JPH01120763A - Manufacture of anode plate for alkaline storage battery - Google Patents
Manufacture of anode plate for alkaline storage batteryInfo
- Publication number
- JPH01120763A JPH01120763A JP62276967A JP27696787A JPH01120763A JP H01120763 A JPH01120763 A JP H01120763A JP 62276967 A JP62276967 A JP 62276967A JP 27696787 A JP27696787 A JP 27696787A JP H01120763 A JPH01120763 A JP H01120763A
- Authority
- JP
- Japan
- Prior art keywords
- active material
- electrolytic reduction
- anode plate
- alkaline storage
- chemical impregnation
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000003860 storage Methods 0.000 title claims description 5
- 239000011149 active material Substances 0.000 claims abstract description 19
- 238000005470 impregnation Methods 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 238000011946 reduction process Methods 0.000 abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 1
- XIEPJMXMMWZAAV-UHFFFAOYSA-N cadmium nitrate Inorganic materials [Cd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XIEPJMXMMWZAAV-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- NMHMNPHRMNGLLB-UHFFFAOYSA-N phloretic acid Chemical compound OC(=O)CCC1=CC=C(O)C=C1 NMHMNPHRMNGLLB-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- H01M4/24—Electrodes for alkaline accumulators
- H01M4/26—Processes of manufacture
- H01M4/28—Precipitating active material on the carrier
-
- 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
- H01M4/29—Precipitating active material on the carrier by electrochemical methods
-
- 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
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、アルカリ蓄電池用陰極板の製造方法の改良に
関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an improvement in a method for manufacturing a cathode plate for an alkaline storage battery.
従来の技術
従来アルカリ蓄電池の陰極板は、多孔性ニッケル焼結基
体を所定の活物質塩水溶液に浸漬し９次いでアルカリ溶
液中で基体の細孔内の塩を水酸化物に置換する工程を数
回繰り返えし、活物質を沈着せしめる化学含浸方法が一
般的に行なわれている。しかし、高容量化という最近の
市場性から陰極板の容量向上が望まれ、活物質充填量を
増加させることが不可欠となった。Conventional technology Conventionally, the cathode plate of an alkaline storage battery is manufactured using several steps in which a porous sintered nickel substrate is immersed in an aqueous solution of a predetermined active material salt, and then the salt in the pores of the substrate is replaced with hydroxide in an alkaline solution. A chemical impregnation method in which the active material is repeatedly deposited is commonly used. However, due to the recent marketability of higher capacity, it is desired to improve the capacity of the cathode plate, and it has become essential to increase the amount of active material filled.
発明が解決しようとする問題点
上記製造方法においては、活物質充填を化学反応を利用
しているため、置換反応が焼結基板の表面付近より起り
、７回程度の含浸工程で表面付近で目詰り現象が現われ
てしまい、以後含浸工程を行なっても活物質はほとんど
充填されず、必要とされる活物質量が得られない欠点を
有していた。Problems to be Solved by the Invention In the above manufacturing method, since a chemical reaction is used for filling the active material, a substitution reaction occurs near the surface of the sintered substrate, and the reaction occurs near the surface after about 7 impregnation steps. A clogging phenomenon occurs, and even if a subsequent impregnation step is performed, the active material is hardly filled, resulting in a drawback that the required amount of active material cannot be obtained.
問題点を解決するための手段
本発明は上記欠点を除去するもので、化学含浸工程サイ
クルの途中に電解還元の工程を導入するものである。Means for Solving the Problems The present invention eliminates the above drawbacks by introducing an electrolytic reduction step in the middle of the chemical impregnation cycle.
作用
化学含浸方法で充填された活物質が電解還元により水酸
化物から金属へと置換することによって結晶径が小さく
なり、目づまり現象が消失し焼結充填効率が向上する。The active material filled by the chemical impregnation method replaces hydroxide with metal by electrolytic reduction, which reduces the crystal size, eliminates the clogging phenomenon, and improves the sintering filling efficiency.
実施例
多孔性ニッケル焼結基板（ｔ３４ＸＷ５０Ｘｔｏ、５５
）を比重１８０の硝酸カドミウム水溶液に３０分間浸漬
し２次に５０℃の温風乾燥機で５分間乾燥させた後、
２Ｑｗｔ％水酸化ナトリウム水溶液中で活物質を沈着
させ、アルカリを水洗するという化学含浸操作を７サイ
クル行なった後、ニッケル板を対極で１時間充電を行な
った後、アルカリを水洗し再び化学含浸を１サイクル行
ない＋ ２０Ｗｔ ′Ｘ；の水酸化ナトリウム水溶液中
で１．５ｃｍＡで充電し、後に１ｃｍＡで放電する化成
を行なって陰極板を作製した。このような陰極板は活物
質の充填率を向上させろことができるので、陰極板の容
量が向上する。Example porous nickel sintered substrate (t34XW50Xto, 55
) was immersed in a cadmium nitrate aqueous solution with a specific gravity of 180 for 30 minutes, and then dried for 5 minutes in a hot air dryer at 50°C.
After 7 cycles of chemical impregnation in which the active material was deposited in a 2Qwt% aqueous sodium hydroxide solution and the alkali was washed with water, the nickel plate was charged with the counter electrode for 1 hour, the alkali was washed with water, and the chemical impregnation was carried out again. A cathode plate was prepared by conducting one cycle, charging at 1.5 cmA in an aqueous sodium hydroxide solution of +20 Wt'X, and then discharging at 1 cmA. Since such a cathode plate can improve the filling rate of active material, the capacity of the cathode plate is improved.
なお図面は化学含浸を８サイクル行なった際における活
物質充填量の比較図でＡは本発明による製造方法での陰
極板であり、Ｂは従来の製造方法での陰極板である。The drawings are comparative diagrams of the amount of active material filled after 8 cycles of chemical impregnation, and A is a cathode plate prepared by the manufacturing method of the present invention, and B is a cathode plate prepared by the conventional manufacturing method.
発明の効果
上述したように９本発明によれば、活物質の充填量を増
加せしめることが出来るため陰極板の容量が向上する等
工業的価値きわめて大なるものである。Effects of the Invention As described above, according to the present invention, the amount of active material filled can be increased, so that the capacity of the cathode plate can be improved, and the industrial value is extremely large.
電図面は本発明による陰極板と従来の陰極板との化学含
浸を８サイクル行なった際における活物質充填量の比較
図である。
特許出願人 新神戸電機株式会社
代表取締役 齋 木 畢The electrical diagram is a comparison diagram of the amount of active material filled when the cathode plate according to the present invention and a conventional cathode plate were subjected to eight cycles of chemical impregnation. Patent applicant Shin-Kobe Electric Co., Ltd. Representative Director Saiki Bi
Claims (1)
蓄電池用陰極板の製造工程において、化学含浸方法によ
る活物質の充填工程におけるサイフル途中に電解還元工
程を導入することを特徴とするアルカリ蓄電池用陰極板
の製造方法。A method for use in alkaline storage batteries characterized by introducing an electrolytic reduction step in the middle of the filling step in the active material filling step using a chemical impregnation method in the manufacturing process of a cathode plate for alkaline storage batteries in which a porous nickel sintered substrate is filled with an active material. Method of manufacturing cathode plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62276967A JPH01120763A (en) | 1987-10-30 | 1987-10-30 | Manufacture of anode plate for alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62276967A JPH01120763A (en) | 1987-10-30 | 1987-10-30 | Manufacture of anode plate for alkaline storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01120763A true JPH01120763A (en) | 1989-05-12 |
Family
ID=17576907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62276967A Pending JPH01120763A (en) | 1987-10-30 | 1987-10-30 | Manufacture of anode plate for alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01120763A (en) |
-
1987
- 1987-10-30 JP JP62276967A patent/JPH01120763A/en active Pending
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