JPS5810820B2 - alkaline dench - Google Patents
alkaline denchInfo
- Publication number
- JPS5810820B2 JPS5810820B2 JP48010569A JP1056973A JPS5810820B2 JP S5810820 B2 JPS5810820 B2 JP S5810820B2 JP 48010569 A JP48010569 A JP 48010569A JP 1056973 A JP1056973 A JP 1056973A JP S5810820 B2 JPS5810820 B2 JP S5810820B2
- Authority
- JP
- Japan
- Prior art keywords
- zinc
- battery
- lead
- mercury
- active material
- 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
Classifications
-
- Y02E60/12—
Landscapes
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
【発明の詳細な説明】
亜鉛を陰極活物質として用いる密閉型アルカリ電池例え
ばアルカリマンガン電池、空気−亜鉛電池、ニッケルー
亜鉛電池などの一次電池あるいは二次電池において、亜
鉛の化学腐食によるガスの発生を抑制するために亜鉛を
アマルガム化している。Detailed Description of the Invention In a sealed alkaline battery using zinc as a cathode active material, such as an alkaline manganese battery, an air-zinc battery, a nickel-zinc battery, or other primary or secondary battery, gas generation due to chemical corrosion of zinc can be prevented. Zinc is amalgamated to suppress it.
しかしアマルガム化に使用される水銀は高価であるうえ
、極めて有毒であって作業者が水銀中毒を起こす危険性
があるので、アマルガム化ニ代りうる亜鉛の防食方法が
望まれている。However, the mercury used in amalgamation is not only expensive but also extremely toxic and poses a risk of mercury poisoning to workers, so there is a need for a zinc corrosion prevention method that can replace amalgamation.
本発明は水銀を全く含まない密閉型アルカリ電池用陰極
活物質を得ることを目的とする。An object of the present invention is to obtain a cathode active material for a sealed alkaline battery that does not contain any mercury.
本発明はこのような要望に沿うべき種々検討した結果、
水銀を含まず鉛を４重量％以上含有した亜鉛と鉛の合金
を陰極活物質として用いることにより、所期の目的を達
成したものである。The present invention was developed as a result of various studies to meet these demands.
The intended purpose was achieved by using a zinc-lead alloy containing 4% by weight or more of lead without mercury as the cathode active material.
すなわち鉛を亜鉛に添加して合金化することにより、亜
鉛電極の水素過電圧を上げて、亜鉛の化学腐食による水
素ガスの発生を抑制する含有率が高くなると電池の開路
電圧の低下や内部抵抗の増大をきたし、しかも鉛の含有
率が高くなると活物質としての亜鉛の量が少くなるから
、合金中における鉛の含有率は高々１０重量％程度に止
めておくとよい。In other words, by adding lead to zinc and alloying it, the hydrogen overvoltage of the zinc electrode is increased, suppressing the generation of hydrogen gas due to chemical corrosion of zinc. Moreover, as the lead content increases, the amount of zinc as an active material decreases, so it is preferable to keep the lead content in the alloy at about 10% by weight at most.
水銀を全く含まず鉛を６重量％含有した亜鉛−鉛合金を
陰極活物質として用いた本発明の密閉型アルカリマンガ
ン電池Ａと、亜鉛をアマルガム化したものを陰極活物質
として用いた従来の密閉型アルカリマンガン電池Ｂの電
池性能ならびにガス量の比較を次の表に示す。A sealed alkaline manganese battery A of the present invention using a zinc-lead alloy containing 6% by weight of lead without any mercury as the cathode active material, and a conventional sealed alkaline manganese battery A using amalgamated zinc as the cathode active material. A comparison of the battery performance and gas amount of type alkaline manganese battery B is shown in the following table.
なお試料電池の大きさはいずれもＡＭＩ型の電池であり
、表中において放電持続時間とは４Ωの負荷抵抗で連続
放電して端子電圧が０．８５Ｖになるまでの放電持続時
間を示し、ガス量とは放電持続時間内に発生したガスの
量を示すものである。The sample batteries are all AMI type batteries, and the discharge duration in the table indicates the discharge duration until the terminal voltage reaches 0.85V after continuous discharge with a load resistance of 4Ω. The amount refers to the amount of gas generated during the discharge duration.
この表から明らかなように電池Ａは電池Ｂに比べて多少
電池性能ならびにガス発生の抑制効果の点で劣るが、実
用的にはほとんど支障はない。As is clear from this table, battery A is somewhat inferior to battery B in terms of battery performance and gas generation suppressing effect, but practically there is no problem.
前述のように本発明は、鉛を４〜１０重量％含有した亜
鉛と鉛の合金にすることにより、水銀を全く含まない密
閉型アルカリ電池用亜鉛活物質とすることができ、作業
者の水銀中毒や水銀による公害問題が解消でき、さらに
製造原価も低廉になる工業的価値の大なるものである。As mentioned above, the present invention makes it possible to create a zinc active material for sealed alkaline batteries that does not contain mercury at all by forming an alloy of zinc and lead containing 4 to 10% by weight of lead, thereby reducing the mercury burden of workers. It is of great industrial value because it can solve the problems of poisoning and mercury pollution, and it can also reduce manufacturing costs.
図面は亜鉛−鉛合金中における鉛の含有率とガスの発生
量との関係を示す図である。The drawing shows the relationship between the lead content in the zinc-lead alloy and the amount of gas generated.
Claims (1)
る亜鉛活物質を用いた密閉型アルカリ電池。1. A sealed alkaline battery using a zinc active material made of an alloy of zinc and lead containing 4 to 10% by weight of lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48010569A JPS5810820B2 (en) | 1973-01-24 | 1973-01-24 | alkaline dench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48010569A JPS5810820B2 (en) | 1973-01-24 | 1973-01-24 | alkaline dench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4997224A JPS4997224A (en) | 1974-09-13 |
| JPS5810820B2 true JPS5810820B2 (en) | 1983-02-28 |
Family
ID=11753860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48010569A Expired JPS5810820B2 (en) | 1973-01-24 | 1973-01-24 | alkaline dench |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5810820B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59175557A (en) * | 1983-03-25 | 1984-10-04 | Toshiba Battery Co Ltd | Alkali cell |
| JPS60221958A (en) * | 1984-03-22 | 1985-11-06 | Toshiba Battery Co Ltd | Alkaline battery with no added mercury |
| JPS60221957A (en) * | 1984-03-22 | 1985-11-06 | Toshiba Battery Co Ltd | Alkaline battery with no added mercury |
-
1973
- 1973-01-24 JP JP48010569A patent/JPS5810820B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4997224A (en) | 1974-09-13 |
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