JPS62103972A - Manufacture of cathode plate for alkaline storage battery - Google Patents

Manufacture of cathode plate for alkaline storage battery

Info

Publication number
JPS62103972A
JPS62103972A JP60243705A JP24370585A JPS62103972A JP S62103972 A JPS62103972 A JP S62103972A JP 60243705 A JP60243705 A JP 60243705A JP 24370585 A JP24370585 A JP 24370585A JP S62103972 A JPS62103972 A JP S62103972A
Authority
JP
Japan
Prior art keywords
aqueous solution
nickel
hydroxide
plate
active material
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
Application number
JP60243705A
Other languages
Japanese (ja)
Inventor
Toshio Henmi
逸見　敏夫
Narifumi Matsuki
松木　成文
Makoto Konishi
真 小西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Corp
Original Assignee
Shin Kobe Electric Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shin Kobe Electric Machinery Co Ltd filed Critical Shin Kobe Electric Machinery Co Ltd
Priority to JP60243705A priority Critical patent/JPS62103972A/en
Publication of JPS62103972A publication Critical patent/JPS62103972A/en
Pending legal-status Critical Current

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
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/26—Processes of manufacture
    • H01M4/28—Precipitating active material on the carrier
    • 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

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

PURPOSE:To suppress the swelling of an active material, by using a low-concentration aqueous solution of cobalt nitrate to add cobalt into the active material to provide a layer of only cobalt hydroxide in nickel hydroxide. CONSTITUTION:A sintered nickel base plate of 50mm in length, 50mm in width and 0.55mm in thickness is immersed in an aqueous solution of nickel nitrate of 1.70 in specific gravity at a temperature of 50 deg.C for 20min, an active material is thereafter deposited on the plate by an alkaline aqueous solution of alkali, and the alkali is then washed away by water. This operation is performed again. The electrode plate is then immersed in an aqueous solution of cobalt nitrate of 1.20 in specific gravity at a temperature of 30 deg.C. This operation is also performed again. After that, charge is performed with an electrical current of 0.2cmA to the theoretical capacity of nickel hydroxide in an aqueous solution of potassium hydroxide of 31.2wt% in concentration for 10hr as the electrode plate and a nickel plate as the opposite electrode are used. Discharge is thereafter performed with an electrical current of 0.2cmA to the theoretical capacity of the nickel hydroxide in the aqueous solution of potassium hydroxide as the electrode plate and the nickel plate as the opposite electrode are used. This cycle of charge and discharge is repeated several times.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はアルカリ蓄電池用陽極板の製造法の改良に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to an improvement in the manufacturing method of anode plates for alkaline storage batteries.

従来の技術 従来、アルカリ蓄電池の陽極板は焼結基体を硝酸コバル
トを含有する硝酸ニッケル水溶液に浸漬し、次いでアル
カリ水溶液中に浸漬して焼結基体の細孔内に活物質を沈
着させる製造方法を用いて作られている。しかし、最近
の市場要求は前記製造方法で得た陽極板を用いた電池で
は満足せず、一層の高容量を望むものであり、この要求
を満たすためには、活物質の利用率を向上せしめること
が不可欠である。Conventional technology Conventionally, the anode plate of an alkaline storage battery is manufactured by immersing a sintered substrate in a nickel nitrate aqueous solution containing cobalt nitrate, and then immersing it in an alkaline aqueous solution to deposit the active material into the pores of the sintered substrate. is made using. However, recent market demands are not satisfied with batteries using the anode plate obtained by the above manufacturing method, and there is a desire for even higher capacity.In order to meet this demand, it is necessary to improve the utilization rate of the active material. It is essential that

発明が解決しようとする問題点 上記製造方法による陽極板の活物質中の水酸化コバルト
含有率は５〜ｌｏｗｔ％であり、利用率の向上は認めら
れるが電極の膨化が大きく極板の剥離が生じ、充放電サ
イクルの進行に伴い容量が劣化する欠点があった。Problems to be Solved by the Invention The content of cobalt hydroxide in the active material of the anode plate produced by the above manufacturing method is 5 to lowt%, and although an improvement in the utilization rate is observed, the swelling of the electrode is large and the peeling of the electrode plate may occur. However, there was a drawback that the capacity deteriorated as the charge/discharge cycle progressed.

問題点を解決するための手段 本発明は上記の如き欠点を除去するもので、活物質中へ
のコバルト添加を低濃度の硝酸コバルト水溶液を用いて
行ない、水酸化コバルト単独の居を水酸化ニッケル中に
存在せしめるものである。Means for Solving the Problems The present invention eliminates the above-mentioned drawbacks by adding cobalt to the active material using a low-concentration cobalt nitrate aqueous solution, and replacing cobalt hydroxide alone with nickel hydroxide. It is something that makes it exist inside.

作用 低濃度の硝酸コバルト水溶液を使用することにより活物
質中の水酸化コバルト含有率を低減せしめ電極の膨化を
抑制ケらしめる。By using a cobalt nitrate aqueous solution with a low concentration, the content of cobalt hydroxide in the active material is reduced and swelling of the electrode is suppressed.

実施例 本発明の一実施例を説明する。Example An embodiment of the present invention will be described.

ニッケル焼結基板（／？５０ｘｗ５０ＸｔＯ，５５）を
液温５０°Ｃ１比重１．７０の硝酸ニッケル水溶液に２
０分間浸漬せしめた後、アルカリ水溶液で活物質を沈着
させアルカリを水洗除去するという操作を２回くり返す
。次いでこの極板を比重１．２０、液温３０°Ｃの硝酸
コバルト水溶液中に浸漬させ以後前記と同様の操作を行
なう。この一連の操作を２回行ケった極板をニッケル板
を対極として３１．２Ｗｔｌの水酸化カリウム水溶液中
で水酸化ニッケルの理論容量に対し０．２ｃｍ　Ａ　Ｎ
流で１０時間充電を行４．た後、０．２　ＣｒＩｔＡｉ
ｔ流で放電を行なう充放電パターンを数回くり返し、極
板の膨化率を求めた。A nickel sintered substrate (/?50xw50XtO, 55) was placed in a nickel nitrate aqueous solution with a liquid temperature of 50°C and a specific gravity of 1.70.
After immersion for 0 minutes, the operation of depositing the active material with an alkaline aqueous solution and removing the alkali by washing with water is repeated twice. Next, this electrode plate was immersed in an aqueous cobalt nitrate solution having a specific gravity of 1.20 and a liquid temperature of 30°C, and the same operations as described above were carried out. After performing this series of operations twice, the electrode plate was placed in a 31.2 Wtl potassium hydroxide aqueous solution using a nickel plate as the counter electrode, at a density of 0.2 cm A N based on the theoretical capacity of nickel hydroxide.
4. Charge the battery for 10 hours under normal current. After that, 0.2 CrItAi
The charging and discharging pattern of discharging at t current was repeated several times, and the swelling ratio of the electrode plate was determined.

本発明による製造法から得られた陽極板（本発明品）の
膨化率は、従来の製造法から得られた陽極板（従来品）
より６憾減少している。The swelling ratio of the anode plate obtained by the production method according to the present invention (product of the present invention) is the same as that of the anode plate obtained by the conventional production method (conventional product).
This is a decrease of 6 points.

発明の効果 上述のように、本発明は活物質の膨化を抑制できる等工
業的価値きわめて大なるものである。Effects of the Invention As mentioned above, the present invention has extremely great industrial value, such as being able to suppress the swelling of active materials.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例と従来法とにより得られた陽
極板の膨化率の比較図である。FIG. 1 is a comparison diagram of the expansion ratio of anode plates obtained by an embodiment of the present invention and a conventional method.

Claims (1)

【特許請求の範囲】[Claims] 焼結基体を原料塩水溶液に浸漬させ、次いでアルカリ水
溶液中で焼結基体内に活物質として原料塩の水酸化物を
沈着せしめる操作を数回くり返す含浸工程において、原
料塩として硝酸ニッケル単体を使用して行なう操作と硝
酸コバルトを用い、かつ低濃度の硝酸コバルト水溶液と
して行なう操作を交互もしくは隔回ごとにくり返すこと
を特徴とするアルカリ蓄電池用陽極板の製造法。In an impregnation process in which the sintered substrate is immersed in an aqueous raw salt solution, and then the hydroxide of the raw salt is repeated several times in an alkaline aqueous solution to deposit the hydroxide of the raw salt as an active material inside the sintered substrate, simple nickel nitrate is used as the raw salt. 1. A method for producing an anode plate for an alkaline storage battery, characterized in that an operation using cobalt nitrate and an operation using cobalt nitrate as a low-concentration cobalt nitrate aqueous solution are repeated alternately or every other time.
JP60243705A 1985-10-30 1985-10-30 Manufacture of cathode plate for alkaline storage battery Pending JPS62103972A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60243705A JPS62103972A (en) 1985-10-30 1985-10-30 Manufacture of cathode plate for alkaline storage battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60243705A JPS62103972A (en) 1985-10-30 1985-10-30 Manufacture of cathode plate for alkaline storage battery

Publications (1)

Publication Number Publication Date
JPS62103972A true JPS62103972A (en) 1987-05-14

Family

ID=17107757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60243705A Pending JPS62103972A (en) 1985-10-30 1985-10-30 Manufacture of cathode plate for alkaline storage battery

Country Status (1)

Country Link
JP (1) JPS62103972A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6340255A (en) * 1986-08-06 1988-02-20 Sanyo Electric Co Ltd Sintered nickel electrode for alkaline storage battery
US7652313B2 (en) 2005-11-10 2010-01-26 International Business Machines Corporation Deep trench contact and isolation of buried photodetectors

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163753A (en) * 1983-03-08 1984-09-14 Sanyo Electric Co Ltd Manufacture of anode plate for alkali storage battery
JPS6271168A (en) * 1985-09-25 1987-04-01 Japan Storage Battery Co Ltd Nickel positive plate of alkali storage battery and its manufacture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163753A (en) * 1983-03-08 1984-09-14 Sanyo Electric Co Ltd Manufacture of anode plate for alkali storage battery
JPS6271168A (en) * 1985-09-25 1987-04-01 Japan Storage Battery Co Ltd Nickel positive plate of alkali storage battery and its manufacture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6340255A (en) * 1986-08-06 1988-02-20 Sanyo Electric Co Ltd Sintered nickel electrode for alkaline storage battery
JPH0677453B2 (en) * 1986-08-06 1994-09-28 三洋電機株式会社 Sintered nickel pole for alkaline storage battery
US7652313B2 (en) 2005-11-10 2010-01-26 International Business Machines Corporation Deep trench contact and isolation of buried photodetectors

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