JPH0418673B2 - - Google Patents
Info
- Publication number
- JPH0418673B2 JPH0418673B2 JP59273756A JP27375684A JPH0418673B2 JP H0418673 B2 JPH0418673 B2 JP H0418673B2 JP 59273756 A JP59273756 A JP 59273756A JP 27375684 A JP27375684 A JP 27375684A JP H0418673 B2 JPH0418673 B2 JP H0418673B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- zinc
- indium
- bismuth
- silver
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
（発明の分野）
本発明は亜鉛アルカリ電池に関し、詳しくはイ
ンジウムとビスマスと銀、ガリウム、テルルより
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。
（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。従つて長期保存中の電池内部のガス圧
が高まり、密閉が完全なほど爆発等の危険が伴な
う。
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つてきた。
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。
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。
（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。
（発明の経緯）
本発明者らはこの目的に沿つて鋭意研究の結
果、亜鉛からなる負極活物質において、インジウ
ムとビスマスと銀、ガリウム、テルルより選ばれ
る１種以上を特定範囲の量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つて、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
量を低下させ、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。
（発明の構成）
すなわち本発明は、インジウムを0.01〜0.5重
量％、ビスマスを0.01〜0.5重量％、銀、ガリウ
ム、テルルより選ばれる１種以上を0.01〜0.5重
量％と、残部が亜鉛からな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。
本発明において、インジウムとビスマスと銀、
ガリウム、テルルより選ばれる１種以上を特定量
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、より汞化率を低く
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つ
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。
この負極活物質に用いられる亜鉛合金のインジ
ウムの含有率は0.01〜0.5重量％、ビスマスは0.01
〜0.5重量％、銀、ガリウム、テルルより選ばれ
る１種以上の含有率は0.01〜0.5重量％と少量で
添加効果が発揮される。インジウムとビスマスと
銀、ガリウム、テルルより選ばれる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、ガス発生抑制および放
電性能にとつて良好な結果が得られない。
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、苛性ソーダ等を主成分とするアル
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。
実施例１〜13および比較例１〜17
純度99.997％以上の亜鉛地金を約500℃で溶融
し、これに第１表に示すごとくインジウムとビス
マスと銀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５Kg／cm2）を使つて粉体化し
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。
また、第１表に示すごとく、下記の組成でそれ
ぞれ
(1) インジウム0.05重量％、ビスマス0.05重量％
ガリウム0.05重量％（実施例２）、
(2) インジウム0.05重量％、ビスマス0.05重量
％、テルル0.05重量％（実施例３）、
(3) インジウム0.01重量％、ビスマス0.01重量
％、銀0.01重量％（実施例４）、
(4) インジウム0.01重量％、ビスマス0.01重量
％、ガリウム0.01重量％（実施例５）、
(5) インジウム0.01重量％、ビスマス0.01重量
％、テルル0.01重量％（実施例６）、
(6) インジウム0.5重量％、ビスマス0.5重量％、
銀0.5重量％（実施例７）、
(7) インジウム0.5重量％、ビスマス0.5重量％、
ガリウム0.5重量％（実施例８）、
(8) インジウム0.5重量％、ビスマス0.5重量％、
テルル0.5重量％（実施例９）、
(9) インジウム0.05重量％、ビスマス0.05重量
％、銀0.05重量％、ガリウム0.05重量％（実施
例10）、
(10) インジウム0.05重量％、ビスマス0.05重量
％、銀0.05重量％、テルル0.05重量％（実施例
11）、
(11) インジウム0.05重量％、ビスマス0.05重量
％、ガリウム0.05重量％、テルル0.05重量％
（実施例12）、
(12) インジウム0.05重量％、ビスマス0.05重量
％、銀0.05重量％、ガリウム0.05重量％、テル
ル0.05重量％（実施例13）、
(13) インジウム0.05重量％（比較例１）、
(14) インジウム0.05重量％、ビスマス0.05重量
％（比較例２）、
(15) インジウム0.05重量％、銀0.05重量％、（比
較例３）、
(16) インジウム0.05重量％、ガリウム0.05重量
％（比較例４）、
(17) インジウム0.05重量％、テルル0.05重量％
（比較例５）、
(18) ビスマス0.05重量％、銀0.05重量％（比較
例６）、
(19) ビスマム0.05重量％、テルル0.05重量％
（比較例７）、
(20) インジウム1.0重量％、ビスマス0.05重量
％、銀0.05重量％（比較例８）、
(21) インジウム0.005重量％、ビスマス0.05重量
％、銀0.05重量％（比較例９）、
(22) インジウム0.05重量％、ビスマス1.0重量
％、銀0.05重量％（比較例10）、
(23) インジウム0.05重量％、ビスマス0.005重量
％、銀0.05重量％（比較例11）、
(24) インジウム0.05重量％、ビスマス0.05重量
％、銀1.0重量％（比較例12）、
(25) インジウム0.05重量％、ビスマス0.05重量
％、銀0.005重量％（比較例13）、
(26) インジウム0.05重量％、ビスマス0.05重量
％、ガリウム1.0重量％（比較例14）、
(27) インジウム0.05重量％、ビスマス0.05重量
％、ガリウム0.005重量％（比較例15）、
(28) インジウム0.05重量％、ビスマス0.05重量
％、テルル1.0重量％（比較例16）、
(29) インジウム0.05重量％、ビスマス0.05重量
％、テルル0.005重量％（比較例17）、
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、汞化処理を行なつて水
銀含有率が1.0重量％の亜鉛合金粉体（実施例２
〜13および比較例１〜17）を得た。
このようにして得られた亜鉛合金粉体を使つて
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重量％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５mlを用い、亜鉛合金粉末を10ｇ
を用いて45℃で50日間のガス発生量（ml／ｇ）を
測定した。
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18の測
定値を100とした指数で示した。結果を第１表に
示す。
比較例 18
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18）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。
(Field of the Invention) The present invention relates to zinc-alkaline batteries, and more specifically, a zinc alloy containing indium, bismuth, and one or more selected from silver, gallium, and tellurium within a specific range is used as a negative electrode active material for batteries, either as it is or in the form of aqueous solution. This paper relates to a zinc-alkaline battery used as a battery. (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, the gas pressure inside the battery increases during long-term storage, and the more completely the battery is sealed, the more dangerous it becomes, such as explosion. 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 materials of alkaline batteries commercially available today contain a large amount of mercury, approximately 5 to 10% by weight.
There are strong expectations for the development of lower mercury or mercury-free batteries. 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 Patent Laid-Open No. 181266/1983). However, although these zinc alloy powders have a certain degree of gas generation suppressing effect, it is still not sufficient. 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. (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 mercury content, suppresses hydrogen gas generation, and maintains discharge performance at a high level. The purpose is to (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, one or more selected from indium, bismuth, silver, gallium, and tellurium is added in a specific range of amount. By this,
It was discovered that the synergistic effect of these additive elements makes it possible to obtain a zinc-alkaline battery that further reduces the amount of hydrogen gas generated than conventional low-strength zinc alloy powders and has excellent discharge performance, resulting in the present invention. Reached. (Structure of the Invention) That is, the present invention consists of 0.01 to 0.5% by weight of indium, 0.01 to 0.5% by weight of bismuth, 0.01 to 0.5% by weight of one or more selected from silver, gallium, and tellurium, and the balance being zinc. A zinc-alkaline battery characterized by using a zinc alloy as a negative electrode active material. In the present invention, indium, bismuth and silver,
A zinc alloy to which a specific amount of one or more selected from gallium and tellurium is added is used as a negative electrode active material as it is, or is used as a negative electrode active material after the zinc alloy is converted into a liquid. The mercury content when converted into water is lower than the mercury content of conventional negative electrode active materials, that is, less than 5.0% by weight, but if the mercury content is lowered and low pollution is considered, it is 3.0% by weight. It is as follows.
Further, even if the amount is as small as around 1.0% by weight or less, it is possible to suppress gas generation. In particular, in air batteries equipped with an exhaust mechanism or zinc-alkaline batteries equipped with a hydrogen absorption mechanism, the hydrogen gas generation capacity is relatively large, so when applying the present invention to such batteries, 1.0 weight Zinc alloys with a low or non-grading rate of less than 10% are preferably used as the negative electrode active material. The content of indium in the zinc alloy used in this negative electrode active material is 0.01 to 0.5% by weight, and the content of bismuth is 0.01% by weight.
-0.5% by weight, and the content of one or more selected from silver, gallium, and tellurium is as small as 0.01 to 0.5% by weight, and the effect of addition is exhibited. If the content of one or more selected from indium, bismuth, silver, gallium, and tellurium 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 suppression and discharge performance. As described above, the zinc-alkaline battery of the present invention uses an alkaline aqueous solution containing caustic potash, caustic soda, etc. as the main component as an electrolyte, the above-mentioned zinc alloy or aqueous zinc alloy as a negative electrode active material, and manganese dioxide, as a positive electrode active material, Obtained by using silver oxide, oxygen, etc. (Description of Examples) The present invention will be specifically described below based on Examples and Comparative Examples. Examples 1 to 13 and Comparative Examples 1 to 17 Zinc ingots with a purity of 99.997% or more are melted at about 500°C, and the contents of indium, bismuth, and silver are each 0.05% by weight as shown in Table 1. A zinc alloy was prepared by adding Zn as described above, and this was pulverized using high-pressure argon gas (ejection pressure: 5 kg/cm 2 ). 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). In addition, as shown in Table 1, the following compositions (1) Indium 0.05% by weight, Bismuth 0.05% by weight
Gallium 0.05% by weight (Example 2), (2) Indium 0.05% by weight, Bismuth 0.05% by weight, Tellurium 0.05% by weight (Example 3), (3) Indium 0.01% by weight, Bismuth 0.01% by weight, Silver 0.01% by weight. (Example 4), (4) Indium 0.01% by weight, Bismuth 0.01% by weight, Gallium 0.01% by weight (Example 5), (5) Indium 0.01% by weight, Bismuth 0.01% by weight, Tellurium 0.01% by weight (Example 6) ), (6) Indium 0.5% by weight, Bismuth 0.5% by weight,
0.5% by weight of silver (Example 7), (7) 0.5% by weight of indium, 0.5% by weight of bismuth,
Gallium 0.5% by weight (Example 8), (8) Indium 0.5% by weight, Bismuth 0.5% by weight,
Tellurium 0.5% by weight (Example 9), (9) Indium 0.05% by weight, Bismuth 0.05% by weight, Silver 0.05% by weight, Gallium 0.05% by weight (Example 10), (10) Indium 0.05% by weight, Bismuth 0.05% by weight. , silver 0.05% by weight, tellurium 0.05% by weight (Example
11), (11) Indium 0.05% by weight, Bismuth 0.05% by weight, Gallium 0.05% by weight, Tellurium 0.05% by weight
(Example 12), (12) Indium 0.05% by weight, Bismuth 0.05% by weight, Silver 0.05% by weight, Gallium 0.05% by weight, Tellurium 0.05% by weight (Example 13), (13) Indium 0.05% by weight (Comparative Example 1) ), (14) Indium 0.05% by weight, Bismuth 0.05% by weight (Comparative Example 2), (15) Indium 0.05% by weight, Silver 0.05% by weight, (Comparative Example 3), (16) Indium 0.05% by weight, Gallium 0.05% by weight % (Comparative Example 4), (17) Indium 0.05% by weight, Tellurium 0.05% by weight
(Comparative Example 5), (18) Bismuth 0.05% by weight, Silver 0.05% by weight (Comparative Example 6), (19) Bismum 0.05% by weight, Tellurium 0.05% by weight
(Comparative Example 7), (20) Indium 1.0% by weight, Bismuth 0.05% by weight, Silver 0.05% by weight (Comparative Example 8), (21) Indium 0.005% by weight, Bismuth 0.05% by weight, Silver 0.05% by weight (Comparative Example 9) ), (22) Indium 0.05% by weight, Bismuth 1.0% by weight, Silver 0.05% by weight (Comparative Example 10), (23) Indium 0.05% by weight, Bismuth 0.005% by weight, Silver 0.05% by weight (Comparative Example 11), (24 ) Indium 0.05% by weight, Bismuth 0.05% by weight, Silver 1.0% by weight (Comparative Example 12), (25) Indium 0.05% by weight, Bismuth 0.05% by weight, Silver 0.005% by weight (Comparative Example 13), (26) Indium 0.05% by weight %, bismuth 0.05% by weight, gallium 1.0% by weight (Comparative Example 14), (27) indium 0.05% by weight, bismuth 0.05% by weight, gallium 0.005% by weight (Comparative Example 15), (28) indium 0.05% by weight, bismuth 0.05 % by weight, tellurium 1.0% by weight (Comparative Example 16), (29) 0.05% by weight of indium, 0.05% by weight of bismuth, and 0.005% by weight of tellurium (Comparative Example 17). Zinc alloy powder with a mercury content of 1.0% by weight (Example 2)
-13 and Comparative Examples 1-17) were obtained. A hydrogen gas generation test was conducted using the zinc alloy powder thus obtained, and the results are shown in Table 1. In addition, in the gas generation test, the concentration of the electrolyte was
Using 5 ml of 40% by weight potassium hydroxide aqueous solution saturated with zinc oxide, add 10 g of zinc alloy powder.
The amount of gas generated (ml/g) was measured at 45°C for 50 days using the following. 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℃.
The values are expressed as an index with the measured value of Comparative Example 18, which will be described later, using a conventional negative electrode active material set as 100. The results are shown in Table 1. Comparative Example 18 A conventionally used zinc chloride alloy powder (Comparative Example 18) 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.
【表】【table】
【表】
第１表に示されるごとく、亜鉛にインジウムと
ビスマスと銀、ガリウム、テルルより選ばれる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１〜17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18に比べて、水素ガス発生抑制効果が
大きく、放電性能も優れていることがわかる。
（発明の効果）
以上説明のごとく、インジウムとビスマスと
銀、ガリウム、テルルより選ばれる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
ニーズにも沿つたものである。従つて、本発明の
亜鉛アルカリ電池は広範な用途に使用可能であ
る。[Table] As shown in Table 1, zinc is selected from indium, bismuth, silver, gallium, and tellurium.
Examples 1 to 13, in which a zinc oxide alloy powder made by adding a specific amount of mercury or more, was used as the negative electrode active material, compared to Comparative Examples 1 to 17, and the conventional method in which only mercury was added to zinc. It can be seen that compared to Comparative Example 18 in which zinc oxide alloy powder was used as the negative electrode active material, the hydrogen gas generation suppressing effect was greater and the discharge performance was also superior. (Effects of the Invention) As explained above, the zinc alloy of the present invention, which contains indium, bismuth, and one or more selected from silver, gallium, and tellurium within a specific range, is used as a negative electrode active material either as it is or after being made into a liquid. Alkaline batteries can improve battery performance while suppressing the hydrogen gas generation rate, and also meet social needs because they contain low or no mercury. Therefore, the zinc-alkaline 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
の断面図を示す。
１：正極缶、２：正極、３：セパレーター、
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 sectional view of an alkaline manganese battery according to the present invention. 1: positive electrode can, 2: positive electrode, 3: separator,
4: Negative electrode, 5: Negative electrode current collector, 6: Rubber packing,
7: Pressing board.
Claims (1)
0.01〜0.5重量％、銀、ガリウム、テルルより選
ばれる１種以上を合計0.01〜0.5重量％と、残部
が亜鉛からなる亜鉛合金を負極物質として用いた
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 indium and bismuth
1. A zinc-alkaline battery characterized in that a zinc alloy comprising 0.01 to 0.5% by weight of one or more selected from silver, gallium, and tellurium in a total of 0.01 to 0.5% by weight, and the balance being zinc is used as a negative electrode 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 |
|---|---|---|---|
| JP59273756A JPS61153949A (en) | 1984-12-27 | 1984-12-27 | Zinc alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59273756A JPS61153949A (en) | 1984-12-27 | 1984-12-27 | Zinc alkaline storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61153949A JPS61153949A (en) | 1986-07-12 |
| JPH0418673B2 true JPH0418673B2 (en) | 1992-03-27 |
Family
ID=17532137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59273756A Granted JPS61153949A (en) | 1984-12-27 | 1984-12-27 | Zinc alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61153949A (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826456A (en) * | 1981-08-11 | 1983-02-16 | Toho Aen Kk | Zinc alloy for electrode |
| JPS58218762A (en) * | 1982-06-11 | 1983-12-20 | Toshiba Battery Co Ltd | Alkaline battery |
| JPS5994371A (en) * | 1982-11-22 | 1984-05-31 | Mitsui Mining & Smelting Co Ltd | Alkaline battery and its manufacturing method |
| JPS59139558A (en) * | 1982-11-30 | 1984-08-10 | Toshiba Battery Co Ltd | Alkaline battery |
-
1984
- 1984-12-27 JP JP59273756A patent/JPS61153949A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61153949A (en) | 1986-07-12 |
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