JPH05821B2 - - Google Patents
Info
- Publication number
- JPH05821B2 JPH05821B2 JP58140746A JP14074683A JPH05821B2 JP H05821 B2 JPH05821 B2 JP H05821B2 JP 58140746 A JP58140746 A JP 58140746A JP 14074683 A JP14074683 A JP 14074683A JP H05821 B2 JPH05821 B2 JP H05821B2
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- sealing plate
- gas
- battery
- current collector
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims description 26
- 239000000565 sealant Substances 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000005060 rubber Substances 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 description 33
- 239000011247 coating layer Substances 0.000 description 15
- 230000002159 abnormal effect Effects 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 239000010406 cathode material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000004953 Aliphatic polyamide Substances 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- H01M50/148—Lids or covers characterised by their shape
- H01M50/154—Lid or cover comprising an axial bore for receiving a central current collector
-
- 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
Description
この発明は内部でのガス発生に対しガス排出機
能を有するアルカリ電池に係り、特に耐漏液性の
向上を図つたアルカリ電池に関する。
アルカリ一次電池は放電中あるいは貯蔵中に微
少ながらガス発生があることが知られている。
この場合通常のガス発生量に対しては電池自身
は勿論、電池使用機器に対し何ら問題ないが、例
えば電池を急放電したり、電池の正負極間をシヨ
ートしたり、あるいは機器への挿填ミスにより充
電が行なわれたりすると異常なガス量を発生する
ことがあり、最悪の場合電池の破裂事故を招くお
それがあつた。
そこで、従来この種のアルカリ電池として妨爆
弁を有する絶縁ガスケツトを用いるとともにガス
排出孔を有する陰極封口板を用い、電池内部での
ガス発生量が増大し内部圧力が所定以上上昇する
とガスケツトの妨爆弁を破つて陰極封口板のガス
排出孔より異常ガスを外部に排出するようにした
所謂ガス排出機能を有するものがある。
ところが、このようにすると、今度は次のよう
な不都合が生じる。すなわち、一般にアルカリ電
池は電極の負電位と電解液界面での表面張力の間
に生ずる電気毛管作用や、空気中の酸素ガスが
OH-に還元される電気化学反応などが原因で電
解液が集電棒に沿つて這い上がる現象がある。こ
のため、上述のように陰極封口板のガス排出孔が
開口したままになつていると、電解液が封口板の
内面に沿つて移動してきたとき、そのままガス排
出孔を通つて外部に流れ出てしまい耐漏液性が著
しく劣化する欠点があつた。
そこで、本願発明者らは、特願昭57−191692号
において、封口板内面のガス排出孔部分から集電
棒の溶接部分およびガスケツトへの嵌合部分にか
けて、ポリエチレン、ポリプロピレン等の接着剤
被覆層を形成し、電解液の這い上がりを阻止する
とともに急激なガス発生に対してはガス排出孔部
分の被覆層を破りガスの排出を可能にした技術を
提案した。
この技術により耐洩液性を著しくも向上させる
ことができるようになつたが、封口板周縁部に沿
つての洩液経路が依然として存在し、このため十
分な耐洩液性を確保することができない問題を発
見した。
この発明はこのような問題を解決するためにな
されたもので、封口板の少なくとも内面全域と外
面周縁部分および封口板に溶接された集電棒のガ
スケツトへの嵌合部にシール剤被膜層を形成する
ことにより所定圧力以上になつた内部発生ガスを
速みやかに外部に放出できることは勿論、良好な
耐液効果を得られるアルカリ電池を提供すること
を目的とする。
以下、この発明の一実施例を図面に従い説明す
る。
図において１は筒状の陽極金属缶で、この金属
缶１はニツケルメツキ鋼板を絞り加工してなるも
のである。
金属缶１内には発電要素を充填している。この
場合、金属缶１の中心部にはゲル状亜鉛の陰極剤
２を充填し、この陰極剤２の周りに合成繊維のセ
パレータ４を介して二酸化マンガンを主体とした
陽極合剤３を充填している。
金属缶１の開口部には絶縁ガスケツト５を設け
ている。このガスケツト５はナイロン6.6、ポリ
プロピレンなどの合成樹脂により一体成形される
もので、内側円筒部５１とこの内側円筒部５１の
周囲に厚さ0.8〜1.8mm程度の連結部５３を介して
形成される外側円筒部５２とを有し、また内側円
筒部５１と外側円筒部５２の上部の相対向する部
分に段部５４を形成するとともに外側円筒部５２
の上方開口端に沿つて折返し用突壁５５を形成し
ている。またガスケツト５の連結部５３には電池
内圧が30〜60Kg／cm2程度の圧力に異常上昇したと
き破裂するような厚さ0.1〜0.3mm程度の肉薄部５
６を有している。
ガスケツト５の段部５４に通気孔７ａを有する
環状の金属支持体７を介して陰極封口板８を載置
している。この封口板８はガス排出孔８ａを有
し、また内面に上記陰極剤２より導出されるとと
もに上記ガスケツトの内側円筒部５１の中空部に
嵌合された集電棒６を溶接などにて固定してい
る。
この場合封口板８はガス排出孔８ａ部分および
内面周縁部分を含む内面全域から外面の周縁部
分、そして集電棒６のガスケツト５への嵌合部分
にかけてシール剤被膜層９を形成している。この
被膜層９はゴム系接着剤あるいは合成樹脂系のも
ので、例えばポリイソブチレン、脂肪族ポリアミ
ド樹脂、クロロスルホン化ポリエチレン、ハロプ
レンゴム、塩素化ポリエチレン、エチレン−エチ
ルアクリレート共重合体、加硫又は未加硫の天然
ゴム、SBR、ネオプレン、プチルゴム、ニトリ
ゴム、ポリブタヂエンゴム、フツ化ゴムなどの接
着剤をシール剤として用いている。
ここで、封口板８のガス排出孔８ａを直径0.4
〜0.8mm程度とすればガス排出が可能であるばか
りかシール剤の粘度との関係で塗布時排出孔８ａ
より流れ出ないことが確認されている。また、シ
ール剤は注射器による滴下又は刷毛塗りなどにて
塗布され加圧又は減圧乾燥によつてシール剤被膜
９を形成している。このときの被膜９の肉厚は
0.05〜0.25mm程度であればガス圧の異常上昇によ
つて充分破裂する。
この状態で金属缶１の開口を半径方向に締付け
るとともに開口部を内方に折曲げガスケツト５の
折返し用突壁５５を介して封口板８上を押圧する
ことにより密封口する。なお、図中１０は絶縁チ
ユーブ、１１は金属ジヤケツトである。
したがつて、このような構成によると、常時集
電棒６に沿つて這い上がろうとする電解液は集電
棒６のガスケツト５への嵌合部に形成されたシー
ル剤被膜層９によりその這い上り速度を大巾に抑
制することができ、しかも封口板８の内面全域か
ら外面周縁部に形成されたシール剤被膜層９によ
りガス排出口８ａ部分での漏液径路を断つことが
でき、さらに封口板８の内面周縁部は金属支持板
７にシール剤被膜層９を介して密着されるととも
に封口板８の外面周縁部もガスケツト５の折返し
用突壁５５にシール剤被膜層９を介して密着され
これら部分での漏液径路をも断つことができるの
で封口板８の内面全域から外面周縁部にかけて良
好な耐漏液効果が得られることになる。またこの
状態で電池内部のガス圧が異常上昇すると、まず
ガスケツト５の肉薄部５６が押圧され伸びきつて
破れガスは金属支持体７の通気孔７ａを通つて封
口板８内部に達する。すると、今度はガス排出孔
８ａを覆つている接着剤被膜層９が押圧され破裂
し、これによりガスは排気孔８ａを通つて外部を
放出される。つまり、このようにすれば常時集電
棒６に沿つて這い上がろうとする電解液の移動を
抑制しつつ良好な耐漏液性を得られ、しかも電池
内部のガス圧が異常上昇になるとこれをすみやか
に外部に放出することもできる。また、封口板８
に集電棒６を溶接した状態でもシール剤を滴下又
は塗布するだけなので従来のフイルム状のものを
貼付けるのに比べ良好なシール剤被膜層が得ら
れ、この点でも良好な耐漏液性効果を期待でき
る。
ちなみにこの発明を適用したLR6形アルカルマ
ンガン電池〔Ａ〕とシール剤被膜層を陰極封口板
のガス排出孔部分および集電体のガスケツトへの
嵌合部分に施した電池〔Ｂ〕と、陰極口板にガス
排出孔を設けているがシール剤被膜層を施してい
ない電池〔Ｃ〕と、陰極封口板にガス排出孔を全
く設けていない電池〔Ｄ〕を夫々100個作り
600mA電流で１時間強制充電して内圧を上昇さ
せ破裂試験を行なつたところ第１表の結果が得ら
れた。
ここで、各電池〔Ａ〕，〔Ｂ〕，〔Ｃ〕，〔Ｄ〕とも
絶縁ガスケツトとして上述の実施例にて説明した
ものを用いている。また、この場合電池破裂個数
と数えるのは絶縁チユーブの裂け、集電棒の飛出
しまたは金属ジヤケツトのカシメ部分の裂けなど
電池外観に損傷を生じたもので、ガス圧によつて
ガスケツトの肉薄部が破れたものは外観損傷を生
じないので電池破裂として数えていない。
The present invention relates to an alkaline battery having a gas discharge function for internal gas generation, and more particularly to an alkaline battery with improved leakage resistance. It is known that alkaline primary batteries generate a small amount of gas during discharge or storage. In this case, there is no problem with the battery itself or the equipment using the battery for the normal amount of gas generated. If the battery is charged incorrectly, an abnormal amount of gas may be generated, and in the worst case, the battery may explode. Therefore, conventionally, this type of alkaline battery uses an insulating gasket with a detonation prevention valve and a cathode sealing plate with a gas discharge hole, and when the amount of gas generated inside the battery increases and the internal pressure rises above a certain level, the gasket becomes obstructed. Some devices have a so-called gas exhaust function in which the explosion valve is ruptured to exhaust abnormal gas to the outside from the gas exhaust hole of the cathode sealing plate. However, if this is done, the following inconvenience will occur. In other words, alkaline batteries generally rely on the electrocapillary action that occurs between the negative potential of the electrode and the surface tension at the electrolyte interface, and the action of oxygen gas in the air.
There is a phenomenon in which electrolyte solution creeps up along the current collector rod due to electrochemical reactions such as reduction to OH - . Therefore, if the gas exhaust hole of the cathode sealing plate is left open as described above, when the electrolyte moves along the inner surface of the sealing plate, it will flow out through the gas exhaust hole. The problem was that the liquid leakage resistance deteriorated significantly. Therefore, in Japanese Patent Application No. 57-191692, the inventors of the present application applied an adhesive coating layer of polyethylene, polypropylene, etc. from the gas discharge hole part on the inner surface of the sealing plate to the welded part of the current collector rod and the fitting part to the gasket. We proposed a technology that prevents the electrolyte from seeping up and allows the gas to escape by breaking the coating layer around the gas exhaust hole in case of rapid gas generation. Although this technology has made it possible to significantly improve leakage resistance, leakage paths still exist along the periphery of the sealing plate, making it difficult to ensure sufficient leakage resistance. I found a problem that cannot be solved. This invention was made to solve such problems, and includes forming a sealant coating layer on at least the entire inner surface and peripheral portion of the outer surface of the sealing plate and the fitting portion of the current collector rod welded to the sealing plate to the gasket. It is an object of the present invention to provide an alkaline battery that not only allows the internally generated gas that has reached a predetermined pressure to be quickly discharged to the outside, but also provides good liquid resistance. An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is a cylindrical anode metal can, and this metal can 1 is made by drawing a nickel-plated steel plate. The metal can 1 is filled with power generating elements. In this case, the center of the metal can 1 is filled with a gelled zinc cathode material 2, and around this cathode material 2, an anode mixture 3 mainly composed of manganese dioxide is filled through a synthetic fiber separator 4. ing. An insulating gasket 5 is provided at the opening of the metal can 1. This gasket 5 is integrally molded from synthetic resin such as nylon 6.6 or polypropylene, and is formed around an inner cylindrical portion 51 and a connecting portion 53 having a thickness of about 0.8 to 1.8 mm. The outer cylindrical part 52 has a step part 54 formed at the upper part of the inner cylindrical part 51 and the upper part of the outer cylindrical part 52 that face each other.
A folding projecting wall 55 is formed along the upper opening end of the opening. In addition, the connecting portion 53 of the gasket 5 has a thin wall portion 5 with a thickness of approximately 0.1 to 0.3 mm that will rupture when the internal pressure of the battery abnormally increases to approximately 30 to 60 kg/cm 2 .
6. A cathode sealing plate 8 is placed on the stepped portion 54 of the gasket 5 via an annular metal support 7 having a ventilation hole 7a. This sealing plate 8 has a gas discharge hole 8a, and a current collector rod 6, which is drawn out from the cathode agent 2 and fitted into the hollow part of the inner cylindrical part 51 of the gasket, is fixed to the inner surface by welding or the like. ing. In this case, the sealing plate 8 has a sealant coating layer 9 formed over the entire inner surface including the gas discharge hole 8a portion and the inner peripheral edge portion, the outer peripheral edge portion, and the fitting portion of the current collector rod 6 into the gasket 5. This coating layer 9 is made of a rubber adhesive or synthetic resin, such as polyisobutylene, aliphatic polyamide resin, chlorosulfonated polyethylene, haloprene rubber, chlorinated polyethylene, ethylene-ethyl acrylate copolymer, vulcanized or unvulcanized. Adhesives such as sulfuric natural rubber, SBR, neoprene, butyl rubber, nitri rubber, polybutadiene rubber, and fluorinated rubber are used as sealants. Here, the gas discharge hole 8a of the sealing plate 8 has a diameter of 0.4 mm.
~0.8 mm not only allows gas to be discharged, but also allows the discharge hole 8a to be closed during application due to the viscosity of the sealant.
It has been confirmed that there is no leakage. Further, the sealant is applied by dropping with a syringe or by brushing, and the sealant coating 9 is formed by drying under pressure or reduced pressure. The thickness of the coating 9 at this time is
If it is about 0.05 to 0.25 mm, it will rupture due to an abnormal increase in gas pressure. In this state, the opening of the metal can 1 is tightened in the radial direction, the opening is folded inward, and the sealing plate 8 is pressed through the folding projecting wall 55 of the gasket 5 to seal the opening. In the figure, 10 is an insulating tube, and 11 is a metal jacket. Therefore, with such a configuration, the electrolyte that always tries to creep up along the current collector rod 6 is prevented by the sealant coating layer 9 formed on the fitting portion of the current collector rod 6 to the gasket 5. The speed can be greatly suppressed, and the sealant coating layer 9 formed from the entire inner surface of the sealing plate 8 to the peripheral edge of the outer surface can cut off the leakage path at the gas discharge port 8a. The inner peripheral edge of the plate 8 is tightly attached to the metal support plate 7 via the sealant coating layer 9, and the outer circumferential edge of the sealing plate 8 is also closely attached to the folding projection wall 55 of the gasket 5 via the sealant coating layer 9. Since the liquid leakage path at these parts can also be cut off, a good liquid leakage resistance effect can be obtained from the entire inner surface of the sealing plate 8 to the outer peripheral edge. Furthermore, when the gas pressure inside the battery rises abnormally in this state, the thin wall portion 56 of the gasket 5 is first pressed and stretched, and the gas passes through the ventilation hole 7a of the metal support 7 and reaches the inside of the sealing plate 8. Then, the adhesive coating layer 9 covering the gas exhaust hole 8a is pressed and ruptured, whereby the gas is discharged to the outside through the exhaust hole 8a. In other words, by doing this, it is possible to obtain good leakage resistance while suppressing the movement of the electrolyte that constantly tries to creep up along the current collector rod 6, and also to quickly prevent abnormal rises in the gas pressure inside the battery. It can also be released to the outside. In addition, the sealing plate 8
Even when the current collector rod 6 is welded to the current collector rod 6, since the sealant is simply dripped or applied, a better sealant coating layer can be obtained compared to pasting a conventional film-like material, and in this respect also a good leakage-proof effect can be obtained. You can expect it. By the way, the LR6 type alkalmanganese battery [A] to which this invention is applied, the battery [B] in which a sealant film layer is applied to the gas discharge hole part of the cathode sealing plate and the fitting part to the gasket of the current collector, and the cathode port We made 100 each of a battery [C] that has a gas exhaust hole on the plate but does not have a sealant coating layer, and a battery [D] that has no gas exhaust hole on the cathode sealing plate.
When the internal pressure was increased by forced charging for 1 hour with a current of 600 mA and a burst test was performed, the results shown in Table 1 were obtained. Here, each of the batteries [A], [B], [C], and [D] uses the insulating gasket described in the above embodiment. In addition, in this case, the number of ruptured batteries is counted as damage to the external appearance of the battery, such as a torn insulating tube, a protruding current collector rod, or a torn caulked part of the metal jacket. A broken battery does not cause any damage to the appearance, so it is not counted as a battery explosion.
【表】
次にこれら電池〔Ａ〕，〔Ｂ〕，〔Ｃ〕，〔Ｄ〕の各
電池100個を温度60℃、湿度60％、の雰囲気中で
所定期間貯蔵したのち漏液発生率を調べたところ
第２表の結果が得られた。[Table] Next, 100 of each of these batteries [A], [B], [C], and [D] were stored for a specified period in an atmosphere with a temperature of 60°C and a humidity of 60%, and then the leakage rate was calculated. Upon investigation, the results shown in Table 2 were obtained.
【表】
しかして、第１表および第２表の結果からこの
発明により得られた電池〔Ａ〕は従来電池〔Ｂ〕，
〔Ｃ〕，〔Ｄ〕に比べ電池使用中異常ガスの発生に
も破裂を生じることかないばかりか常時の耐漏液
効果もすぐれていることが判明した。
なお、この発明は上記実施例にのみ限定されず
要旨を変更しない範囲で適宜変形して実施でき
る。例えば上述では封口板８の内面全域から外面
の周縁部分、そして集電棒６のガスケツト５への
嵌合部分にかけてシール剤被膜層９を形成した
が、少なくとも封口板８の内面全域と集電棒６の
ガスケツト５への嵌合部分にシール剤被膜層９を
形成することにより上述と同様の効果を期待する
ことができる。[Table] According to the results in Tables 1 and 2, the battery [A] obtained by the present invention is different from the conventional battery [B],
It was found that, compared to [C] and [D], not only did the battery not explode even when abnormal gas was generated during use, but it also had excellent leakage resistance at all times. It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be implemented with appropriate modifications without changing the gist. For example, in the above description, the sealant coating layer 9 was formed from the entire inner surface of the sealing plate 8 to the peripheral portion of the outer surface and the fitting portion of the current collector rod 6 to the gasket 5. By forming the sealant coating layer 9 on the portion that fits into the gasket 5, the same effects as described above can be expected.
図面はこの発明の一実施例を示す概略的構成図
である。
１……金属缶、２……陰極剤、３……陽極合
剤、４……セパレータ、５……ガスケツト、５１
……内側円筒部、５２……外側円筒部、５３……
連結部、５４……段部、５５……突壁、５６……
肉薄部、６……集電棒、７……金属支持体、７ａ
……通気孔、８……封口板、８ａ……ガス排出
孔、９……シール剤被膜層、１０……絶縁チユー
ブ、１１……金属ジヤケツト。
The drawing is a schematic diagram showing an embodiment of the present invention. 1... Metal can, 2... Cathode material, 3... Anode mixture, 4... Separator, 5... Gasket, 51
...Inner cylindrical part, 52...Outer cylindrical part, 53...
Connecting portion, 54...Stepped portion, 55...Protruding wall, 56...
Thin part, 6... Current collector rod, 7... Metal support, 7a
... Ventilation hole, 8 ... Sealing plate, 8a ... Gas discharge hole, 9 ... Sealing agent coating layer, 10 ... Insulating tube, 11 ... Metal jacket.
Claims (1)
設けられ且つガス圧により破砕する肉薄部を有す
る絶縁ガスケツトと、このガスケツト上に金属支
持体を介して載置され且つガス排出孔を有する封
口板と、上記発電要素より導出されるとともに上
記ガスケツトに嵌合され且つ上記封口板に固定さ
れる集電棒と、上記封口板の少なくとも内面全域
と外面周縁部分および上記集電棒のガスケツトへ
の嵌合部分に形成されたシール剤皮膜層とを具備
したことを特徴とするアルカリ電池。 ２ 上記シール剤皮膜層はゴム系接着剤あるいは
合成樹脂系接着剤からなることを特徴とする特許
請求の範囲第１項記載のアルカリ電池。[Claims] 1. An insulating gasket provided in the opening of a cylindrical metal can filled with a power generation element and having a thin wall portion that is crushed by gas pressure, and an insulating gasket placed on the gasket via a metal support. A sealing plate having a gas discharge hole, a current collector rod led out from the power generation element, fitted into the gasket, and fixed to the sealing plate, and at least the entire inner surface and peripheral portion of the outer surface of the sealing plate and the collector rod. An alkaline battery characterized by comprising a sealant film layer formed on a portion of an electric rod that fits into a gasket. 2. The alkaline battery according to claim 1, wherein the sealant film layer is made of a rubber adhesive or a synthetic resin adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58140746A JPS6032246A (en) | 1983-07-30 | 1983-07-30 | Alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58140746A JPS6032246A (en) | 1983-07-30 | 1983-07-30 | Alkaline battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6032246A JPS6032246A (en) | 1985-02-19 |
| JPH05821B2 true JPH05821B2 (en) | 1993-01-06 |
Family
ID=15275760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58140746A Granted JPS6032246A (en) | 1983-07-30 | 1983-07-30 | Alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032246A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR920004316B1 (en) * | 1987-08-28 | 1992-06-01 | 마쯔시다덴기산교 가부시가기아샤 | Alkali dry cell |
| US4999264A (en) * | 1989-11-24 | 1991-03-12 | Duracell Inc. | Aqueous electrochemical cell |
| US6270918B1 (en) * | 1999-02-08 | 2001-08-07 | Eveready Battery Company, Inc. | Low profile ventable seal for an electrochemical cell |
| JP4080131B2 (en) * | 2000-03-10 | 2008-04-23 | 松下電器産業株式会社 | Manganese battery |
| CN111937176A (en) * | 2018-04-06 | 2020-11-13 | 三洋电机株式会社 | Battery with a battery cell |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH047062A (en) * | 1990-04-25 | 1992-01-10 | Mitsubishi Heavy Ind Ltd | Coating method |
-
1983
- 1983-07-30 JP JP58140746A patent/JPS6032246A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH047062A (en) * | 1990-04-25 | 1992-01-10 | Mitsubishi Heavy Ind Ltd | Coating method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6032246A (en) | 1985-02-19 |
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