JPS63136466A - Manufacture of sintered cadmium anode plate for alkaline battery - Google Patents
Manufacture of sintered cadmium anode plate for alkaline batteryInfo
- Publication number
- JPS63136466A JPS63136466A JP61282457A JP28245786A JPS63136466A JP S63136466 A JPS63136466 A JP S63136466A JP 61282457 A JP61282457 A JP 61282457A JP 28245786 A JP28245786 A JP 28245786A JP S63136466 A JPS63136466 A JP S63136466A
- Authority
- JP
- Japan
- Prior art keywords
- active material
- cadmium
- immersed
- aqueous solution
- sintered
- 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
- 229910052793 cadmium Inorganic materials 0.000 title claims description 8
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011149 active material Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 11
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- PLLZRTNVEXYBNA-UHFFFAOYSA-L cadmium hydroxide Chemical compound [OH-].[OH-].[Cd+2] PLLZRTNVEXYBNA-UHFFFAOYSA-L 0.000 claims abstract description 8
- XIEPJMXMMWZAAV-UHFFFAOYSA-N cadmium nitrate Inorganic materials [Cd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XIEPJMXMMWZAAV-UHFFFAOYSA-N 0.000 claims abstract description 8
- NMHMNPHRMNGLLB-UHFFFAOYSA-N phloretic acid Chemical compound OC(=O)CCC1=CC=C(O)C=C1 NMHMNPHRMNGLLB-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007864 aqueous solution Substances 0.000 claims abstract description 7
- 239000012670 alkaline solution Substances 0.000 claims abstract description 6
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 5
- 230000003472 neutralizing effect Effects 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- -1 alkaline earth metal salt Chemical class 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims 1
- 229910017604 nitric acid Inorganic materials 0.000 claims 1
- 239000013078 crystal Substances 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 abstract 2
- 229910002651 NO3 Inorganic materials 0.000 abstract 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 description 2
- 241000255789 Bombyx mori Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000001661 cadmium Chemical class 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000005406 washing Methods 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
- H01M4/24—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
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ニッケル・カドニウム陰極板などのアルカリ
電池に用いるカドニウム陰極板の製法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing cadmium cathode plates for use in alkaline batteries, such as nickel-cadmium cathode plates.
従来の技術
従来、焼結式カドミウム陰極板を製造するに際して、陰
極板へ充填する活物質は水酸化カドミウムが主体であり
、その充填方法としては多孔性のニッケル焼結板を硝酸
カドミウムの入った槽へ浸漬し、アルカリ溶液中で電解
処理して水酸化カドミウムに転化する工程を数回繰り返
す方法かアルカリ溶液で中和する工程を繰り返す方法が
行われている。Conventional technology Conventionally, when manufacturing a sintered cadmium cathode plate, the active material filled into the cathode plate was mainly cadmium hydroxide, and the filling method was to fill a porous sintered nickel plate with cadmium nitrate. The process of immersing it in a tank and electrolytically treating it in an alkaline solution to convert it into cadmium hydroxide is repeated several times, or the process of neutralizing it with an alkaline solution is repeated.
発明が解決しようとする問題点
活物質である水酸化カドミウムは、充放電サイクルを繰
り返し行なうと、活物質の結晶が粗大化し、脱落する欠
点があり、且つ極板の電導度が下がり、活物質の利用率
が低下するという問題があった。Problems to be Solved by the Invention Cadmium hydroxide, which is an active material, has the disadvantage that when repeated charge/discharge cycles are performed, the crystals of the active material become coarse and fall off, and the conductivity of the electrode plate decreases, causing the active material to deteriorate. There was a problem that the utilization rate of the system was decreasing.
問題点を解決するための手段
本発明は上記の問題点を解決すべくなされたもので、硝
酸カドミウムを主成分とした水溶液に少量のアルカリ土
類金属塩を添加しておき、これに多孔性ニッケル焼結板
を浸漬し、次いでアルカリで中和して水酸化物に転化し
活物質として充填することを特徴とするものである。Means for Solving the Problems The present invention has been made to solve the above problems, and involves adding a small amount of alkaline earth metal salt to an aqueous solution containing cadmium nitrate as its main component, and adding a porous solution to the solution. This method is characterized by immersing a sintered nickel plate, then neutralizing it with an alkali to convert it into hydroxide, which is then filled as an active material.
作用
本発明は上記の特徴を有することにより、充ができるも
のである。Function The present invention can be fulfilled by having the above-mentioned features.
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.
硝酸カドミウムを主成分とした水溶液中にマグネシウム
塩を少量添加して浸漬槽に入れておき、液温を例えば３
０℃に維持しながら、該浸漬槽へ多孔性ニッケル焼結板
を所定時間浸漬し、引き上げて多孔性ニッケル焼結板中
にカドミウム塩が固定するように例えば５０℃中で乾燥
を行ない、次いでアルカリ液槽に入れ中和して、水酸化
カドミウムに転化し、イオン交換水もしくは水道水で水
洗を行うという工程を繰り返し、多孔性ニッケル焼結板
に水酸化カドミウム蚕活物質として充填した。A small amount of magnesium salt is added to an aqueous solution containing cadmium nitrate as the main component, and the solution is placed in an immersion bath.
The porous nickel sintered plate is immersed in the dipping tank for a predetermined time while maintaining the temperature at 0°C, and then pulled out and dried at, for example, 50°C so that the cadmium salt is fixed in the porous nickel sintered plate, and then The process of neutralizing it in an alkaline solution bath, converting it to cadmium hydroxide, and washing it with ion-exchanged water or tap water was repeated, and a porous nickel sintered plate was filled with cadmium hydroxide as a silkworm active material.
本発明により得られた焼結式カドミウム陰極板と従来法
により得られた焼結式カドミウム陰ｈ・板について活物
質利用率の変化を第１図に示した。FIG. 1 shows changes in active material utilization for the sintered cadmium negative plate obtained by the present invention and the sintered cadmium negative plate obtained by the conventional method.
本発明によるものは充放電サイクルによる劣下が少ない
ことがわかる。It can be seen that the battery according to the present invention exhibits little deterioration due to charge/discharge cycles.
発明の効果
上述したように、本発明によれば、水酸化カドミウムを
主体とする活物質の他にアルカリ土類金属を少量添加す
ることにより、活物質の粗大化や電導塵の低下を抑え活
物質の利用率で高めることが出来る点、焼結式カドミウ
ム陰極板の製法において工業的価値甚大なるものである
。Effects of the Invention As described above, according to the present invention, by adding a small amount of alkaline earth metal in addition to the active material mainly consisting of cadmium hydroxide, the coarsening of the active material and the reduction of conductive dust can be suppressed. This method has great industrial value in the production method of sintered cadmium cathode plates in that it can increase the utilization rate of materials.
第１図は本発明法により得た陰極板と従来法により得た
陰極板についての公称容量のＩＣ充電、１．５０放電に
よる単極充放電特性の比較図である。FIG. 1 is a comparison diagram of the unipolar charge-discharge characteristics of a cathode plate obtained by the method of the present invention and a cathode plate obtained by the conventional method at nominal capacity IC charging and 1.50 discharge.
Claims (1)
、次いでアルカリ溶液中で中和して、水酸化カドミウム
に転化する工程を繰り返し、前記焼結板に活物質を充填
する工程において、予め前記硝酸カドミウム水溶液中に
アルカリ土類金属塩を添加しておくことを特徴とするア
ルカリ電池用焼結式カドミウム陰極板の製法。The process of immersing a porous nickel sintered plate in an aqueous cadmium nitrate solution and then neutralizing it in an alkaline solution to convert it into cadmium hydroxide is repeated, and in the process of filling the sintered plate with an active material, the nitric acid A method for producing a sintered cadmium cathode plate for an alkaline battery, characterized by adding an alkaline earth metal salt to a cadmium aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61282457A JPS63136466A (en) | 1986-11-27 | 1986-11-27 | Manufacture of sintered cadmium anode plate for alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61282457A JPS63136466A (en) | 1986-11-27 | 1986-11-27 | Manufacture of sintered cadmium anode plate for alkaline battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63136466A true JPS63136466A (en) | 1988-06-08 |
Family
ID=17652671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61282457A Pending JPS63136466A (en) | 1986-11-27 | 1986-11-27 | Manufacture of sintered cadmium anode plate for alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63136466A (en) |
-
1986
- 1986-11-27 JP JP61282457A patent/JPS63136466A/en active Pending
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