JPS6157655B2 - - Google Patents
Info
- Publication number
- JPS6157655B2 JPS6157655B2 JP5839177A JP5839177A JPS6157655B2 JP S6157655 B2 JPS6157655 B2 JP S6157655B2 JP 5839177 A JP5839177 A JP 5839177A JP 5839177 A JP5839177 A JP 5839177A JP S6157655 B2 JPS6157655 B2 JP S6157655B2
- Authority
- JP
- Japan
- Prior art keywords
- insulating packing
- positive electrode
- battery
- packing
- sealed alkaline
- 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
Links
- 238000012856 packing Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 7
- 229920006122 polyamide resin Polymers 0.000 claims description 5
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229920013716 polyethylene resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 229920001059 synthetic polymer Polymers 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- 229930003836 cresol Natural products 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 2
- 229910000497 Amalgam Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Primary Cells (AREA)
Description
〔産業上の利用分野〕
本発明は密封型アルカリ電池の絶縁パツキング
の改良に関し、さらに詳しくは絶縁パツキングの
表面に軟化層を設けて耐漏液性の向上と自己放電
率の減少を図つた密封型アルカリ電池に関するも
のである。
〔従来の技術〕
従来より密封型アルカリ電池の絶縁パツキング
はクロロプレンゴムで代表されるゴム系材料ポリ
アミド樹脂あるいはポリエチレン樹脂、四弗化エ
チレン樹脂、四弗化エチレン、６弗化プロピレン
等が使用されてきた。
〔発明が解決しようとする問題点〕
しかし従来の絶縁パツキングは、耐漏液性が十
分でなく、特にアルカリ電解液はいわゆる電気毛
管現象が著しいため、絶縁パツキングと負極缶あ
るいは正極缶のすき間から、かなりの高率の漏液
が発生し、端子表面を汚し接触不良を生ぜしめて
いる。さらに著しい場合、電解液が電池使用機器
の電子腕時計、カメラ等の内部を腐蝕し破損せし
め、重大な事故を招く欠点があつた。
そこで本発明は、上述した密封型アルカリ電池
の欠点を解決するため、表面に軟化層を有する絶
縁パツキングを用いて密封型アルカリ電池の漏液
を抑制することを目的としている。
〔実施例〕
以下に本発明の実施例を図面にもとづいて説明
する。第１図は本発明による電池の断面図であ
る。１は負極端子を兼ねる負極缶であり、亜鉛ア
マルガムからなる負極合剤２を含有している。３
はセパレータ及び電解液保持材である。４は正極
端子を兼ねる正極缶であり、５は正極治物質であ
る一価酸化銀と電子導電性補助剤であるグラフア
イトとを一定組成比で混合し、所定の合剤量を秤
量し加圧成形した正極合剤である。６は正極と負
極との絶縁、及び封止を兼ねる絶縁パツキングで
ある。本発明では、この絶縁パツキング６を硫
酸、塩酸、硝酸等の無機酸あるいはトリクロロエ
チレン、フエノール、ギ酸、クレゾール等の有機
溶剤中に浸漬した後、洗浄、乾燥して、絶縁パツ
キングの表面に軟化層７を設ける（第２図）。絶
縁パツキング６の材質は、従来より用いられてい
るゴム系材料、ポリアミド樹脂、ポリエチレン樹
脂、四弗化エチレン樹脂等の合成高分子物質から
選ばれる。
〔実施例 １〕
電池製造工程において、ポリアミド樹脂からな
る絶縁パツキングを、硫酸、塩酸あるいは硝酸等
の無機酸から選択される酸の１つに１〜５時間浸
漬した後、洗浄、乾燥する。臭気がなくなつたら
パツキング装着工程に供する。
上記のような実施例に基づいて表面に軟化層を
形成した絶縁パツキングを用いた本発明電池と、
表面に軟化層を形成していない絶縁パツキングを
用いた従来電池とを製造し、漏液発生率を比較し
た。この結果を第１表に示す。
[Industrial Application Field] The present invention relates to the improvement of insulating packing for sealed alkaline batteries, and more specifically, the present invention relates to improvements in insulating packing for sealed alkaline batteries, and more specifically, to improve leakage resistance and reduce self-discharge rate by providing a softening layer on the surface of the insulating packing. It concerns alkaline batteries. [Prior art] Conventionally, rubber-based materials such as polyamide resin, typified by chloroprene rubber, polyethylene resin, tetrafluoroethylene resin, tetrafluoroethylene, hexafluoropropylene, etc. have been used for the insulation packing of sealed alkaline batteries. Ta. [Problems to be Solved by the Invention] However, conventional insulating packings do not have sufficient leakage resistance, and alkaline electrolytes in particular have a significant so-called electrocapillary phenomenon. A fairly high rate of leakage occurs, contaminating the terminal surface and causing poor contact. In more severe cases, the electrolyte corrodes and damages the internal parts of electronic wristwatches, cameras, etc. that use batteries, resulting in serious accidents. Therefore, in order to solve the above-mentioned drawbacks of the sealed alkaline battery, the present invention aims to suppress leakage of the sealed alkaline battery by using an insulating packing having a softened layer on the surface. [Example] Examples of the present invention will be described below based on the drawings. FIG. 1 is a cross-sectional view of a battery according to the invention. A negative electrode can 1 also serves as a negative electrode terminal, and contains a negative electrode mixture 2 made of zinc amalgam. 3
is a separator and an electrolyte holding material. 4 is a positive electrode can that also serves as a positive electrode terminal, and 5 is a positive electrode can in which monovalent silver oxide, which is a positive electrode treatment material, and graphite, which is an electronic conductivity auxiliary agent, are mixed at a constant composition ratio, and a predetermined amount of the mixture is weighed and added. This is a pressure-molded positive electrode mixture. Reference numeral 6 denotes an insulating packing that serves to insulate and seal the positive electrode and the negative electrode. In the present invention, the insulating packing 6 is immersed in an inorganic acid such as sulfuric acid, hydrochloric acid, or nitric acid or an organic solvent such as trichloroethylene, phenol, formic acid, or cresol, and then washed and dried to form a softened layer 7 on the surface of the insulating packing. (Figure 2). The material of the insulating packing 6 is selected from conventionally used synthetic polymer materials such as rubber materials, polyamide resins, polyethylene resins, and tetrafluoroethylene resins. [Example 1] In a battery manufacturing process, an insulating packing made of polyamide resin is immersed in one of inorganic acids such as sulfuric acid, hydrochloric acid, or nitric acid for 1 to 5 hours, and then washed and dried. When the odor disappears, it is subjected to the packing installation process. A battery of the present invention using an insulating packing with a softened layer formed on the surface based on the above embodiments,
A conventional battery using insulating packing without a softening layer formed on the surface was manufactured and the leakage rate was compared. The results are shown in Table 1.
実施例１と同様に、パツキング装着工程前に、
ポリアミド樹脂からなる絶縁パツキングをトリク
ロロエチレン、フエノール、ギ酸またはクレゾー
ルから選択される有機溶剤中に0.5〜３時間浸漬
し、その後溶剤中より取り出し室温で乾燥し使用
する。このようにして、表面に軟化層を形成した
絶縁パツキングを用いた本発明電池と、軟化層を
形成しない絶縁パツキングを用いた従来電池の漏
液発生率を調べた。この結果を第２表に示す。
As in Example 1, before the packing installation process,
An insulating packing made of polyamide resin is immersed in an organic solvent selected from trichloroethylene, phenol, formic acid or cresol for 0.5 to 3 hours, and then taken out of the solvent and dried at room temperature before use. In this manner, the leakage rate was investigated for the battery of the present invention using an insulating packing with a softened layer formed on its surface and the conventional battery using an insulating packing without a softened layer. The results are shown in Table 2.
以上の様に本発明は、表面に軟化層を形成した
絶縁パツキングを用いることにより、極めて耐漏
液性に優れた密封型アルカリ電池を提供できるも
のであり、アルカリ電解液の漏液で高価な電子機
器を損傷するのを妨げるという効果がある。
As described above, the present invention can provide a sealed alkaline battery with extremely excellent leakage resistance by using an insulating packing with a softened layer formed on the surface. This has the effect of preventing equipment from being damaged.
第１図は本発明の一実施例を示す電池の半断面
図、第２図は実施例１および２に使用した絶縁パ
ツキングの部分断面図である。
１：負極缶、２：負極合剤、３：セパレータ及
び電解液保持材、４：正極缶、５：正極合剤、
６，６′：絶縁パツキング、７：軟化層。
FIG. 1 is a half sectional view of a battery showing one embodiment of the present invention, and FIG. 2 is a partial sectional view of the insulating packing used in Examples 1 and 2. 1: negative electrode can, 2: negative electrode mixture, 3: separator and electrolyte holding material, 4: positive electrode can, 5: positive electrode mixture,
6, 6': Insulating packing, 7: Softening layer.
Claims (1)
グが、表面に軟化層を有する絶縁パツキングであ
ることを特徴とする密封型アルカリ電池。 ２ 絶縁パツキングが、ゴム系材料、ポリアミド
樹脂、ポリエチレン樹脂、四沸化エチレン樹脂等
の合成高分子よりなる特許請求の範囲第１項記載
の密封型アルカリ電池。[Scope of Claims] 1. A sealed alkaline battery characterized in that the insulating packing interposed between the positive electrode can and the negative electrode can is an insulating packing having a softened layer on its surface. 2. The sealed alkaline battery according to claim 1, wherein the insulating packing is made of a synthetic polymer such as a rubber material, polyamide resin, polyethylene resin, or tetrafluoroethylene resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5839177A JPS53143937A (en) | 1977-05-20 | 1977-05-20 | Enclosed alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5839177A JPS53143937A (en) | 1977-05-20 | 1977-05-20 | Enclosed alkaline battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53143937A JPS53143937A (en) | 1978-12-14 |
| JPS6157655B2 true JPS6157655B2 (en) | 1986-12-08 |
Family
ID=13083037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5839177A Granted JPS53143937A (en) | 1977-05-20 | 1977-05-20 | Enclosed alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS53143937A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02238768A (en) * | 1989-03-10 | 1990-09-21 | Nec Corp | Sensor window for image sensor |
-
1977
- 1977-05-20 JP JP5839177A patent/JPS53143937A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02238768A (en) * | 1989-03-10 | 1990-09-21 | Nec Corp | Sensor window for image sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53143937A (en) | 1978-12-14 |
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