious problem especially in cordless devices that are small and lightweight. It has become to. Therefore, a prismatic battery has been used in which a dead space is eliminated when the device is stored in a device and the battery capacity is increased accordingly.
【０００４】角形密閉電池は、図４に示すように偏平な
直方体状をなし、例えば、高さは、円筒形電池と同じ高
さ、長側面１ａは円筒電池の直径と同じ長さ、短側面１
ｂは長側面１ａの１／３の長さとされており、３個並べ
ると円筒形電池１個分を収納するスペースに相当する大
きさとなるように形成されている。そして、外装缶１内
に発電要素２（図５）が嵌挿され、電解液が注入された
後矩形状の上部開口端１ｃに封口体３が嵌合装着され、
全周を溶接されて密閉構造とされている。The prismatic sealed battery has a flat rectangular parallelepiped shape as shown in FIG. 4. For example, the height is the same as that of the cylindrical battery, and the long side surface 1a is the same as the diameter of the cylindrical battery and the short side surface. 1
The length b is one-third the length of the long side surface 1a, and is formed to have a size corresponding to a space for accommodating one cylindrical battery when three are arranged. Then, the power generation element 2 (FIG. 5) is fitted in the outer can 1, and after the electrolyte is injected, the sealing body 3 is fitted and attached to the rectangular upper opening end 1c.
The entire circumference is welded to form a closed structure.
【０００５】封口体３は、図５に示すように蓋板４と、
蓋板４の中央に穿設された孔４ａにガスケット５を介し
て液密に嵌合装着され、下端が発電要素２の陽極集電体
が接続されるリード板７の一端と共に蓋板４にカシメ固
定され、上面が蓋板４の上面と略面一をなして裸出し、
中央に小孔６ａが穿設されたリベット６と、当該リベッ
ト６に載置され、外装缶１の各短側面１ｂ（図４）側に
臨む両側部に夫々設けられたフランジ８ａを介して溶着
固定され、各長側面１ａに臨む各側面８ｂの各下端に夫
々ガスの逃げ路となる切欠８ｃが設けられた陽極キャッ
プ８と、陽極キャップ８に収納されリベット６の孔６ａ
を閉塞する安全弁９等により構成されている。As shown in FIG. 5, the sealing body 3 includes a cover plate 4 and
Liquid-tightly fitted and mounted through a gasket 5 into a hole 4a formed in the center of the lid plate 4, and the lower end is attached to the lid plate 4 together with one end of a lead plate 7 to which the anode current collector of the power generating element 2 is connected. It is fixed by caulking, its upper surface is substantially flush with the upper surface of the lid plate 4, and is exposed barely.
Welding via a rivet 6 having a small hole 6a in the center and flanges 8a placed on the rivet 6 and provided on both sides facing the short side faces 1b (Fig. 4) of the outer can 1 respectively. Anode cap 8 fixed to each lower end of each side surface 8b facing each long side surface 1a, and a notch 8c serving as a gas escape path, and a hole 6a of a rivet 6 housed in the anode cap 8
It is constituted by a safety valve 9 that closes the valve.
【０００６】安全弁９は、何らかの原因により電池内圧
が異常上昇して所定圧を超えるとリベット６の孔６ａを
通して加わるガス圧により開弁し、外装缶１内のガスを
陽極キャップ８の切欠８ｃ、８ｃから外部に排出させ、
電池内圧を低下させる。ニッケル水素電池は、過充電時
に発生するガスを電池内部で完全に消費する構造とされ
ているが、万一の場合に備えて安全弁９が内蔵されてい
る。The safety valve 9 is opened by the gas pressure applied through the hole 6a of the rivet 6 when the internal pressure of the battery abnormally rises and exceeds a predetermined pressure for some reason, so that the gas in the outer can 1 is cut out 8c in the anode cap 8. 8c to the outside,
Lower the battery internal pressure. The nickel-hydrogen battery has a structure in which the gas generated during overcharging is completely consumed inside the battery, but a safety valve 9 is built-in in case of emergency.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、外装缶
１の開口端１ｃに封口体３の蓋板４を溶着する場合、外
装缶１の長側面１ａ側では蓋板４の溶接部が陽極キャッ
プ８の切欠８ｃに近くなるために、溶接による熱の影
響、例えば、レーザ溶接では輻射熱、反射熱、溶接部近
傍のガスケット５等の可燃物の溶融熱等が、陽極キャッ
プ８の切欠８ｃから当該陽極キャップ８内に入り込み、
ゴム系部材により形成された安全弁９の一部を溶かして
しまう。この結果、安全弁９の有効断面積が減少し、作
動すべき圧力（開弁圧）を保証し得なくなり、所定圧よ
りも低い圧力で作動してしまう虞れがある。このため、
通常使用時、特に、普通の充電時に安全弁９が開弁して
内部の電解液が漏出し、当該電池を組み込んだ機器を損
傷させる虞れがある。However, when the lid plate 4 of the sealing body 3 is welded to the opening end 1c of the outer can 1, the welded portion of the lid plate 4 on the long side surface 1a side of the outer can 1 has the anode cap 8 attached thereto. Since it is closer to the notch 8c of the anode cap 8, for example, the influence of heat due to welding, such as radiant heat in laser welding, reflected heat, melting heat of combustible material such as the gasket 5 near the welded portion, etc. Enter the cap 8,
Part of the safety valve 9 formed of a rubber member will be melted. As a result, the effective sectional area of the safety valve 9 is reduced, the pressure (valve opening pressure) to be operated cannot be guaranteed, and there is a possibility that the safety valve 9 may be operated at a pressure lower than a predetermined pressure. For this reason,
During normal use, especially during normal charging, the safety valve 9 may open and the electrolyte solution may leak out, damaging the device incorporating the battery.
【０００８】また、ゴム系の安全弁９が溶融する際に煤
等を含んだガスが発生し、陽極キャップ８の切欠８ｃか
ら外部に排出される。この煤を含んだガスにより、特
に、レーザ溶接の際にレーザ光Ｌの全部又は一部が遮ら
れて集光が均一に行われなくなり、この結果、外装缶１
の長側面１ａ側の溶接ビードがばらつき、場合によって
はビードが出来ずに溶接不良となり、外装缶１と封口体
３との嵌合部に隙間が発生し、内部の電解液の漏出の原
因となる等の問題がある。Further, when the rubber type safety valve 9 is melted, a gas containing soot is generated and discharged from the cutout 8c of the anode cap 8 to the outside. The soot-containing gas blocks all or part of the laser light L particularly during laser welding, so that the light cannot be collected uniformly. As a result, the outer can 1
The welding bead on the side of the long side surface 1a varies, and in some cases the bead is not formed, resulting in poor welding, and a gap is generated in the fitting portion between the outer can 1 and the sealing body 3, which may cause leakage of the electrolytic solution inside. There is a problem such as becoming.
【０００９】本発明は上述の点に鑑みてなされたもの
で、外装缶と封口体との溶接の際にキャップに内蔵され
る安全弁を保護し、且つ溶接不良を防止するようにした
角形密閉電池を提供することを目的とする。The present invention has been made in view of the above points, and protects a safety valve built in a cap when welding an outer can and a sealing body and prevents defective welding. The purpose is to provide.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
に本発明によれば、開口端が矩形状をなす角形の外装缶
の前記開口端に嵌合装着され全周に亘り溶着される封口
体の上面中央に配置され、内圧が異常上昇したときに開
弁する安全弁を内蔵し、且つ前記内圧を外部に排出させ
るガスの逃げ路が形成されたキャップを備えた角形密閉
電池において、前記ガスの逃げ路は、前記キャップの前
記外装缶の短側面側に臨む側面に設けられた構成とした
ものである。In order to achieve the above object, according to the present invention, a sealing member is fitted and attached to the opening end of a rectangular outer can having a rectangular opening end and welded over the entire circumference. In the rectangular sealed battery, which is arranged in the center of the upper surface of the body, has a built-in safety valve that opens when the internal pressure rises abnormally, and has a cap formed with a gas escape path for discharging the internal pressure to the outside, The escape passage is provided on the side surface of the cap facing the short side surface side of the outer can.
【００１１】[0011]
【作用】外装缶の矩形状の開口端に嵌合装着した封口体
を全周に亘り溶着する場合、外装缶の長側面に臨む溶接
部に最も近いキャップの側面にはガスの逃げ道が開口さ
れていないために、キャップに内蔵されている安全弁が
溶接熱から保護される。安全弁が溶融熱から保護される
ことにより溶融が防止され、煤等を含んだガスの発生が
なくなり、封口溶接が良好に行なわれる。この結果、安
全弁の作動圧の安定した、且つ封口溶接部の信頼性の高
い密閉電池の製造が可能となる。When the sealing body fitted and attached to the rectangular opening end of the outer can is welded over the entire circumference, a gas escape path is opened on the side surface of the cap closest to the welding portion facing the long side surface of the outer can. Since it does not, the safety valve built into the cap is protected from welding heat. Since the safety valve is protected from the heat of fusion, the fusion is prevented, the generation of gas containing soot and the like is eliminated, and the sealing welding is performed well. As a result, it is possible to manufacture a sealed battery in which the working pressure of the safety valve is stable and the sealing welded portion is highly reliable.
【００１２】[0012]
【実施例】以下本発明の一実施例を添付図面に基づいて
詳述する。尚、図４と同一部材には同一符号を付してあ
る。図１は、本発明を適用した角形密閉電池の上部斜視
図で、封口体３は、外装缶１の開口端１ｃに嵌合装着さ
れており、当該封口体３の中央にはガスケット５を介し
て陽極キャップ１０が設けられている。陽極キャップ１
０は、外装缶１の各短側面１ｂに臨む両側にフランジ１
０ａ、１０ａが形成されており、これらのフランジ１０
ａ、１０ａと両側面１０ｂ、１０ｂとの連設部の略中央
には孔１０ｃ、１０ｃが穿設されている。これらの孔１
０ｃは、ガスの逃げ路とされる。そして、陽極キャップ
１０は、外装缶１の各長側面１ａに臨む各側面１０ｄが
完全に閉塞されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. The same members as those in FIG. 4 are designated by the same reference numerals. FIG. 1 is a top perspective view of a prismatic sealed battery to which the present invention is applied, in which a sealing body 3 is fitted and attached to an open end 1c of an outer can 1, and a gasket 5 is inserted in the center of the sealing body 3 with a gasket 5 interposed therebetween. An anode cap 10 is provided. Anode cap 1
0 is a flange 1 on each side facing each short side 1b of the outer can 1.
0a, 10a are formed, and these flanges 10
Holes 10c and 10c are bored at approximately the center of the connecting portion between a and 10a and both side surfaces 10b and 10b. These holes 1
0c is a gas escape route. Then, in the anode cap 10, each side surface 10d facing each long side surface 1a of the outer can 1 is completely closed.
【００１３】この陽極キャップ１０は、図５と同様に蓋
板４の孔にガスケット５を介して嵌合装着されたリベッ
トの上面に載置され、両側のフランジ１０ａ、１０ａが
溶着固定されて電気的及び機械的に接続されている。そ
して、陽極キャップ１０にはゴム系の部材により形成さ
れた安全弁（図示せず）が内蔵されており、前記リベッ
トのガス抜き用の孔の開口端を閉塞している。This anode cap 10 is placed on the upper surface of the rivet fitted and fitted in the hole of the cover plate 4 through the gasket 5 as in FIG. 5, and the flanges 10a and 10a on both sides are welded and fixed to the anode cap 10 for electrical connection. And mechanically connected. A safety valve (not shown) formed of a rubber-based member is built in the anode cap 10 to close the open end of the gas vent hole of the rivet.
【００１４】以下に作用を説明する。外装缶１の開口端
１ｃに封口体３を嵌合装着してレーザ溶接する場合、外
装缶１の長側面１ａ、１ａに臨む陽極キャップ１０の側
面１０ｄ、１０ｄが閉塞されているために、蓋板４の溶
接部に近くても内蔵せる安全弁は、溶接の熱の影響を受
けることがない。一方、陽極キャップ１０の孔１０ｃ、
１０ｃは、外装缶１の短側面１ｂ、１ｂ側に臨んで開口
されている。しかしながら、短側面１ｂ側の開口端から
キャップ１０の孔１０ｃまでの距離は遠く、このため開
口端と蓋板４とをレーザ溶接する際に、輻射熱、反射
熱、溶接部近傍のガスケット５等の可燃物の溶融熱等が
孔１０ｃから陽極キャップ１０内に入り込むことはな
い。これにより封口体３の溶接時に陽極キャップ１０に
内蔵されている前記安全弁が保護される。The operation will be described below. When the sealing body 3 is fitted and attached to the opening end 1c of the outer can 1, and laser welding is performed, since the side faces 10d and 10d of the anode cap 10 facing the long side faces 1a and 1a of the outer can 1 are closed, the lid is closed. The safety valve that can be installed even near the welded portion of the plate 4 is not affected by the heat of welding. On the other hand, the hole 10c of the anode cap 10,
10 c is opened to face the short side faces 1 b, 1 b of the outer can 1. However, the distance from the opening end on the side of the short side surface 1b to the hole 10c of the cap 10 is long, and therefore, when the opening end and the cover plate 4 are laser-welded, radiant heat, reflected heat, gasket 5 in the vicinity of the welded portion, etc. The heat of fusion of combustible material does not enter the anode cap 10 through the hole 10c. This protects the safety valve built in the anode cap 10 when the sealing body 3 is welded.
【００１５】また、封口体３の溶接時に前記安全弁が溶
融することがないために当該安全弁から煤を含んだガス
が発生することがなく、レーザ溶接時にレーザ光線が遮
断されることが防止される。この結果、封口体３は、外
装缶１に全周に亘り良好に溶接され、溶接部から電解液
が漏出することがない。そして、安全弁は、作動圧の安
定した信頼性の高いものとなる。Further, since the safety valve does not melt when the sealing body 3 is welded, soot-containing gas is not generated from the safety valve, and the laser beam is prevented from being interrupted during laser welding. . As a result, the sealing body 3 is well welded to the outer can 1 over the entire circumference thereof, and the electrolytic solution does not leak from the welded portion. Then, the safety valve has stable and reliable working pressure.
【００１６】図２は、陽極キャップの第２の実施例を示
し、各フランジ１０ａの略中央に各一端が夫々各側面１
０ｂの下端において陽極キャップ１０内に臨んで開口
し、各他端が夫々各フランジ１０ａの先端に開口する通
路１０ｅ、１０ｅを一体に形成し、陽極キャップ１０の
内部と外部とを連通させてガスの逃げ路としたものであ
る。通路１０ｅ、１０ｅは、長く、しかも、外装缶１の
短側面側に臨んで開口しているために、封口体３の溶接
時に陽極キャップ１０内の安全弁を保護することができ
る。FIG. 2 shows a second embodiment of the anode cap, one end of each of the flanges 10a being substantially at the center of each side face 1.
The passages 10e, 10e, which are open at the lower end of the anode 0b so as to face the inside of the anode cap 10 and whose other ends are respectively opened at the tips of the respective flanges 10a, are integrally formed so that the inside and the outside of the anode cap 10 communicate with each other. It is a way out of. Since the passages 10e and 10e are long and open so as to face the short side surface side of the outer can 1, the safety valve in the anode cap 10 can be protected when the sealing body 3 is welded.
【００１７】また、図３は陽極キャップの第３の実施例
を示し、図２に示す第２の実施例の陽極キャップの通路
１０ｅ、１０ｅを途中から略直角に曲げ、フランジ１０
ａ、１０ａの略中央に外装缶１の長側面側に臨ませて開
口させたものである。このように通路１０ｆ、１０ｆが
長く、しかも、途中で曲がっているために図２に示す陽
極キャップと同様に溶接時に安全弁を保護することがで
きる。FIG. 3 shows a third embodiment of the anode cap, in which the passages 10e, 10e of the anode cap of the second embodiment shown in FIG.
The outer can 1 is opened so as to face the long side surface of the outer can 1 at approximately the center. As described above, since the passages 10f and 10f are long and bent in the middle, the safety valve can be protected during welding similarly to the anode cap shown in FIG.
【００１８】[0018]
【発明の効果】以上説明したように本発明によれば、外
装缶への封口体の溶接時にキャップに内蔵された安全弁
を保護することができると共に、良好な封口溶接を行な
うことができ、この結果、安全弁の作動圧の安定した、
且つ封口溶接部の信頼性の高い角形密閉電池を製造する
ことが可能となるという効果がある。As described above, according to the present invention, it is possible to protect the safety valve built in the cap when welding the sealing body to the outer can and to perform good sealing welding. As a result, the working pressure of the safety valve is stable,
Moreover, there is an effect that it is possible to manufacture a prismatic sealed battery with a highly reliable sealing weld.
【図１】本発明に係る角形密閉電池の陽極キャップを含
む上部斜視図である。FIG. 1 is a top perspective view including an anode cap of a prismatic sealed battery according to the present invention.
【図２】図１の陽極キャップの第２の実施例を示す斜視
図である。FIG. 2 is a perspective view showing a second embodiment of the anode cap of FIG.
【図３】図１の陽極キャップの第３の実施例を示す斜視
図である。FIG. 3 is a perspective view showing a third embodiment of the anode cap of FIG.
【図４】従来の角形密閉電池の陽極キャップを含む上部
斜視図である。FIG. 4 is a top perspective view of a conventional prismatic sealed battery including an anode cap.
【図５】図４の矢線Ｖ−Ｖに沿う断面図である。5 is a cross-sectional view taken along the line VV of FIG.
１ 外装缶 ２ 発電要素 ３ 封口体 ４ 蓋板 ５ ガスケット １０ 陽極キャップ １０ｃ ガス抜き孔 １０ｅ、１０ｆ ガス抜き通路 DESCRIPTION OF SYMBOLS 1 outer can 2 power generation element 3 sealing body 4 lid plate 5 gasket 10 anode cap 10c gas vent hole 10e, 10f gas vent passage
Claims (3)
記開口端に嵌合装着され全周に亘り溶着される封口体の
上面中央に配置され、内圧が異常上昇したときに開弁す
る安全弁を内蔵し、且つ前記内圧を外部に排出させるガ
スの逃げ路が形成されたキャップを備えた角形密閉電池
において、 前記ガスの逃げ路は、前記キャップの前記外装缶の短側
面側に臨む側面に設けられていることを特徴とする角形
密閉電池。1. A valve which is arranged at the center of the upper surface of a sealing body which is fitted and attached to the opening end of a rectangular outer can whose opening end is rectangular and welded over the entire circumference, and when the internal pressure rises abnormally. In a prismatic sealed battery having a cap with a safety valve built in and a gas escape passage for discharging the internal pressure to the outside, the gas escape passage faces the short side surface side of the outer can of the cap. A prismatic sealed battery, which is provided on a side surface.
外装缶の短側面側に臨む側面の下端に設けられた孔であ
ることを特徴とする請求項１記載の角形密閉電池。2. The prismatic sealed battery according to claim 1, wherein the gas escape passage is a hole provided at a lower end of a side surface of the cap facing the short side surface of the outer can.
外装缶の両短側面側に設けられ当該キャップを前記封口
体に溶着するフランジに膨出して形成され、一端が当該
フランジから外部に開口し、他端が前記キャップ内に開
口する通路である請求項１記載の角形密閉電池。3. The gas escape passage is formed by bulging on a flange provided on both short side surfaces of the outer can of the cap and welding the cap to the sealing body, and one end of the flange extends outward from the flange. The prismatic sealed battery according to claim 1, wherein the prismatic sealed battery is a passage that is open and the other end is opened in the cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5324010A JP3069760B2 (en) | 1993-12-22 | 1993-12-22 | Square sealed battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5324010A JP3069760B2 (en) | 1993-12-22 | 1993-12-22 | Square sealed battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07183017A true JPH07183017A (en) | 1995-07-21 |
| JP3069760B2 JP3069760B2 (en) | 2000-07-24 |
Family
ID=18161129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5324010A Expired - Lifetime JP3069760B2 (en) | 1993-12-22 | 1993-12-22 | Square sealed battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3069760B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101310477B1 (en) * | 2008-07-02 | 2013-09-24 | 주식회사 엘지화학 | Top cap of cap assembly for lithium secondary battery characterized by comprising micro channels for gas vent and Cap assembly having the same |
| CN106981596A (en) * | 2015-10-02 | 2017-07-25 | 三星Sdi株式会社 | Secondary cell |
-
1993
- 1993-12-22 JP JP5324010A patent/JP3069760B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101310477B1 (en) * | 2008-07-02 | 2013-09-24 | 주식회사 엘지화학 | Top cap of cap assembly for lithium secondary battery characterized by comprising micro channels for gas vent and Cap assembly having the same |
| CN106981596A (en) * | 2015-10-02 | 2017-07-25 | 三星Sdi株式会社 | Secondary cell |
| US10115946B2 (en) | 2015-10-02 | 2018-10-30 | Samsung Sdi Co., Ltd. | Secondary battery |
| CN106981596B (en) * | 2015-10-02 | 2021-10-08 | 三星Sdi株式会社 | Secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3069760B2 (en) | 2000-07-24 |
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