JPS61290657A - Zinc alkaline battery - Google Patents
Zinc alkaline batteryInfo
- Publication number
- JPS61290657A JPS61290657A JP60131642A JP13164285A JPS61290657A JP S61290657 A JPS61290657 A JP S61290657A JP 60131642 A JP60131642 A JP 60131642A JP 13164285 A JP13164285 A JP 13164285A JP S61290657 A JPS61290657 A JP S61290657A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- zinc
- cobalt
- calcium
- negative electrode
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/42—Alloys based on zinc
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の分野）
本発明は亜鉛アルカリ電池に関し、詳しくはタリウムと
コバルトとカルシウム、ストロンチウム、マグネシウム
より選ばれる１種以上を特定範囲で含有した亜鉛合金を
そのまま、もしくは汞化して電池用負極活物質として用
いた亜鉛アルカリ電池に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of the Invention) The present invention relates to a zinc-alkaline battery, and more specifically, a zinc alloy containing one or more selected from thallium, cobalt, calcium, strontium, and magnesium within a specific range can be used as is or as a battery. This invention relates to a zinc-alkaline battery which is used as a negative electrode active material for batteries.
（発明の背景）
亜鉛を負極活物質として用いたアルカリ電池等において
は、水酸化カリウム水溶液等の強アルカリ性電解液を用
いるため、電池を密閉しなければならない。この電池の
密閉は電池の小型化を図る際には特に重要であるが、同
時に電池保存中の亜鉛の腐食により発生する水素ガスを
閉じ込めることになる。従って長期保存中に電池内部の
ガス圧が高まり、密閉が完全なほど爆発等の危険が伴な
う。(Background of the Invention) In alkaline batteries and the like that use zinc as a negative electrode active material, the batteries must be sealed tightly because a strong alkaline electrolyte such as an aqueous potassium hydroxide solution is used. This sealing of the battery is particularly important when attempting to miniaturize the battery, but it also traps hydrogen gas generated due to corrosion of zinc during battery storage. Therefore, during long-term storage, the gas pressure inside the battery increases, and the more completely the battery is sealed, the greater the risk of explosion.
その対策として、負極活物質である亜鉛の腐食を防止し
て、電池内部の水素ガス発生を少なくすることが研究さ
れ、水銀の水素過電圧を利用した汞化亜鉛を負極活物質
として用いることが専ら行なわれている。このため、今
日市販されているアルカリ電池の負極活物質は５〜１０
重量％程度の多量の水銀を含有しており、社会的ニーズ
として、より低水銀のもの、あるいは無水銀の電池の開
発が強く期待されるようになってきた。As a countermeasure, research has been conducted to prevent corrosion of zinc, which is an active material for the negative electrode, and to reduce the generation of hydrogen gas inside the battery. It is being done. For this reason, the negative electrode active material of alkaline batteries commercially available today is 5 to 10
It contains a large amount of mercury, on the order of % by weight, and as a social need, there are strong expectations for the development of lower mercury or mercury-free batteries.
そこで、電池内の水銀含有量を低減させるべく、亜鉛に
各種金属を添加した亜鉛合金粉末に関する提案が種々な
されている。例えば、亜鉛に鉛を添加した亜鉛合金粉末
、あるいは本発明者等による亜鉛に鉛とインジウムを添
加した亜鉛合金粉末（特開昭５８−１８１２６６号公報
）等がある。しかし、これらの亜鉛合金粉末はある程度
のガス発生抑制効果を奏するが、まだ十分とは言えない
。Therefore, various proposals have been made regarding zinc alloy powders in which various metals are added to zinc in order to reduce the mercury content in batteries. For example, there is a zinc alloy powder made by adding lead to zinc, or a zinc alloy powder made by the present inventors by adding lead and indium to zinc (Japanese Unexamined Patent Publication No. 181266/1983). However, although these zinc alloy powders have a certain degree of gas generation suppressing effect, it is still not sufficient.
このように、負極活物質である亜鉛合金粉末を低汞化と
しつつ、水素ガス発生量を低減し、しかも電池性能であ
る放電性能を高い水準に維持する電池は未だ得られてい
ない。As described above, a battery has not yet been obtained in which the zinc alloy powder, which is the negative electrode active material, has a low resistance, reduces the amount of hydrogen gas generated, and maintains the discharge performance, which is the battery performance, at a high level.
（発明の目的）
本発明はかかる現状に鑑み、水銀の含有率を著しく゛減
少させつつ、水素ガス発生を抑制し、しかも放電性能を
高い水準に維持する負極活物質を用いた亜鉛アルカリ電
池を提供することを目的とする。(Object of the Invention) In view of the current situation, the present invention provides a zinc-alkaline battery using a negative electrode active material that significantly reduces the mercury content, suppresses hydrogen gas generation, and maintains discharge performance at a high level. The purpose is to provide
（発明の経緯）
本発明者らはこの目的に沿って鋭意研究の結果、亜鉛か
らなる負極活物質において、タリウムとコバルトとカル
シウム、ストロンチウム、マグネシウムより選ばれる１
種以上を特定範囲のｍ添加することにより、これら添加
元素の相乗的な効果によって、従来の低汞化した亜鉛合
金粉末よりも更に水素ガス発生ｍを低下させ、しかも放
電性能に優れた亜鉛アルカリ電池が得られることを見出
し本発明に到達した。(Background of the invention) As a result of intensive research in line with this purpose, the present inventors have found that in a negative electrode active material made of zinc, 1 selected from thallium, cobalt, calcium, strontium, and magnesium is used.
The synergistic effect of these additive elements allows the hydrogen gas generation m to be lowered even more than the conventional low-strength zinc alloy powder, and the zinc-alkali powder has excellent discharge performance. The inventors discovered that a battery could be obtained and arrived at the present invention.
（発明の構成）
すなわち本発明はタリウムを０．０１〜０．５重量％、
コバルトを０．０１〜ｏ、ｓ重量％、カルシウム、スト
ロンチウム、マグネシウムより選ばれる１種以上を合計
０．００５〜０．５重量％含有する亜鉛合金を負極活物
質として用いたことを特徴とする亜鉛アルカリ電池にあ
る。(Structure of the invention) That is, the present invention contains thallium in an amount of 0.01 to 0.5% by weight,
A zinc alloy containing 0.01 to 0.s of cobalt and a total of 0.005 to 0.5 of one or more selected from calcium, strontium, and magnesium as a negative electrode active material. Found in zinc alkaline batteries.
本発明において、タリウムとコバルトとカルシウム、ス
トロンチウム、マグネシウムより選、ばれる１種以上と
を特定量添加した亜鉛合金は、そのまま負極活物質とし
て用いるか、亜鉛合金を汞化した後に負極活物質として
用いる。汞化する場合の水銀含有率は、従来の負極活物
質の水銀含有率よりも少ない量、すなわち５．０重量％
未満であるが、より汞化率を低（し、低公害性を考慮す
ると３．０重量％以下である。また、１．０重量％前後
またはそれ以下の少量であってもガス発生を抑制するこ
とが可能である。特に、排気機構を備えた空気電池や水
素吸収機構を備えた亜鉛アルカリ電池等においては、水
素ガスの発生許容量は比較的大きいので、このような電
池に本発明を適用する場合は、１．０重量％以下の低汞
化率または無汞化の亜鉛合金が負極活物質として好まし
く用いられる。In the present invention, a zinc alloy to which specific amounts of thallium, cobalt, and one or more selected from calcium, strontium, and magnesium are added is used as a negative electrode active material as it is, or used as a negative electrode active material after the zinc alloy is made into a starch. . The mercury content in the case of oxidation is smaller than the mercury content of conventional negative electrode active materials, that is, 5.0% by weight.
However, it has a lower oxidation rate (3.0% by weight or less considering low pollution properties.Also, even if it is a small amount around 1.0% by weight or less, gas generation is suppressed. In particular, in air batteries equipped with an exhaust mechanism, zinc-alkaline batteries equipped with a hydrogen absorption mechanism, etc., the permissible amount of hydrogen gas generated is relatively large, so the present invention can be applied to such batteries. When applied, a zinc alloy with a low or non-grading rate of 1.0% by weight or less is preferably used as the negative electrode active material.
この負極活物質に用いられる亜鉛合金のタリウムの含有
率は０．０１〜０．５重量％、コバルトの含有率は０．
０１〜０．５重量％、カルシウム、ストロンチウム、マ
グネシウムより選ばれる１種以上の含有率は０．００５
〜０．５重役％と少量で添加効果が発揮される。タリウ
ムとコバルトとカルシウム、ストロンチウム、マグネシ
ウムより選ばれる１種以上の含有率がそれぞれ下限未満
では本発明の効果が得られず、上限を越えると、不純物
を含有した亜鉛のように、自己放電が進み、ガス発生量
ｌ１−１および放電性能にとって良好な結果が得られな
い。The thallium content of the zinc alloy used in this negative electrode active material is 0.01 to 0.5% by weight, and the cobalt content is 0.01 to 0.5% by weight.
01 to 0.5% by weight, the content of one or more selected from calcium, strontium, and magnesium is 0.005%
The effect of addition is exhibited at a small amount of ~0.5 executive percent. If the content of one or more selected from thallium, cobalt, calcium, strontium, and magnesium is less than the lower limit, the effect of the present invention cannot be obtained, and if it exceeds the upper limit, self-discharge progresses as in the case of zinc containing impurities. , good results cannot be obtained in terms of gas generation amount l1-1 and discharge performance.
なお、カルシウム、ストロンチウム、マグネシウムより
選ばれる１種以上の含有率はｏ、ｏｏｓ〜０．２重量％
の範囲が特に好ましく、０．２重量％を越えた場合には
それほどの含有効果は見られない。The content of one or more selected from calcium, strontium, and magnesium is o, oos to 0.2% by weight.
It is particularly preferable that the content exceeds 0.2% by weight, and no significant effects are observed.
これら各添加元素の作用効果は充分に解明されていない
が、推定するに、亜鉛合金中に含まれているタリウムは
水素過電圧を＾める作用を有し、コバルトはそれ自体耐
食性のある金属であることは知られているが、亜鉛と溶
体化した場合にも局部腐食反応の抑制に役立つと考えら
れる。また、カルシウム、ストロンチウム、マグネシウ
ムは亜鉛合金表面を平滑化させる効果があり、これによ
って反応表面積を減少させ、耐食性の向上に役立つと考
えられる。Although the effects of each of these additive elements have not been fully elucidated, it is estimated that thallium contained in zinc alloy has the effect of reducing hydrogen overvoltage, and cobalt itself is a corrosion-resistant metal. Although it is known that zinc exists, it is thought that it also helps to suppress local corrosion reactions when it is dissolved in zinc. In addition, calcium, strontium, and magnesium have the effect of smoothing the surface of the zinc alloy, which is thought to reduce the reaction surface area and help improve corrosion resistance.
本発明は、これら各作用の相乗効果により、放電特性を
劣化させることなく、耐食性のよい亜鉛合金が得られた
ものである。In the present invention, due to the synergistic effect of these respective actions, a zinc alloy with good corrosion resistance is obtained without deteriorating the discharge characteristics.
このように本発明の亜鉛アルカリ電池は、電解液に苛性
カリ、苛性ソーダ等を特徴とする特許カリ水溶液を用い
、負極活物質に上記した亜鉛合金または汞化した亜鉛合
金、正極活物質に二酸化マンガン、酸化銀、酸素等を用
いることにより得られる。−
（実施例の説明）
以下、実施例および比較例に基づいて本発明を具体的に
説明する。As described above, the zinc-alkaline battery of the present invention uses a patented potassium aqueous solution characterized by caustic potash, caustic soda, etc. as the electrolyte, the above-mentioned zinc alloy or aqueous zinc alloy as the negative electrode active material, and manganese dioxide, manganese dioxide, and positive electrode active material. Obtained by using silver oxide, oxygen, etc. - (Description of Examples) Hereinafter, the present invention will be specifically described based on Examples and Comparative Examples.
友薯例１〜１３および １〜１４
純度９９，９９７％以上の亜鉛地金を約５００℃で溶融
し、これに第１表に示すごとくタリウム、コバルト、カ
ルシウムの含有率がそれぞれ０．０５重量％となるよう
に添加して亜鉛合金を作成し、これを高圧アルゴンガス
（噴出圧５Ａｉｇ／ｌｉ）を使って粉体化した。次に水
酸化カリウム１０％のアルカリ性溶液中にて上記粉末に
１．０重量％になるように水銀を添加して、汞化処理を
行ない亜鉛合金粉末（実施例１）を得た。Examples 1 to 13 and 1 to 14 A zinc ingot with a purity of 99,997% or more is melted at about 500°C, and the content of thallium, cobalt, and calcium is 0.05 weight each as shown in Table 1. % to create a zinc alloy, which was pulverized using high-pressure argon gas (ejection pressure: 5 Aig/li). Next, mercury was added to the above powder to give a concentration of 1.0% by weight in an alkaline solution containing 10% potassium hydroxide, and a hydrochloric treatment was performed to obtain a zinc alloy powder (Example 1).
また、第１表に示すごとく、下記の組成でそれぞれ、
１）２９９９６０．０５重量％、コバルト０．０５垂量
％、ストロンチウム０．０５重量％（実施例２）２）：
タリウムＯ，Ｏ’５重量％、コバルト０，０５重量％、
マグネシウム０．０５重量％（実施例３）、３）：タリ
ウム０．０１重量％、コバルトｏ、ｏｉ重量％、カルシ
ウムｏ、ｏｏｓ重量％（実施例４）、４）：タリウム０
．０１重量％、コバルト０．０１重量％、ストロンチウ
ムｏ、ｏｏｓ重量％（実施例５）５）：タリウム０．０
１重量％、コバルト０．旧重量％、マグネシウムｏ、ｏ
ｏｓ重漫％（実施例６）、６）７９９９６０．５重量％
、コバルト０．５重量％、カルシウム０．２重量％（実
施！７）、７）７９９９６０．５重量％、コバルト０．
５重量％、ストロンチウム０．２重Ｍ％（実施例８）、
８）７９９９６０．５重量％、コバルト０．５重量％、
マグネシウム０．２重量％（実施例９）、９）７９９９
６０．５重量％、コバルト０．５重口％、カルシウム０
．２型理％、ストロンチウム０．２重量％、マグネシウ
ム０．１重量％（実施例１０）、１０）：タリウム０．
５重口％、コバルト０．５重量％、カルシウムｏ、ｓ１
１％（実施例１１）、１１）７９９９６０．５重量％、
コバルト０．５重量％、ストロンチウム０．５重量％（
実施例１２）、１２）７９９９６０．５重量％、コバル
ト０．５重量％、マグネシウム０．５重量％（実施例１
３）、・１３）２９９９６０．０５重量％（比較例１）
、１４）２９９９６０．０５重量％、コバルト０．０５
重１％（比較例２）、
１５）２９９９６０．０５重量％、カルシウム０．０５
重量％（比較例３）、
１６）：タリウムｏ、ｏｏｓ重量％、コバルト０．０５
重量％、カルシウム０．０５重量％（比較例４）、１７
）：タリウム１．０重量％、コバルト０．０５９重％、
カルシウム０．０５重量％（比較例５）、１８）２９９
９６０．０５重量％、コバルトｏ、ｏｏｓ重量％、カル
シウムＯ，ＯＳ重量％（比較例６）、１９）２９９９６
０．０５重量％、コバルト １．０重量％、カルシウム
０．０５ 重量％（比較例７）、２０）２９９９６０．
０５重量％、コバルト０．０５重量％、カルシウム０．
００１重量％（比較例８）、２１）２９９９６０．０５
重量％、コバルト０．０５垂量％、カルシウム１．０重
量％（比較例９）、２２）２９９９６０．０５重量％、
コバルト０．０５重量％、ストロンチウム０．００１重
量％（比較例１０）２３）２９９９６０．０５重量％、
コバルト０．０５重１％、マグネシウム０．００１！！
量％（比較例１１）、２４）２９９９６０．０５重量％
、コバルト０．０５重量％、ストロンチウム１．０重量
％（比較例１２）、２５）：タリウム０．０５重量％、
コバルト０．０５重間％、マグネシウム１．０重量％（
比較例１３）、２６）２９９９６０．０５重量％、コバ
ルト０．０５重量％、カルシウム０．４重回％、ストロ
ンチウム０．３重」％、マグネシウム０．３重量％（比
較例１４）からなる亜鉛合金をそれぞれ作成し、これを
前記と同様な方法で粉体化し、汞化処理を行なって水銀
含有率が１．０重量％の亜鉛合金粉末（実施例２〜１３
および比較例１〜１４）を得た。In addition, as shown in Table 1, the following compositions were obtained: 1) 299960.05% by weight, 0.05% cobalt, 0.05% strontium (Example 2) 2):
Thallium O, O'5% by weight, cobalt 0.05% by weight,
Magnesium 0.05% by weight (Example 3), 3): thallium 0.01% by weight, cobalt o, oi weight%, calcium o, oos weight% (example 4), 4): thallium 0
．． 01% by weight, cobalt 0.01% by weight, strontium o, oos% by weight (Example 5) 5): thallium 0.0
1% by weight, cobalt 0. Old weight%, magnesium o, o
os weight% (Example 6), 6) 799960.5% by weight
, cobalt 0.5% by weight, calcium 0.2% by weight (practice! 7), 7) 799960.5% by weight, cobalt 0.
5% by weight, strontium 0.2% by weight (Example 8),
8) 799960.5% by weight, cobalt 0.5% by weight,
Magnesium 0.2% by weight (Example 9), 9) 7999
60.5% by weight, 0.5% by weight of cobalt, 0% calcium
．． 2% by weight, 0.2% by weight of strontium, 0.1% by weight of magnesium (Example 10), 10): Thallium 0.
5% by weight, 0.5% by weight of cobalt, calcium o, s1
1% (Example 11), 11) 799960.5% by weight,
0.5% by weight of cobalt, 0.5% by weight of strontium (
Example 12), 12) 799960.5% by weight, cobalt 0.5% by weight, magnesium 0.5% by weight (Example 1
3), ・13) 299960.05% by weight (Comparative Example 1)
, 14) 299960.05% by weight, cobalt 0.05
Weight 1% (Comparative Example 2), 15) 299960.05 weight%, Calcium 0.05
Weight% (Comparative Example 3), 16): thallium o, oos weight%, cobalt 0.05
% by weight, calcium 0.05% by weight (Comparative Example 4), 17
): 1.0% by weight of thallium, 0.059% by weight of cobalt,
Calcium 0.05% by weight (Comparative Example 5), 18) 299
960.05 wt%, cobalt O, oos wt%, calcium O, OS wt% (Comparative Example 6), 19) 29996
0.05% by weight, cobalt 1.0% by weight, calcium 0.05% by weight (Comparative Example 7), 20) 299960.
0.05% by weight, cobalt 0.05% by weight, calcium 0.05% by weight.
001% by weight (Comparative Example 8), 21) 299960.05
% by weight, 0.05% by weight of cobalt, 1.0% by weight of calcium (Comparative Example 9), 22) 299960.05% by weight,
Cobalt 0.05% by weight, Strontium 0.001% by weight (Comparative Example 10) 23) 299960.05% by weight,
Cobalt 0.05% by weight, magnesium 0.001! !
Amount% (Comparative Example 11), 24) 299960.05% by weight
, cobalt 0.05% by weight, strontium 1.0% by weight (Comparative Example 12), 25): thallium 0.05% by weight,
0.05% by weight of cobalt, 1.0% by weight of magnesium (
Comparative Examples 13), 26) Zinc consisting of 299960.05% by weight, 0.05% by weight of cobalt, 0.4% by weight of calcium, 0.3% by weight of strontium, and 0.3% by weight of magnesium (Comparative Example 14) Each alloy was prepared, powdered in the same manner as described above, and subjected to a filtration treatment to produce zinc alloy powder with a mercury content of 1.0% by weight (Examples 2 to 13).
and Comparative Examples 1 to 14) were obtained.
このようにして得られた亜鉛合金粉末を使って水素ガス
発生試験を行ない、その結果を第１表に示す。なお、ガ
ス発生試験は、電解液として濃度４０重間％の水酸化カ
リウム水溶液に酸化亜鉛を飽和させたものを５ｍ用い、
亜鉛合金粉末を１０ｇを用いて４５℃で５０日間のガス
発生［１（ｔｄｌｏ ）を測定した。A hydrogen gas generation test was conducted using the zinc alloy powder thus obtained, and the results are shown in Table 1. In the gas generation test, 5 m of a potassium hydroxide aqueous solution with a concentration of 40% by weight saturated with zinc oxide was used as the electrolyte.
Gas evolution [1 (tdlo)] was measured using 10 g of zinc alloy powder at 45° C. for 50 days.
また、これらの亜鉛合金粉末を負極活物質として第１図
に示すアルカリマンガン電池を用いて電池性能を評価し
た。第１図のアルカリマンガン電池は、正極缶１、正極
２、セパレーター３、亜鉛合金粉末をカルボキシメチル
セルロースでゲル化した負極４、負極集電体５、ゴムパ
ツキン６、押さえ板７で構成されている。このアルカリ
マンガン電池を用いて放電負荷４Ω、２０℃の放電条件
により終止電圧０．９Ｖまでの放電持続時間を測定し、
従来の負極活物質を用いた後述する比較例１５の測定値
を１００どした指数で示した。結果を第１表に示す。Further, battery performance was evaluated using an alkaline manganese battery shown in FIG. 1 using these zinc alloy powders as a negative electrode active material. The alkaline manganese battery shown in FIG. 1 is composed of a positive electrode can 1, a positive electrode 2, a separator 3, a negative electrode 4 made of zinc alloy powder gelled with carboxymethyl cellulose, a negative electrode current collector 5, a rubber packing 6, and a pressing plate 7. Using this alkaline manganese battery, we measured the discharge duration to a final voltage of 0.9V under discharge conditions of 4Ω discharge load and 20°C.
The measured values of Comparative Example 15, which will be described later, using a conventional negative electrode active material were multiplied by 100 and shown as an index. The results are shown in Table 1.
瓜屡」１立
実施例１と同様の方法で亜鉛に水銀を５．０重量％添加
した従来より用いられている汞化亜鉛合金粉末（比較例
１５）を得た。これを実施例１と同様の方法で水素ガス
発生試験と電池性能試験を行ない、その結果を第１表に
示した。A conventionally used zinc alloy powder (Comparative Example 15) in which 5.0% by weight of mercury was added to zinc was obtained in the same manner as in Example 1. This was subjected to a hydrogen gas generation test and a battery performance test in the same manner as in Example 1, and the results are shown in Table 1.
第１表に示されるごとく、亜鉛にタリウムとコバルトと
カルシウム、ストロンチウム、マグネシウムより選ばれ
る１種以上を特定量添加して汞化させた汞化亜鉛合金粉
末を負極活物質に用いた実施例１〜１３は、比較例１〜
１４や亜鉛に水銀のみを添加した従来より用いられてい
る汞化亜鉛合金粉末を負極活物質に用いた比較例１５に
比べて、水素ガス発生抑制効果が大きく、放電性能も浸
れていることがわかる。As shown in Table 1, Example 1 in which a zinc oxide alloy powder obtained by adding a specific amount of one or more selected from thallium, cobalt, calcium, strontium, and magnesium to zinc to form a oxide was used as a negative electrode active material. ~13 is Comparative Example 1~
Compared to Comparative Example 15, in which the negative electrode active material was a conventionally used zinc chloride alloy powder in which only mercury was added to zinc and Zinc, the hydrogen gas generation suppressing effect was greater, and the discharge performance was also improved. Recognize.
（発明の効果）
以上説明のごとく、タリウムとコバルトとカルシウム、
ストロンチウム、マグネシウムより選ばれる１種以上を
特定範囲で含有した亜鉛合金をそのまま、もしくは汞化
して負極活物質として用いた本発明の亜鉛アルカリ電池
は、水素ガス発生率を抑制しつつ、電池性能を向上させ
ることが可能であり、また水銀が低含有率もしくは含有
しないことから、社会的ニーズにも沿ったものである。(Effect of the invention) As explained above, thallium, cobalt, calcium,
The zinc-alkaline battery of the present invention uses a zinc alloy containing one or more selected from strontium and magnesium in a specific range as a negative electrode active material either as it is or after it has been made into a hydrogen atom. It also meets social needs because it has a low or no mercury content.
従って、本発明の亜鉛アルｈり電池は広範な用途に使用
可能である。Therefore, the zinc-aluminum battery of the present invention can be used in a wide range of applications.
第１図は本発明に係わるアルカリマンガン電池の原理図
を示す。
１：正極缶、２：正極、３：ヒバレータ−，４：負極、
５：負極集電体、６：ゴムパツキン、７：押さえ板。FIG. 1 shows a principle diagram of an alkaline manganese battery according to the present invention. 1: Positive electrode can, 2: Positive electrode, 3: Hibarator, 4: Negative electrode,
5: Negative electrode current collector, 6: Rubber packing, 7: Pressing plate.
Claims (1)
．０１〜０．５重量％、カルシウム、ストロンチウム、
マグネシウムより選ばれる１種以上を合計０．００５〜
０．５重量％含有する亜鉛合金を負極活物質として用い
たことを特徴とする亜鉛アルカリ電池。 ２、前記亜鉛合金が汞化されている前記特許請求の範囲
第１項記載の亜鉛アルカリ電池。[Claims] 1. 0.01 to 0.5% by weight of thallium, 0% of cobalt
．． 01-0.5% by weight, calcium, strontium,
One or more types selected from magnesium in total of 0.005~
A zinc alkaline battery characterized in that a zinc alloy containing 0.5% by weight is used as a negative electrode active material. 2. The zinc-alkaline battery according to claim 1, wherein the zinc alloy is made of aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60131642A JPS61290657A (en) | 1985-06-19 | 1985-06-19 | Zinc alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60131642A JPS61290657A (en) | 1985-06-19 | 1985-06-19 | Zinc alkaline battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61290657A true JPS61290657A (en) | 1986-12-20 |
Family
ID=15062827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60131642A Pending JPS61290657A (en) | 1985-06-19 | 1985-06-19 | Zinc alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61290657A (en) |
-
1985
- 1985-06-19 JP JP60131642A patent/JPS61290657A/en active Pending
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