JP3468538B2 - Organic electrolyte battery - Google Patents
Organic electrolyte batteryInfo
- Publication number
- JP3468538B2 JP3468538B2 JP32872692A JP32872692A JP3468538B2 JP 3468538 B2 JP3468538 B2 JP 3468538B2 JP 32872692 A JP32872692 A JP 32872692A JP 32872692 A JP32872692 A JP 32872692A JP 3468538 B2 JP3468538 B2 JP 3468538B2
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- current collector
- battery
- organic electrolyte
- electrode current
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y02E60/12—
Landscapes
- Cell Electrode Carriers And Collectors (AREA)
- Primary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、有機電解液電池に係わ
り、さらに詳しくはその正極集電体の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic electrolyte battery, and more particularly to improvement of a positive electrode current collector thereof.
【０００２】[0002]
【従来の技術】二酸化マンガン−リチウム電池に代表さ
れる有機電解液電池は、高電圧、高エネルギー密度であ
ることから、年々その需要が増加しつつある。そして、
電池が大型化されるに伴ってより高い安全性が必要とさ
れるようになってきた。2. Description of the Related Art Demand for organic electrolyte batteries represented by manganese dioxide-lithium batteries is increasing year by year because of their high voltage and high energy density. And
As batteries have become larger, higher safety has been required.
【０００３】ところで、現在の二酸化マンガン−リチウ
ム系の筒形有機電解液電池では、ほとんどの場合、正極
集電体にステンレス鋼を用いている。しかし、このよう
な正極集電体にステンレス鋼を用いた電池では、過放電
されて電池電圧が０Ｖ以下になると、正極にリチウムが
電着し、このリチウムが成長して負極に達し、内部短絡
を引き起こし、さらには急激な発熱を引き起こすという
問題があった。By the way, in most current manganese dioxide-lithium tubular organic electrolyte batteries, stainless steel is used for the positive electrode current collector. However, in a battery using stainless steel for such a positive electrode current collector, when the battery voltage is over-discharged to 0 V or less, lithium is electrodeposited on the positive electrode, the lithium grows and reaches the negative electrode, and an internal short circuit occurs. There is a problem that it causes a sudden heat generation.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記従来の
有機電解液電池が持っていた過放電時における問題点を
解決し、正極集電体を改良して、安全性の優れた有機電
解液電池を提供することを目的とする。DISCLOSURE OF THE INVENTION The present invention solves the problems of the above-mentioned conventional organic electrolyte batteries during overdischarge, improves the positive electrode current collector, and improves the safety of organic electrolysis. An object is to provide a liquid battery.
【０００５】[0005]
【課題を解決するための手段】本発明は、有機電解液電
池の正極集電体にアルミニウムを用い、該集電体が封口
時に端子板が横方向にずらされたのち封口されることに
より引張方向または横方向の応力がかけられており、か
つ、有機電解液の電解質としてＬｉＰＦ6 を用い、上記
正極集電体の引張方向または横方向の応力を負荷した部
分が有機電解液で濡れていることにより、過放電時に正
極の集電がとれなくなって電流が遮断されるようにする
ことによって、電池の安全性を高めたものである。According to the present invention, aluminum is used as a positive electrode current collector of an organic electrolyte battery, and the current collector is stretched by sealing after the terminal plate is laterally displaced when sealing. Direction or lateral stress is applied, and LiPF 6 is used as the electrolyte of the organic electrolyte solution, and the portion of the positive electrode current collector to which the tensile or lateral stress is applied is wet with the organic electrolyte solution. As a result, the current of the positive electrode is cut off when the positive electrode is unable to collect the current at the time of over-discharging, thereby improving the safety of the battery.
【０００６】本発明において、アルミニウムを正極集電
体に用いるのは、電池の異常放電時に正極の電位がリチ
ウム基準で３５０ｍＶ以下になった場合、正極集電体が
電池内のアルカリ金属またはアルカリ土類金属と合金化
してボロボロになり、正極の集電がとれなくなって、電
流が遮断され、電池反応がそれ以上進行しなくなって電
池の異常発熱を防止できるようになるからである。In the present invention, aluminum is used for the positive electrode current collector because the positive electrode current collector is an alkali metal or alkaline earth in the battery when the potential of the positive electrode becomes 350 mV or less based on lithium during abnormal discharge of the battery. This is because it alloys with a metal to form a tatter, and the current collection of the positive electrode cannot be obtained, the current is cut off, and the battery reaction does not proceed any more to prevent abnormal heat generation of the battery.
【０００７】しかし、これも構造上の設計を適正にして
おかないと、充分な効果が得られない。そこで、充分な
効果が得られるようにするためには、次に示す事項が必
要である。However, also in this case, a sufficient effect cannot be obtained without proper structural design. Therefore, the following items are necessary in order to obtain a sufficient effect.
【０００８】まず、第１に必要なことは、電流を遮断す
る場所の設定である。この電流を遮断するのに最も適し
ているのは、正極集電体のタブ部分（正極と正極端子部
とを連結するリード部分）であり、この部分が合金化す
ると、この部分だけがボロボロになって脱落することに
より正極の集電がとれなくなって電流が遮断される。First of all, what is needed first is to set the place where the current is cut off. The most suitable for interrupting this current is the tab portion of the positive electrode current collector (the lead portion that connects the positive electrode and the positive electrode terminal portion). If this portion is alloyed, only this portion will be broken. Then, the current is cut off because the current cannot be collected from the positive electrode.
【０００９】第２に必要なことは、電流を遮断すべき場
所が電解液で漏れていることである。すなわち、アルミ
ニウムの電気化学的な合金化は電解液のあるところでし
か起こらないからである。したがって、電流を遮断する
場所まで電解液を満たすか、あるいは電解液浸透性のも
ので覆い、電解液で濡れている状態に保つことが必要で
ある。The second requirement is that the place where the current should be cut off is leaking with the electrolyte. That is, the electrochemical alloying of aluminum occurs only in the presence of the electrolytic solution. Therefore, it is necessary to fill the electrolytic solution up to the place where the electric current is cut off, or to cover the area with the electrolytic solution permeable material and keep it wet with the electrolytic solution.
【００１０】第３に必要なことは、電流を遮断すべき部
分に引張方向または横方向の応力がかかっていることで
ある。もし、仮に縮む方向への応力がかかっているとす
ると、正極集電体が合金化してある程度脱落しても、再
度くっついてしまうからである。Third, it is necessary to apply a tensile or transverse stress to the portion where the current should be cut off. If stress is applied in the direction of contraction, the positive electrode current collector will re-stick even if it is alloyed and drops to some extent.
【００１１】しかし、横方向への応力がかかっていれ
ば、一部でもボロボロになって脱落すると、残った部分
がそれぞれ横方向に離れるため、確実に電流を遮断でき
る。そして、引張方向への応力がかかっていれば、横方
向への応力がかかっている場合よりも、さらに確実に電
流が遮断できる。However, if a stress is applied in the lateral direction, even if a part of it falls apart and falls off, the remaining parts are separated in the lateral direction, so that the current can be cut off without fail. When the stress is applied in the tensile direction, the current can be cut off more reliably than when the stress is applied in the lateral direction.
【００１２】また、望ましい条件としては、電流を遮断
すべき部分が他の部分より細くなっていることが挙げら
れる。これは、所望部分以外のところで正極集電体が切
断されると、その部分に縮み応力がかかっていたりする
場合に、充分な効果が得られないことが生じるおそれが
あるからである。A desirable condition is that the portion where the current should be cut off is thinner than the other portions. This is because if the positive electrode current collector is cut at a portion other than the desired portion, a sufficient effect may not be obtained when the portion is subjected to shrinkage stress.
【００１３】本発明において、電解液の調製にあたり使
用できる有機溶媒としては、たとえばエチレンカーボネ
ート、プロピレンカーボネート、ブチレンカーボネー
ト、１，２−ジメトキシエタン、１，２−ジエトキシエ
タン、ジメトキシメタン、ジメトキシプロパン、γ−ブ
チロラクトン、γ−バレロラクトン、テトラヒドロフラ
ン、２−メチルテトラヒドロフラン、１，３−ジオキソ
ラン、４−メチル−１，３−ジオキソランなどが挙げら
れる。In the present invention, examples of the organic solvent which can be used for preparing the electrolytic solution include ethylene carbonate, propylene carbonate, butylene carbonate, 1,2-dimethoxyethane, 1,2-diethoxyethane, dimethoxymethane and dimethoxypropane. γ-butyrolactone, γ-valerolactone, tetrahydrofuran, 2-methyltetrahydrofuran, 1,3-dioxolane, 4-methyl-1,3-dioxolane and the like can be mentioned.
【００１４】電解質としては、ＬｉＰＦ6 を用いること
ができ、電解液の調製にあたって、この電解質は上記有
機溶媒に０．１〜２．０ｍｏｌ／ｌ溶解させるのが適し
ている。LiPF 6 can be used as the electrolyte, and it is suitable that 0.1 to 2.0 mol / l of this electrolyte is dissolved in the above organic solvent in the preparation of the electrolytic solution.
【００１５】正極活物質としては、二酸化マンガンなど
のマンガン酸化物、五酸化バナジウムなどのバナジウム
酸化物、Ｃｒ3 Ｏ8 などのクロム酸化物などの金属酸化
物、二硫化チタン、二硫化モリブデンなどの金属硫化
物、さらにはポリアニリン、ポリピロールなどの導電性
高分子材料を用いることができる。Examples of the positive electrode active material include manganese oxides such as manganese dioxide, vanadium oxides such as vanadium pentoxide, metal oxides such as chromium oxides such as Cr 3 O 8 , titanium disulfide and molybdenum disulfide. It is possible to use metal sulfides, and also conductive polymer materials such as polyaniline and polypyrrole.
【００１６】負極活物質としては、リチウム、たとえば
リチウム−アルミニウム合金などのリチウム合金、たと
えばリチウム−カーボンなどのリチウム化合物が用いら
れる。また、リチウム以外のアルカリ金属、アルカリ土
類金属、それらの合金、さらにはそれらを含む化合物も
用いることができる。As the negative electrode active material, lithium, a lithium alloy such as a lithium-aluminum alloy, or a lithium compound such as lithium-carbon is used. Further, alkali metals other than lithium, alkaline earth metals, alloys thereof, and compounds containing them can also be used.
【００１７】[0017]
【実施例】実施例１
電解液として０．６ｍｏｌ／ｌＬｉＰＦ6 ／ＰＣ：ＤＭ
Ｅ（体積比１：２）〔プロピレンカーボネート（ＰＣ）
と１，２−ジメトキシエタン（ＤＭＥ）との体積比１：
２の混合溶媒にＬｉＰＦ6 を０．６ｍｏｌ／ｌ溶解させ
たもの〕を用い、正極活物質として二酸化マンガン（Ｍ
ｎＯ2 ）を用い、かつ、正極集電体にアルミニウム（Ａ
ｌ）、負極にリチウム（Ｌｉ）、負極集電体にニッケル
（Ｎｉ）をそれぞれ用いて、図１に示す構造の筒形有機
電解液電池を作製した。EXAMPLES Example 1 0.6 mol / l LiPF 6 / PC: DM as electrolyte
E (volume ratio 1: 2) [propylene carbonate (PC)
Volume ratio of 1,2-dimethoxyethane (DME) to 1:
LiPF 6 dissolved in a mixed solvent of 0.6 mol / l] was used as a positive electrode active material and manganese dioxide (M
nO 2 ) and aluminum (A
1), lithium (Li) was used for the negative electrode, and nickel (Ni) was used for the negative electrode current collector to prepare a tubular organic electrolyte battery having the structure shown in FIG.
【００１８】ただし、上記の正極集電体には、後に詳述
するように電解液への浸漬部分に特定の態様で引張方向
への応力をかけている。However, in the positive electrode current collector, stress is applied in the tensile direction in a specific manner to the portion immersed in the electrolytic solution, as will be described later.
【００１９】まず、電池全体について図１に基づき説明
すると、１は前記の二酸化マンガンを正極活物質とする
正極合剤を成形した正極であり、その成形にあたっては
アルミニウム製の正極集電体が芯材として使用されてい
るが、この図１では繁雑化を避けるため、そのタブ部分
のみしか図示していない。２はリチウムからなる負極で
あり、この負極２の作製にあたってもニッケル製網が集
電作用を兼ねた支持体として一部に使用されているが、
この図１では繁雑化を避けるためニッケル網も一部しか
図示していない。３は微孔性ポリプロピレンフィルムか
らなるセパレータであり、４は上記の有機電解液（ただ
し、前記したように、電解液と略す）である。First, the whole battery will be described with reference to FIG. 1. Reference numeral 1 is a positive electrode obtained by molding a positive electrode mixture containing manganese dioxide as a positive electrode active material, and an aluminum positive electrode current collector is used for molding the positive electrode. Although used as a material, only the tab portion is shown in FIG. 1 in order to avoid complication. Reference numeral 2 denotes a negative electrode made of lithium, and a nickel net is also used as a part of the support also having a current collecting function in the production of the negative electrode 2.
In FIG. 1, only a part of the nickel net is shown in order to avoid complication. 3 is a separator made of a microporous polypropylene film, and 4 is the above-mentioned organic electrolytic solution (however, abbreviated as electrolytic solution as described above).
【００２０】上記正極１、負極２、セパレータ３につい
て詳しく説明すると、次の通りである。The positive electrode 1, the negative electrode 2 and the separator 3 will be described in detail as follows.
【００２１】正極は４５０℃で熱処理した二酸化マンガ
ン９０重量部とカーボンブラック５重量部とポリテトラ
フルオロエチレン５重量部とからなる正極合剤を、厚さ
０．４ｍｍ、幅３０ｍｍ、長さ２００ｍｍのシート状に
成形することによって作製した。そして、成形後、２５
０℃で９時間乾燥した後、乾燥雰囲気中で室温まで冷却
した。The positive electrode was made of a positive electrode mixture containing 90 parts by weight of manganese dioxide heat-treated at 450 ° C., 5 parts by weight of carbon black and 5 parts by weight of polytetrafluoroethylene and having a thickness of 0.4 mm, a width of 30 mm and a length of 200 mm. It was produced by molding into a sheet. And after molding, 25
After drying at 0 ° C. for 9 hours, it was cooled to room temperature in a dry atmosphere.
【００２２】負極２は厚さ０．１８ｍｍ、幅３０ｍｍ、
長さ１９０ｍｍのリチウムシートからなり、前記シート
状の正極１は厚さ２５μｍの微孔性ポリプロピレンフィ
ルムからなるセパレータ３で包み、このシート状の負極
２に重ね合わせ渦巻状に巻回して、渦巻状電極体とした
後、有底円筒状の電池ケース５内に装填している。The negative electrode 2 has a thickness of 0.18 mm and a width of 30 mm,
The sheet-shaped positive electrode 1 is made of a lithium sheet having a length of 190 mm, and the sheet-shaped positive electrode 1 is wrapped with a separator 3 made of a microporous polypropylene film having a thickness of 25 μm, superposed on the sheet-shaped negative electrode 2, and spirally wound to form a spiral shape. After forming the electrode body, it is loaded in a cylindrical battery case 5 having a bottom.
【００２３】電池ケース５はステンレス鋼製で、この電
池ケース５は負極端子を兼ねている。電池ケース５の底
部にはポリテトラフルオロエチレンシートからなる絶縁
体６が設置され、電池ケース５の内周部にもポリテトラ
フルオロエチレンシートからなる絶縁体７が設置されて
いて、前記正極１、負極２およびセパレータ３からなる
渦巻状電極体や、電解液４などは、この電池ケース５内
に収容されている。The battery case 5 is made of stainless steel, and the battery case 5 also serves as a negative electrode terminal. An insulator 6 made of a polytetrafluoroethylene sheet is installed on the bottom of the battery case 5, and an insulator 7 made of a polytetrafluoroethylene sheet is also installed on the inner peripheral part of the battery case 5. The spiral electrode body including the negative electrode 2 and the separator 3, the electrolytic solution 4, and the like are contained in the battery case 5.
【００２４】８はステンレス鋼製の封口板であり、この
封口板８の中央部にはガス通気孔８ａが設けられてい
る。９はポリプロピレン製の環状パッキング、１０はチ
タン製の可撓性薄板で、１１は環状のポリプロピレン製
の熱変形部材である。Reference numeral 8 is a stainless steel sealing plate, and a gas vent hole 8a is provided in the central portion of the sealing plate 8. Reference numeral 9 is a polypropylene-made annular packing, 10 is a flexible thin plate made of titanium, and 11 is an annular heat-deformable member made of polypropylene.
【００２５】上記の熱変形部材１１は温度によって変形
することにより、可撓性薄板１０の破壊圧力を変える作
用をする。The above-mentioned thermal deformation member 11 acts to change the breaking pressure of the flexible thin plate 10 by being deformed by the temperature.
【００２６】１２はニッケルメッキを施した圧延鋼製の
端子板であり、この端子板１２には切刃１２ａとガス排
出孔１２ｂとが設けられていて、電池内部にガスが発生
して、電池の内部圧力が上昇し、その内圧上昇によって
可撓性薄板１０が変形したときに上記切刃１２ａによっ
て可撓性薄板１０を破壊し、電池内部のガスを上記ガス
排出孔１２ｂから電池外部に排出して、電池の破裂が防
止できるように設計されてる。Reference numeral 12 is a nickel-plated terminal plate made of rolled steel. The terminal plate 12 is provided with a cutting edge 12a and a gas discharge hole 12b. Internal pressure rises, and when the flexible thin plate 10 is deformed due to the increase in the internal pressure, the cutting blade 12a destroys the flexible thin plate 10 and discharges gas inside the battery from the gas discharge hole 12b to the outside of the battery. And it is designed to prevent the battery from bursting.
【００２７】１３は絶縁パッキングで、１４はアルミニ
ウム製の正極集電体であり、そのタブ部分が図示されて
いて、この正極集電体１４は正極１と封口板８とを電気
的に接続しており、端子板１２は封口板８との接触によ
り正極端子として作用する。また、１５は負極２と電池
ケース５とを電気的に接続するニッケル製の負極集電体
である。Reference numeral 13 is an insulating packing, 14 is a positive electrode current collector made of aluminum, and its tab portion is shown. The positive electrode current collector 14 electrically connects the positive electrode 1 and the sealing plate 8. Therefore, the terminal plate 12 acts as a positive electrode terminal by contact with the sealing plate 8. Reference numeral 15 denotes a nickel negative electrode current collector that electrically connects the negative electrode 2 and the battery case 5.
【００２８】そして、上記正極集電体１４の電解液４へ
の浸漬部分には、次に示すように引張方向への応力が負
荷されている。A stress in the tensile direction is applied to the portion of the positive electrode current collector 14 immersed in the electrolytic solution 4, as shown below.
【００２９】すなわち、封口にあたり端子板１２をあら
かじめＡ方向にずらしておき、この端子板１２を横方向
にずらして所定の位置におさめて封口することによっ
て、正極集電体１４のＣ点にはＢ方向への応力（図では
横方向の応力に見えるが、正極集電体１４に対しては引
張方向の応力になる）がかけられている。また、その正
極集電体１４のＣ点は、図２に示すように、他の部分よ
り細くされている。That is, when the terminal plate 12 is displaced in the A direction in advance for sealing, and the terminal plate 12 is laterally displaced and held at a predetermined position for sealing, the positive electrode current collector 14 has a point C. A stress in the B direction (which looks like a lateral stress in the figure, but a tensile stress on the positive electrode current collector 14) is applied. Further, the point C of the positive electrode current collector 14 is thinner than the other portions, as shown in FIG.
【００３０】比較例１
正極集電体にステンレス鋼を用い、かつ正極集電体の一
部を細くしたり応力をかけることなく、それ以外は実施
例１と同様にして筒形有機電解液電池を作製した。Comparative Example 1 A cylindrical organic electrolyte battery was used in the same manner as in Example 1 except that stainless steel was used for the positive electrode current collector, and part of the positive electrode current collector was not thinned or stressed. Was produced.
【００３１】上記実施例１および比較例１の電池をそれ
ぞれ１０個ずつ作製し、それらの電池を１０Ａで放電
し、−３Ｖに達した後は−３Ｖ定電圧で過放電実験を行
った。Ten batteries of each of the above-mentioned Example 1 and Comparative Example 1 were prepared, and these batteries were discharged at 10 A, and after reaching -3 V, an over-discharge experiment was conducted at a constant voltage of -3 V.
【００３２】その結果、実施例１の電池は、いずれも過
放電途中で電流が遮断されて、電池表面が１５０℃以上
に異常発熱したり破損するものがなかったのに対し、比
較例１の電池は、途中で電流が遮断されることなく過放
電が続き、電池表面が１５０℃以上に異常発熱したり破
損の起きたものが２個あった。As a result, in all the batteries of Example 1, the current was interrupted during overdischarging, and the battery surface did not abnormally generate heat at 150 ° C. or higher or was damaged. There were two batteries that were over-discharged without interrupting the current in the middle and abnormally generated heat on the battery surface at 150 ° C. or higher or were damaged.
【００３３】なお、正極集電体１４のタブ部分の細くな
った部位に圧縮方向への応力を負荷して同様の試験を行
ったが、このように圧縮方向の応力がかかっている場合
は、電流の遮断が不充分である場合があり、確実性の高
い機能は得られなかった。A similar test was carried out by applying a stress in the compression direction to the narrowed portion of the tab portion of the positive electrode current collector 14, and when such a stress in the compression direction was applied, In some cases, the cutoff of the current was insufficient, and a highly reliable function was not obtained.
【００３４】[0034]
【発明の効果】以上説明したように、本発明では、有機
電解液電池の正極集電体にアルミニウムを用い、該集電
体が封口時に端子板が横方向にずらされたのち封口され
ることにより引張方向または横方向の応力がかけられて
おり、かつ有機電解液の電解質としてＬｉＰＦ6 を用
い、上記正極集電体の引張方向または横方向の応力を負
荷した部分が有機電解液で濡れていることによって、電
池の過放電時に電流を遮断させ、電池の安全性を高める
ことができた。As described above, in the present invention, aluminum is used for the positive electrode current collector of the organic electrolyte battery, and the current collector is sealed after the terminal plate is laterally displaced when sealing. Stress is applied in the tensile direction or the lateral direction by LiPF 6, and LiPF 6 is used as the electrolyte of the organic electrolyte solution, and the portion of the positive electrode current collector to which the stress in the tensile direction or the lateral direction is applied is wet with the organic electrolyte solution. By doing so, the current was cut off when the battery was over-discharged, and the safety of the battery could be improved.
【図１】本発明の有機電解液電池の一実施例を模式的に
示す断面図である。FIG. 1 is a sectional view schematically showing an example of an organic electrolyte battery of the present invention.
【図２】図１に示す電池の正極集電体の応力をかけた部
分を拡大して示す図である。FIG. 2 is an enlarged view showing a stressed portion of a positive electrode current collector of the battery shown in FIG.
１ 正極 ２ 負極 ３ セパレータ ４ 有機電解液 １４ 正極集電体 1 positive electrode 2 Negative electrode 3 separator 4 organic electrolyte 14 Positive electrode current collector
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−47369（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 6/16 H01M 4/64 - 4/84 H01M 2/34 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-5-47369 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) H01M 6/16 H01M 4/64-4 / 84 H01M 2/34
Claims (3)
（４）を発電要素とする有機電解液電池において、正極
集電体（１４）にアルミニウムを用い、該集電体が封口
時に端子板が横方向にずらされたのち封口されることに
より引張方向または横方向の応力がかけられており、か
つ、上記有機電解液（４）の電解質としてＬｉＰＦ 6 を
用い、上記正極集電体（１４）の引張方向または横方向
の応力を負荷した部分が有機電解液（４）で濡れている
ことを特徴とする有機電解液電池。1. An organic electrolytic solution battery comprising a positive electrode (1), a negative electrode (2) and an organic electrolytic solution (4) as a power generating element, wherein aluminum is used for the positive electrode current collector (14) and the current collector is a sealing member.
Sometimes the terminal board is displaced laterally and then sealed
Stress in the tensile direction or the lateral direction is applied, and LiPF 6 is used as the electrolyte of the organic electrolyte solution (4), and the tensile direction or the lateral direction of the positive electrode current collector (14) is An organic electrolyte battery, wherein a stressed portion is wet with the organic electrolyte (4) .
おいて、電流を遮断すべき部分が他の部分より細くなっ
ていることを特徴とする請求項１記載の有機電解液電
池。2. The organic electrolyte battery according to claim 1, wherein the positive electrode current collector (14) made of aluminum has a portion where a current is to be cut off is thinner than other portions.
部に排出する構造を有することを特徴とする請求項１ま
たは２記載の有機電解液電池。3. The organic electrolyte battery according to claim 1, which has a structure for discharging gas inside the battery from the gas discharge hole to the outside of the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32872692A JP3468538B2 (en) | 1992-11-13 | 1992-11-13 | Organic electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32872692A JP3468538B2 (en) | 1992-11-13 | 1992-11-13 | Organic electrolyte battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06163052A JPH06163052A (en) | 1994-06-10 |
| JP3468538B2 true JP3468538B2 (en) | 2003-11-17 |
Family
ID=18213494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32872692A Expired - Fee Related JP3468538B2 (en) | 1992-11-13 | 1992-11-13 | Organic electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3468538B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4495994B2 (en) | 2004-03-29 | 2010-07-07 | 株式会社東芝 | Nonaqueous electrolyte secondary battery |
| JP5252691B2 (en) * | 2008-04-28 | 2013-07-31 | 日立マクセル株式会社 | Cylindrical non-aqueous electrolyte primary battery and manufacturing method thereof |
-
1992
- 1992-11-13 JP JP32872692A patent/JP3468538B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06163052A (en) | 1994-06-10 |
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