JPS6028168A - Manufacture of negative plate for nickel cadmium storage battery - Google Patents

Manufacture of negative plate for nickel cadmium storage battery

Info

Publication number
JPS6028168A
JPS6028168A JP58137259A JP13725983A JPS6028168A JP S6028168 A JPS6028168 A JP S6028168A JP 58137259 A JP58137259 A JP 58137259A JP 13725983 A JP13725983 A JP 13725983A JP S6028168 A JPS6028168 A JP S6028168A
Authority
JP
Japan
Prior art keywords
impregnation
negative plate
cadmium
amount
storage battery
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
JP58137259A
Other languages
Japanese (ja)
Inventor
Takao Ogura
孝夫 小倉
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 JP58137259A priority Critical patent/JPS6028168A/en
Publication of JPS6028168A publication Critical patent/JPS6028168A/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 reduce clogging of pores through adhesion at the surface and increase amount of active substance for impregnation by utilizing immersing solution mixing the specified amount of cadmium acetate into cadmium nitric acid bath at the time of chemical impregnation of sintered type negative plate. CONSTITUTION:An immersing solution mixing cadmium acetate of 20% or more in the cadmium nitric acid bath is used at the time of chemical impregnation of sintered type negative plate. Thereby, clogging of pores at the surface of sintered body by adhesion at the surface can be reduced and amount of impregnation of active substance on the sintered type negative plate can be increased.

Description

【発明の詳細な説明】 本懐明はニッケル・カドミウム蓄電池用陰極板の改良に
関し、特に、化学含浸における焼結式陰極板の含浸量を
増大せんとするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in cathode plates for nickel-cadmium storage batteries, and in particular to increasing the amount of impregnation of sintered cathode plates in chemical impregnation.

一般に焼結式陰極板の製造法としては、化学含浸法、電
解含浸法および溶融含浸法が知られている。化学含浸法
は活物質をＣｄ　（ＯＨ）。Chemical impregnation methods, electrolytic impregnation methods, and melt impregnation methods are generally known as methods for manufacturing sintered cathode plates. The chemical impregnation method uses Cd(OH) as the active material.

化学含浸法は活物質利用率、生産性等利点が多い反面、
活物質含浸量が他の２方法に比べ劣っている。この活物
質含浸量が少ないという原因は、含浸法の原理自体に起
因する点が大きいが、他に表面付着による焼結体表面の
気孔の目詰り？ １こ起因する点も見逃すわけ曇こけいかない。Although the chemical impregnation method has many advantages such as active material utilization rate and productivity,
The amount of active material impregnated is inferior to the other two methods. The reason why the amount of active material impregnated is small is largely due to the principle of the impregnation method itself, but is it also due to clogging of pores on the surface of the sintered body due to surface adhesion? There's no way we'll overlook this one contributing factor.

本発明の目的は、化学含浸時の１ｍ液を硝酸カドミウム
浴中に２０％以上の酢酸カドミウムを混合させるととＩ
こより、表面付着ｔζよる気孔の目詰りを著しく減少さ
せ、活物質含浸量を増大させることにある。The purpose of the present invention is to mix 1 ml of chemical impregnation liquid into a cadmium nitrate bath with 20% or more cadmium acetate.
This aims to significantly reduce clogging of pores due to surface adhesion tζ and increase the amount of active material impregnated.

次に本発明の一実施例を説明する。Next, one embodiment of the present invention will be described.

第１図に活物質含浸重量のサイクル変化を示す。Ａは硝
酸カドミウム溶液の場合で、Ｂは４０チ酢酸カドミウム
−硝酸カドミウム混合溶液の場合である。３サイクル目
まではＡとＢともほぼ同等であるが、Ａは４サイクル目
以後、目詰りｉこよると思われる含浸量の頭打ち傾向か
みられる。これに対し、Ｂは６サイクル目でも頭打ち傾
向か現われない。この理由は第３図および第４図かられ
かるようこと、活物質であるｃｄ（ＯＨ）ｔの形状、大
きさ等１こ影響されると考えられる。第３図では数μｍ
からｌＱ７１ｍ程度の大きなＣｄ（ＯＨ）、結晶か生成
し、焼結体（符号３）表面がほとんどおおわれているこ
とがわかる。これに対し、第４図では非常１こ細かいｃ
ｄ（ＯＨ）ｔ　（符号４）が見られ、６サイクル目でも
焼結体の多（の部分力９表面ｔこ露出しまた。活物質含
浸量に対する酢酸カドミウムの混合割合に対する活物質
含浸量の影響を第２図に示す。このように２０チ以上酢
酸カドミウムを混合することにより含浸量が増加し、約
５０チでほぼ一定となる。FIG. 1 shows the cycle change in the weight of active material impregnated. A is a case of a cadmium nitrate solution, and B is a case of a mixed solution of 40 cadmium thiacetate and cadmium nitrate. Up to the 3rd cycle, both A and B are almost the same, but after the 4th cycle in A, there is a tendency for the amount of impregnation to reach a plateau, which is thought to be due to clogging. On the other hand, B does not show a tendency to reach a plateau even in the 6th cycle. The reason for this is thought to be influenced by the shape and size of the active material cd(OH)t, as shown in FIGS. 3 and 4. In Figure 3, several μm
It can be seen that large Cd(OH) crystals of about lQ71m were formed, and the surface of the sintered body (code 3) was almost covered. In contrast, in Figure 4, the c
d(OH)t (code 4) is observed, and even in the 6th cycle, the partial force 9 of the sintered body is exposed. The influence is shown in Figure 2. By mixing 20 or more cadmium acetate in this way, the amount of impregnation increases and becomes almost constant at about 50 tem.

上述のように、本発明によれば、化学含浸における焼結
式陰極板の含浸量を増大させることができる等工業的価
値共だ大なるものである。As described above, the present invention has great industrial value, such as being able to increase the amount of impregnation of a sintered cathode plate in chemical impregnation.

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

第１図は活物質含浸量の含浸サイクル依存性を示す曲線
図、第２図は活物質含浸量に対する酢酸濃度の影響を示
す曲線図、第３図は４０％酢酸カドミウム・硝酸カドミ
ウム混合溶液で含浸することｉこより得られた極板表面
の説明図、第４図は硝酸カドミウム溶液で含浸すること
により得られた極板表面の説明図である。 特許出願人Figure 1 is a curve diagram showing the impregnation cycle dependence of the amount of active material impregnated, Figure 2 is a curve diagram showing the influence of acetic acid concentration on the amount of active material impregnated, and Figure 3 is a curve diagram showing the influence of acetic acid concentration on the amount of active material impregnated. FIG. 4 is an explanatory view of the surface of the electrode plate obtained by impregnation with a cadmium nitrate solution. patent applicant

Claims (1)

【特許請求の範囲】[Claims] 焼結式陰極板化学含浸時において硝酸カドミウム洛中に
酢酸カドミウムを２０％以上混合した浸漬液を用いるこ
とを特徴とするニッケル・カドミウム蓄電池用論極板の
製造法。A method for manufacturing a logic electrode plate for a nickel-cadmium storage battery, characterized in that an immersion solution containing 20% or more of cadmium acetate in cadmium nitrate is used during chemical impregnation of a sintered cathode plate.
JP58137259A 1983-07-27 1983-07-27 Manufacture of negative plate for nickel cadmium storage battery Pending JPS6028168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58137259A JPS6028168A (en) 1983-07-27 1983-07-27 Manufacture of negative plate for nickel cadmium storage battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58137259A JPS6028168A (en) 1983-07-27 1983-07-27 Manufacture of negative plate for nickel cadmium storage battery

Publications (1)

Publication Number Publication Date
JPS6028168A true JPS6028168A (en) 1985-02-13

Family

ID=15194483

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58137259A Pending JPS6028168A (en) 1983-07-27 1983-07-27 Manufacture of negative plate for nickel cadmium storage battery

Country Status (1)

Country Link
JP (1) JPS6028168A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5165334A (en) * 1974-10-21 1976-06-05 Western Electric Co Nitsukeru kadomiumuchikudenchono kadomiumudenkyokunoseizohoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5165334A (en) * 1974-10-21 1976-06-05 Western Electric Co Nitsukeru kadomiumuchikudenchono kadomiumudenkyokunoseizohoho

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