JPS5882457A - Dry cell - Google Patents
Dry cellInfo
- Publication number
- JPS5882457A JPS5882457A JP56179650A JP17965081A JPS5882457A JP S5882457 A JPS5882457 A JP S5882457A JP 56179650 A JP56179650 A JP 56179650A JP 17965081 A JP17965081 A JP 17965081A JP S5882457 A JPS5882457 A JP S5882457A
- Authority
- JP
- Japan
- Prior art keywords
- zinc
- sealing body
- synthetic resin
- dry cell
- electrolyte
- 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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/182—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells with a collector centrally disposed in the active mass, e.g. Leclanché cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
Description
【発明の詳細な説明】
この発明は円筒形乾電池において亜鉛缶の外側を覆う合
成樹脂層部分の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the synthetic resin layer covering the outside of a zinc can in a cylindrical dry battery.
従来の円筒形乾電池においては、容器となる亜鉛缶と外
装用のメタルジャケットとの間を電気的−に絶縁し、か
つ電解液の漏洩を防止する目的で、塩化ビニルなどから
な怜熱収鉱性樹脂チューブが用いられている。すなわち
従来の乾電池は例えば、亜鉛缶の内側に＠極合剤ならび
に炭素棒を装填し、該亜鉛缶の上端開口を合成樹脂製封
口体にて閉塞するとともに、亜鉛缶底面に環状のバッキ
ングを配したうえで、熱収縮性樹脂チューブを嵌挿し、
かつこれを加熱収縮せしめ、しかる後にこの樹脂チュー
ブの外側をメタルジャケットにて外装した構造となって
おシ、熱収縮した上記のＩｌｌチューブによって、上記
封口体の外周縁から亜鉛缶の外周面および底面めバッキ
ングまでを一体に包被しているのである。In conventional cylindrical dry batteries, a heat absorbing material such as vinyl chloride is used to electrically insulate between the zinc can that serves as the container and the metal jacket for the exterior, and to prevent electrolyte leakage. A plastic tube is used. In other words, in a conventional dry battery, for example, a @ electrode mixture and a carbon rod are loaded inside a zinc can, the top opening of the zinc can is closed with a synthetic resin sealing body, and an annular backing is arranged on the bottom of the zinc can. After that, insert the heat-shrinkable resin tube,
This is heat-shrinked, and then the outside of this resin tube is covered with a metal jacket. It covers everything up to the bottom backing.
しかしながら、この従来の熱収縮性樹脂チューブによる
被曹構造にあっては、これを加熱収縮せしめる際に、仮
に均一な加熱処理を行ったとしても各部の収縮に少なか
らぬ収縮むらを生じるため、皺が発生し易く、亜鉛缶等
の表面に対して密着性が悪い。従って放電の進行により
゛亜鉛缶に穴ができた場合や、亜鉛缶と封口体との間か
ら電解液が供出した場合に、電解液は一時的に樹脂チュ
ーブ内に留保されるものの、結局紘樹脂チューブと亜鉛
缶噂の表面との間な伝つて外部へ漏出してしまう。However, with this conventional heat-shrinkable resin tube structure, when it is heat-shrinked, even if heat treatment is performed uniformly, considerable unevenness occurs in the shrinkage of each part, resulting in wrinkles. It tends to occur and has poor adhesion to the surface of zinc cans, etc. Therefore, if a hole is formed in the zinc can due to the progress of electrical discharge, or if electrolyte is released from between the zinc can and the sealing body, the electrolyte will be temporarily retained in the resin tube, but eventually It travels between the resin tube and the surface of the zinc can and leaks to the outside.
この発明は上記のような点に鑑みてなされ丸もので、そ
の目的とするところは、亜鉛缶の穴あるいは封口体との
接合面から漏出した電解液の外部への漏洩を防止して耐
漏液性能に優れた乾電池を提供することにある。This invention was made in view of the above points, and its purpose is to prevent electrolyte from leaking out from the hole in the zinc can or from the joint surface with the sealing body, thereby making it leak-proof. Our goal is to provide dry batteries with excellent performance.
すなわち、本発明の乾電池は、亜鉛缶の外周面および該
亜鉛缶上端の封口体外周縁に、未硬化状態の合成樹脂を
層状に被着せしめるとともに、これを硬化せしめて、上
記亜鉛缶および封口体に液密的に密着した合成樹脂被覆
層を形成したことを特做とするものである。That is, in the dry battery of the present invention, a layer of uncured synthetic resin is applied to the outer peripheral surface of the zinc can and the outer periphery of the sealing body at the upper end of the zinc can, and this is cured to form the zinc can and the sealing body. A special feature is that a synthetic resin coating layer is formed in a liquid-tight manner.
次に添付図面に従って本発明を更に説明する。The invention will now be further described with reference to the accompanying drawings.
図は本発明に係る円筒形乾電池の一構成例を示すもので
、この乾電池は、開口された亜鉛缶１の内側にセパレー
タ２を介して陽極合剤３および炭素棒４が挿填されると
ともに、該亜鉛缶１の上端開口にポリエチレン等の合成
樹脂製封口体６が装着され、かつ上記封口体６の外周縁
から亜鉛缶１の外周面および底面にわたって合成樹脂被
ＩＩ！層６が形成されている。この被覆層６は、亜鉛缶
１等に対し密着性の良い樹脂例えばフェノール樹脂、ビ
ニルエステル樹１１、不飽和キリエステル樹脂、エポキ
シ樹脂等を未硬化状態にて０．１〜α５ｗ１Ｍ程度の均
一な層状に被着せしめ、かつこれを硬化せしめることに
よって形成されたものである。そして、この被覆層６を
形成したうえで、外装用のメタルジャケラ）７が嵌装さ
れておシ、その上端を封ロ体６上面に配された金属封帽
８の外周縁に締着するとともに、その下端をバッキング
９を介して亜鉛缶１下面の陰極端子板１ｏ外周縁に締着
しである。The figure shows an example of the configuration of a cylindrical dry cell according to the present invention, in which an anode mixture 3 and a carbon rod 4 are inserted into an open zinc can 1 with a separator 2 interposed therebetween. A sealing body 6 made of a synthetic resin such as polyethylene is attached to the upper opening of the zinc can 1, and a synthetic resin covering II! Layer 6 is formed. This coating layer 6 is made of a resin with good adhesion to the zinc can 1, etc., such as phenol resin, vinyl ester resin 11, unsaturated kyrie ester resin, epoxy resin, etc., in an uncured state with a uniform thickness of about 0.1 to α5w1M. It is formed by applying layers and curing them. After this coating layer 6 is formed, an exterior metal jacket 7 is fitted and its upper end is fastened to the outer periphery of a metal sealing cap 8 placed on the top surface of the sealing body 6. At the same time, its lower end is fastened to the outer peripheral edge of the cathode terminal plate 1o on the lower surface of the zinc can 1 via the backing 9.
尚、１１は炭素棒今の上端に嵌着された陽極端子、１２
はつげ紙、１８はその上面に充填されたピッチ等の封口
剤を示している。In addition, 11 is an anode terminal fitted to the upper end of the carbon rod, 12
The box paper 18 indicates a sealing agent such as pitch filled on the upper surface thereof.
上記の如く構成された乾電池においては、封口体外周縁
から亜鉛缶１外周面を連続して覆っている合成ｗ１１被
覆層６が、従来の熱収縮性樹脂チューブによるものと異
なシ、亜鉛缶１および封口体６の表面に液密的に完全に
密着して形成される。従って、放電の進行によシ亜鉛缶
１に穴があいた場合や、あるいは振動衝撃等によシ封ロ
体６と亜鋭缶１との当接部に隙間を生じた場合でも、従
来のように合成樹脂被覆！ｆＩｉＢ内を電解液が移動す
ることはできず、その外部への漏出が完全に阻止される
のである。また、放電の進行によシ亜鉛缶１が消耗し、
その機械的強度が低下するが、上記合成ｔＭ＆被覆層６
の剛性によってメタルジャケット１の締付力の低下を抑
制でき、この点からも耐漏液性能が向上するものである
。In the dry battery configured as described above, the synthetic W11 coating layer 6 that continuously covers the outer circumferential surface of the zinc can 1 from the outer periphery of the sealing body is different from that made of a conventional heat-shrinkable resin tube. It is formed in complete liquid-tight contact with the surface of the sealing body 6. Therefore, even if a hole is formed in the zinc can 1 due to the progress of electrical discharge, or if a gap is created at the contact area between the sealing body 6 and the sub-sharp can 1 due to vibration shock, etc., the conventional Synthetic resin coating! The electrolyte cannot move within fIiB, and its leakage to the outside is completely prevented. In addition, as the discharge progresses, the zinc can 1 is consumed.
Although its mechanical strength decreases, the synthetic tM & coating layer 6
The rigidity of the metal jacket 1 can suppress a decrease in the tightening force of the metal jacket 1, and this also improves the leakage resistance.
以下に本発明の具体的実施例を説明する。Specific examples of the present invention will be described below.
なお本発明は以下の実施例に制約されるものでない。Note that the present invention is not limited to the following examples.
実施例１゜
電解液組成塩化亜鉛１６重量％
塩化アンモニウム７重量襲
純 水１８重量％
の塩化亜鉛系円筒形乾電池（単１形）における陰極亜鉛
缶１の被覆材として、未硬化状態のフェノール樹脂を、
亜鉛缶１および封口体６の表面に０．１〜０．５Ｍ程ざ
の均一な層状に被着させた後に、これをその１１硬化さ
せて合成樹脂被覆Ｊ＆ ６を形成した。Example 1 Electrolyte composition: 16% by weight of zinc chloride, 7% by weight of ammonium chloride, 18% by weight of water. Uncured phenolic resin was used as a covering material for the cathode zinc can 1 in a zinc chloride-based cylindrical dry cell (AA type). of,
After coating the surfaces of the zinc can 1 and the closure body 6 in a uniform layer with a thickness of 0.1 to 0.5M, this was cured to form a synthetic resin coating J&6.
実施例１
電解液組成 塩 化 亜 鉛 ２２重量％埴塩化ンモニ
ウム ６重量％
純 水 １３重量％
の塩化亜鉛系円筒形乾電池（単１形）における陰極亜鉛
缶１の被覆材として、未硬化状態のビニルエステル樹脂
を用い、実施例１．と同一の要領で合成樹脂被覆層６を
形成した。Example 1 Electrolyte composition Zinc chloride 22% by weight Ammonium chloride 6% by weight Pure water 13% by weight An uncured electrolyte was used as a coating material for the cathode zinc can 1 in a zinc chloride-based cylindrical dry cell (AA type). Example 1 using vinyl ester resin. A synthetic resin coating layer 6 was formed in the same manner as described above.
実施例３
電解液組成 塩 化 亜 鉛 ２５重１％塩化アンモニ
ウム ３５重量％
純 水７ｔ６重量−
の塩化亜鉛系円筒形乾電池（単１形）における陰極亜鉛
缶１の被覆材として、未硬化状態の工ｌキシａ詣を用い
、実施例Ｊ、と同一の要領で合成樹脂被覆層６を形成し
た。Example 3 Electrolyte composition Zinc chloride 25% by weight 1% Ammonium chloride 35% by weight Pure water 7 tons 6 weight - As a coating material for the cathode zinc can 1 in a zinc chloride-based cylindrical dry cell (AA type), an uncured electrolyte was used. A synthetic resin coating layer 6 was formed in the same manner as in Example J using a method of manufacturing.
次に上記実施例１．で得、た単１形乾電池Ａと従来の熱
収縮性樹脂チューブを用いて陰極亜鉛缶を被覆した電池
Ｂこの比較試験を行ったところ以下の結果を得た。Next, the above Example 1. Comparative tests were conducted on the AA dry battery A obtained in the above test and the battery B in which the cathode zinc can was covered with a conventional heat-shrinkable resin tube, and the following results were obtained.
表は各電池Ａ、Ｂを夫々１００個づつ用い、２０℃の算
器気中にて４０の負荷で連続放電させた際の３０日、６
０日および９０日後の累積漏液発生個数を示している。The table shows the results for 30 days and 6 hours when 100 of each battery A and B were continuously discharged under a load of 40 in air at 20°C.
The cumulative number of leaks after 0 days and 90 days is shown.
なお、実施例２，３による電池についても同様の試験を
行なったが、実施例と同様の結果が得られた。Incidentally, similar tests were conducted on the batteries according to Examples 2 and 3, and the same results as in the Examples were obtained.
以上の１′！、明で明らかなように、本発明による乾電
池においては、従来のものに比して放電の進行による漏
液が全く見られず、優れた耐漏液性能を得ることができ
た。More than 1′! As is clear from the graph, in the dry cell according to the present invention, no liquid leakage due to progress of discharge was observed compared to the conventional dry cell, and excellent liquid leakage resistance performance could be obtained.
図は本発明を適用した円筒形乾電池の一実施例を示す縦
にｉ面図である。
１・・・亜鉛缶
２・−セパレータ
３・・・陽極合剤
４−・炭素棒
６・・・封口体
６・−合成樹脂被覆層
７・・・メタルジャケット
８−金属封帽
９１０．バッキング
１０・・・陰極端子板
特許用１人 富士電気化学株式金社
代理人 弁理士 −色 健 輔The figure is a vertical i-plane view showing an embodiment of a cylindrical dry battery to which the present invention is applied. 1... Zinc can 2 - Separator 3 - Anode mixture 4 - Carbon rod 6 - Sealing body 6 - Synthetic resin coating layer 7 - Metal jacket 8 - Metal sealing cap 910. Backing 10...For cathode terminal plate patent 1 person Fuji Electrochemical Co., Ltd. Kinsha agent Patent attorney - Kensuke Iro
Claims (1)
周縁に、未硬化状態の合成樹脂を層状に被着せしめると
ともに、これを硬化せしめて、上記亜鉛缶および封口体
に液密的に密着した合成樹脂被覆層を形成したことを特
徴とする乾電池。(1) A layer of uncured synthetic resin is applied to the outer peripheral surface of the zinc can and the outer periphery of the sealing body at the upper end of the zinc can, and this is cured to form a liquid-tight seal on the zinc can and the sealing body. A dry battery characterized by forming a synthetic resin coating layer in close contact with the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56179650A JPS5882457A (en) | 1981-11-11 | 1981-11-11 | Dry cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56179650A JPS5882457A (en) | 1981-11-11 | 1981-11-11 | Dry cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5882457A true JPS5882457A (en) | 1983-05-18 |
Family
ID=16069475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56179650A Pending JPS5882457A (en) | 1981-11-11 | 1981-11-11 | Dry cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5882457A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2623333A1 (en) * | 1987-11-17 | 1989-05-19 | Cis Cie Internale Services | Dry cell including a zinc cup covered with an adhesive material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4916824A (en) * | 1972-06-09 | 1974-02-14 |
-
1981
- 1981-11-11 JP JP56179650A patent/JPS5882457A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4916824A (en) * | 1972-06-09 | 1974-02-14 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2623333A1 (en) * | 1987-11-17 | 1989-05-19 | Cis Cie Internale Services | Dry cell including a zinc cup covered with an adhesive material |
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