JPH065284A - Zinc alkaline battery - Google Patents
Zinc alkaline batteryInfo
- Publication number
- JPH065284A JPH065284A JP4160777A JP16077792A JPH065284A JP H065284 A JPH065284 A JP H065284A JP 4160777 A JP4160777 A JP 4160777A JP 16077792 A JP16077792 A JP 16077792A JP H065284 A JPH065284 A JP H065284A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- zinc
- alkaline battery
- negative electrode
- assembled
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
-
- 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)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は亜鉛アルカリ電池に関
し、詳しくは無汞化かつ鉛無添加の亜鉛合金粉末を用い
た低公害かつ安全で高性能な亜鉛アルカリ電池用ゲル状
負極に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a zinc-alkaline battery, and more particularly to a gelled negative electrode for zinc-alkaline batteries which is low-pollution, safe and high-performance, using a zinc alloy powder containing no lead and no lead. .
【0002】[0002]
【従来の技術】従来、亜鉛アルカリ電池の負極活物質と
しては、亜鉛の腐食によるガス発生の抑制及び電気特性
の向上を目的として、汞化亜鉛合金粉末が用いられてい
たが、近年、使用済電池による環境汚染が問題視される
ようになってきたことから低公害化が社会的な要望とな
り、亜鉛合金粉末を無汞化(無水銀)にするための亜鉛
合金組成や防食剤(インヒビター)等の研究が進めら
れ、遂に実用上問題のない無水銀アルカリ電池用ゲル状
負極が開発されるに至った。2. Description of the Related Art Conventionally, zinc negative alloy powder has been used as a negative electrode active material of a zinc alkaline battery for the purpose of suppressing gas generation due to corrosion of zinc and improving electrical characteristics. Since environmental pollution due to batteries has come to be regarded as a problem, there has been a social demand for low pollution, and a zinc alloy composition and an anticorrosive agent (inhibitor) for making the zinc alloy powder unconstrained (silver-free). As a result of such research, finally, a gelled negative electrode for a mercury-free alkaline battery, which has no practical problems, was finally developed.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、無水銀
アルカリ電池で実用化されている無汞化亜鉛合金粉末中
には、水素ガス発生を抑制するために水銀と同様に有害
物質である鉛を数百ppm添加していることから、鉛無
添加の亜鉛合金粉末を用いた無水銀アルカリ電池への要
望が高まっている。However, in the unalloyed zinc alloy powder which has been put to practical use in a mercury-free alkaline battery, lead, which is a harmful substance like mercury, is contained in order to suppress generation of hydrogen gas. Since 100 ppm is added, the demand for a mercury-free alkaline battery using lead-free zinc alloy powder is increasing.
【0004】ところで、現在までに鉛を添加していない
亜鉛アルカリ電池用亜鉛合金に関して特許公開されたも
のとしては、特開昭63−133450号公報、特開平
2−194103号公報等数多くあり、その中にはある
程度の耐食性を期待できるものもあるが、十分とは言え
ない。また、発生したガスを逃がす構造を有する電池に
は使用可能であるかもしれないが、円筒形アルカリ・マ
ンガン乾電池等、密閉構造を有する電池には亜鉛合金組
成を改善しただけでは、未放電時のガス発生は抑制でき
ても一部放電した後のガス発生までは抑制できず、実用
可能なゲル状負極とはなり得ない。このような情況か
ら、よりガス発生の少ない亜鉛合金組成の開発並びに密
閉構造を有するアルカリ電池にも適用可能なゲル状負極
の開発が急務となっていた。By the way, there are many patent publications of zinc alloys for zinc-alkaline batteries to which lead has not been added up to now, such as JP-A-63-133450 and JP-A-2-194103. Some of them can be expected to have some degree of corrosion resistance, but they are not sufficient. Also, although it may be usable for a battery having a structure for releasing generated gas, it is possible to improve the zinc alloy composition for a battery having a sealed structure such as a cylindrical alkaline manganese dry battery by simply improving the zinc alloy composition. Even if the generation of gas can be suppressed, the generation of gas after partial discharge cannot be suppressed and the gelled negative electrode cannot be practically used. Under such circumstances, there has been an urgent need to develop a zinc alloy composition with less gas generation and a gelled negative electrode applicable to an alkaline battery having a sealed structure.
【0005】本発明は、上記情況に鑑みてなされたもの
で、その目的は無汞化かつ鉛無添加の亜鉛合金粉末を用
いた低公害かつ安全で高性能な亜鉛アルカリ電池を提供
することにある。The present invention has been made in view of the above circumstances, and an object thereof is to provide a low-pollution, safe, and high-performance zinc-alkaline battery using a zinc alloy powder free of lead and containing no lead. is there.
【0006】[0006]
【課題を解決するための手段】上記課題を解決するた
め、本発明はインジウム0.01〜0.1重量%,ビス
マス0.001〜0.01重量%,アルミニウム0.0
01〜0.01重量%及びチタン,マンガン,コバル
ト,ニッケル,ストロンチウムからなる群より選ばれた
少くとも1種類以上を0.001〜0.05重量%含有
する無汞化かつ鉛無添加の亜鉛合金粉末を負極活物質と
し、さらに亜鉛合金粉末の防食剤としてインジウム化合
物を亜鉛合金粉末に対してインジウムとして0.005
〜0.5重量%及び/または水酸化テトラブチルアンモ
ニウムを亜鉛合金粉末に対して0.0001〜0.05
重量%添加したゲル状負極を用いることにより、低公害
かつ安全で高性能な亜鉛アルカリ電池を実現したもので
ある。In order to solve the above-mentioned problems, the present invention provides 0.01-0.1% by weight of indium, 0.001-0.01% by weight of bismuth, and 0.0% of aluminum.
0.01 to 0.01% by weight and 0.001 to 0.05% by weight of at least one selected from the group consisting of titanium, manganese, cobalt, nickel and strontium, and lead-free and lead-free zinc The alloy powder was used as the negative electrode active material, and the indium compound was used as an anticorrosive for the zinc alloy powder, and the amount of indium was 0.005 as compared with the zinc alloy powder.
-0.5 wt% and / or tetrabutylammonium hydroxide based on zinc alloy powder 0.0001-0.05
By using the gelled negative electrode added by weight%, a low-pollution, safe and high-performance zinc alkaline battery was realized.
【0007】[0007]
【作用】本発明の亜鉛合金は、鉛の代替元素として、イ
ンジウム,ビスマス,アルミニウム及びチタン,マンガ
ン等を添加することにより、無汞化・有鉛亜鉛合金より
も未放電時の耐食性を高めることができる。この場合の
各添加元素の作用機構の詳細は十分明らかになってはい
ないが、各元素を単独で添加した場合には水素ガス発生
を実用可能なレベルに抑制できないことを確認している
ことから、複数元素添加の相乗効果によって亜鉛合金表
面の水素過電圧が高められたり、表面が平滑化されて表
面積が減少することにより、耐食性が向上するものと考
えられる。なお、ここで鉛無添加と表現しているのは、
現在の一般的な亜鉛製錬技術では、純亜鉛と言われるも
のでも鉛が30ppm程度不純物として混入することは
避けられず、30ppm以下とするのは技術的には可能
であるが、コスト的に不利であると考えられるからであ
る。In the zinc alloy of the present invention, by adding indium, bismuth, aluminum, titanium, manganese, etc. as an alternative element of lead, the corrosion resistance at the time of non-discharge is improved as compared with the unleaded and leaded zinc alloy. You can Although the details of the mechanism of action of each additive element in this case have not been fully clarified, it has been confirmed that hydrogen gas generation cannot be suppressed to a practical level when each element is added alone. It is considered that, due to the synergistic effect of the addition of a plurality of elements, the hydrogen overvoltage on the surface of the zinc alloy is increased, or the surface is smoothed and the surface area is reduced, so that the corrosion resistance is improved. In addition, what is expressed here as lead-free is
In the current general zinc smelting technology, it is unavoidable that even if it is called pure zinc, lead is mixed in as an impurity of about 30 ppm, and it is technically possible to set it to 30 ppm or less, but it is costly. This is because it is considered to be a disadvantage.
【0008】また、本発明の亜鉛合金粉末は、有鉛亜鉛
合金粉末よりもガス発生量が少なく、発生したガスを逃
がす構造を有する電池にはそのまま使用できるが、密閉
構造を有する円筒型アルカリ・マンガン電池等では、本
発明のような亜鉛合金組成の改善だけでは、漏液を引き
起こさない実用可能なレベルのガス発生には抑制できな
い。そこで、防食剤(インヒビター)としてインジウム
化合物及び/または水酸化テトラブチルアンモニウムを
添加することにより、密閉構造を有する電池でも実用可
能なゲル状負極を得ることができる。このうち、インジ
ウム化合物は、そのガス発生抑制機構の詳細は明らかで
ないが、電池を一部放電した場合のガス発生に多大な効
果があり、一方、水酸化テトラブチルアンモニウムは亜
鉛合金粉末表面に付着して自己放電を抑えて未放電での
ガス発生をより抑制すると共に、不純物がゲル状負極に
混入した際には、亜鉛粉と不純物の接触の機会を減ら
し、不純物によるガス発生の危険性をより下げることも
できる。Further, the zinc alloy powder of the present invention produces less gas than leaded zinc alloy powder and can be used as it is for a battery having a structure for releasing the generated gas. In a manganese battery or the like, merely improving the zinc alloy composition as in the present invention cannot suppress the generation of gas at a practical level that does not cause liquid leakage. Therefore, by adding an indium compound and / or tetrabutylammonium hydroxide as an anticorrosive agent (inhibitor), it is possible to obtain a gelled negative electrode that can be used even in a battery having a sealed structure. Of these, the details of the gas generation suppressing mechanism of indium compounds are not clear, but they have a great effect on gas generation when the battery is partially discharged, while tetrabutylammonium hydroxide adheres to the surface of the zinc alloy powder. The self-discharge is suppressed to further suppress the generation of gas in the undischarged state, and when impurities are mixed in the gelled negative electrode, the chance of contact between zinc powder and impurities is reduced, and the risk of gas generation due to impurities is reduced. It can be lowered.
【0009】[0009]
【実施例】以下、本発明の実施例及び比較例について詳
細に説明する。 (実施例1)まず、ゲル化剤としてのポリアクリル酸
0.4重量部に試薬特級相当以上の水酸化インジウム
(In(OH)3 )を0.0494重量部(In換算と
して亜鉛合金粉末に対して0.05重量%)加え、ポッ
トミルで10分間均一に混合した後、これをIn:0.
01重量%,Bi:0.003重量%,Al:0.00
3重量%及びTi:0.01重量%を含む粒径100〜
300μmの亜鉛合金粉末64.55重量部に加え、汎
用混合器で5分間撹拌し、均一に混合した。次いで酸化
亜鉛を3.5重量%溶解した35重量%濃度の苛性カリ
水溶液35重量部に、水酸化テトラブチルアンモニウム
0.0006重量部を添加し、10分間混合撹拌して十
分に分散させた後、前記亜鉛合金粉末の混合物を4分間
かけて徐々に添加すると共に、150mmHg以下の減
圧状態で撹拌・混合し、更に、10mmHg以下の減圧
状態にして5分間撹拌して、均一なゲル状負極を製造し
た。得られたゲル状負極を用いて図1に示すJIS規格
LR6形(単3形)アルカリ電池を組み立てた。EXAMPLES Examples of the present invention and comparative examples will be described in detail below. (Example 1) First, 0.0494 parts by weight of indium hydroxide (In (OH) 3 ) equivalent to a reagent grade or higher was added to 0.4 parts by weight of polyacrylic acid as a gelling agent (a zinc alloy powder was calculated as In conversion). 0.05% by weight), and uniformly mixed with a pot mill for 10 minutes.
01% by weight, Bi: 0.003% by weight, Al: 0.00
3% by weight and Ti: 0.01% by weight, particle size 100-
It was added to 63.55 parts by weight of 300 μm zinc alloy powder and stirred for 5 minutes with a general-purpose mixer to uniformly mix. Next, 0.0006 parts by weight of tetrabutylammonium hydroxide was added to 35 parts by weight of a 35% by weight caustic potash aqueous solution in which 3.5% by weight of zinc oxide was dissolved, and mixed and stirred for 10 minutes to sufficiently disperse, The zinc alloy powder mixture was gradually added over 4 minutes, stirred and mixed under a reduced pressure of 150 mmHg or less, and further stirred under a reduced pressure of 10 mmHg or less for 5 minutes to produce a uniform gelled negative electrode. did. A JIS standard LR6 type (AA) alkaline battery shown in FIG. 1 was assembled using the obtained gelled negative electrode.
【0010】この図において、1は正極端子を兼ねる有
底円筒形の金属缶であり、この金属缶1内には円筒状に
加圧成形した正極合剤2が充填されている。正極合剤2
は、二酸化マンガン粉末とカーボン粉末を混合し、これ
を金属缶1内に収納し所定の圧力で中空円筒状に加圧成
形したものである。また、正極合剤2の中空部には、ア
セタール化ポリビニルアルコール繊維の不織布からなる
有底円筒状のセパレータ3を介して前記方法で製造した
ゲル状負極4が充填されている。ゲル状負極4内には真
鍮製の負極集電棒5が、その上端部をゲル状負極4より
突出するように挿着されている。負極集電棒5の突出部
外周面及び金属缶1の上部内周面には二重環状のポリア
ミド樹脂からなる絶縁ガスケット6が配設されている。
また、ガスケット6の二重環状部の間にはリング状の金
属板7が配設され、かつ金属板7には負極端子を兼ねる
帽子形の金属封口板8が集電棒5の頭部に当接するよう
に配設されている。そして、金属缶1の開口縁を内方に
屈曲させることによりガスケット6及び金属封口板8で
金属缶1内を密封口している。In FIG. 1, reference numeral 1 denotes a bottomed cylindrical metal can that also serves as a positive electrode terminal. The metal can 1 is filled with a positive electrode mixture 2 which is pressed into a cylindrical shape. Positive electrode mixture 2
Is a mixture of manganese dioxide powder and carbon powder, which is housed in a metal can 1 and pressure molded into a hollow cylinder at a predetermined pressure. In addition, the hollow portion of the positive electrode mixture 2 is filled with the gelled negative electrode 4 manufactured by the above method via the bottomed cylindrical separator 3 made of a nonwoven fabric of acetalized polyvinyl alcohol fiber. In the gelled negative electrode 4, a brass negative electrode current collector rod 5 is inserted so that the upper end portion thereof protrudes from the gelled negative electrode 4. An insulating gasket 6 made of a double annular polyamide resin is disposed on the outer peripheral surface of the protruding portion of the negative electrode current collector rod 5 and the upper inner peripheral surface of the metal can 1.
A ring-shaped metal plate 7 is arranged between the double annular portions of the gasket 6, and a cap-shaped metal sealing plate 8 also serving as a negative electrode terminal is placed on the metal plate 7 so as to contact the head of the collector rod 5. It is arranged so as to contact. The opening edge of the metal can 1 is bent inward to seal the inside of the metal can 1 with the gasket 6 and the metal sealing plate 8.
【0011】(実施例2)亜鉛粉の合金組成が、In:
0.05重量%,Bi:0.003重量%,Al:0.
003重量%,Ti:0.01重量%であること以外、
実施例1と同様にしてJIS規格LR6形(単3形)ア
ルカリ電池を組立てた。Example 2 The alloy composition of zinc powder is In:
0.05% by weight, Bi: 0.003% by weight, Al: 0.
003% by weight, Ti: 0.01% by weight, except
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1.
【0012】(実施例3)亜鉛粉の合金組成が、In:
0.1重量%,Bi:0.003重量%,Al:0.0
03重量%,Ti:0.01重量%であること以外、実
施例1と同様にしてJIS規格LR6形(単3形)アル
カリ電池を組立てた。Example 3 The alloy composition of zinc powder is In:
0.1 wt%, Bi: 0.003 wt%, Al: 0.0
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1 except that the content was 03% by weight and Ti: 0.01% by weight.
【0013】(実施例4)亜鉛粉の合金組成が、In:
0.05重量%,Bi:0.001重量%,Al:0.
003重量%,Ti:0.01重量%であること以外、
実施例1と同様にしてJIS規格LR6形(単3形)ア
ルカリ電池を組立てた。Example 4 The alloy composition of zinc powder was In:
0.05% by weight, Bi: 0.001% by weight, Al: 0.
003% by weight, Ti: 0.01% by weight, except
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1.
【0014】(実施例5)亜鉛粉の合金組成が、In:
0.05重量%,Bi:0.005重量%,Al:0.
003重量%,Ti:0.01重量%であること以外、
実施例1と同様にしてJIS規格LR6形(単3形)ア
ルカリ電池を組立てた。(Example 5) The alloy composition of zinc powder is In:
0.05% by weight, Bi: 0.005% by weight, Al: 0.
003% by weight, Ti: 0.01% by weight, except
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1.
【0015】(実施例6)亜鉛粉の合金組成が、In:
0.05重量%,Bi:0.01重量%,Al:0.0
03重量%,Ti:0.01重量%であること以外、実
施例1と同様にしてJIS規格LR6形(単3形)アル
カリ電池を組立てた。Example 6 The alloy composition of zinc powder is In:
0.05% by weight, Bi: 0.01% by weight, Al: 0.0
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1 except that the content was 03% by weight and Ti: 0.01% by weight.
【0016】(実施例7)亜鉛粉の合金組成が、In:
0.05重量%,Bi:0.003重量%,Al:0.
001重量%,Ti:0.01重量%であること以外、
実施例1と同様にしてJIS規格LR6形(単3形)ア
ルカリ電池を組立てた。Example 7 The alloy composition of zinc powder was In:
0.05% by weight, Bi: 0.003% by weight, Al: 0.
001% by weight, Ti: 0.01% by weight, except that
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1.
【0017】(実施例8)亜鉛粉の合金組成が、In:
0.1重量%,Bi:0.003重量%,Al:0.0
05重量%,Ti:0.01重量%であること以外、実
施例1と同様にしてJIS規格LR6形(単3形)アル
カリ電池を組立てた。(Embodiment 8) The alloy composition of zinc powder is In:
0.1 wt%, Bi: 0.003 wt%, Al: 0.0
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1 except that the amounts were 05% by weight and Ti: 0.01% by weight.
【0018】(実施例9)亜鉛粉の合金組成が、In:
0.05重量%,Bi:0.001重量%,Al:0.
01重量%,Ti:0.01重量%であること以外、実
施例1と同様にしてJIS規格LR6形(単3形)アル
カリ電池を組立てた。(Example 9) The alloy composition of zinc powder was In:
0.05% by weight, Bi: 0.001% by weight, Al: 0.
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1 except that the amounts were 01% by weight and Ti: 0.01% by weight.
【0019】(実施例10)亜鉛粉の合金組成が、I
n:0.05重量%,Bi:0.003重量%,Al:
0.003重量%,Ti:0.001重量%であること
以外、実施例1と同様にしてJIS規格LR6形(単3
形)アルカリ電池を組立てた。(Example 10) The alloy composition of zinc powder was I
n: 0.05% by weight, Bi: 0.003% by weight, Al:
JIS standard LR6 type (AA) in the same manner as in Example 1 except that 0.003% by weight and Ti: 0.001% by weight.
Shape) Assembled alkaline battery.
【0020】(実施例11)亜鉛粉の合金組成が、I
n:0.05重量%,Bi:0.003重量%,Al:
0.003重量%,Ti:0.05重量%であること以
外、実施例1と同様にしてJIS規格LR6形(単3
形)アルカリ電池を組立てた。(Example 11) The alloy composition of zinc powder was I
n: 0.05% by weight, Bi: 0.003% by weight, Al:
JIS standard LR6 type (AA) in the same manner as in Example 1 except that 0.003% by weight and Ti: 0.05% by weight.
Shape) Assembled alkaline battery.
【0021】(実施例12)亜鉛粉の合金組成が、I
n:0.05重量%,Bi:0.003重量%,Al:
0.003重量%,Mn:0.01重量%であること以
外、実施例1と同様にしてJIS規格LR6形(単3
形)アルカリ電池を組立てた。Example 12 The alloy composition of zinc powder was I
n: 0.05% by weight, Bi: 0.003% by weight, Al:
JIS standard LR6 type (AA) in the same manner as in Example 1 except that 0.003% by weight and Mn: 0.01% by weight.
Shape) Assembled alkaline battery.
【0022】(実施例13)亜鉛粉の合金組成が、I
n:0.05重量%,Bi:0.003重量%,Al:
0.003重量%,Co:0.01重量%であること以
外、実施例1と同様にしてJIS規格LR6形(単3
形)アルカリ電池を組立てた。(Example 13) The alloy composition of zinc powder was I
n: 0.05% by weight, Bi: 0.003% by weight, Al:
JIS standard LR6 type (AA) in the same manner as in Example 1 except that 0.003% by weight and Co: 0.01% by weight.
Shape) Assembled alkaline battery.
【0023】(実施例14)亜鉛粉の合金組成が、I
n:0.05重量%,Bi:0.003重量%,Al:
0.003重量%,Ni:0.01重量%であること以
外、実施例1と同様にしてJIS規格LR6形(単3
形)アルカリ電池を組立てた。(Example 14) The alloy composition of zinc powder was I
n: 0.05% by weight, Bi: 0.003% by weight, Al:
JIS standard LR6 type (AA) in the same manner as in Example 1 except that the content is 0.003% by weight and Ni: 0.01% by weight.
Shape) Assembled alkaline battery.
【0024】(実施例15)亜鉛粉の合金組成が、I
n:0.05重量%,Bi:0.003重量%,Al:
0.003重量%,Sr:0.01重量%であること以
外、実施例1と同様にしてJIS規格LR6形(単3
形)アルカリ電池を組立てた。(Example 15) The alloy composition of zinc powder was I
n: 0.05% by weight, Bi: 0.003% by weight, Al:
JIS standard LR6 type (AA) in the same manner as in Example 1 except that 0.003% by weight and Sr: 0.01% by weight.
Shape) Assembled alkaline battery.
【0025】(実施例16)水酸化インジウムの添加量
がIn換算で亜鉛合金粉末に対し、0.005重量%で
あること以外、実施例2と同様にしてJIS規格LR6
形(単3形)アルカリ電池を組立てた。(Example 16) JIS standard LR6 was carried out in the same manner as in Example 2 except that the added amount of indium hydroxide was 0.005% by weight in terms of In based on the zinc alloy powder.
Type (AA) alkaline batteries were assembled.
【0026】(実施例17)水酸化インジウムの添加量
がIn換算で亜鉛合金粉末に対し、0.5重量%である
こと以外、実施例2と同様にしてJIS規格LR6形
(単3形)アルカリ電池を組立てた。(Example 17) JIS standard LR6 type (AA type) was used in the same manner as in Example 2 except that the added amount of indium hydroxide was 0.5% by weight in terms of In based on the zinc alloy powder. I assembled an alkaline battery.
【0027】(実施例18)水酸化テトラブチルアンモ
ニウムの添加量が亜鉛合金粉末に対し、0.0001重
量%であること以外、実施例2と同様にしてJIS規格
LR6形(単3形)アルカリ電池を組立てた。(Example 18) A JIS standard LR6 type (AA) alkali was used in the same manner as in Example 2 except that the amount of tetrabutylammonium hydroxide added was 0.0001% by weight based on the zinc alloy powder. I assembled the batteries.
【0028】(実施例19)水酸化テトラブチルアンモ
ニウムの添加量が亜鉛合金粉末に対し、0.05重量%
であること以外、実施例2と同様にしてJIS規格LR
6形(単3形)アルカリ電池を組立てた。(Example 19) The amount of tetrabutylammonium hydroxide added was 0.05% by weight based on the zinc alloy powder.
JIS standard LR in the same manner as in Example 2 except that
A 6-type (AA) alkaline battery was assembled.
【0029】(比較例1)亜鉛粉の合金組成が、Pb:
0.05重量%,Bi:0.01重量%,In:0.0
2重量%であること以外、実施例1と同様にしてJIS
規格LR6形(単3形)アルカリ電池を組立てた。Comparative Example 1 The alloy composition of zinc powder is Pb:
0.05% by weight, Bi: 0.01% by weight, In: 0.0
JIS in the same manner as in Example 1 except that the amount is 2% by weight.
Standard LR6 type (AA) alkaline batteries were assembled.
【0030】(比較例2)亜鉛粉の合金組成が、Bi:
0.003重量%,Al:0.003重量%,Ti:
0.01重量%であること以外、実施例1と同様にして
JIS規格LR6形(単3形)アルカリ電池を組立て
た。(Comparative Example 2) The alloy composition of zinc powder is Bi:
0.003% by weight, Al: 0.003% by weight, Ti:
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1 except that the content was 0.01% by weight.
【0031】(比較例3)亜鉛粉の合金組成が、In:
0.3重量%,Bi:0.003重量%,Al:0.0
03重量%,Ti:0.01重量%であること以外、実
施例1と同様にしてJIS規格LR6形(単3形)アル
カリ電池を組立てた。Comparative Example 3 The zinc powder alloy composition was In:
0.3% by weight, Bi: 0.003% by weight, Al: 0.0
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1 except that the content was 03% by weight and Ti: 0.01% by weight.
【0032】(比較例4)亜鉛粉の合金組成が、In:
0.05重量%であること以外、実施例1と同様にして
JIS規格LR6形(単3形)アルカリ電池を組立て
た。(Comparative Example 4) The alloy composition of zinc powder was In:
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1 except that the amount was 0.05% by weight.
【0033】(比較例5)亜鉛粉の合金組成が、In:
0.05重量%,Al:0.003重量%,Ti:0.
01重量%であること以外、実施例1と同様にしてJI
S規格LR6形(単3形)アルカリ電池を組立てた。(Comparative Example 5) The alloy composition of zinc powder was In:
0.05% by weight, Al: 0.003% by weight, Ti: 0.
JI in the same manner as in Example 1 except that the amount is 01% by weight.
An S standard LR6 type (AA) alkaline battery was assembled.
【0034】(比較例6)亜鉛粉の合金組成が、In:
0.05重量%,Bi:0.05重量%,Al:0.0
03重量%,Ti:0.01重量%であること以外、実
施例1と同様にしてJIS規格LR6形(単3形)アル
カリ電池を組立てた。(Comparative Example 6) The alloy composition of zinc powder was In:
0.05% by weight, Bi: 0.05% by weight, Al: 0.0
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1 except that the content was 03% by weight and Ti: 0.01% by weight.
【0035】(比較例7)亜鉛粉の合金組成が、Bi:
0.05重量%であること以外、実施例1と同様にして
JIS規格LR6形(単3形)アルカリ電池を組立て
た。Comparative Example 7 The alloy composition of zinc powder is Bi:
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1 except that the amount was 0.05% by weight.
【0036】(比較例8)亜鉛粉の合金組成が、In:
0.05重量%,Bi:0.003重量%,Ti:0.
01重量%であること以外、実施例1と同様にしてJI
S規格LR6形(単3形)アルカリ電池を組立てた。(Comparative Example 8) The alloy composition of zinc powder was In:
0.05% by weight, Bi: 0.003% by weight, Ti: 0.
JI in the same manner as in Example 1 except that the amount is 01% by weight.
An S standard LR6 type (AA) alkaline battery was assembled.
【0037】(比較例9)亜鉛粉の合金組成が、In:
0.05重量%,Bi:0.003重量%,Al:0.
05重量%,Ti:0.01重量%であること以外、実
施例1と同様にしてJIS規格LR6形(単3形)アル
カリ電池を組立てた。(Comparative Example 9) The zinc powder alloy composition was In:
0.05% by weight, Bi: 0.003% by weight, Al: 0.
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1 except that the amounts were 05% by weight and Ti: 0.01% by weight.
【0038】(比較例10)亜鉛粉の合金組成が、A
l:0.05重量%であること以外、実施例1と同様に
してJIS規格LR6形(単3形)アルカリ電池を組立
てた。Comparative Example 10 The alloy composition of zinc powder is A
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1 except that l: 0.05% by weight.
【0039】(比較例11)亜鉛粉の合金組成が、I
n:0.05重量%,Bi:0.003重量%,Al:
0.003重量%であること以外、実施例1と同様にし
てJIS規格LR6形(単3形)アルカリ電池を組立て
た。Comparative Example 11 The alloy composition of zinc powder is I
n: 0.05% by weight, Bi: 0.003% by weight, Al:
A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 1 except that the amount was 0.003% by weight.
【0040】(比較例12)亜鉛粉の合金組成が、I
n:0.05重量%,Bi:0.003重量%,Al:
0.003重量%,Ti:0.1重量%であること以
外、実施例1と同様にしてJIS規格LR6形(単3
形)アルカリ電池を組立てた。Comparative Example 12 The alloy composition of zinc powder is I
n: 0.05% by weight, Bi: 0.003% by weight, Al:
JIS standard LR6 type (AA) in the same manner as in Example 1 except that 0.003% by weight and Ti: 0.1% by weight.
Shape) Assembled alkaline battery.
【0041】(比較例13)水酸化インジウム及び水酸
化テトラブチルアンモニウムを添加しないこと以外、実
施例2と同様にしてJIS規格LR6形(単3形)アル
カリ電池を組立てた。Comparative Example 13 A JIS standard LR6 type (AA) alkaline battery was assembled in the same manner as in Example 2 except that indium hydroxide and tetrabutylammonium hydroxide were not added.
【0042】(比較例14)水酸化インジウムを添加し
ないこと以外、実施例2と同様にしてJIS規格LR6
形(単3形)アルカリ電池を組立てた。(Comparative Example 14) JIS Standard LR6 was prepared in the same manner as in Example 2 except that indium hydroxide was not added.
Type (AA) alkaline batteries were assembled.
【0043】(比較例15)水酸化インジウムの添加量
がIn換算で亜鉛合金粉末に対し、1.0重量%である
こと以外、実施例2と同様にしてJIS規格LR6形
(単3形)アルカリ電池を組立てた。(Comparative Example 15) JIS standard LR6 type (AA type) was carried out in the same manner as in Example 2 except that the added amount of indium hydroxide was 1.0% by weight based on the zinc alloy powder in terms of In. I assembled an alkaline battery.
【0044】(比較例16)水酸化テトラブチルアンモ
ニウムを添加しないこと以外、実施例2と同様にしてJ
IS規格LR6形(単3形)アルカリ電池を組立てた。COMPARATIVE EXAMPLE 16 J was prepared in the same manner as in Example 2 except that tetrabutylammonium hydroxide was not added.
An IS standard LR6 type (AA) alkaline battery was assembled.
【0045】(比較例17)水酸化テトラブチルアンモ
ニウムの添加量が亜鉛合金粉末に対し、0.1重量%で
あること以外、実施例2と同様にしてJIS規格LR6
形(単3形)アルカリ電池を組立てた。(Comparative Example 17) JIS standard LR6 was carried out in the same manner as in Example 2 except that the amount of tetrabutylammonium hydroxide added was 0.1% by weight based on the zinc alloy powder.
Type (AA) alkaline batteries were assembled.
【0046】以上のようにして組立てた各LR6電池に
ついて、未放電及び一部放電(2Ω・30分放電)後の
電池を60℃で40日間貯蔵した後、水中で分解して電
池内部のガスを捕集した結果(n=10ケの平均値),
2Ω連続放電持続時間(0.9vまで、n=6ケの平均
値)及び1.2kΩ連続放電での短寿命発生率(n=5
0ケ)を調べた。表1及び表2にこれら電池の試験結果
を示す。For each of the LR6 batteries assembled as described above, the undischarged and partially discharged (2Ω, 30 minutes discharged) batteries were stored at 60 ° C. for 40 days and then decomposed in water to decompose the gas inside the batteries. The result of collecting (n = 10 average values),
2Ω continuous discharge duration (up to 0.9v, average value of n = 6) and short life occurrence rate at 1.2kΩ continuous discharge (n = 5
0) was investigated. Tables 1 and 2 show the test results of these batteries.
【0047】[0047]
【表1】 [Table 1]
【0048】[0048]
【表2】 [Table 2]
【0049】表1及び表2より明らかなように、比較例
4,7及び10によると、インジウム,ビスマス,アル
ミニウムを単独で添加しても、未放電,一部放電共に6
0℃・40日貯蔵で漏液してしまい、ガス発生抑制に効
果がないことがわかるが、実施例1〜19のように複数
元素系になると相乗効果によって比較例1の鉛を含有し
た亜鉛合金よりもガス発生が抑制される。As is clear from Tables 1 and 2, according to Comparative Examples 4, 7 and 10, even if indium, bismuth and aluminum were added alone, both undischarged and partially discharged were 6
It can be seen that liquid is leaked at 0 ° C. for 40 days, and there is no effect in suppressing gas generation. However, when a multi-element system is used as in Examples 1 to 19, the lead-containing zinc of Comparative Example 1 is synergistically effective. Gas generation is suppressed more than alloys.
【0050】実施例1〜3及び比較例2,3によると、
亜鉛合金中の添加元素としてのインジウムは鉛無添加の
場合非常にガス発生抑制に効果があり、インジウムを添
加しない(比較例2)と、ビスマス,アルミニウム等を
添加しても実用可能なレベルにはならない。また、イン
ジウムを0.1重量%より多く添加しても(比較例
3),際立った効果はなく、コストの面から考えるとイ
ンジウムは0.1重量%以下が良い。According to Examples 1 to 3 and Comparative Examples 2 and 3,
Indium as an additive element in the zinc alloy is very effective in suppressing gas generation when lead is not added, and when indium is not added (Comparative Example 2), even if bismuth, aluminum, etc. are added, it becomes a practical level. Don't Even if indium is added in an amount of more than 0.1% by weight (Comparative Example 3), there is no remarkable effect, and in terms of cost, indium is preferably 0.1% by weight or less.
【0051】実施例2,4〜6及び比較例5,6による
と、ビスマスは表面を平滑化し、表面積を減少させるこ
とによりガス発生を抑制すると考えられるが、その反
面、添加量が多くなると重負荷放電特性に悪影響を及ぼ
すようであるので、ガス発生抑制と重負荷放電特性のバ
ランスを考慮すると、0.003〜0.005重量%の
範囲で添加することが望ましい。According to Examples 2, 4 to 6 and Comparative Examples 5 and 6, it is considered that bismuth suppresses gas generation by smoothing the surface and reducing the surface area, but on the other hand, when the addition amount is large, Since it seems to have an adverse effect on the load discharge characteristics, considering the balance between the gas generation suppression and the heavy load discharge characteristics, it is desirable to add in the range of 0.003 to 0.005% by weight.
【0052】実施例2,7〜9及び比較例8,9による
と、アルミニウムはガス発生抑制効果は大きいが、添加
量が多くなると軽負荷放電時に短寿命を引き起こし易い
ことが懸念されるので、ガス発生抑制と軽負荷放電特性
のバランスを考えると、0.003〜0.005重量%
の範囲で添加することが望ましい。According to Examples 2, 7 to 9 and Comparative Examples 8 and 9, although aluminum has a great effect of suppressing gas generation, it is feared that a large amount of aluminum tends to cause a short life at light load discharge. Considering the balance between gas generation suppression and light load discharge characteristics, 0.003 to 0.005% by weight
It is desirable to add in the range of.
【0053】実施例2,10〜15及び比較例11,1
2によると、チタン等の元素を添加すると、インジウ
ム,ビスマス,アルミニウムの3元素を添加した場合よ
りも一部放電後のガス発生が少ない、より安全なアルカ
リ電池が得られることがわかる。ただし、チタン等の添
加量が多過ぎると、かえってガス発生が多くなる傾向が
あるので、0.05重量%以下の添加量であることが望
ましい。また、本実施例には掲載していないが、チタ
ン,マンガン,コバルト,ニッケル,ストロンチウムの
中の2種類以上を適量添加しても、本実施例と同様に良
好な結果が得られる。Examples 2, 10 to 15 and Comparative Examples 11 and 1
According to 2, the addition of an element such as titanium can provide a safer alkaline battery with less gas generation after partial discharge than the case of adding the three elements of indium, bismuth and aluminum. However, if the addition amount of titanium or the like is too large, the amount of gas generated tends to increase, and therefore the addition amount is preferably 0.05% by weight or less. Although not shown in this example, even if two or more kinds of titanium, manganese, cobalt, nickel, and strontium are added in appropriate amounts, good results can be obtained as in this example.
【0054】実施例2,16〜19及び比較例13〜1
7によると、水酸化インジウムの添加は、一部放電後の
ガス発生を、密閉構造を有するアルカリ電池で実用可能
なレベルに抑制するために必要であることは明白であ
る。しかし、0.5重量%より多く添加しても際立った
効果はなく、コストの面から考えると、0.5重量%以
下の添加量で良い。Examples 2, 16-19 and Comparative Examples 13-1
7, it is clear that the addition of indium hydroxide is necessary to suppress the gas generation after partial discharge to a level practical for an alkaline battery having a sealed structure. However, adding more than 0.5% by weight has no remarkable effect, and from the viewpoint of cost, the addition amount of 0.5% by weight or less is sufficient.
【0055】なお、本実施例には掲載していないが、他
の塩化インジウム,硫酸インジウム,酸化インジウム等
のインジウム化合物を添加しても、本実施例と同様に良
好な結果が得られる。また、水酸化テトラブチルアンモ
ニウムの添加は未放電でのガス発生抑制に効果があるこ
とがわかるが、0.05重量%より多く添加すると、ゲ
ル状負極のインピーダンスが上昇するために重負荷放電
に悪影響を及ぼすようであるので、0.05重量%以下
の添加量で良い。Although not shown in this embodiment, the same good results as in this embodiment can be obtained by adding other indium compounds such as indium chloride, indium sulfate and indium oxide. Also, it can be seen that the addition of tetrabutylammonium hydroxide is effective in suppressing gas generation in the undischarged state, but if added in an amount of more than 0.05% by weight, the impedance of the gelled negative electrode rises, resulting in heavy load discharge Since it seems to have an adverse effect, the amount added may be 0.05% by weight or less.
【0056】[0056]
【発明の効果】以上説明したように、本発明の亜鉛合金
粉末と防食剤を使用したゲル状負極を有する亜鉛アルカ
リ電池は、無汞化かつ鉛無添加と言う電池のさらなる低
公害化を達成し、しかも無汞化・有無亜鉛合金粉末より
もガス発生が少なく安全で高性能な優れたものとなって
いる。As described above, the zinc-alkaline battery having the gelled negative electrode using the zinc alloy powder and the anticorrosive of the present invention achieves further pollution reduction of the battery which is free of lead and containing no lead. In addition, it has less gas generation and is safe and high-performance superior to the unalloyed / existing zinc alloy powder.
【図1】本発明方法により製造されたゲル状負極を組込
んだアルカリ乾電池の断面図。FIG. 1 is a cross-sectional view of an alkaline dry battery incorporating a gelled negative electrode manufactured by the method of the present invention.
1…金属缶、2…正極合剤、3…セパレータ、4…ゲル
状負極、5…負極集電棒、6…絶縁ガスケット、7…リ
ング状金属板、8…金属封口板。DESCRIPTION OF SYMBOLS 1 ... Metal can, 2 ... Positive electrode mixture, 3 ... Separator, 4 ... Gel negative electrode, 5 ... Negative electrode collector rod, 6 ... Insulating gasket, 7 ... Ring-shaped metal plate, 8 ... Metal sealing plate.
Claims (3)
スマス0.001〜0.01重量%,アルミニウム0.
001〜0.01重量%及びチタン,マンガン,コバル
ト,ニッケル,ストロンチウムからなる群より選ばれた
少くとも1種類以上を0.001〜0.05重量%含有
する無汞化かつ鉛無添加の亜鉛合金粉末を負極活物質と
したゲル状負極を有する亜鉛アルカリ電池。1. Indium 0.01 to 0.1% by weight, bismuth 0.001 to 0.01% by weight, aluminum 0.
0.001-0.05% by weight and 0.001-0.05% by weight of at least one selected from the group consisting of titanium, manganese, cobalt, nickel and strontium. A zinc alkaline battery having a gelled negative electrode using an alloy powder as a negative electrode active material.
極にインジウム化合物を亜鉛合金粉末に対してインジウ
ム換算で0.005〜0.5重量%添加した特許請求の
範囲第1項記載の亜鉛アルカリ電池。2. The zinc according to claim 1, wherein an indium compound is added to the gelled negative electrode as an anticorrosive agent for the zinc alloy powder in an amount of 0.005 to 0.5% by weight in terms of indium with respect to the zinc alloy powder. Alkaline battery.
極に水酸化テトラブチルアンモニウムを亜鉛合金粉末に
対して0.0001〜0.05重量%添加した、特許請
求の範囲第1項及び第2項記載の亜鉛アルカリ電池。3. A gel negative electrode containing tetrabutylammonium hydroxide in an amount of 0.0001 to 0.05% by weight based on the zinc alloy powder as an anticorrosive agent for the zinc alloy powder. The zinc alkaline battery according to item 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4160777A JPH065284A (en) | 1992-06-19 | 1992-06-19 | Zinc alkaline battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4160777A JPH065284A (en) | 1992-06-19 | 1992-06-19 | Zinc alkaline battery |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH065284A true JPH065284A (en) | 1994-01-14 |
Family
ID=15722229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4160777A Pending JPH065284A (en) | 1992-06-19 | 1992-06-19 | Zinc alkaline battery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH065284A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996007765A1 (en) * | 1994-09-05 | 1996-03-14 | N.V. Union Miniere S.A. | Zinc powder for alkaline batteries |
JPH08293309A (en) * | 1995-04-24 | 1996-11-05 | Fuji Elelctrochem Co Ltd | Manganese dry battery |
WO2006087388A1 (en) * | 2005-02-21 | 2006-08-24 | Celaya, Emparanza Y Galdos, S. A. (Cegasa) | Zinc alloy powder for use in an alkaline battery |
EP1892778A1 (en) * | 2005-08-09 | 2008-02-27 | Matsushita Electric Industrial Co., Ltd. | Manganese dry cell |
WO2019181538A1 (en) * | 2018-03-23 | 2019-09-26 | 株式会社村田製作所 | Alkaline battery |
-
1992
- 1992-06-19 JP JP4160777A patent/JPH065284A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996007765A1 (en) * | 1994-09-05 | 1996-03-14 | N.V. Union Miniere S.A. | Zinc powder for alkaline batteries |
BE1008715A3 (en) * | 1994-09-05 | 1996-07-02 | Union Miniere Sa | Zinc powder for alkaline batteries. |
JPH08293309A (en) * | 1995-04-24 | 1996-11-05 | Fuji Elelctrochem Co Ltd | Manganese dry battery |
WO2006087388A1 (en) * | 2005-02-21 | 2006-08-24 | Celaya, Emparanza Y Galdos, S. A. (Cegasa) | Zinc alloy powder for use in an alkaline battery |
ES2259549A1 (en) * | 2005-02-21 | 2006-10-01 | Celaya Emparanza Y Galdos, S.A. (Cegasa) | Zinc alloy powder for use in an alkaline battery |
EP1892778A1 (en) * | 2005-08-09 | 2008-02-27 | Matsushita Electric Industrial Co., Ltd. | Manganese dry cell |
EP1892778A4 (en) * | 2005-08-09 | 2009-02-04 | Panasonic Corp | Manganese dry cell |
WO2019181538A1 (en) * | 2018-03-23 | 2019-09-26 | 株式会社村田製作所 | Alkaline battery |
JPWO2019181538A1 (en) * | 2018-03-23 | 2020-12-17 | 株式会社村田製作所 | Alkaline battery |
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