JPH09129195A - Explosion-proof sealing plate - Google Patents
Explosion-proof sealing plateInfo
- Publication number
- JPH09129195A JPH09129195A JP7282762A JP28276295A JPH09129195A JP H09129195 A JPH09129195 A JP H09129195A JP 7282762 A JP7282762 A JP 7282762A JP 28276295 A JP28276295 A JP 28276295A JP H09129195 A JPH09129195 A JP H09129195A
- Authority
- JP
- Japan
- Prior art keywords
- thin wall
- wall portion
- sealing plate
- explosion
- aluminum
- 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
- H01M50/30—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]
【発明の属する技術分野】本発明は、密閉型電池におけ
る防爆機構に関するものである。TECHNICAL FIELD The present invention relates to an explosion-proof mechanism in a sealed battery.
【０００２】[0002]
【従来の技術】従来より密閉型電池で化学反応等にとも
なって発生するガスによる内部圧力上昇、過充電による
発火、爆発の危険性に対する防爆機構として種々の機構
が用いられてきている。そのような中で、特開平６−１
９６１５０号公報にあるような溶接部分を剥離すること
によって電流を遮断するという機構が知られている。2. Description of the Related Art Conventionally, various mechanisms have been used as an explosion-proof mechanism against the danger of internal pressure increase due to gas generated by chemical reaction in a sealed battery, ignition due to overcharge, and explosion. Under such circumstances, Japanese Patent Laid-Open No. 6-1
A mechanism is known in which a current is cut off by peeling off a welded portion as disclosed in Japanese Patent Publication No. 96150.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな封口板の第一の課題して電流遮断圧力のバラツキが
ありこれまでの方式では内部圧力の上昇によって電流を
遮断する際に溶接強度が大きく影響していた。そこで電
流を遮断する際に溶接強度の影響を受けない、より精度
の高い電流遮断方式が必要となってきた。However, the first problem with such a sealing plate is the variation in the current interruption pressure, and in the conventional methods, the welding strength is large when the current is interrupted by the increase in the internal pressure. I was affected. Therefore, there is a need for a more accurate current interruption method that is not affected by welding strength when the current is interrupted.
【０００４】また、第二の課題として、多くの封口板で
温度抵抗体が用いられており、電解液が温度抵抗体に付
着して内部抵抗が上昇し電池性能を著しく低下させると
いう問題も起きている。As a second problem, a temperature resistor is used in many sealing plates, and there is a problem that the electrolytic solution adheres to the temperature resistor to increase the internal resistance and significantly deteriorate the battery performance. ing.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
の本発明の第一の技術手段は、破断強度の異なる２枚の
薄肉部を設けた金属箔を絶縁材料を介して２枚の金属箔
の薄肉部を同軸上に設置し、軸上で電気的に接続した構
造を有し、かつ上部金属箔薄肉部の径Ａと下部金属箔薄
肉部の径Ｂとの関係がＡ≧Ｂであるで構成することによ
るもので、さらには上部金属箔に凹部を設け、その凹部
の反転強度よりも弱い強度で破断する薄肉部を設けた下
部金属箔とで構成したり、または、上部金属箔に凹部を
設け、バーリング形状の絶縁材料を介し、同じく凹部を
設けた下部金属箔とで構成することである。The first technical means of the present invention for achieving the above object is to provide a metal foil provided with two thin-walled portions having different breaking strengths with each other through an insulating material. It has a structure in which the thin portion of the foil is installed coaxially and is electrically connected on the shaft, and the relation between the diameter A of the upper thin metal foil portion and the diameter B of the lower thin metal foil portion is A ≧ B. In addition, the upper metal foil is provided with a recess, and the lower metal foil is provided with a thin portion that breaks at a strength weaker than the reversal strength of the recess, or the upper metal foil. And a lower metal foil also provided with a recess through a burring-shaped insulating material.
【０００６】本発明の第二の技術手段は下部金属箔に通
気孔を設けないことである。The second technical means of the present invention is to provide no ventilation holes in the lower metal foil.
【０００７】[0007]
【発明の実施の形態】上記の技術第一の技術手段によっ
て、内部圧力の上昇によって電流を遮断する際に溶接強
度の影響を受けることなくより精度高く電流を遮断する
とともに下部金属箔よって上部金属箔の通気孔を塞ぐこ
となく大量のガス発生時に確実に内部ガスを排気するこ
とができ発火、爆発等の事故を防止することができる。BEST MODE FOR CARRYING OUT THE INVENTION According to the above-mentioned first technical means, the current is cut off more accurately without being affected by the welding strength when the current is cut off due to the increase of the internal pressure, and the upper metal is cut by the lower metal foil. It is possible to reliably discharge the internal gas when a large amount of gas is generated without blocking the ventilation holes of the foil, and to prevent accidents such as ignition and explosion.
【０００８】また、上記の技術第二の技術手段によっ
て、電池内の電解液が温度抵抗体に浸透することを大幅
に低減でき内部抵抗の上昇を抑制できる。Further, by the above-mentioned second technical means, it is possible to significantly reduce the permeation of the electrolytic solution in the battery into the temperature resistor and suppress the increase of the internal resistance.
【０００９】以下に、本発明の実施例について説明する
が、本発明はこれらの実施例のみに限定されるものでは
ない。Examples of the present invention will be described below, but the present invention is not limited to these examples.
【００１０】[0010]
（実施例１）厚さ０．１５ｍｍ、外径φ１２．７ｍｍの
アルミニウム製金属箔１の中央部に外径φ４．０ｍｍの
Ｃ型形状の刻印を用いて薄肉部１ａ設け、厚さ０．３ｍ
ｍ、外径φ１３．５ｍｍでφ１．５ｍｍの通気孔を４つ
持つアルミニウム製金属箔２の中央部に外径φ１．０ｍ
ｍの突起部２ａを設けこの二枚の金属箔を絶縁ガスケッ
ト３を介して金属箔１の中央部と突起部２ａを超音波溶
接した。これをφ１．５ｍｍの通気孔を４つ持つアルミ
製金属ケース４の中に挿入し、その上部に温度抵抗体５
および、φ１．５ｍｍの通気孔を４つ持つ金属製キャッ
プ６をのせて、かしめて封口板を得た。この封口板の断
面図を（図１）に示す。(Example 1) A thin-walled portion 1a was provided in the center of an aluminum metal foil 1 having a thickness of 0.15 mm and an outer diameter of φ12.7 mm by using a C-shaped stamp having an outer diameter of 4.0 mm, and a thickness of 0.3 m.
m, outer diameter φ13.5 mm, and outer diameter φ1.0 m at the center of the aluminum metal foil 2 having four ventilation holes of φ1.5 mm
The protrusion 2a of m was provided, and the two metal foils were ultrasonically welded to the central portion of the metal foil 1 and the protrusion 2a via the insulating gasket 3. Insert this into a metal case 4 made of aluminum with four ventilation holes of φ1.5 mm, and place a temperature resistor 5 on top of it.
Then, a metal cap 6 having four ventilation holes of φ1.5 mm was placed and caulked to obtain a sealing plate. A cross-sectional view of this sealing plate is shown in (FIG. 1).
【００１１】（実施例２）厚さ０．１０ｍｍ、外径φ１
２．７ｍｍのアルミニウム製金属箔７の中央部に外径φ
４．０ｍｍのＣ型形状の刻印を用いて薄肉部７ａ設け、
厚さ０．１０ｍｍ、外径φ１３．５ｍｍでφ１．５ｍｍ
の通気孔を４つ持つアルミニウム製金属箔８に外径φ
２．５ｍｍのＯ型形状の刻印を用いて薄肉部８ａを設け
この二枚の金属箔を絶縁ガスケット３を介してそれぞれ
の箔の中央部を溶接した。ここで、下方の金属箔の薄肉
部の破断強度は１０〜１３ｋｇ／ｃｍ2であり、上方の
金属箔の薄肉部の破断強度は１８〜２４ｋｇ／ｃｍ2で
ある。これをφ１．５ｍｍの通気孔を４つ持つアルミ製
金属ケース４の中に挿入し、その上部に温度抵抗体５お
よび、φ１．５ｍｍの通気孔を４つ持つ金属製キャップ
６をのせて、かしめて封口板を得た。この封口板の断面
図を（図２）に示す。(Example 2) Thickness 0.10 mm, outer diameter φ1
Outer diameter φ in the central part of the aluminum metal foil 7 of 2.7 mm
The thin portion 7a is provided by using a C-shaped stamp of 4.0 mm,
Thickness 0.10 mm, outer diameter φ13.5 mm, φ1.5 mm
The outer diameter of the aluminum metal foil 8 with 4 ventilation holes is φ
A thin portion 8a was provided by using an O-shaped marking of 2.5 mm, and the two metal foils were welded to each other through the insulating gasket 3 at their central portions. Here, the breaking strength of the thin portion of the lower metal foil is 10 to 13 kg / cm 2 , and the breaking strength of the thin portion of the upper metal foil is 18 to 24 kg / cm 2 . This is inserted into an aluminum metal case 4 having four φ1.5 mm ventilation holes, and a temperature resistor 5 and a metal cap 6 having four φ1.5 mm ventilation holes are placed on top of it. It was caulked to obtain a sealing plate. A cross-sectional view of this sealing plate is shown in (FIG. 2).
【００１２】（実施例３）厚さ０．１０ｍｍ、外径φ１
２．７ｍｍのアルミニウム製金属箔７の中央部に外径φ
４．０ｍｍのＣ型形状の刻印を用いて薄肉部７ａ設け、
さらに中央部に段差０．５ｍｍの凹部設けて、厚さ０．
１０ｍｍ、外径φ１３．５ｍｍでφ１．５ｍｍの通気孔
を４つ持つアルミニウム製金属箔８に外径φ２．５ｍｍ
のＯ型形状の刻印を用いて薄肉部８ａを設け、この二枚
の金属箔を絶縁ガスケット３を介してそれぞれの箔の中
央部を溶接した。これをφ１．５ｍｍの通気孔を４つ持
つアルミ製金属ケース４の中に挿入し、その上部に温度
抵抗体５および、φ１．５ｍｍの通気孔を４つ持つ金属
製キャップ６をのせて、かしめて封口板を得た。この封
口板の断面図を（図３）に示す。(Embodiment 3) Thickness 0.10 mm, outer diameter φ1
Outer diameter φ in the central part of the aluminum metal foil 7 of 2.7 mm
The thin portion 7a is provided by using a C-shaped stamp of 4.0 mm,
Further, a concave portion having a step of 0.5 mm is provided in the central portion to have a thickness of 0.
Aluminum metal foil 8 with 4 holes of 10mm, outer diameter φ13.5mm and φ1.5mm, outer diameter φ2.5mm
The thin-walled portion 8a was provided by using the O-shaped engraving, and the two metal foils were welded to each other through the insulating gasket 3 at the central portions of the respective foils. This is inserted into an aluminum metal case 4 having four φ1.5 mm ventilation holes, and a temperature resistor 5 and a metal cap 6 having four φ1.5 mm ventilation holes are placed on top of it. It was caulked to obtain a sealing plate. A cross-sectional view of this sealing plate is shown in (FIG. 3).
【００１３】（実施例４）厚さ０．１０ｍｍ、外径φ１
２．７ｍｍのアルミニウム製金属箔７の中央部に外径φ
４．０ｍｍのＣ型形状の刻印を用いて薄肉部７ａ設け、
さらに中央部に段差１．２０ｍｍの凹部設けて、厚さ
０．１０ｍｍ、外径φ１３．５ｍｍでφ１．５ｍｍの通
気孔を４つ持つアルミニウム製金属箔８に外径φ２．５
ｍｍのＯ型形状の刻印を用いて薄肉部８ａを設け、さら
に中央部に段差０．７ｍｍの凹部設けてこの二枚の金属
箔をバーリング形状を有する絶縁ガスケット９を介して
それぞれの箔の中央部を溶接した。これをφ１．５ｍｍ
の通気孔を４つ持つアルミ製金属ケース４の中に挿入
し、その上部に温度抵抗体５および、φ１．５ｍｍの通
気孔を４つ持つ金属製キャップ６をのせて、かしめて封
口板を得た。この封口板の断面図を（図４）に示す。(Embodiment 4) Thickness 0.10 mm, outer diameter φ1
Outer diameter φ in the central part of the aluminum metal foil 7 of 2.7 mm
The thin portion 7a is provided by using a C-shaped stamp of 4.0 mm,
Further, a concave portion with a step of 1.20 mm is provided in the central portion, and an aluminum metal foil 8 having a thickness of 0.10 mm, an outer diameter of φ13.5 mm and four ventilation holes of φ1.5 mm has an outer diameter of φ2.5.
mm thin section 8a is provided by using an O-shaped marking, and a recess having a step of 0.7 mm is further provided in the center, and the two metal foils are inserted through the insulating gasket 9 having the burring shape to the center of each foil. Welded parts. Φ1.5mm
Insert it into an aluminum metal case 4 with 4 ventilation holes, and place a temperature resistor 5 and a metal cap 6 with 4 ventilation holes of φ1.5 mm on top of it and crimp it to form a sealing plate. Obtained. A cross-sectional view of this sealing plate is shown in (FIG. 4).
【００１４】（実施例５）厚さ０．１０ｍｍ、外径φ１
２．７ｍｍのアルミニウム製金属箔７の中央部に外径φ
４．０ｍｍのＣ型形状の刻印を用いて薄肉部７ａ設け、
さらに中央部に段差０．５ｍｍの凹部設けて、厚さ０．
１０ｍｍ、外径φ１３．５ｍｍで通気孔持たないアルミ
ニウム製金属箔１０に外径φ２．５ｍｍのＯ型形状の刻
印を用いて薄肉部１０ａを設け、この二枚の金属箔を絶
縁ガスケット３を介してそれぞれの箔の中央部を溶接し
た。これをφ１．５ｍｍの通気孔を４つ持つアルミ製金
属ケース４の中に挿入し、その上部に温度抵抗体５およ
び、φ１．５ｍｍの通気孔を４つ持つ金属製キャップ６
をのせて、かしめて封口板を得た。この封口板の断面図
を（図５）に示す。(Embodiment 5) Thickness 0.10 mm, outer diameter φ1
Outer diameter φ in the central part of the aluminum metal foil 7 of 2.7 mm
The thin portion 7a is provided by using a C-shaped stamp of 4.0 mm,
Further, a concave portion having a step of 0.5 mm is provided in the central portion to have a thickness of 0.
An aluminum metal foil 10 having an outer diameter of 13.5 mm and an outer diameter of 13.5 mm is provided with a thin-walled portion 10a using an O-shaped stamp having an outer diameter of 2.5 mm, and the two metal foils are interposed via an insulating gasket 3. Welded the central part of each foil. This is inserted into an aluminum metal case 4 having four φ1.5 mm ventilation holes, and a temperature resistor 5 and a metal cap 6 having four φ1.5 mm ventilation holes above it.
Then, it was caulked to obtain a sealing plate. A cross-sectional view of this sealing plate is shown in (FIG. 5).
【００１５】実施例１および５で得た封口板を（図６）
に示す評価装置を用いて、金属ケース４の底部より毎秒
０．６ｋｇ／ｃｍ2で昇圧しながら高圧空気を送り、キ
ャップ６との間で電流が遮断される高圧空気の圧力を圧
力センサーを用いて測定した。The sealing plates obtained in Examples 1 and 5 were used (FIG. 6).
Using the evaluation device shown in Fig. 1 , high pressure air is sent from the bottom of the metal case 4 while increasing the pressure at 0.6 kg / cm 2 per second , and the pressure of the high pressure air at which the current is cut off between the cap 6 and the pressure sensor is used. Measured.
【００１６】それぞれの結果を（表１）に示す。The respective results are shown in (Table 1).
【００１７】[0017]
【表１】 [Table 1]
【００１８】また、実施例１および５で得た封口板を用
いて非水系電解液を用いるリチウム二次電池にし、その
電池を８５℃で３週間保管した後、常温でそれぞれの封
口板の内部抵抗を測定した。Further, using the sealing plates obtained in Examples 1 and 5, a lithium secondary battery using a non-aqueous electrolyte solution was prepared, and the batteries were stored at 85 ° C. for 3 weeks. The resistance was measured.
【００１９】それぞれの結果を（表２）に示す。The respective results are shown in (Table 2).
【００２０】[0020]
【表２】 [Table 2]
【００２１】以上の結果から本発明の構造を有する封口
板は電流遮断する圧力のバラツキが低下することがわか
る。From the above results, it can be seen that the sealing plate having the structure of the present invention reduces variations in the pressure for interrupting the current.
【００２２】また、請求項４に示す構造を有する封口板
は上記内容に加えて、内部抵抗の上昇も抑制できること
がわかる。Further, it is understood that the sealing plate having the structure according to claim 4 can suppress the increase in internal resistance in addition to the above contents.
【００２３】[0023]
【発明の効果】以上のように本発明は発火等の事故をよ
り精度高く防止するために、電池内部圧力が上昇したと
き確実に電流を遮断できる封口板および、電解液の浸透
による抵抗上昇を抑制できる封口板を実現することがで
きる。As described above, in order to prevent accidents such as ignition with higher accuracy, the present invention provides a sealing plate capable of reliably interrupting current when the internal pressure of the battery rises, and an increase in resistance due to permeation of the electrolyte. It is possible to realize a sealing plate that can be suppressed.
【図１】本発明の（実施例１）における封口板の断面図FIG. 1 is a cross-sectional view of a sealing plate according to (Example 1) of the present invention.
【図２】本発明の（実施例２）における封口板の断面図FIG. 2 is a sectional view of a sealing plate according to (Example 2) of the present invention.
【図３】本発明の（実施例３）における封口板の断面図FIG. 3 is a cross-sectional view of a sealing plate according to (Example 3) of the present invention.
【図４】本発明の（実施例４）における封口板の断面図FIG. 4 is a sectional view of a sealing plate according to (Example 4) of the present invention.
【図５】本発明の（実施例５）における封口板の断面図FIG. 5 is a cross-sectional view of a sealing plate according to (Example 5) of the present invention.
【図６】電流遮断圧力の簡易的な評価装置の概略図FIG. 6 is a schematic diagram of a simple evaluation device for current interruption pressure.
１、２、７、８ アルミ箔 １ａ、７ａ、８ａ アルミ箔薄肉部 ２ａ 突起部 ３ 絶縁ガスケット ４ アルミ製金属ケース ５ 温度抵抗体 ６ キャップ ９ バーリング形状を有する絶縁ガスケ
ット １０ 通気孔を有さないアルミ箔 １０ａ 通気孔を有さないアルミ箔薄肉部 １１ａ、１１ｂ 電極 １２ 圧力センサー １３ 高圧力空気導入口1, 2, 7, 8 Aluminum foil 1a, 7a, 8a Thin aluminum foil portion 2a Projection portion 3 Insulation gasket 4 Aluminum metal case 5 Temperature resistor 6 Cap 9 Insulation gasket 10 with burring shape 10 Aluminum without air vent Foil 10a Aluminum foil thin-walled part without ventilation hole 11a, 11b Electrode 12 Pressure sensor 13 High pressure air inlet
───────────────────────────────────────────────────── フロントページの続き (72)発明者 平川 靖 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasushi Hirakawa 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.
Claims (1)
箔を配していて、各金属箔には薄肉部を同軸上に設け、
軸上で上下の金属箔を電気的に接続しており、下方の金
属箔の薄肉部の破断強度は上方の金属箔の薄肉部の破断
強度より小さく、かつ上方の金属箔の薄肉部内に下方の
金属箔の薄肉部が位置した防爆封口板。1. A two-layer metal foil is arranged above and below via an insulating gasket, and a thin portion is coaxially provided on each metal foil.
The upper and lower metal foils are electrically connected on the shaft, the breaking strength of the thin portion of the lower metal foil is smaller than the breaking strength of the thin portion of the upper metal foil, and the Explosion-proof sealing plate in which the thin part of the metal foil of is located.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28276295A JP3196607B2 (en) | 1995-10-31 | 1995-10-31 | Explosion-proof sealing plate for sealed batteries |
| CNB961976527A CN1144302C (en) | 1995-10-31 | 1996-10-28 | Explosion-proof seal plate for enclosed type cell and production method thereof |
| EP04010499A EP1458038B1 (en) | 1995-10-31 | 1996-10-28 | Explosion-proof seal plate for sealed type cell and production method thereof |
| PCT/JP1996/003148 WO1997016859A1 (en) | 1995-10-31 | 1996-10-28 | Explosion-proof seal plate for enclosed type cell and production method thereof |
| US09/068,038 US6242126B1 (en) | 1995-10-31 | 1996-10-28 | Explosion-proof seal plate for enclosed type cell and production method thereof |
| KR1019980703115A KR100324863B1 (en) | 1995-10-31 | 1996-10-28 | Explosion-proof seal plate for enclosed type cell and production method thereof |
| EP96935470A EP0859416B1 (en) | 1995-10-31 | 1996-10-28 | Explosion-proof seal plate for enclosed type cell and production method thereof |
| CA002240415A CA2240415C (en) | 1995-10-31 | 1996-10-28 | Explosion-proof seal plate for sealed type cell and production method thereof |
| DE69635250T DE69635250T2 (en) | 1995-10-31 | 1996-10-28 | Explosion-proof sealing plate for hermetic cell and manufacturing process |
| DE69634668T DE69634668T2 (en) | 1995-10-31 | 1996-10-28 | EXPLOSION-RESISTANT SEALING PLATE FOR HERMETIC CELL AND MANUFACTURING PROCESS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28276295A JP3196607B2 (en) | 1995-10-31 | 1995-10-31 | Explosion-proof sealing plate for sealed batteries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09129195A true JPH09129195A (en) | 1997-05-16 |
| JP3196607B2 JP3196607B2 (en) | 2001-08-06 |
Family
ID=17656746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28276295A Expired - Fee Related JP3196607B2 (en) | 1995-10-31 | 1995-10-31 | Explosion-proof sealing plate for sealed batteries |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3196607B2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH103896A (en) * | 1996-06-14 | 1998-01-06 | Matsushita Electric Ind Co Ltd | Explosion proof sealing port plate for sealed battery |
| JPH1131490A (en) * | 1997-07-09 | 1999-02-02 | Matsushita Electric Ind Co Ltd | Explosion-proof type sealed battery |
| JP2000123813A (en) * | 1998-10-15 | 2000-04-28 | Toyo Kohan Co Ltd | Manufacture of safety device of sealed battery and equipment |
| WO2003010848A1 (en) * | 2001-07-23 | 2003-02-06 | Korea Power Cell Inc. | Lithium ion secondary battery |
| KR100381328B1 (en) * | 1999-12-28 | 2003-04-23 | 주식회사 엘지화학 | Li-ION BATTERY USING SIMPLIFIED SAFETY VENT |
| EP1876660A1 (en) * | 2005-04-22 | 2008-01-09 | Matsushita Electric Industrial Co., Ltd. | Secondary battery |
| CN100423324C (en) * | 2006-09-04 | 2008-10-01 | 徐立球 | Explosion protection for batteries |
| JP2009110808A (en) * | 2007-10-30 | 2009-05-21 | Sanyo Electric Co Ltd | Sealed battery |
| JP5110671B2 (en) * | 2011-03-09 | 2012-12-26 | パナソニック株式会社 | Cylindrical battery |
| US8475958B2 (en) | 2005-01-06 | 2013-07-02 | Panasonic Corporation | Nickel hydrogen storage battery and method for manufacturing negative electrode thereof |
| WO2014129462A1 (en) * | 2013-02-20 | 2014-08-28 | タイコエレクトロニクスジャパン合同会社 | Opening sealing body |
| WO2015068353A1 (en) * | 2013-11-05 | 2015-05-14 | 三洋電機株式会社 | Stopper for sealed battery, and sealed battery |
| WO2016157750A1 (en) * | 2015-03-27 | 2016-10-06 | 三洋電機株式会社 | Cylindrical battery |
-
1995
- 1995-10-31 JP JP28276295A patent/JP3196607B2/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH103896A (en) * | 1996-06-14 | 1998-01-06 | Matsushita Electric Ind Co Ltd | Explosion proof sealing port plate for sealed battery |
| JPH1131490A (en) * | 1997-07-09 | 1999-02-02 | Matsushita Electric Ind Co Ltd | Explosion-proof type sealed battery |
| JP2000123813A (en) * | 1998-10-15 | 2000-04-28 | Toyo Kohan Co Ltd | Manufacture of safety device of sealed battery and equipment |
| KR100381328B1 (en) * | 1999-12-28 | 2003-04-23 | 주식회사 엘지화학 | Li-ION BATTERY USING SIMPLIFIED SAFETY VENT |
| WO2003010848A1 (en) * | 2001-07-23 | 2003-02-06 | Korea Power Cell Inc. | Lithium ion secondary battery |
| US8475958B2 (en) | 2005-01-06 | 2013-07-02 | Panasonic Corporation | Nickel hydrogen storage battery and method for manufacturing negative electrode thereof |
| EP1876660A1 (en) * | 2005-04-22 | 2008-01-09 | Matsushita Electric Industrial Co., Ltd. | Secondary battery |
| EP1876660A4 (en) * | 2005-04-22 | 2009-03-04 | Panasonic Corp | Secondary battery |
| US7704631B2 (en) | 2005-04-22 | 2010-04-27 | Panasonic Corporation | Secondary battery with improved shock resistance |
| CN100423324C (en) * | 2006-09-04 | 2008-10-01 | 徐立球 | Explosion protection for batteries |
| JP2009110808A (en) * | 2007-10-30 | 2009-05-21 | Sanyo Electric Co Ltd | Sealed battery |
| JP5110671B2 (en) * | 2011-03-09 | 2012-12-26 | パナソニック株式会社 | Cylindrical battery |
| WO2014129462A1 (en) * | 2013-02-20 | 2014-08-28 | タイコエレクトロニクスジャパン合同会社 | Opening sealing body |
| JPWO2014129462A1 (en) * | 2013-02-20 | 2017-02-02 | Ｌｉｔｔｅｌｆｕｓｅジャパン合同会社 | Sealing body |
| WO2015068353A1 (en) * | 2013-11-05 | 2015-05-14 | 三洋電機株式会社 | Stopper for sealed battery, and sealed battery |
| US9806323B2 (en) | 2013-11-05 | 2017-10-31 | Sanyo Electric Co., Ltd. | Sealing body for sealed battery and sealed battery |
| WO2016157750A1 (en) * | 2015-03-27 | 2016-10-06 | 三洋電機株式会社 | Cylindrical battery |
| US10403872B2 (en) | 2015-03-27 | 2019-09-03 | Sanyo Electric Co., Ltd. | Cylindrical batteries |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3196607B2 (en) | 2001-08-06 |
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