JPS62262367A - Alkaline zing storage battery - Google Patents
Alkaline zing storage batteryInfo
- Publication number
- JPS62262367A JPS62262367A JP61103543A JP10354386A JPS62262367A JP S62262367 A JPS62262367 A JP S62262367A JP 61103543 A JP61103543 A JP 61103543A JP 10354386 A JP10354386 A JP 10354386A JP S62262367 A JPS62262367 A JP S62262367A
- Authority
- JP
- Japan
- Prior art keywords
- zinc
- particles
- zinc oxide
- battery
- oxide layer
- 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.)
- Granted
Links
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 title 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 65
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 64
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 63
- 239000011701 zinc Substances 0.000 claims abstract description 63
- 239000002245 particle Substances 0.000 claims abstract description 47
- 239000011787 zinc oxide Substances 0.000 claims abstract description 32
- 239000007773 negative electrode material Substances 0.000 claims description 11
- 210000001787 dendrite Anatomy 0.000 abstract description 7
- 239000003792 electrolyte Substances 0.000 abstract description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000006866 deterioration Effects 0.000 abstract description 2
- 239000013543 active substance Substances 0.000 abstract 3
- 239000011149 active material Substances 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 229910000464 lead oxide Inorganic materials 0.000 description 4
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 210000003296 saliva Anatomy 0.000 description 2
- KZNMRPQBBZBTSW-UHFFFAOYSA-N [Au]=O Chemical compound [Au]=O KZNMRPQBBZBTSW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910001922 gold oxide Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical group [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000474 mercury oxide Inorganic materials 0.000 description 1
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
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
-
- 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
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/244—Zinc electrodes
-
- 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
【発明の詳細な説明】
何）産業上の利用分野
本発明にニッケルー亜鉛Ｓ電池、銀−亜鉛蓄電池のよう
にアルカリ電解液を用い、負極活物質として亜鉛？用い
るアルカリ亜鉛蓄電池に関するものである。[Detailed Description of the Invention] What) Industrial Application Fields The present invention uses alkaline electrolyte like nickel-zinc S batteries and silver-zinc storage batteries, and uses zinc as the negative electrode active material? This invention relates to the alkaline zinc storage battery used.
（ロ） 従来の技術
従来：リアルカリ亜鉛蓄電池に負極活物質として用いら
れる亜鉛が、アルカリ蓄電池の負極活物質としてよく用
いられるカドミウムに比べてアルカリ電解液中で卑な電
位全方するためエネルギー密度が高く、また安価であり
公害の心配がないなどの理由から、多くの実用化検討が
なされてき之０ところが、アルカリ亜鉛蓄電池は充放ｔ
’に繰り返すと負極活物質である亜鉛粒子が徐々に巨大
化し、この粒子の高密度化により活物質の作用有効面積
が減少すると共に粒子内部の活物・質が充放電に利用で
きなくなり亜鉛極の容量が減少し、１之負極活向質内に
巨大な亜鉛粒子が存在すると、この巨大粒子が核となり
亜鉛のデンドライトが生長し正負極間の上路現象が生じ
る等の欠点があるりこの原因に負極活物質である亜鉛が
アルカリ電解液に溶解することに起因する。特に亜鉛の
デンドライトの生長による正負極間の内部帰路に解消し
なければならない問題であり、この点を少しでも改善す
るｔめに特公昭５５−２９５４８号公報で −ぼ電解液
量を遊離のものが存在しない程度に規、Ｉ＋！１し、亜
鉛の溶解を極力抑えることが提案されている。また特開
昭５８−１５８８６７号公報でに亜鉛粒子の巨大化防止
のために粒径の小さい亜鉛を負極活物質として使用する
ことが提案されている。(b) Conventional technology Conventional technology: Zinc, which is used as a negative electrode active material in real alkaline zinc storage batteries, has a lower energy density in an alkaline electrolyte than cadmium, which is often used as a negative electrode active material in alkaline storage batteries. Many studies have been conducted on practical application of alkaline zinc storage batteries because they are expensive, inexpensive, and have no concerns about pollution.
' If repeated, the zinc particles, which are the negative electrode active material, will gradually become larger, and due to the increased density of these particles, the active area of the active material will decrease, and the active material inside the particles will no longer be able to be used for charging and discharging. The capacity of the electrode decreases, and if there are huge zinc particles in the anode active material, these giant particles will become nuclei and zinc dendrites will grow, causing an upward path phenomenon between the positive and negative electrodes. This is due to the fact that zinc, which is a negative electrode active material, dissolves in an alkaline electrolyte. In particular, this is a problem that must be solved in the internal return path between the positive and negative electrodes due to the growth of zinc dendrites. I+! 1. It has been proposed to suppress the dissolution of zinc as much as possible. Furthermore, Japanese Patent Application Laid-open No. 158867/1983 proposes the use of zinc having a small particle size as a negative electrode active material in order to prevent the zinc particles from becoming large.
しかしながら、−５投に負極活物質として、使用される
酸化１■鉛に、金属亜鉛ケ加必して唾鉛蒸気とし、この
亜鉛蒸気をノズルから燃焼室へ噴出すると同時にａ焼室
に空気を供給して金属亜鉛を酸化燃焼するフランス法に
よって製造されており、その粉末に粒怪、形状が共にま
ちまちの団塊状粒子の集合体であり、電解液量を規制し
た場合に於いてもデンドライトの生長を充分に抑制する
ことができないっまｔ、亜鉛粒子の粒怪を規Ｍ１シた場
合に於いても充放電サイクルがより長間にわたると、亜
鉛粒子が徐々に巨大化し高密度化すると共に、巨大粒子
が存在するようになリデンドライトが発生するという開
門があっ之。However, metal zinc must be added to the lead oxide used as the negative electrode active material in -5 injection to produce saliva lead vapor, and this zinc vapor is ejected from the nozzle into the combustion chamber while at the same time air is introduced into the combustion chamber. It is manufactured using the French method of supplying and oxidizing metallic zinc, and the powder is an aggregate of nodular particles with different sizes and shapes, and even when the amount of electrolyte is regulated, dendrite If the growth cannot be sufficiently suppressed, and even if the grain size of the zinc particles is controlled by M1, as the charge/discharge cycle continues for a longer period of time, the zinc particles will gradually become larger and more dense. , there was an opening in which giant particles began to exist and redendrite was generated.
（ハ）発明が解決しようとする間Ｊ点
本発明げ亜鉛活物質粒子の巨大化を抑制し、亜鉛極の容
量低下全防止すると共に電池のサイクルで合金向上させ
ようとするものである０に）間萌点全解決するための手
段
本発明のアルカＩＪ １ｌｌｌｊ鉛蓄電池に、負極活物
質として表面に１０〜５０重号％の酸化Ｉ■鉛ＰＩ金形
成した亜鉛粒子を用いること金％徴とする。(c) While the invention is trying to solve the problem, the present invention aims to suppress the enlargement of the zinc active material particles, completely prevent the decrease in the capacity of the zinc electrode, and improve the alloy during battery cycles. ) Means for completely solving the catalytic failure point In the Alka IJ 1lllj lead-acid battery of the present invention, zinc particles formed on the surface of 10 to 50% I lead PI gold oxide as the negative electrode active material are used. do.
（ホ）作 用
表面に酸化亜鉛層を形成し之亜鉛粒子１−Ｃ還元雰−気
中で金属亜鉛を溶Ｍ、蒸発させ、凝集させる際、金属亜
鉛粒子表面を酸化させ之ものである□従来の酸化亜鉛は
粒子内はとんどが酸化され之ものであり、内部に金属亜
鉛部が存在しないが、表面に酸化亜鉛層を形成した亜鉛
粒子は内部に金属百鉛部金有するものである□この亜鉛
粒子を活物質として用いることにより充電時電子伝導性
全有する金属亜鉛と接する酸化亜鉛から亜鉛に遺児され
ていき充電の進行とともに充電生成物である金属亜鉛部
が放射状に増大する。この充電の進行部が、表面に酸化
亜鉛層を形成し之＠に！粒子表面上に多数出現し局部的
ＶＣｔ流が集中するのを抑制するので亜鉛活物質粒子の
巨大化が防止できる。ま之酸化亜鉛に被覆されていない
金属亜鉛部が多数生成するのでこれが電着時のト珂とな
り均一な電析亜鉛を生じ亜鉛粒子の巨大化全防止でｉる
っ（へ）実施例
活物質として２５Ｍｔ％の酸化亜鉛層を表面に形成し九
唾鉛粒子を９０重滑落、添加剤として酸化水銀５Ｍ景％
、結着剤としてフヮ累樹脂５ｆｉｔ９６よりなる混合粉
末に水を加え混練し、ローラにより活物質シートを作製
しパンチングメタル集電体に付着させる。）これを加圧
成型後、！！燥して亜鉛極を得、これと公知の焼結式ニ
ッケル正極と組み合わせ本発明′心池（Ａ）を組み立て
た・）第１図は本発明電池（Ａ）の縦断面を示し、図中
ｉｌ＋に表面に酸化亜鉛層を形成した亜鉛粒子を活物質
とする亜鉛負極、１２ＩｎニーＩケル正極、１３；ｔゴ
セパレータでありこれらを巻きと９部収縮チューブ＋Ｈ
＋で包んで外装缶１４１に挿入している。ｆＧ＋は正極
用導電タブであり封口体（笥に接続されており、１７社
負極用導電タブで外装缶１４）に接読されている。そし
て封口体（５１はバッキングｆ’１１ ’５介して外装
缶（４：の開口部に装着されている。なお、本発明に用
いられる亜鉛粒子に表面全体が酸化亜鉛層より構成され
ており、内部灯金属亜鉛となっており酸化Ｉ＠鉛Ｊ６に
１０〜５０重歌ｒのものが好適する０
比峻例
酸化亜鉛粉末２２．５重１％と金属亜鉛６７．５重ｔ９
６を活物質とし、他に本発明電池（Ａ）と同様にし比ｆ
ｆ電池（８１を得之。第２図μ本発明電池ｔＡ）と比較
電池（８）のサイクル特性全示しｔものであり、本発明
電池（Ａｌのサイクル特性が改善されているのがわかる
□これは比較電池（８］における負極の場合、活物質と
して添加する金属亜鉛σ電解液にＭ接接する部分が大き
くデンドライトが発生しやすい−１またサイクルの進行
とともにこの部分ＶＣｔ着炬鉛が生長しゃすぐ、ま之金
属亜鉛粒子同志が充電時に融着しやすく巨大化しや丁い
条件にあると考えられる○一方木本発明電池へ框、金ｐ
Ｉ４岨鉛の表面に酸化亜鉛層を有し電解液の活物質粒子
内部への拡散性が低いので、充電時に表面の酸化亜鉛が
亜鉛ＶＣ還元爆れる際、亜鉛ζ球対杯で生長せず放峙）
線状に電着される。その結果亜鉛粒子表面がｔ着唾鉛と
酸化亜鉛の部分から溝底され、表面に酸化亜鉛が残存し
金属亜鉛粒子表面の巨大化が仰ｖ１される。さらに多数
の金属亜鉛表面が７！着の咳となり、均一な電着が可能
となりＩＡ指状亜沿が発生しにくく、サイクル特注が改
善され友と考えられる□
次に亜鉛粒子表面の酸化亜鉛層の重？９６を種々変化さ
せ之ものを負極活物質として電池全組み立て検討し几。(e) Function: Forms a zinc oxide layer on the surface of the zinc particles 1-C. When metal zinc is dissolved, evaporated, and aggregated in a reducing atmosphere, the surface of the metal zinc particles is oxidized. In conventional zinc oxide, most of the particles are oxidized and there is no metallic zinc part inside, but zinc particles with a zinc oxide layer formed on the surface have 100 lead metal parts inside. By using these zinc particles as an active material, the zinc oxide that is in contact with metallic zinc, which has all the electron conductivity during charging, is left behind by zinc, and as charging progresses, the metallic zinc part, which is a charging product, increases radially. This charging process forms a zinc oxide layer on the surface. Since a large number of VCt flows appear on the particle surface and local concentration of VCt flow is suppressed, it is possible to prevent the zinc active material particles from becoming gigantic. Since a large number of metallic zinc parts not covered with zinc oxide are formed, these become sludge during electrodeposition, resulting in uniform electrodeposited zinc and completely preventing the enlargement of zinc particles.Example active material A 25Mt% zinc oxide layer was formed on the surface to allow 90% of lead particles to fall off, and 5Mt% mercury oxide was added as an additive.
Water is added to a mixed powder made of composite resin 5fit96 as a binder and kneaded, and an active material sheet is produced using a roller and is adhered to a punched metal current collector. ) After pressure molding this! ! This was dried to obtain a zinc electrode, which was combined with a known sintered nickel positive electrode to assemble the core cell (A) of the present invention.) Figure 1 shows a longitudinal section of the battery (A) of the present invention. A zinc negative electrode whose active material is zinc particles with a zinc oxide layer formed on the surface of the il+, a 12In Nikel positive electrode, a 13;
It is wrapped in + and inserted into the outer can 141. fG+ is a conductive tab for the positive electrode, and is connected to the sealing body (the conductive tab for the negative electrode made by 17 manufacturers) and read directly to the outer can 14. The sealing body (51 is attached to the opening of the outer can (4) through the backing f'11'5. Note that the entire surface of the zinc particles used in the present invention is composed of a zinc oxide layer. The internal light is made of metal zinc, and it is preferable to use I oxide @ lead J6 with a weight of 10 to 50.
6 as the active material, and the ratio f
The cycle characteristics of the f battery (81 was obtained. Fig. 2 μ inventive battery tA) and the comparative battery (8) are fully shown, and it can be seen that the cycle characteristics of the inventive battery (Al) are improved. This is because in the case of the negative electrode in comparative battery (8), the part in contact with the metal zinc σ electrolyte added as an active material is large and dendrites are likely to occur. It is thought that the condition is such that the metal zinc particles easily fuse together during charging and become gigantic. On the other hand, Kimoto's invention battery has a frame, a gold plate, etc.
There is a zinc oxide layer on the surface of I4 lead, and the diffusion of the electrolyte into the active material particles is low, so when the zinc oxide on the surface is deoxidized to zinc VC during charging, it does not grow as a zinc ζ sphere. (broadcast)
Electrodeposited in a line. As a result, the surface of the zinc particle is grooved from the deposited lead and zinc oxide, and the zinc oxide remains on the surface, causing the surface of the metal zinc particle to become gigantic. 7 more metal zinc surfaces! This makes it possible to achieve uniform electrodeposition, making it difficult for IA finger-like formations to occur, improving cycle customization and being considered a good friend. Next, what about the weight of the zinc oxide layer on the surface of the zinc particles? We made various changes to 96 and examined the entire battery assembly using this material as the negative electrode active material.
このときのサイクル特性を第５図に示した。尚、サイク
ル条件ｆｌ−Ｃｍ流で５時間充定径、−Ｃ’ｌ流で放電
し電池電圧が１．Ｏｖに達した時放電を終了し電池容量
が電池初期容量に対して５０９６以下になっ之時点で放
電全停止し比。肩３肉より明らかに表面に酸化亜鉛層を
有する亜鉛粒子を負極活物質として用い之電池のサイク
ル特性が向上しているり表面の酸化亜鉛層が１０１ｉ量
％以下のときはこの亜鉛粒子の挙動が金属亜鉛粒子の挙
動に近くなり、デンドライトが発生しやすくまた巨大化
しやすくなる。まｔ過充１ｉ時にぼ表面の酸化亜鉛層が
充電されてしまい充電リザーブ敗が少なくなり、水素ガ
スが発生したりするという不都合がある。又、酸化加鉛
層が５０重量％以上のときに酸化亜鉛層を有する唾′ｉ
ｅ拉子の形状が金稍亜鉛の球状から、酸化亜鉛の結晶の
柱状となり、粒子の挙動も酸化亜鉛の挙動に近くなると
考えられるワこの酸化亜鉛層の割合の大きくなり之もの
ａ、電解液が加鉛粒子内部の金属亜鉛に唖渋しにくくな
ワ導１性が低下するので光寛効掲が低下しサイクル特性
が劣化する。したがって１０〜５０重：＃、９６の酸化
明鉛層７有するものが好ましい。The cycle characteristics at this time are shown in FIG. In addition, the battery voltage was 1.5 hours after charging under cycle conditions fl-Cm flow for 5 hours and discharging at -C'l flow. When Ov is reached, discharging is terminated, and when the battery capacity becomes 5096 or less compared to the initial capacity of the battery, discharging is completely stopped. It is clear from shoulder 3 that the cycle characteristics of the battery is improved by using zinc particles with a zinc oxide layer on the surface as the negative electrode active material, and when the surface zinc oxide layer is less than 101i%, the behavior of the zinc particles changes. The behavior is similar to that of metallic zinc particles, and dendrites are more likely to occur and grow larger. Furthermore, during overcharging 1i, the zinc oxide layer on the surface is charged, which reduces the charge reserve loss and generates hydrogen gas. In addition, when the lead oxide layer is 50% by weight or more, saliva having a zinc oxide layer
(e) The shape of the particles changes from the spherical shape of metallic zinc to the columnar shape of zinc oxide crystals, and the behavior of the particles is thought to be close to that of zinc oxide. The conductivity of the metal, which prevents the metal zinc inside the leaded particles from being aggravated, is reduced, resulting in a decrease in light efficiency and deterioration in cycle characteristics. Therefore, it is preferable to have 7 layers of 10 to 50 weight: #96 of 96 layers of bright lead oxide.
（ト） 発明の効果
表面に１０〜５０重量％の酸化亜鉛層を形成した亜鉛粒
子？負極の活物質として用いることにより、デンドライ
ト発生の核となる粒子の巨大化が生じにくく均一な核が
発生し電着亜鉛も均一になる友めデンドライトの発生、
活物質の巨大化が抑制されサイクル特性の丁ぐれたアル
カリ亜鉛蓄電池が得られるワ(g) Effects of the invention Zinc particles with a 10-50% by weight zinc oxide layer formed on the surface? By using it as the active material of the negative electrode, the particles that become the nucleus of dendrite generation are less likely to grow large, and uniform nuclei are generated, and the electrodeposited zinc is also uniform.
A method that suppresses the bulk of the active material and provides an alkaline zinc storage battery with excellent cycle characteristics.
第１図ζ本発明逝池の縦断面図、肩２図に本発明電池（
ＡＪと比較電池（８］のサイクル特性図、＠３図に表面
の酸化亜鉛の量とサイクル寿命との関係図である。
山・・・唾鉛負極、１２＋・・・ニッケル正極、（３）
・・・セパレータ、＋４１・・・外装缶、（５１・・・
封口体、（６＋・・・正極用４成タブ、（７）・・・負
極用導電タブ、１８；・・−熱収縮チューブ、＋９＋・
・・パ・Ｉキング。
本発明電池・・・（ＡＪ、比較電池・・・ｔＢ＋出頑人
三洋′也機株式会社Figure 1 is a vertical cross-sectional view of the battery of the present invention. Figure 2 shows the battery of the present invention (
Figure 3 shows the relationship between the amount of zinc oxide on the surface and the cycle life of AJ and comparative battery (8). Mountain: salivary lead negative electrode, 12+: nickel positive electrode, (3)
...Separator, +41...Exterior can, (51...
Sealing body, (6+...4-component tab for positive electrode, (7)...conductive tab for negative electrode, 18;...-heat shrink tube, +9+...
... Pa I King. Invention battery...(AJ, Comparative battery...tB+Deganjin Sanyo'yaki Co., Ltd.
Claims (1)
亜鉛層を形成した亜鉛粒子を用いることを特徴とするア
ルカリ亜鉛蓄電池。(1) An alkaline zinc storage battery characterized in that zinc particles having a 10 to 50% by weight zinc oxide layer formed on the surface thereof are used as the negative electrode active material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61103543A JPH079805B2 (en) | 1986-05-06 | 1986-05-06 | Alkaline zinc storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61103543A JPH079805B2 (en) | 1986-05-06 | 1986-05-06 | Alkaline zinc storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62262367A true JPS62262367A (en) | 1987-11-14 |
| JPH079805B2 JPH079805B2 (en) | 1995-02-01 |
Family
ID=14356753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61103543A Expired - Lifetime JPH079805B2 (en) | 1986-05-06 | 1986-05-06 | Alkaline zinc storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079805B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015046335A (en) * | 2013-08-29 | 2015-03-12 | 独立行政法人国立高等専門学校機構 | Zinc secondary battery suppressed in generation of dendrite |
-
1986
- 1986-05-06 JP JP61103543A patent/JPH079805B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015046335A (en) * | 2013-08-29 | 2015-03-12 | 独立行政法人国立高等専門学校機構 | Zinc secondary battery suppressed in generation of dendrite |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH079805B2 (en) | 1995-02-01 |
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