JPH0831397A - Explosion-proof battery - Google Patents
Explosion-proof batteryInfo
- Publication number
- JPH0831397A JPH0831397A JP6162593A JP16259394A JPH0831397A JP H0831397 A JPH0831397 A JP H0831397A JP 6162593 A JP6162593 A JP 6162593A JP 16259394 A JP16259394 A JP 16259394A JP H0831397 A JPH0831397 A JP H0831397A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- explosion
- proof
- pressure
- thin
- 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
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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、リチウム電池などに適
用される防爆型電池に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an explosion-proof battery applied to a lithium battery or the like.
【０００２】[0002]
【従来の技術】有機電解液を用いたリチウム電池は、高
率放電特性を確保させるために、反応面積をできるだけ
大きくする設計努力がなされている。このような電池に
対して異常電流負荷、異常加熱、破壊的な衝撃等が加え
られた時、電池内では急激な放電反応もしくは化学反応
が発生し、その反応による急激なガス発生が起こり、そ
の内圧で電池が破壊する危険性がある。そのため電池に
防爆安全装置が付加される。2. Description of the Related Art In a lithium battery using an organic electrolyte, design efforts are being made to make the reaction area as large as possible in order to ensure high rate discharge characteristics. When an abnormal current load, abnormal heating, destructive shock, etc. are applied to such a battery, a rapid discharge reaction or chemical reaction occurs in the battery, and a sudden gas generation due to the reaction occurs. There is a risk that the battery will be destroyed by the internal pressure. Therefore, an explosion-proof safety device is added to the battery.
【０００３】従来の電池の防爆安全装置の多くは、例え
ば実公平５−２１８２９号公報記載のように弁体を備え
た封口板を用いて電池ケースを密閉するか、または電池
ケース底面部に薄肉部を設けたものである。電池内に異
常なガス発生が起こった際、前者の弁体を備えた封口板
では弁体が破断し、後者の底面部に薄肉部を設けた電池
ケースはその薄肉部が破断することで、ガスを排出する
ことにより安全性を確保するのが一般的なものであっ
た。Most of the conventional battery explosion-proof safety devices use, for example, a sealing plate having a valve element to seal the battery case as described in Japanese Utility Model Publication No. 5-21829, or a thin wall on the bottom of the battery case. Parts are provided. When abnormal gas generation occurs in the battery, the valve body ruptures in the sealing plate equipped with the former valve body, and the battery case with the thin-walled portion on the bottom surface of the latter ruptures the thin-walled portion. It was general to secure safety by discharging gas.
【０００４】しかし、電池は機器内に内蔵されているこ
とが多く、電池が異常な内圧状態になった時、前記した
ケース底部の溝状薄肉部が破断するような安全装置を設
けた場合は、電池の破裂は防止できるが、破裂した溝状
薄肉部の裂け目から内部ガスと共に電解液が機器内に直
接噴き出し、機器が漏出した電解液によって使用不可能
となる惧れがある。また、前述した弁体を備えた封口板
を用いた場合は、その弁体の外面側に設けたキャップ端
子等のガス排気口が比較的小さいため、ガスを逃す排気
能力は十分と言えるほど大きくはない。従って、不適切
な電池の取扱い、例えば電池を異常高温下、例えば２０
０℃もあるような高温下においたりあるいは火中に投入
したり、強制的に電流を流したりするなどによって、ガ
ス排気能力以上のガスが発生した場合は、電池内圧が上
昇して破裂に至ることがある。さらに、電池の誤使用あ
るいは廃棄する際などで電池の側面部が圧壊された場
合、上下方向の一方の安全装置だけでは他方のガスの排
出が不十分となり、破裂に至ることがある。However, the battery is often built in the equipment, and when a safety device is provided so that the groove-like thin portion at the bottom of the case is broken when the battery is in an abnormal internal pressure state, Although it is possible to prevent the battery from rupturing, the electrolyte may directly spout into the device from the rupture of the ruptured groove-shaped thin portion together with the internal gas, and the device may become unusable due to the leaked electrolyte. In addition, when the sealing plate provided with the valve element described above is used, the gas exhaust port such as the cap terminal provided on the outer surface side of the valve element is relatively small, so the exhaust capacity for releasing gas is sufficiently large. There is no. Therefore, improper handling of the battery, for example, when the battery is under abnormally high temperature, for example, 20
If a gas with a capacity higher than the gas exhaust capacity is generated by being placed in a high temperature such as 0 ° C, throwing into a fire, or forcibly passing an electric current, the internal pressure of the battery rises and the battery bursts. Sometimes. Further, when the side surface of the battery is crushed due to misuse or disposal of the battery, the safety device in one of the up and down directions may not sufficiently discharge the other gas, which may cause the battery to burst.
【０００５】[0005]
【発明が解決しようとする課題】本発明が解決しようと
する従来の問題点は、防爆装置が電池の上部または下部
にのみ設けられていて充分な安全装置になっていなかっ
た事である。そこで本発明は安全装置の複合化と最適化
によって、電池使用時あるいは廃棄処理時に電池破裂等
の問題を生じない安全性に優れた防爆型電池を提供する
ことを目的とするものである。The conventional problem to be solved by the present invention is that the explosion-proof device is provided only on the upper or lower part of the battery and is not a sufficient safety device. Therefore, an object of the present invention is to provide an explosion-proof battery excellent in safety, which does not cause problems such as battery rupture during use or disposal of the battery by combining and optimizing the safety device.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記課題を解
決するために請求項１に係る発明は、側部の溝入れ部に
薄肉部を設けた電池ケースを用い、弁孔を備えた蓋板
と、排気口を備えた端子と、この両者の間に介在した前
記蓋板の弁孔を常時閉塞するように配設された弁体を含
む防爆封口板を有し、絶縁ガスケットにより前記電池ケ
ースの開口部を密閉した電池であって、電池内に発生し
たガス圧による前記電池ケースの溝入れ部の薄肉部の破
断圧力が、前記防爆封口板の弁体の破断圧力よりも大き
く、かつ電池封口部の耐圧より小さくなるように設定
し、請求項２に係る発明は薄肉部のある溝入れ部の破断
圧力を１５kgf／cm2以上とし、請求項３に係る発明は、
溝入れ部の薄肉部の破断圧力を５kgf／cm2以下とし、請
求項４に係る発明は、弁体を金属薄板としたものであ
る。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a first aspect of the invention, which uses a battery case having a thin groove portion in a groove portion of a side portion and is provided with a valve hole. A cover plate, a terminal provided with an exhaust port, and an explosion-proof sealing plate including a valve body arranged so as to always close a valve hole of the cover plate interposed between the cover plate and the terminal are provided by an insulating gasket. A battery in which the opening of the battery case is sealed, the breaking pressure of the thin portion of the grooved portion of the battery case due to the gas pressure generated in the battery is greater than the breaking pressure of the valve body of the explosion-proof sealing plate, In addition, the invention according to claim 2 sets the breaking pressure of the grooved portion having the thin portion to be 15 kgf / cm 2 or more, and the invention according to claim 3 is
The breaking pressure of the thin-walled portion of the grooved portion is set to 5 kgf / cm 2 or less, and the invention according to claim 4 uses a thin metal plate as the valve body.
【０００７】[0007]
【作用】本発明は上記する手段を備えたものであるた
め、ガス発生速度が遅い場合は、防爆封口板に設けられ
た弁体の破断のみで発生ガスを容易に放出できる。そし
て金属ケースの側部の溝入れ部に設けた薄肉部が破断す
ることはない。また、機器に組み込まれた状態で異常が
発生した際には、電解液が金属ケースの側部の溝入れ部
から噴出することはなく、電池交換のみで、電池を内蔵
した機器は再び使用可能である。さらに、廃棄時の焼却
による電池内部の急激なガス発生時、および電池側面部
が圧壊された時等においては金属ケースの側部の溝入れ
部に設けた薄肉部が破断し電池破裂等の問題を生じな
い。Since the present invention is provided with the above-mentioned means, when the gas generation rate is slow, the generated gas can be easily released only by breaking the valve element provided on the explosion-proof sealing plate. The thin portion provided in the grooved portion on the side of the metal case does not break. In addition, when an abnormality occurs in the state of being incorporated in the device, the electrolyte does not squirt from the grooved part on the side of the metal case, only the battery can be replaced, and the device with the built-in battery can be used again. Is. In addition, when gas is rapidly generated inside the battery due to incineration at the time of disposal, or when the side surface of the battery is crushed, the thin-walled part provided in the grooved part on the side of the metal case may break and the battery may burst. Does not occur.
【０００８】[0008]
【実施例】以下、本発明を円筒型リチウム電池に適用し
た実施例について説明する。EXAMPLES Examples in which the present invention is applied to a cylindrical lithium battery will be described below.
【０００９】図１において１は電池ケースを示す。電池
ケースの側部の溝入れ部１ａの破断圧力を調節するた
め、溝入れ部１ａに薄肉部２を設ける方法として、ニッ
ケル鍍金鋼板製の電池ケースの溝入れ部１ａを形成後、
刻印型を用いて、プレス圧縮により溝入れ部１ａの一部
に薄肉部２を形成している。In FIG. 1, reference numeral 1 indicates a battery case. In order to adjust the breaking pressure of the grooved portion 1a on the side of the battery case, as a method of providing the thin portion 2 in the grooved portion 1a, after forming the grooved portion 1a of the battery case made of nickel-plated steel sheet,
The stamped die is used to form the thin portion 2 in a part of the grooved portion 1a by press compression.
【００１０】電池ケース１の内部にはフッ化物、金属酸
化物等の正極活物質をシート状にし、負極活物質である
金属リチウムシートをセパレータ材を介して渦巻状に巻
回した発電要素３を収容している。電池ケース１の開口
部には、弁孔４を備えた蓋板５と、排気口６を備えたキ
ャップ状の端子板７と、この両者の間に介在する弁体８
等を含む防爆封口板９を絶縁性のガスケット１０を介し
て嵌合させ、ケースの開口部を金型で内側に折り曲げる
ことによりケースの開口部を密閉している。蓋板５の内
面には、発電要素３に一方の極板のリード片１１を溶接
して電気的に接続している。また、他方の極板リード片
（図示せず）はケース１の底部内面に接続して電気的に
接続している。弁体８には、アルミニウム等の金属薄板
を用いる。Inside the battery case 1, there is provided a power generating element 3 in which a positive electrode active material such as a fluoride or a metal oxide is formed into a sheet shape, and a metallic lithium sheet which is a negative electrode active material is spirally wound via a separator material. It is housed. At the opening of the battery case 1, a lid plate 5 having a valve hole 4, a cap-shaped terminal plate 7 having an exhaust port 6, and a valve body 8 interposed therebetween.
An explosion-proof sealing plate 9 including the above is fitted through an insulating gasket 10, and the opening of the case is bent inward by a mold to seal the opening of the case. On the inner surface of the cover plate 5, the lead piece 11 of one electrode plate is welded to the power generating element 3 and electrically connected thereto. The other electrode plate lead piece (not shown) is electrically connected to the inner surface of the bottom of the case 1. A thin metal plate such as aluminum is used for the valve body 8.
【００１１】上記のような構成において、弁体８の破断
圧力を２５kgf／cm2とし、電池ケース１の溝入れ部１ａ
に設けた薄肉部２の破断圧力を弁体８の破断圧力より８
kgf／cm2高い３３kgf／cm2に設定した電池ケースを用い
た電池をＡ１とし、弁体８の破断圧力より３５kgf／cm2
高い６０kgf／cm2に設定した電池ケースを用いた電池を
Ａ２、弁体８の破断圧力より５５kgf／cm2高い８０kgf
／cm2に設定した電池ケースを用いた電池をＡ３とす
る。一方、比較例として、溝入れ部１ａの薄肉部２の破
断圧力を弁体８の破断圧力よりも３kgf／cm2高い２８kg
f／cm2に設定した電池ケースを用いた電池をＢ、溝入れ
部１ａの薄肉部２の破断圧力を弁体８の破断圧力より６
１kgf／cm2高い８６kgf／cm2に設定した電池ケースを用
いた電池をＣとし、また、溝入れ部の破断圧力が封口耐
圧より大きい電池として、溝入れ部１ａには薄肉部２の
ない電池ケースを用いた従来電池をＤとする。なお、薄
肉部２の破断圧力（作動圧）は、ガス加圧によって測定
を行う。（表１）に実施例および比較例として製作した
電池の種類を示す。In the above structure, the breaking pressure of the valve body 8 is set to 25 kgf / cm 2, and the grooved portion 1a of the battery case 1 is set.
The breaking pressure of the thin portion 2 provided on the
The battery using the battery case set at kgf / cm 2 higher 33 kgf / cm 2 and A1, 35 kgf from the breaking pressure of the valve body 8 / cm 2
A2 using a battery case set to a high 60 kgf / cm 2 and 80 kgf higher by 55 kgf / cm 2 than the breaking pressure of the valve body 8.
The battery using the battery case set to / cm 2 is A3. On the other hand, as a comparative example, the breaking pressure of the thin portion 2 of the grooved portion 1a is 3 kgf / cm 2 higher than the breaking pressure of the valve body 8 and is 28 kg.
The battery using the battery case set to f / cm 2 is B, and the breaking pressure of the thin portion 2 of the grooved portion 1a is 6 from the breaking pressure of the valve body 8.
The battery using the battery case was set to 1 kgf / cm 2 higher 86kgf / cm 2 is C, also as a battery rupture pressure of the cutaway portions is greater than the sealing pressure-resistant, with no thin portion 2 in the cutaway portions 1a cells A conventional battery using a case is designated as D. The breaking pressure (operating pressure) of the thin portion 2 is measured by gas pressurization. Table 1 shows the types of batteries manufactured as examples and comparative examples.
【００１２】[0012]
【表１】 [Table 1]
【００１３】次に、これらの電池を用いて加熱試験とし
ての火中投入試験、さらに圧壊試験を行った結果を示
す。Next, the results of a fire throwing test as a heating test and a crushing test using these batteries will be shown.
【００１４】（１）火中投入試験 火中投入試験は、電池の廃棄時の焼却を想定した試験で
あって、炭火および木材等の焼却炉中で電池を焼却する
もので、このときの電池の状態を観察した。(1) Fire throwing test The fire throwing test is a test assuming the incineration at the time of discarding the battery, in which the battery is incinerated in an incinerator such as charcoal fire and wood. Was observed.
【００１５】（表２）に本発明の実施例の電池と比較例
の電池の火中投入試験結果を示す。Table 2 shows the results of a fire test of the batteries of Examples of the present invention and the batteries of Comparative Examples.
【００１６】[0016]
【表２】 [Table 2]
【００１７】（表２）の結果から、比較例電池Ｄは１０
０ケの電池中７７ケの電池が破裂するのに対し、溝入れ
部１ａに薄肉部２のある本発明の実施例電池Ａ１，Ａ
２，Ａ３は、破裂に至らなかった。また、溝入れ部１ａ
の破断圧力が電池封口部の耐圧に接近している比較例電
池Ｃにおいては、溝入れ部１ａに薄肉部２があるにもか
かわらず、急激なガス発生のため、溝入れ部１ａの薄肉
部２の破断が間に合わず封口部が変形して１００ケ中１
２ケの電池が破裂する。以上の結果から、電池ケースの
溝入れ部１ａの薄肉部２の破断圧力は、封口耐圧よりも
５kgf／cm2程度低くすることが望ましい。From the results of (Table 2), the comparative battery D was 10
77 batteries out of 0 batteries burst, whereas the batteries A1 and A of the present invention having the thin portion 2 in the grooved portion 1a
2, A3 did not burst. Also, the grooved portion 1a
In Comparative Example Battery C in which the rupture pressure of 1 is close to the pressure resistance of the battery sealing portion, the thin-walled portion of the grooved portion 1a is generated due to rapid gas generation even though the thin-walled portion 2 is present in the grooved portion 1a. The breakage of 2 was not made in time and the sealing part was deformed and 1 out of 100
Two batteries burst. From the above results, it is desirable that the breaking pressure of the thin portion 2 of the grooved portion 1a of the battery case is lower than the pressure resistance of the sealing by about 5 kgf / cm 2 .
【００１８】（２）圧壊試験 圧壊試験は、直径２０ｍｍの金属丸棒を電池と９０度の
角度をなすように配置し、電池の中央部を電池の直径方
向に１／２まで圧縮するもので、この時の電池の状態を
観察した。(2) Crush test In the crush test, a metal round bar having a diameter of 20 mm is arranged so as to form an angle of 90 degrees with the battery, and the central portion of the battery is compressed to 1/2 in the diameter direction of the battery. The state of the battery at this time was observed.
【００１９】（表３）に本発明の実施例の電池と比較例
の電池の圧壊試験結果を示す。Table 3 shows the results of the crush test of the battery of the example of the present invention and the battery of the comparative example.
【００２０】[0020]
【表３】 [Table 3]
【００２１】（表３）の結果から、比較例電池Ｄは電池
の破裂が１００ケ中９８ケの電池について発生するのに
対し、溝入れ部１ａに薄肉部２のある本発明の電池は、
破裂に至らなかった。From the results of (Table 3), the battery of Comparative Example D ruptures about 98 out of 100 batteries, whereas the battery of the present invention having the thin portion 2 in the grooved portion 1a shows
It didn't burst.
【００２２】上記の結果より、破断圧力を適正化した弁
体８を組み込んだ排気口６を備えた防爆封口板９と溝入
れ部１ａに薄肉部２との両方を併用することにより、従
来電池に比べ非常に安全な電池の作製が可能であること
がわかる。From the above results, by using both the explosion-proof sealing plate 9 having the exhaust port 6 in which the valve body 8 having the optimized breaking pressure is incorporated and the thin portion 2 in the grooved portion 1a, the conventional battery can be used. It can be seen that it is possible to manufacture a very safe battery as compared with.
【００２３】（表４）に落下試験の結果の一例を示す。
落下試験は、２ｍの高さから、コンクリート上に電池を
３方向から各５回ずつ落下し溝入れ部１ａの薄肉部２の
状態を観察した。Table 4 shows an example of the results of the drop test.
In the drop test, the battery was dropped from the height of 2 m onto the concrete 5 times from each of the 3 directions, and the state of the thin portion 2 of the grooved portion 1a was observed.
【００２４】[0024]
【表４】 [Table 4]
【００２５】溝入れ部１ａの薄肉部２の破断圧力を８kg
f／cm2に設定した電池Ｅは、溝入れ部１ａの薄肉部２が
非常に薄く、また強度的にもかなり弱いため前述した落
下試験においては、その衝撃により溝入れ部１ａが破断
するが、溝入れ部１ａの薄肉部２の破断圧力を１５kgf
／cm2に設定した電池Ｇは、落下による薄肉部の破断は
見られなかった。従って、薄肉部２のある溝入れ部１ａ
の破断圧力は１５kgf／cm2以上に設定する必要がある。The breaking pressure of the thin portion 2 of the grooved portion 1a is 8 kg.
In the battery E set to f / cm 2 , since the thin portion 2 of the grooved portion 1a is very thin and the strength is considerably weak, the grooved portion 1a is broken by the impact in the drop test described above. The breaking pressure of the thin portion 2 of the grooved portion 1a is 15 kgf
In Battery G set to / cm 2 , no breakage of the thin portion due to dropping was observed. Therefore, the grooved portion 1a having the thin portion 2
It is necessary to set the breaking pressure of 15 kgf / cm 2 or more.
【００２６】[0026]
【発明の効果】本発明は以上の説明より明らかなように
広範囲の条件化において破裂等の問題を生ぜず、廃棄時
の焼却による電池内部の急激なガス発生時、および電池
側面部が圧壊された時等においても破裂に至ることはな
く非常に安全な効果がある。As is apparent from the above description, the present invention does not cause a problem such as rupture in a wide range of conditions, and when a gas is rapidly generated inside the battery due to incineration at the time of disposal and the side surface of the battery is crushed. It does not cause rupture even when it is used, etc., and has a very safe effect.
【図１】本発明の一実施例における防爆型電池の縦断面
図FIG. 1 is a vertical sectional view of an explosion-proof battery according to an embodiment of the present invention.
【図２】同電池の溝入れ部の要部拡大側面図FIG. 2 is an enlarged side view of an essential part of a grooved part of the battery.
１ 電池ケース １ａ 溝入れ部 ２ 薄肉部 ３ 発電要素 ４ 弁孔 ５ 蓋板 ６ 排気口 ７ 端子板 ８ 弁体 ９ 防爆封口板 １０ ガスケット １１ リード片 DESCRIPTION OF SYMBOLS 1 Battery case 1a Grooving part 2 Thin part 3 Power generation element 4 Valve hole 5 Lid plate 6 Exhaust port 7 Terminal plate 8 Valve body 9 Explosion-proof sealing plate 10 Gasket 11 Lead piece
Claims (4)
ースに発電要素を収容し、弁孔を備えた蓋板と排気口を
備えた端子板との両者の間に介在して前記蓋板の弁孔を
常時閉塞するように配設された弁体とを含む防爆封口板
を有し、絶縁ガスケットにより前記電池ケースの開口部
を密閉した電池であって、電池内に発生したガス圧によ
る前記電池ケースの溝入れ部の薄肉部の破断圧力が、前
記防爆封口板の弁体の破断圧力よりも大きく、かつ電池
封口板の耐圧より小さく設定したことを特徴とする防爆
型電池。1. A battery case in which a thin portion is provided in a grooved portion on a side portion accommodates a power generation element, and is interposed between a lid plate having a valve hole and a terminal plate having an exhaust port. A battery having an explosion-proof sealing plate including a valve body disposed so as to always close the valve hole of the lid plate, and having an opening of the battery case sealed with an insulating gasket, which is generated in the battery. Explosion-proof battery characterized in that the breaking pressure of the thin portion of the grooved portion of the battery case due to gas pressure is set to be higher than the breaking pressure of the valve body of the explosion-proof sealing plate and smaller than the pressure resistance of the battery sealing plate. .
断圧力を１５kgf／cm2以上とした請求項１記載の防爆型
電池。2. The explosion-proof battery according to claim 1, wherein the rupture pressure of the grooved portion having the thin portion of the battery case is 15 kgf / cm 2 or more.
力を封口耐圧より５kgf／cm2以下とした請求項１または
２記載の防爆型電池。3. The explosion-proof battery according to claim 1, wherein the rupture pressure of the thin portion of the grooved portion of the battery case is 5 kgf / cm 2 or less based on the sealing pressure resistance.
ないし３のいずれかに記載の防爆型電池。4. The valve body is made of a thin metal plate.
The explosion-proof battery according to any one of 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6162593A JPH0831397A (en) | 1994-07-15 | 1994-07-15 | Explosion-proof battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6162593A JPH0831397A (en) | 1994-07-15 | 1994-07-15 | Explosion-proof battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0831397A true JPH0831397A (en) | 1996-02-02 |
Family
ID=15757546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6162593A Pending JPH0831397A (en) | 1994-07-15 | 1994-07-15 | Explosion-proof battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0831397A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002270140A (en) * | 2001-03-13 | 2002-09-20 | Shin Kobe Electric Mach Co Ltd | Non-aqueous electrolyte secondary battery |
| US6703157B1 (en) | 1999-04-30 | 2004-03-09 | Matsushita Electric Industrial Co., Ltd. | Cylindrical battery and method for manufacturing the same |
| WO2014119309A1 (en) * | 2013-01-31 | 2014-08-07 | 三洋電機株式会社 | Hermetic battery |
| WO2014119308A1 (en) * | 2013-01-31 | 2014-08-07 | 三洋電機株式会社 | Sealed battery |
| CN104253255A (en) * | 2013-06-28 | 2014-12-31 | 襄阳正信航空技术有限公司 | Secondary explosion-proof device of storage battery |
| CN107302062A (en) * | 2016-04-14 | 2017-10-27 | 三星Sdi株式会社 | Secondary cell |
| CN107425152A (en) * | 2017-09-18 | 2017-12-01 | 江苏万达新能源科技股份有限公司 | One kind automatically powers off explosion-proof lithium battery lamina tecti and application |
| CN108134020A (en) * | 2017-12-21 | 2018-06-08 | 苏州精控能源科技有限公司 | Safe battery case |
| KR20200020334A (en) | 2018-08-17 | 2020-02-26 | 주식회사 엘지화학 | Cylindrical Secondary Battery Including Top Openable Structure |
-
1994
- 1994-07-15 JP JP6162593A patent/JPH0831397A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6703157B1 (en) | 1999-04-30 | 2004-03-09 | Matsushita Electric Industrial Co., Ltd. | Cylindrical battery and method for manufacturing the same |
| JP2002270140A (en) * | 2001-03-13 | 2002-09-20 | Shin Kobe Electric Mach Co Ltd | Non-aqueous electrolyte secondary battery |
| JPWO2014119309A1 (en) * | 2013-01-31 | 2017-01-26 | 三洋電機株式会社 | Sealed battery |
| WO2014119308A1 (en) * | 2013-01-31 | 2014-08-07 | 三洋電機株式会社 | Sealed battery |
| CN104956516A (en) * | 2013-01-31 | 2015-09-30 | 三洋电机株式会社 | Sealed battery |
| WO2014119309A1 (en) * | 2013-01-31 | 2014-08-07 | 三洋電機株式会社 | Hermetic battery |
| JPWO2014119308A1 (en) * | 2013-01-31 | 2017-01-26 | 三洋電機株式会社 | Sealed battery |
| US10103370B2 (en) | 2013-01-31 | 2018-10-16 | Sanyo Electric Co., Ltd. | Sealed battery |
| CN104253255A (en) * | 2013-06-28 | 2014-12-31 | 襄阳正信航空技术有限公司 | Secondary explosion-proof device of storage battery |
| CN107302062A (en) * | 2016-04-14 | 2017-10-27 | 三星Sdi株式会社 | Secondary cell |
| CN107302062B (en) * | 2016-04-14 | 2021-11-23 | 三星Sdi株式会社 | Secondary battery |
| CN107425152A (en) * | 2017-09-18 | 2017-12-01 | 江苏万达新能源科技股份有限公司 | One kind automatically powers off explosion-proof lithium battery lamina tecti and application |
| CN108134020A (en) * | 2017-12-21 | 2018-06-08 | 苏州精控能源科技有限公司 | Safe battery case |
| KR20200020334A (en) | 2018-08-17 | 2020-02-26 | 주식회사 엘지화학 | Cylindrical Secondary Battery Including Top Openable Structure |
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