JPH0244649A - Negative electrode material for alkaline battery - Google Patents
Negative electrode material for alkaline batteryInfo
- Publication number
- JPH0244649A JPH0244649A JP63192789A JP19278988A JPH0244649A JP H0244649 A JPH0244649 A JP H0244649A JP 63192789 A JP63192789 A JP 63192789A JP 19278988 A JP19278988 A JP 19278988A JP H0244649 A JPH0244649 A JP H0244649A
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- zinc
- electrode material
- powder
- added
- 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
- 239000007773 negative electrode material Substances 0.000 title claims abstract description 25
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000003792 electrolyte Substances 0.000 claims abstract description 8
- JXSVGTPMFNKSIC-UHFFFAOYSA-L [Cl-].CC[N+](C)(C)C.CC[N+](C)(C)C.CC(=C)C([O-])=O Chemical compound [Cl-].CC[N+](C)(C)C.CC[N+](C)(C)C.CC(=C)C([O-])=O JXSVGTPMFNKSIC-UHFFFAOYSA-L 0.000 claims description 14
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract description 18
- 229910052753 mercury Inorganic materials 0.000 abstract description 18
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract description 16
- 239000000843 powder Substances 0.000 abstract description 16
- 229910052725 zinc Inorganic materials 0.000 abstract description 13
- 239000011701 zinc Substances 0.000 abstract description 13
- 229910001297 Zn alloy Inorganic materials 0.000 abstract description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052738 indium Inorganic materials 0.000 abstract description 4
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 abstract 1
- ZAFFWOKULJCCSA-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate;trimethylazanium;chloride Chemical compound [Cl-].C[NH+](C)C.CCOC(=O)C(C)=C ZAFFWOKULJCCSA-UHFFFAOYSA-N 0.000 abstract 1
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- 125000006519 CCH3 Chemical group 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- JQPARKNWUCPYTK-UHFFFAOYSA-M ethyl(trimethyl)azanium;2-methylprop-2-enoate Chemical compound CC[N+](C)(C)C.CC(=C)C([O-])=O JQPARKNWUCPYTK-UHFFFAOYSA-M 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- 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
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明はアルカリ電池用負極材に関し、詳しくは負極材
に塩化メタクリル酸エチルトリメチルアンモニウム［Ｃ
Ｈ２： Ｃ（ＣＨ３）ＣＯＯＣＨ２ＣＨ２Ｎ ＣＣＨ３
）３ ＣＪ］を亜鉛粉末ｉｏｏ重量部に対して０．００
１〜１．０重量部添加することにより、水素ガス発生率
を抑制し、またアルカリ電池に組み込んだ際に電池特性
を著しく向上させたアルカリ電池用負極材に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a negative electrode material for alkaline batteries, and more specifically, the negative electrode material contains ethyltrimethylammonium methacrylate [C
H2: C(CH3)COOCH2CH2N CCH3
)3 CJ] to 0.00 parts by weight of zinc powder ioo
It relates to a negative electrode material for alkaline batteries that suppresses hydrogen gas generation rate and significantly improves battery characteristics when incorporated into alkaline batteries by adding 1 to 1.0 parts by weight.
［従来の技術］
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。[Prior Art] In an alkaline battery using zinc as a negative electrode active material, a strong alkaline electrolyte such as an aqueous potassium hydroxide solution is used, so the battery must be sealed tightly. 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３．０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 materials of alkaline batteries commercially available today contain a large amount of mercury, about 3.0% by weight, and there is a social need to develop lower mercury or mercury-free batteries. It has become highly anticipated.
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５８−１８１２８８号公報）等がある。また
ガリウム、アルミニウム等を添加した亜鉛合金粉末も提
案されている。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 are zinc alloy powders in which lead is added to zinc, or zinc alloy powders in which lead and indium are added to zinc (Japanese Unexamined Patent Publication No. 181288/1988). Further, zinc alloy powders to which gallium, aluminum, etc. are added have also been proposed.
［発明が解決しようとする課題］
このように亜鉛合金粉末を用いることにより、確かに水
銀含有量を低減させても水素ガス発生を抑制させること
が可能となったが、一方では水銀含有量の低減に伴なう
放電性能の劣化という課題が顕在化してきた。即ち、社
会的ニーズに対応して亜鉛合金粉末の水銀含有量を０．
１〜０，２重量％程度に低減させると、従来の３．０重
量％程度の水銀含有量のものに比較して放電性能が８０
％程度まで劣化する。[Problem to be solved by the invention] By using zinc alloy powder in this way, it is certainly possible to suppress hydrogen gas generation even if the mercury content is reduced. The problem of deterioration of discharge performance due to reduction has become apparent. That is, in response to social needs, the mercury content of zinc alloy powder was reduced to 0.
When the mercury content is reduced to about 1 to 0.2% by weight, the discharge performance is 80% lower than that of the conventional mercury content of about 3.0% by weight.
It deteriorates to about %.
これは電池内で水銀は亜鉛粒子間の電気的接触を助ける
。あるいは亜鉛表面に不働態化被膜が生成するのを抑制
し、亜鉛の均一溶解に効果があるが、０．２重量％以下
という超低水銀量になった場合、これら水銀の効果が充
分に発揮できないためと考えられる。This helps make electrical contact between the mercury and zinc particles within the battery. Alternatively, it is effective in suppressing the formation of a passivation film on the zinc surface and dissolving the zinc uniformly, but when the amount of mercury is extremely low, 0.2% by weight or less, the effects of mercury are not fully exerted. This is probably because it is not possible.
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
い水準に維持するアルカリ電池用負極材を提供すること
を目的とする。In view of the current situation, it is an object of the present invention to provide a negative electrode material for alkaline batteries that suppresses hydrogen gas generation while significantly reducing the mercury content and maintains discharge performance at a high level.
［課題を解決するための手段］
本発明者らは、この目的に沿って鋭意研究の結果、亜鉛
粉末、電解液を有する負極材に、塩化メタクリル酸エチ
ルトリメチルアンモニウムを一定量添加することにより
、水素ガス発生を抑制させ、しかも電池に組み込んだ時
に放電性能を向上させるアルカリ電池用負極材が得られ
ることを見出し本発明に到達した。[Means for Solving the Problem] As a result of intensive research in line with this objective, the present inventors have found that by adding a certain amount of ethyltrimethylammonium methacrylate chloride to a negative electrode material containing zinc powder and an electrolyte, The present invention was achieved by discovering that it is possible to obtain a negative electrode material for alkaline batteries that suppresses hydrogen gas generation and improves discharge performance when incorporated into a battery.
すなわち、本発明は、亜鉛粉末、電解液を有するアルカ
リ電池用負極材において、塩化メタクリル酸エチルトリ
メチルアンモニウムを該亜鉛粉末１００重量部に対して
０．００１〜１．０重量部添加したことを特徴とするア
ルカリ電池用負極材である。That is, the present invention is characterized in that 0.001 to 1.0 parts by weight of ethyltrimethylammonium methacrylate chloride is added to 100 parts by weight of the zinc powder in a negative electrode material for alkaline batteries containing zinc powder and an electrolyte. This is a negative electrode material for alkaline batteries.
本発明において使用される亜鉛粉末とは、亜鉛のみの粉
末のみならず、鉛やインジウム等の他の元素によって合
金化される亜鉛合金粉末も包含される。また、本発明で
用いられる亜鉛粉末には、上述した亜鉛のみの粉末また
は亜鉛合金粉末を、例えば水酸化カリウム、水酸化ナト
リウム等の希アルカリ溶液中で氷化して得られる氷化し
た汞化亜鉛粉末や汞化亜鉛合金粉末も当然にも包含され
る。亜鉛粉末中の水銀含有量は、従来の負極活物質とし
て用いられる氷化亜鉛粉末の水銀含有量よりも少ない量
、すなわち３，０重量％以下であることが望ましいが、
低公害性を考慮すると １．５重量％以下であることが
さらに望ましい。The zinc powder used in the present invention includes not only a zinc-only powder but also a zinc alloy powder alloyed with other elements such as lead and indium. In addition, the zinc powder used in the present invention includes frozen zinc powder obtained by freezing the above-mentioned zinc-only powder or zinc alloy powder in a dilute alkaline solution such as potassium hydroxide or sodium hydroxide. Naturally, powder and zinc alloy powder are also included. The mercury content in the zinc powder is preferably less than the mercury content of frozen zinc powder used as a conventional negative electrode active material, that is, 3.0% by weight or less.
Considering low pollution properties, it is more desirable that the content be 1.5% by weight or less.
本発明においては、この亜鉛粉末と水酸化カリウム等の
電解液を有する負極材中に塩化メタクリル酸エチルトリ
メチルアンモニウムを添加する。In the present invention, ethyltrimethylammonium methacrylate chloride is added to a negative electrode material containing this zinc powder and an electrolyte such as potassium hydroxide.
ここで添加する塩化メタクリル酸エチルトリメチルアン
モニウムの添加量は、上記亜鉛粉末１００重量部に対し
て０．００１〜１．０重量部である。塩化メタクリル酸
エチルトリメチルアンモニウムの添加量が０．００１重
量部未満では放電性能を改善するといった本発明の効果
が得られず、１．０重量部を超えた場合にはアルカリ電
池の一定容積中に占める亜鉛粉末の充填量が少なくなり
、放電性能にとって良好な結果が得られない。The amount of ethyltrimethylammonium methacrylate chloride added here is 0.001 to 1.0 parts by weight based on 100 parts by weight of the zinc powder. If the amount of ethyltrimethylammonium methacrylate chloride added is less than 0.001 parts by weight, the effect of the present invention such as improving discharge performance cannot be obtained, and if it exceeds 1.0 parts by weight, it will not be added to the constant volume of the alkaline battery. The amount of zinc powder to be filled becomes small, and good results for discharge performance cannot be obtained.
これら塩化メタクリル酸エチルトリメチルアンモニウム
による作用効果は充分に解明されていないが、推定する
に、電池の保存中は亜鉛粉末の表面に吸着してインヒビ
ターとして働くため、亜鉛粉末の耐食性に効果があり、
一方、放電時には亜鉛表面に酸化物が生成して不働態化
するのを抑制する効果があると考えられる。The effects of ethyltrimethylammonium methacrylate chloride have not been fully elucidated, but it is presumed that during battery storage, it adsorbs to the surface of zinc powder and acts as an inhibitor, so it has an effect on the corrosion resistance of zinc powder.
On the other hand, it is thought to have the effect of suppressing the formation of oxides on the zinc surface and passivation during discharge.
［実施例］
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。[Examples] The present invention will be specifically described below based on Examples and Comparative Examples.
実施例１〜３および比較例１
純度９９．９９７％以上の亜鉛地金を約５００℃で溶融
し、これに鉛、インジウム、アルミニウムの含有率がそ
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５に’ｊ／ｃ
ｔｒｌ”）を使って粉体化した。Examples 1 to 3 and Comparative Example 1 A zinc ingot with a purity of 99.997% or more was melted at about 500°C, and lead, indium, and aluminum were added to it so that the content was 0.05% by weight each. A zinc alloy is created using high pressure argon gas (ejection pressure:
trl'').
二の粉体を５０〜１．０メツシユの粒度範囲に篩い分け
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０．１重量％となるように水銀を添加して
、氷化処理を行い汞化亜鉛合金粉末を得た。The second powder was sieved to a particle size range of 50 to 1.0 mesh. Next, 0.1% by weight of mercury was added to the above powder in an alkaline solution containing 10% potassium hydroxide, and a freezing treatment was performed to obtain a zinc chloride alloy powder.
一方、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にカルボキシメチルセルロースとポ
リアクリル酸ソーダを１．０％程度加えて電解液を作成
した。On the other hand, an electrolytic solution was prepared by adding about 1.0% of carboxymethyl cellulose and sodium polyacrylate to a 40% by weight potassium hydroxide aqueous solution saturated with zinc oxide.
上記氷化亜鉛粉末３．０ｇと電解液１．５ｇおよび第１
表に示す塩化メタクリル酸エチルトリメチルアンモニウ
ムを添加して負極材として第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。但し、比較例１は
塩化メタクリル酸エチルトリメチルアンモニウムを添加
しなかった。3.0 g of the above frozen zinc powder, 1.5 g of electrolyte and the first
Battery performance was evaluated using an alkaline manganese battery shown in FIG. 1 with the addition of ethyltrimethylammonium chloride methacrylate shown in the table as a negative electrode material. However, in Comparative Example 1, ethyltrimethylammonium methacrylate chloride was not added.
第１図のアルカリマンガン電池は、正極缶１、正極２、
負極３、セパレーター４、封口体５、負極底板６、負極
集電体７、キャップ８、熱収縮性樹脂チューブ９、絶縁
リング１０．１１、外装缶１２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２Ω、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、従来の塩化メタクリル酸エチルトリメチルアン
モニウムを加えない負極材を用いた比較例１の測定値を
１００とした指数で示した。結果を第１表に示した。The alkaline manganese battery shown in Figure 1 consists of a positive electrode can 1, a positive electrode 2,
It is composed of a negative electrode 3, a separator 4, a sealing body 5, a negative electrode bottom plate 6, a negative electrode current collector 7, a cap 8, a heat-shrinkable resin tube 9, an insulating ring 10, 11, and an outer can 12. Using this alkaline manganese battery, the discharge duration up to the final voltage of 0.9V was measured under the discharge conditions of 2Ω discharge load and 20°C. Comparative Example 1 using a negative electrode material without adding conventional ethyltrimethylammonium methacrylate chloride It is expressed as an index with the measured value as 100. The results are shown in Table 1.
また、上記負極材を用いて６０℃で２０日間のガス発生
率（ＩＩｔｌ／ｇ−ｄａｙ）を測定し、上記した従来の
負極材である比較例１の測定値を１．０とした指数で第
１表に示した。In addition, the gas generation rate (IItl/g-day) was measured for 20 days at 60°C using the above negative electrode material, and the index was calculated using the measured value of Comparative Example 1, which is the conventional negative electrode material, as 1.0. It is shown in Table 1.
第１表に示されるごとく、負極材に塩化メタクリル酸エ
チルトリメチルアンモニウムを添加した実施例１〜３は
、負極材に塩化メタクリル酸エチルトリメチルアンモニ
ウムを添加しない比較例１に比べて、水素ガス発生率が
低く、しかも放電性能が優れている。As shown in Table 1, Examples 1 to 3 in which ethyltrimethylammonium methacrylate chloride was added to the negative electrode material had a higher hydrogen gas generation rate than Comparative Example 1 in which ethyltrimethylammonium methacrylate chloride was not added to the negative electrode material. is low, and has excellent discharge performance.
このことから、水銀を低含有率にしても、塩化メタクリ
ル酸エチルトリメチルアンモニウムを添加することによ
り、従来の水銀が果たしてきた役割を代替することが可
能であることが判る。This shows that even if the mercury content is reduced, the role traditionally played by mercury can be replaced by adding ethyltrimethylammonium methacrylate chloride.
［発明の効果］
以上説明のごとく、塩化メタクリル酸エチルトリメチル
アンモニウムを添加した本発明のアルカリ電池用負極材
は、水素ガス発生率を抑制させつつ、電池性能を向上さ
せることが可能であり、また水銀を低含有率にすること
ができるので、社会的ニーズにも沿ったものである。[Effects of the Invention] As explained above, the negative electrode material for alkaline batteries of the present invention to which ethyltrimethylammonium methacrylate chloride is added can improve battery performance while suppressing the hydrogen gas generation rate. It also meets social needs because it can reduce mercury content.
【図面の簡単な説明】
第１図は本発明に係わるアルカリマンガン電池の側断面
図を示す。
１：正極缶、 ２：正極、 ３：負極、４：セパレータ
−５：封口体、
６：負極底板、 ７：負極集電体、
８：キャップ、 ９：熱収縮性樹脂チューブ、ｔｏ、
ｔｔ：絶縁リング、 １２：外装缶。
特許出願人 三井金属鉱業株式会社
代理人 弁理士 伊 東 辰 雄
代理人 弁理士 伊 東 哲 也BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a side sectional view of an alkaline manganese battery according to the present invention. 1: positive electrode can, 2: positive electrode, 3: negative electrode, 4: separator-5: sealing body, 6: negative electrode bottom plate, 7: negative electrode current collector, 8: cap, 9: heat-shrinkable resin tube, to,
tt: insulation ring, 12: outer can. Patent applicant: Mitsui Mining & Mining Co., Ltd. Agent: Tatsuo Ito, patent attorney: Patent attorney: Tetsuya Ito
Claims (1)
おいて、塩化メタクリル酸エチルトリメチルアンモニウ
ムを該亜鉛粉末１００重量部に対して０．００１〜１．
０重量部添加したことを特徴とするアルカリ電池用負極
材。1. In a negative electrode material for alkaline batteries containing zinc powder and electrolyte, ethyltrimethylammonium methacrylate chloride is added in an amount of 0.001 to 1.0 parts by weight per 100 parts by weight of the zinc powder.
A negative electrode material for an alkaline battery, characterized in that 0 parts by weight is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63192789A JPH0244649A (en) | 1988-08-03 | 1988-08-03 | Negative electrode material for alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63192789A JPH0244649A (en) | 1988-08-03 | 1988-08-03 | Negative electrode material for alkaline battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0244649A true JPH0244649A (en) | 1990-02-14 |
Family
ID=16297024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63192789A Pending JPH0244649A (en) | 1988-08-03 | 1988-08-03 | Negative electrode material for alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0244649A (en) |
-
1988
- 1988-08-03 JP JP63192789A patent/JPH0244649A/en active Pending
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