JPS60131766A - Positive plate for alkaline battery - Google Patents
Positive plate for alkaline batteryInfo
- Publication number
- JPS60131766A JPS60131766A JP58241496A JP24149683A JPS60131766A JP S60131766 A JPS60131766 A JP S60131766A JP 58241496 A JP58241496 A JP 58241496A JP 24149683 A JP24149683 A JP 24149683A JP S60131766 A JPS60131766 A JP S60131766A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- nickel
- spherical
- porous body
- paste
- 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
- 239000002245 particle Substances 0.000 claims abstract description 31
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 22
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 claims abstract description 15
- 239000011149 active material Substances 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 2
- 239000013078 crystal Substances 0.000 abstract description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 abstract description 2
- 239000007868 Raney catalyst Substances 0.000 abstract 2
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 abstract 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000011737 fluorine Substances 0.000 abstract 1
- 229910052731 fluorine Inorganic materials 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000012798 spherical particle Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 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
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
-
- 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)
- Inorganic Chemistry (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】
、本発明は水酸化ニッケル粉末、を主体とする活物質粉
末をニッケル網あるいは三次１元、的に、、５連続した
スポンジ状ニッケル多孔体等の活物質支持体に直接塗布
して成るアルカリ電池用正轡板の改良に関するものであ
り、水酸化ニッケル粉末の粒子形状が球状あるいは球に
近似したものを用いることによってエネルギー密度の極
めて高い正極板を提供することを目的とするものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an active material support such as a nickel mesh, three-dimensional, one-dimensional, five-continuous sponge-like nickel porous body, etc. by applying an active material powder mainly consisting of nickel hydroxide powder. This relates to the improvement of a positive electrode plate for alkaline batteries that is formed by direct coating, and the purpose is to provide a positive electrode plate with extremely high energy density by using nickel hydroxide powder whose particle shape is spherical or similar to a sphere. That is.
ニッケル網や三次元的に連続し□た＃４造を１ｉするス
ポンジ状ニッケル多孔体等の活物質支持体に正１極活！
黄で曹漕、、水酸化、２ツケルの粒子！結着剤と共に直
接塗布して得られや７）ｐａす５電、池用正極板は、ｎ
容量化を図ることができると共に製造方法が極めて簡便
になり、連続工程が可能で経済的にも有利である。その
場合に用いる水酸化ニッケル、粉末の粒子の脚状や大き
さ、によっては正極板の工ニッケル多孔体にペースト状
活物質を容易に充填するためには用いる活物質粒子はあ
る程度小さいは、うが、望まし、いと！えられる。すな
わち、活物質の粒子径が牽孔体の孔径ど比較して小さい
ほど多孔竺を骨格によって受ける抵抗力が小さくなるた
めに、ペーストが容易に充填されるものど考えられる。A positive monopolar active material support such as a nickel mesh or a sponge-like porous nickel material with three-dimensionally continuous #4 structures!
Cao Cao in yellow, hydroxide, 2 particles! 7) Positive electrode plates for PA5 batteries and batteries can be obtained by applying directly with a binder.
The capacity can be increased, the manufacturing method is extremely simple, and a continuous process is possible, which is economically advantageous. Depending on the leg shape and size of the nickel hydroxide and powder particles used in this case, the active material particles used may be small to a certain extent in order to easily fill the paste-like active material into the porous nickel material of the positive electrode plate. However, it is desirable! available. That is, it is thought that the smaller the particle size of the active material is compared to the pore size of the pore structure, the smaller the resistance force exerted by the skeleton on the porous structure, and therefore the paste can be easily filled.
しかしながら活物質の粒子径が小さくなるとその比表面
積が増大する。すなわち、従来から用いられている水酸
化ニッケル粉末は、粉砕によってその粉末の粒子径を小
さくする場合には粒子形状が不規則になり、しかも粒子
表面の凹凸が多くなる。また、小さな粒子を中和反応等
によって製作する場合にも、結晶成長の方向が不均一に
なるために粒子形状は不規則になる。いずれの＠谷も粒
子の比表面積が増大して粒子表面に吸着される液体の聞
が多くなるために、同一の粘度を有するペーストを得る
ためには、粒子径が小さいほど多くの練液を必要とし、
ペースト中の活物質粒子の含有率が低下することになる
。したがって、多孔体中にペーストが充填されや°す°
くなっても、実際のエネルギー密ｆ１ｔ＆を向上しない
ことになる。However, as the particle size of the active material decreases, its specific surface area increases. That is, when the particle size of the conventionally used nickel hydroxide powder is reduced by pulverization, the particle shape becomes irregular and moreover, the particle surface becomes more uneven. Furthermore, when small particles are produced by a neutralization reaction or the like, the shape of the particles becomes irregular because the direction of crystal growth becomes non-uniform. In both @ valleys, the specific surface area of the particles increases and more liquid is adsorbed on the particle surface, so in order to obtain a paste with the same viscosity, the smaller the particle size, the more liquid is required. need,
The content of active material particles in the paste will decrease. Therefore, the paste is easily filled into the porous body.
Even if it becomes, the actual energy density f1t& will not be improved.
本発明はこのような欠点を除去して正極板のエネルギー
密度を向上させるためになされたものであり、球状ある
いは球に近似した粒子形状を有ｌる水酸化ニッケル粉末
を用いると正極板のエネルギー密度が著しく向上するこ
とを見い出したことに基づくものである。The present invention was made in order to eliminate such drawbacks and improve the energy density of the positive electrode plate. By using nickel hydroxide powder having a spherical or approximately spherical particle shape, the energy density of the positive electrode plate can be improved. This is based on the discovery that the density is significantly improved.
以下、本発明の実施例ならびにその効果を詳述する。Examples of the present invention and its effects will be described in detail below.
本発明による正極板は次のようにして製作した。A positive electrode plate according to the present invention was manufactured as follows.
まず、球状の粒子形状を有する水酸化ニッケル粉末８０
部とカーボニルニッケル粉末１０部とシ１つ酸コバルト
を水素還元して得たコバルト粉末１０部との混合粉末を
カルボキシメチルセルロース水溶液でペースト化し、こ
のペースＩ−を平均孔径０．３麟■、多孔［９６％、厚
さ１．１−のスポンジ状ニッケル多孔体に充填したのも
８０℃で１時間乾燥する。First, nickel hydroxide powder 80 having a spherical particle shape
A mixed powder of 10 parts of carbonyl nickel powder and 10 parts of cobalt powder obtained by hydrogen reduction of cobalt silicate was made into a paste with an aqueous carboxymethyl cellulose solution, and this paste I was made into a paste with an average pore diameter of 0.3 mm and a porous [96%, the sponge-like porous nickel material with a thickness of 1.1 mm was filled and dried at 80° C. for 1 hour.
つぎに）ツ素樹脂の分散液に浸漬してから再び８０℃で
１時国乾燥した後、５ＱＱＫＱ／ａｉｉの圧力でプレス
して本発明による正極板へを得た。 ゛なお、ここで球
状の粒子形状を有する水酸化ニッケル粉末は、−例とし
て中和反応によって水酸化ニッケルを生成させる際に、
核となる微細な水゛ 酸化二ツクル粒子を分散させて徐
々に反応を進１１させることによって核の周囲に均一な
結晶を成長させて粒子形状を球状にする方法を用いて製
作した。Next) After immersing in a dispersion of tsunoresin, drying again at 80° C. for 1 hour, and pressing at a pressure of 5QQKQ/aii, a positive electrode plate according to the present invention was obtained.゛It should be noted that the nickel hydroxide powder having a spherical particle shape is used for producing nickel hydroxide through a neutralization reaction.
It was manufactured using a method in which fine water oxide particles serving as a core are dispersed and the reaction is gradually accelerated11, thereby growing uniform crystals around the core and making the particle shape spherical.
比較のために、粒子ａｍの凹凸が多い通常用いられる水
酸化ニッケル粉末を用いた従来法による正極板Ｂを製作
した。これらの正極板を製作する００μから２５μに変
また場ｂ”の、充填に適した粘度のペーストを得るため
ｉ必！Ｉｄ練液の量の変化及０充１ｔｍからめたエネル
ギー重置の変”化をそ゛れｉれ第１図及び第２図に示會
。 ゛
第１図から本発明による正極板の場合は従来法のものと
□比較して必要とする練液の量が少いことがわかる。こ
れは粒子形−が球状であるルめに、その比表面積が著し
く小さいことによるものと考えられる。For comparison, a positive electrode plate B was manufactured using a conventional method using a commonly used nickel hydroxide powder in which the particles am have many irregularities. In order to produce these positive electrode plates from 00μ to 25μ and to obtain a paste with a viscosity suitable for filling, it is necessary to change the amount of mixing solution and change the energy concentration from 0 to 1t. The differences are shown in Figures 1 and 2. It can be seen from FIG. 1 that the positive electrode plate according to the present invention requires a smaller amount of mixing solution than the conventional method. This is thought to be due to the fact that the particle shape is spherical and the specific surface area is extremely small.
また第２図からはエネルギー密度が従来法のものよりち
苔しく向上することがわかる。特に粒子径が小さい場合
に従来法との門が大きくな・ている。この理由はらぎの
よう□に考え□られる。Furthermore, it can be seen from FIG. 2 that the energy density is significantly improved compared to that of the conventional method. Particularly when the particle size is small, the gap with conventional methods becomes large. The reason for this can be thought of as □ as if it were □.
すなわち、平均粒□子゛径が１００μ程°度の尿酸化ニ
ッケル粉末を用いた場合は′粒子が大きいために”多孔
体中にペーストが充分に充填できない。従来の水酸化ニ
ッケル粉末を用いた□場合には、粒子径が７０μ程直に
小さくなるとベニストが充填しやｔ’くなるためにエネ
ルギー密度が若干向上するが、粒子径がさらに小さくな
ると粒子の比表面積の増大によって練液の量が増加゛す
るためにエネルギー密度が著しく低下する。一方、本発
明のように球状の粒子形状ｉ′！する水酸化ニッケル粉
末を用いた場合には、粒子径が２５〜７０′μ程億に小
さくなってもそ”め比表面積が極めて小さいために、粒
子径が小さくなることによって練液の量が増゛加するた
めに活−質粒子の゛含有゛率が低下づることより′も、
粒子径が小さい□÷めにスーストが充填しやす゛くなる
′ととによってペーストが充分に充填さ孔る□゛効果□
方が大きいの省エネルギー密１１１が向上するものと考
えられる。In other words, when using urinary nickel oxide powder with an average particle diameter of about 100μ, the paste cannot be sufficiently filled into the porous body because the particles are large. In the case of On the other hand, when nickel hydroxide powder with a spherical particle shape is used as in the present invention, the particle size increases from 25 to 70 μm. Even if the particle size becomes smaller, the specific surface area is extremely small, and as the particle size becomes smaller, the amount of mixing solution increases and the content rate of active particles decreases.
The smaller the particle size □÷, the easier it is to fill the soot, which allows the paste to fill the holes sufficiently □゛effect□
It is considered that the larger the value, the higher the energy saving density 111 will be.
以上のように本発明によるとニッケル網やスポンジ状ニ
ッケル多□孔体等の活物質支持体に活物質粉末を直接塗
布して成る正極板のエネルギー晶痕を著しく゛向゛上さ
せることができる。As described above, according to the present invention, it is possible to significantly improve the energy crystal traces of a positive electrode plate formed by directly applying active material powder to an active material support such as a nickel mesh or a sponge-like porous nickel material. can.
゛なお、゛本発“明の実−例では活物質支持体としてス
ポンジ□状□ニッケル多孔体を用いたが、活物質支持体
として゛ニッケル網や多孔状ニッケル板を用いて活物！
Ｉｉ幼末を塗布した場合にも同様の効果が得られる。゛In addition, ゛In the actual example of the present invention, a sponge □-shaped □ nickel porous body was used as the active material support, but a ``nickel net or porous nickel plate was used as the active material support.
A similar effect can be obtained when Ii young powder is applied.
第１図及び第２図はそれぞれ、用いる水酸化ニッケルの
平均粒子径を変えた場合のペースト化に必要な練液ｍの
変化及びエネルギー密度の変化を示した図である。FIGS. 1 and 2 are diagrams showing changes in the mixing solution m and energy density required for paste formation, respectively, when the average particle diameter of the nickel hydroxide used is changed.
Claims (1)
ッケル網あるいは三次元的に連続したスポンジ状ニッケ
ル多孔体等の活物１．質１．支神体に塗、布して成る正
轡板であ°て・前記水酸化２ツケル粉末の粒子形状が球
状あるいは球５に近似しす林であることを特徴とするア
ルカリ電池用正極板。 ２０．水−化ニッケル粉末の平均粒子径が２５〜７０μ
で、あることを特徴とする特許請求の範囲第１項記載の
アルカリ電池用正極板。[Scope of Claims] 1. An active material powder containing nickel hydroxide powder as a main tank, such as a nickel mesh or a three-dimensionally continuous sponge-like nickel porous body. Quality 1. 1. A positive electrode plate for an alkaline battery, characterized in that the shape of the particles of the hydroxide powder is spherical or has a shape similar to a sphere 5. 20. The average particle size of hydrated nickel powder is 25 to 70μ
A positive electrode plate for an alkaline battery according to claim 1, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58241496A JPS60131766A (en) | 1983-12-20 | 1983-12-20 | Positive plate for alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58241496A JPS60131766A (en) | 1983-12-20 | 1983-12-20 | Positive plate for alkaline battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60131766A true JPS60131766A (en) | 1985-07-13 |
Family
ID=17075183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58241496A Pending JPS60131766A (en) | 1983-12-20 | 1983-12-20 | Positive plate for alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60131766A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62136761A (en) * | 1985-12-10 | 1987-06-19 | Matsushita Electric Ind Co Ltd | Manufacture of nickel electrode for alkaline battery |
| JPS63124373A (en) * | 1986-11-12 | 1988-05-27 | Sanyo Electric Co Ltd | Electrode for battery |
| JPH01187768A (en) * | 1988-01-19 | 1989-07-27 | Yuasa Battery Co Ltd | Nickel electrode for alkali battery |
| JPH01260762A (en) * | 1988-04-11 | 1989-10-18 | Yuasa Battery Co Ltd | Nickel electrode for alkaline battery and battery using same |
| EP0544011A1 (en) * | 1991-06-14 | 1993-06-02 | Yuasa Corporation | Nickel electrode for alkali storage batteries |
-
1983
- 1983-12-20 JP JP58241496A patent/JPS60131766A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62136761A (en) * | 1985-12-10 | 1987-06-19 | Matsushita Electric Ind Co Ltd | Manufacture of nickel electrode for alkaline battery |
| JPH0732013B2 (en) * | 1985-12-10 | 1995-04-10 | 松下電器産業株式会社 | Nickel electrode manufacturing method for alkaline batteries |
| JPS63124373A (en) * | 1986-11-12 | 1988-05-27 | Sanyo Electric Co Ltd | Electrode for battery |
| JPH01187768A (en) * | 1988-01-19 | 1989-07-27 | Yuasa Battery Co Ltd | Nickel electrode for alkali battery |
| JPH0568068B2 (en) * | 1988-01-19 | 1993-09-28 | Yuasa Battery Co Ltd | |
| JPH01260762A (en) * | 1988-04-11 | 1989-10-18 | Yuasa Battery Co Ltd | Nickel electrode for alkaline battery and battery using same |
| JPH0724218B2 (en) * | 1988-04-11 | 1995-03-15 | 株式会社ユアサコーポレーション | Nickel electrode for alkaline battery and battery using the same |
| EP0544011A1 (en) * | 1991-06-14 | 1993-06-02 | Yuasa Corporation | Nickel electrode for alkali storage batteries |
| EP0544011A4 (en) * | 1991-06-14 | 1995-04-26 | Yuasa Battery Co Ltd |
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