JPH06101350B2 - Nickel cadmium alkaline storage battery - Google Patents
Nickel cadmium alkaline storage batteryInfo
- Publication number
- JPH06101350B2 JPH06101350B2 JP59246598A JP24659884A JPH06101350B2 JP H06101350 B2 JPH06101350 B2 JP H06101350B2 JP 59246598 A JP59246598 A JP 59246598A JP 24659884 A JP24659884 A JP 24659884A JP H06101350 B2 JPH06101350 B2 JP H06101350B2
- Authority
- JP
- Japan
- Prior art keywords
- nickel
- cadmium
- storage battery
- alkaline storage
- electrode plate
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/24—Alkaline accumulators
- H01M10/30—Nickel accumulators
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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ミウムアルカリ蓄電池に関するも
のである。TECHNICAL FIELD The present invention relates to a nickel-cadmium alkaline storage battery.
従来技術とその問題点 アルカリ蓄電池用ニッケル正極板は大きく分けて２種類
のものがある。Conventional technology and its problems There are roughly two types of nickel positive electrode plates for alkaline storage batteries.
その１つはシンター型と呼ばれているものであり、他の
１つはペースト型と呼ばれているものである。前者は２
〜３μの微細なニッケル粉末を穿孔鋼板あるいはニッケ
ルネットのごとき芯金に焼結させた十数ミクロンの微孔
からなる多孔性基板に硝酸ニッケル塩溶液を含浸した
後、アルカリ溶液中で水酸化物にし充填する。いわゆる
溶液含浸法で作成するものである。One is called a sinter type, and the other is called a paste type. The former is 2
After impregnating a nickel nitrate salt solution into a porous substrate consisting of micro holes of a few dozen microns obtained by sintering a core metal such as a perforated steel plate or a nickel net with a fine nickel powder of ~ 3μ, hydroxide in an alkaline solution And fill. It is prepared by a so-called solution impregnation method.
後者は、上記の工程を短縮するべく、水酸化ニッケル活
物質そのものを、水等によりペースト状となし直接充填
するものである。従つて基板は、水酸化ニッケル粒子が
充填できうるように数十〜数百ミクロンと大きな細孔よ
りなり、これらは金属繊維焼結体基板あるいはスポンジ
状ニッケルと称する三次元的に連続した空孔を有する多
孔性基板が用いられる。このペースト型極板において
は、基板の細孔が大きいために、シンター型極板の基板
よりも活物質に対する集電性が乏しいので、ペースト型
での活物質利用率は50〜60％である。これは、シンター
型極板における活物質利用率90％に比べて大巾に悪い欠
点である。In the latter, in order to shorten the above steps, the nickel hydroxide active material itself is directly filled in a paste form with water or the like. Therefore, the substrate is composed of large pores of several tens to several hundreds of microns so that it can be filled with nickel hydroxide particles. These are three-dimensionally continuous pores called a metal fiber sintered substrate or sponge-like nickel. A porous substrate having is used. In this paste type electrode plate, since the pores of the substrate are large, the current collecting property for the active material is poorer than that of the substrate of the sinter type electrode plate, so the active material utilization rate in the paste type is 50 to 60%. . This is a drawback that is significantly worse than the active material utilization rate of 90% in the sinter type electrode plate.
発明の目的 本発明はアルカリ蓄電池用正極板において活物質利用率
を向上させ、高性能で且つ生産性の高いニッケルカドミ
ウムアルカリ蓄電池を提供することを目的とする。OBJECT OF THE INVENTION It is an object of the present invention to provide a nickel-cadmium alkaline storage battery which has a high efficiency and high productivity in the positive electrode plate for an alkaline storage battery, in which the utilization rate of the active material is improved.
発明の構成 すなわち、本発明は上記目的を達成するために、β−Co
(OH)2を含む主成分が水酸化ニッケル等の混合粉末から
なる未化成の正極板とカドミウムと酸化カドミウムある
いは水酸化カドミウム等の混合粉末からなる負極板とに
より構成されるニッケルカドミウムアルカリ蓄電池にお
いて、電解液を注入して組立てた後、初充電開始まで20
時間以上放置するものである。That is, in order to achieve the above object, the present invention provides β-Co
In a nickel-cadmium alkaline storage battery composed of an unformed positive electrode plate whose main component containing (OH) 2 is a mixed powder of nickel hydroxide, etc. and a negative electrode plate made of a mixed powder of cadmium and cadmium oxide or cadmium hydroxide, etc. , After assembling by injecting the electrolyte solution, 20
It is left for more than an hour.
実施例 以下本発明の一実施例について詳述する。Example Hereinafter, one example of the present invention will be described in detail.
硝酸ニッケル水溶液をアルカリ溶液中に滴下し、水酸化
ニッケルを生成させ、水洗、乾燥した後活物質とした。
一方硝酸コバルト水溶液をアルカリ溶液中に滴下し、水
酸化コバルトを生成させ、水洗後約100℃で真空乾燥を
行ない淡桃色のβ−Co(OH)2粉末を得た。このようにし
て得た水酸化ニッケル粉末の90wt％とβ−Co(OH)2粉末1
0wt％を粉砕混合した。この粉砕混合物とカルボキシメ
チルセルローズを少量溶解した水を加えてペースト状に
した。繊維径が約25μのニッケル繊維をエアーレート法
で分布した後、還元性雰囲気下で焼結した厚み2mm、多
孔度95％の基板にこのペーストを充填した。乾燥、厚み
調節を行つて、厚み0.7mmの未化成正極板とした。この
正極板および、水酸化カドミウムと金属カドミウムから
なる負極板、ナイロンセパレータ、比重1.27の苛性カリ
ウム水溶液等よりAAサイズの円筒形ニッケルカドミウム
蓄電池を作成した。この電池を注液後一度も充電するこ
となく、20時間以上放置した後、初充電して本発明電池
を得た。本発明電池と一定時間放置した他の電池を比較
するべく、容量試験を行つた。放電容量は３ 繰返して試験した。An aqueous solution of nickel nitrate was dropped into an alkaline solution to generate nickel hydroxide, which was washed with water and dried to obtain an active material.
On the other hand, an aqueous cobalt nitrate solution was dropped into the alkaline solution to form cobalt hydroxide, which was washed with water and vacuum dried at about 100 ° C. to obtain pale pink β-Co (OH) 2 powder. 90 wt% of the nickel hydroxide powder thus obtained and β-Co (OH) 2 powder 1
0 wt% was ground and mixed. This crushed mixture and water in which a small amount of carboxymethyl cellulose was dissolved were added to form a paste. A nickel fiber having a fiber diameter of about 25μ was distributed by the air rate method, and then the paste was filled into a substrate having a thickness of 2 mm and a porosity of 95%, which was sintered in a reducing atmosphere. By drying and adjusting the thickness, an unformed positive electrode plate having a thickness of 0.7 mm was obtained. From this positive electrode plate, a negative electrode plate made of cadmium hydroxide and metal cadmium, a nylon separator, an aqueous caustic potassium solution having a specific gravity of 1.27, etc., a cylindrical nickel cadmium storage battery of AA size was prepared. This battery was left to stand for 20 hours or more without being charged even after the liquid was injected, and then initially charged to obtain a battery of the present invention. A capacity test was carried out to compare the battery of the present invention with another battery left for a certain period of time. Discharge capacity is 3 The test was repeated.
第１表に放置時間と放電容量の関係及び正極板組成との
関係についての結果を示した。Table 1 shows the results of the relationship between the standing time and the discharge capacity and the composition of the positive electrode plate.
上記の如く、発明による水酸化ニッケル及びβ−Co(OH)
2等の混合粉末からなる未化成正極板を用いて、電解液
注入後20時間以上放置した後初充電した電池は優れてい
ることが判る。 As mentioned above, nickel hydroxide and β-Co (OH) according to the invention
It can be seen that a battery that is initially charged after being left for 20 hours or more after injecting an electrolytic solution using an unformed positive electrode plate made of a mixed powder of 2, etc. is excellent.
β−Co(OH)2を混合した正極板を用いた電池が初充電ま
でに一定時間放置すると高性能化する。この原因は、混
合されたβ−Co(OH)2がアルカリ溶液中でHCoC2￣等錯イ
オンが供給され、放置中に活物質である水酸化ニッケル
粒子表面で何らかの反応を起こし、活物質の深放電を可
能とするためと考えられる。錯イオンの状態にならない
内で、充電されるとβ−Co(OH)2はCoOOHで不働態化する
ために溶解しないで、HCoC2￣が充分に供給されない。
それ故に初充電前に放置期間が必要である。A battery using a positive electrode plate mixed with β-Co (OH) 2 will have higher performance if left for a certain time before initial charging. The reason for this is that mixed β-Co (OH) 2 is supplied with complex ions such as HCoC 2 ￣ in an alkaline solution, and some reaction occurs on the surface of nickel hydroxide particles, which is the active material, while it is left to stand. It is considered that this enables deep discharge. Being charged with complex ions, β-Co (OH) 2 is not dissolved because it becomes passivated by CoOOH and HCoC 2 ￣ is not sufficiently supplied.
Therefore, a leaving period is required before the first charge.
又、β−Co(OH)2以外のCo2O3，Co3O4，CoHO2,CoOOH等ア
ルカリ溶液中で安定なコバルト化合物では、何ら性能に
変化がなかつた。Further, cobalt compounds other than β-Co (OH) 2 , such as Co 2 O 3 , Co 3 O 4 , CoHO 2 and CoOOH, which are stable in alkaline solutions, showed no change in performance.
発明の効果 上述した如く、本発明は水酸化ニッケル粉末及びβ−Co
(OH)2等の混合粉末からなる未化成の正極板とカドミウ
ムと酸化カドミウムあるいは水酸化カドミウム等の混合
粉末からなる負極板とにより構成されるニッケルカドミ
ウムアルカリ蓄電池において、電解液注入後20時間以上
放置し、初充電することにより、正極板の活物質利用率
が向上して、高性能で且つ生産性の高いニッケルカドミ
ウムアルカリ蓄電池が提供でき、その工業的価値は大な
るものである。EFFECTS OF THE INVENTION As described above, the present invention provides nickel hydroxide powder and β-Co.
(OH) 2 In nickel-cadmium alkaline storage battery composed of an unformed positive electrode plate made of a mixed powder and a negative electrode plate made of a mixed powder of cadmium and cadmium oxide or cadmium hydroxide, 20 hours or more after injection of an electrolytic solution By leaving it for the first time and charging it for the first time, the utilization rate of the active material of the positive electrode plate is improved, and a nickel cadmium alkaline storage battery having high performance and high productivity can be provided, and its industrial value is great.
Claims (1)
ルの混合粉末からなる未化成の正極板とカドミウムと酸
化カドミウムあるいは水酸化カドミウムの混合粉末から
なる負極板とによりなるニッケルカドミウムアルカリ蓄
電池において、電解液注入後20時間以上放置し、初充電
することを特徴とするニッケルカドミウムアルカリ蓄電
池。1. A nickel comprising an unformed positive electrode plate composed of a mixed powder of nickel hydroxide containing β-Co (OH) 2 as a main component and a negative electrode plate composed of a mixed powder of cadmium and cadmium oxide or cadmium hydroxide. A nickel-cadmium alkaline storage battery characterized by being left for 20 hours or more after injecting an electrolyte in a cadmium alkaline storage battery to be charged for the first time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59246598A JPH06101350B2 (en) | 1984-11-20 | 1984-11-20 | Nickel cadmium alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59246598A JPH06101350B2 (en) | 1984-11-20 | 1984-11-20 | Nickel cadmium alkaline storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61124068A JPS61124068A (en) | 1986-06-11 |
| JPH06101350B2 true JPH06101350B2 (en) | 1994-12-12 |
Family
ID=17150795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59246598A Expired - Lifetime JPH06101350B2 (en) | 1984-11-20 | 1984-11-20 | Nickel cadmium alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06101350B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE4239295C2 (en) * | 1992-11-23 | 1995-05-11 | Starck H C Gmbh Co Kg | Process for the production of pure nickel hydroxide and its use |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2340869C3 (en) * | 1973-08-13 | 1985-02-07 | Varta Batterie Ag, 3000 Hannover | Positive electrode containing nickel hydroxide as the active material for alkaline batteries |
| JPS58152372A (en) * | 1982-03-05 | 1983-09-09 | Japan Storage Battery Co Ltd | Manufacturing method for positive plate of alkaline battery |
| JPS5916268A (en) * | 1982-07-16 | 1984-01-27 | Matsushita Electric Ind Co Ltd | Manufacture of battery using nickel electrode |
-
1984
- 1984-11-20 JP JP59246598A patent/JPH06101350B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61124068A (en) | 1986-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61138458A (en) | Alkaline battery | |
| JPH06101350B2 (en) | Nickel cadmium alkaline storage battery | |
| JP2615538B2 (en) | Nickel positive electrode for alkaline storage batteries | |
| JPH0630248B2 (en) | Nickel electrode for alkaline batteries | |
| JPH0429189B2 (en) | ||
| JP2610565B2 (en) | Manufacturing method of sealed alkaline storage battery using paste-type nickel positive electrode | |
| JPS6264062A (en) | Positive plate for alkaline storage battery | |
| JPS6188453A (en) | Nickel positive electrode for alkaline storage battery | |
| JPH0430713B2 (en) | ||
| JP3708350B2 (en) | Sintered nickel positive electrode for alkaline storage battery | |
| JP3182228B2 (en) | Method for producing non-sintered positive electrode plate for alkaline storage battery | |
| JP2002203543A (en) | Cadmium negative electrode for alkaline battery and its manufacturing method | |
| JPH0582027B2 (en) | ||
| JPS645421B2 (en) | ||
| JP2530281B2 (en) | Alkaline storage battery | |
| JPH041992B2 (en) | ||
| JP3292204B2 (en) | Nickel sintered electrode for alkaline storage battery | |
| JPS61124060A (en) | Paste type positive pole plate for alkaline storage battery | |
| JPH0410176B2 (en) | ||
| JPH03745B2 (en) | ||
| JPH0564421B2 (en) | ||
| JP2589750B2 (en) | Nickel cadmium storage battery | |
| JP3540558B2 (en) | Method for producing nickel hydroxide electrode for alkaline storage battery and nickel hydroxide electrode obtained by this method | |
| JPH0451944B2 (en) | ||
| JP2005183339A (en) | Nickel electrode for alkaline storage battery and alkaline storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |