JPS61240580A - Manufacture of cadmium negative plate for alkaline storage battery - Google Patents
Manufacture of cadmium negative plate for alkaline storage batteryInfo
- Publication number
- JPS61240580A JPS61240580A JP60083562A JP8356285A JPS61240580A JP S61240580 A JPS61240580 A JP S61240580A JP 60083562 A JP60083562 A JP 60083562A JP 8356285 A JP8356285 A JP 8356285A JP S61240580 A JPS61240580 A JP S61240580A
- Authority
- JP
- Japan
- Prior art keywords
- electrode plate
- cadmium
- negative electrode
- paste
- 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.)
- Granted
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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
-
- 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
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分界
本発明はアルカリ蓄電池用ペースト式カドミウム負極板
の製造法に関づるちのである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of manufacturing a pasted cadmium negative electrode plate for alkaline storage batteries.
従来の技術・発明が解決しＪ：うとり−る問題点ペース
ト式カドミウム負極板を製造するに際し原料活物質粉末
としては、金属カドミウム、水酸化カドミウム及び酸化
カドミウムが考えられるが、金属カドミウムは価格が高
く且つ粒子が大ぎく活性が低いため、活物質の主原料と
して使用することは困難である。また水酸化カドミウム
は酸化カドミウム、金属力＋５ミウムに比して密度が小
さく、極板体積当りのエネルギー密度が低くなるという
不都合がある。原料コスト、エネルギー密度及び極板性
能から、活物質原料としては酸化カドミウムを用いるの
が望ましいと考えられる。Problems solved by conventional techniques and inventions When manufacturing a paste-type cadmium negative electrode plate, metal cadmium, cadmium hydroxide, and cadmium oxide can be considered as raw material active material powder, but metal cadmium is expensive. It is difficult to use it as a main raw material for active materials because the activity is high and the particles are large and have low activity. Moreover, cadmium hydroxide has a lower density than cadmium oxide or metal +5 mium, and has the disadvantage that the energy density per electrode plate volume is low. From the viewpoint of raw material cost, energy density, and electrode plate performance, it is considered desirable to use cadmium oxide as the active material raw material.
一方、溶媒どしては有機溶剤及び水が考えられるが、原
料コストの安い水を使った場合、酸化カドミウムは短時
間のうちに水と反応して水酸化ｊｙドミウムに変化し、
極板体積当りのエネルギー密度が低下げるｌどけでなく
、活物質ペーストが硬化して作業性が：ζしく低下づ゛
るため、従来はやむを１ｇず溶媒として有機溶剤を用い
ていた。右１幾溶剤を用いた場合は酸化カドミウムと反
応して、水酸化カドミウムを生成することがないため、
作業性がよく、極板体積当りのエネルギー密度及び活物
？１利用率の高いペースト式カドミウム負極板が得られ
る反面、その原料コス］へが水に比して高く、取扱いに
おいては公害、火災９作業環境の面から種々の対策を必
要とし、（のため製造工程が複雑になり、溶媒に水を用
いた場合に比べ製造コス１へがかなり高くなる。On the other hand, organic solvents and water can be considered as solvents, but if water is used since the raw material cost is low, cadmium oxide will react with water in a short time and change to jydmium hydroxide.
In the past, an organic solvent was unavoidably used as the solvent because the active material paste hardens and the workability deteriorates dramatically, as well as the energy density per plate volume decreases. Right 1: If a solvent is used, it will not react with cadmium oxide and produce cadmium hydroxide, so
Good workability, energy density per electrode plate volume, and active material? 1. Although a paste-type cadmium negative electrode plate with high utilization rate can be obtained, its raw material cost is higher than that of water, and handling requires various measures from the viewpoint of pollution and fire 9. The manufacturing process is complicated, and the manufacturing cost is considerably higher than when water is used as a solvent.
これらのことからペースト式カドミウム負極板としては
、極板体積当りのエネルギー密度及び活物質利用率の高
いの極板が１ワられるコス１〜の安い製造法が望まれて
いた。For these reasons, a method of manufacturing a paste-type cadmium negative electrode plate at a low cost of 1 or more has been desired, which can produce an electrode plate with a high energy density per plate volume and a high active material utilization rate.
本発明は以上のような従来技術の問題点を解決づ゛るこ
とを目的とするものである。The present invention aims to solve the problems of the prior art as described above.
問題点を解決するための手段
即ち、本発明はアルカリ蓄電池用ペースト式カドミウム
負極板の製造において、酸化カドミウムを含む活物質粉
末を結着剤及び水を主体とする溶媒とともに混練してペ
ーストとするに際し、糖質及びその塩のうちの少くとも
１つを添加することにより、上述した如き目的を達成
するものである。Means for Solving the Problems, That is, the present invention involves kneading active material powder containing cadmium oxide with a binder and a solvent mainly composed of water to form a paste in the production of paste-type cadmium negative electrode plates for alkaline storage batteries. By adding at least one of carbohydrates and their salts, the above-mentioned purpose is achieved.
作 用
酸化カドミウムを含む活物質粉末を結着剤及び水を主体
とする溶媒とともに混練してペーストとするに際し、糖
質及びその塩のうちの少くども１つを添加することによ
って、酸化カドミウムが水と反応して水酸化カドミウム
に変化Ｊ゛ることが抑制される。その理由は定かでない
が、酸化カドミウム粒子の表面で水に不溶性の化合物が
形成されることが考えられる。従って」−記の効果を用
いれば原料及び製造のコストが安い水を溶媒として使用
した場合でも、その作業性や極板のエネルギー密度及び
活物質利用率は溶媒に有顕溶剤を用いた場合と同笠の性
能が得られる。Function: When kneading active material powder containing cadmium oxide with a binder and a solvent mainly composed of water to form a paste, adding at least one of carbohydrates and their salts allows cadmium oxide to It is suppressed from reacting with water and changing into cadmium hydroxide. Although the reason for this is not clear, it is thought that a water-insoluble compound is formed on the surface of the cadmium oxide particles. Therefore, even if water, which is low in raw material and manufacturing costs, is used as a solvent, the workability, energy density of the electrode plate, and active material utilization rate will be lower than when a manifest solvent is used as the solvent. You can get the same performance as the same Kasa.
実施例 以下、本発明の実施例について詳述する。Example Examples of the present invention will be described in detail below.
１、酸化カドミウム １００部、ニッケル粉末１０部、
ポリテトラフルオロエチレンのアイスバージョン４部、
単糖類のＤ−アラビノースＣＪ−Ｌ０，０．４部と水６
０部を混練してペーストとし、これを厚み０．１ｍｍの
ニッケルメッキした鉄板からなる金属多孔板に所定の厚
さ塗布した後、９０℃にて乾燥し、最終的に加圧工程で
厚さ調節覆るという本発明による製造法で負極板を作製
し、これを試料Ａとした。1. Cadmium oxide 100 parts, nickel powder 10 parts,
4 parts iced version of polytetrafluoroethylene,
Monosaccharide D-arabinose CJ-L0, 0.4 parts and water 6
0 part was kneaded to make a paste, and this was applied to a predetermined thickness on a perforated metal plate made of nickel-plated iron plate with a thickness of 0.1 mm, dried at 90°C, and finally thickened by a pressurizing process. A negative electrode plate was produced using the manufacturing method according to the present invention of adjusting and covering, and this was designated as Sample A.
２、前記実施例１におけるＤ−アラビノースの代わりに
単糖類に属するＤ−グルクロン酸Ｃ，ＨゆＯ９のツート
リウム塩を用い、実施例１と同様の方法で本発明製造法
による負極板を作製し、これを試料Ｂとした。2. A negative electrode plate according to the production method of the present invention was produced in the same manner as in Example 1, using a tutolium salt of D-glucuronic acid C, H2O9, which belongs to monosaccharides, in place of D-arabinose in Example 1. This was designated as sample B.
３、前記実施例１におけるＤ−アラビノースの代わりに
オリゴ糖類の２糖に属するアガロビオースＣ１□１−シ
○ゆを用い、実施例１ど同様の方法で本発明製造法によ
る負極板を作製し、これを試料Ｃとした。3. Producing a negative electrode plate according to the production method of the present invention in the same manner as in Example 1, using agarobiose C1□1-shioyu, which belongs to the disaccharide of oligosaccharides, instead of D-arabinose in Example 1, This was designated as sample C.
４、前記実施例１におけるＤ−アラビノースの代わりに
多糖類に属するアガロースを用い、実施例と同様の方法
で本発明製造法による負極板を作製し、これを試料りと
した。4. A negative electrode plate according to the manufacturing method of the present invention was prepared in the same manner as in Example 1 using agarose belonging to polysaccharides instead of D-arabinose in Example 1, and this was used as a sample.
５、また比較のために、前記実施例１からＤ−アラビノ
ースを除いた配合で、実施例１と同様の方法で従来の′
＃Ａ造法による負極板を作製し、これを試料Ｅとした。5. Also, for comparison, the conventional '
A negative electrode plate was produced using the #A manufacturing method, and this was designated as sample E.
以上のようにして得た試料Ａ〜Ｅを４０ｘ ４０ｍｍの
寸法に切断したのち、比重１．２５０ （２０°Ｃ）の
ＫＯ日水溶液中で試ｒ１と同寸法の焼結式ニッケル正極
板２枚を対極として用い、試料の理論容量に対し０．２
０（Ａ）の通電電流で充放電した場合の放電時活物質利
用率を第１図に、放電電気坐を第２図に示す。After cutting the samples A to E obtained as above into a size of 40 x 40 mm, two sintered nickel positive electrode plates of the same size as sample r1 were placed in a KO solution with a specific gravity of 1.250 (20°C). is used as the counter electrode, and the theoretical capacity of the sample is 0.2
FIG. 1 shows the active material utilization rate during discharge when charging and discharging with a current of 0 (A), and FIG. 2 shows the discharge electric current.
これらの図から明らかなように、糖質あるいは・での塩
を添加し、酸化カドミウムが水酸化カドミウムに変化す
るのを抑制した試料Ａ−Ｄはぞうでむい試わＩＥＪ、り
も極板性能がかなり改善されている。また活物質ベース
１−が硬化するまでの可使口Ｎ間は糖質あるいはその塩
を添加した実施例１〜４の場合、約１５〜４０［１１間
であるのに対し、添加しない場合は約２０分はどであっ
た。これらのことから糖質及び−での塩の添加効果は明
らかである。As is clear from these figures, samples A to D, in which carbohydrates or salts were added to suppress the conversion of cadmium oxide to cadmium hydroxide, were tested on elephants. has been significantly improved. In addition, the usable gap N until the active material base 1- is hardened is approximately 15 to 40 [11] in the cases of Examples 1 to 4 in which carbohydrates or their salts are added, whereas in the case where the active material base 1- is not added, It took about 20 minutes. From these results, the effect of adding salt on carbohydrates and - is clear.
発明の効果
以上のように本発明に基づざ、酸化カドミウムを○む活
物質粉末を結着剤及び水を主体とする溶媒とともに混練
してペーストとするに際し、糖質及びモの塩のうちの少
くとも１つを添加するこμによって、酸化カドミウムが
水と反見；シて水酸化カドミウムへ変化するのを抑制し
て作業性の低下を防ぐと共に、エネルギー密度及び活物
質ペースの高いベース１−・式カドミウム負極板を１″
することが出来る。Effects of the Invention As described above, based on the present invention, when kneading an active material powder containing cadmium oxide with a binder and a solvent mainly composed of water to form a paste, it is possible to By adding at least one of the following, cadmium oxide is inhibited from changing into cadmium hydroxide due to the reaction with water, thereby preventing a decrease in workability, and also forming a base with high energy density and active material pace. 1--type cadmium negative electrode plate 1″
You can.
第１図および第２図は本発明製造法および従来の製造法
によって１′）られたベース１一式カドミウムｆ″Ｊ極
板の充放電リイクルに伴なう放電時活物質利用率および
放電電気量を比較して示す特性図である。
ｒｚン ＊ｒＭ＠ｈｍ＄
（−グ′ＩＰ）壱Ｙ η蔀孕Figures 1 and 2 show the utilization rate of active material during discharge and the amount of discharged electricity associated with the charging and discharging recycle of the base 1 set of cadmium f''J electrode plates manufactured by the manufacturing method of the present invention and the conventional manufacturing method. It is a characteristic diagram showing a comparison of.
Claims (5)
を主体とする溶媒とともに混練してペースト状となし、
該ペーストを芯体に塗布、乾燥してカドミウム負極板と
するものにおいて、前記ペースト中に糖質およびその塩
のうちの少なくとも１つを添加することを特徴とするア
ルカリ蓄電池用カドミウム負極板の製造法。(1) Knead active material powder containing cadmium oxide with a binder and a solvent mainly composed of water to form a paste;
Production of a cadmium negative electrode plate for an alkaline storage battery, wherein the paste is applied to a core and dried to produce a cadmium negative electrode plate, characterized in that at least one of a carbohydrate and a salt thereof is added to the paste. Law.
重量比で０．０５〜５％である特許請求の範囲第（１）
項記載のアルカリ蓄電池用カドミウム負極板の製造法。(2) Claim No. 1, wherein the amount of carbohydrates and their salts added is 0.05 to 5% by weight relative to cadmium oxide.
A method for producing a cadmium negative electrode plate for an alkaline storage battery as described in .
載のアルカリ蓄電池用カドミウム負極板の製造法。(3) The method for producing a cadmium negative electrode plate for an alkaline storage battery according to claim (1), wherein the carbohydrate is a monosaccharide.
項記載のアルカリ蓄電池用カドミウム負極板の製造法。(4) Claim No. (1) in which the carbohydrate is an oligosaccharide
A method for producing a cadmium negative electrode plate for an alkaline storage battery as described in .
載のアルカリ蓄電池用カドミウム負極板の製造法。(5) The method for producing a cadmium negative electrode plate for an alkaline storage battery according to claim (1), wherein the carbohydrate is a polysaccharide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60083562A JPH0619987B2 (en) | 1985-04-17 | 1985-04-17 | Manufacturing method of cadmium negative electrode plate for alkaline storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60083562A JPH0619987B2 (en) | 1985-04-17 | 1985-04-17 | Manufacturing method of cadmium negative electrode plate for alkaline storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61240580A true JPS61240580A (en) | 1986-10-25 |
| JPH0619987B2 JPH0619987B2 (en) | 1994-03-16 |
Family
ID=13805954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60083562A Expired - Lifetime JPH0619987B2 (en) | 1985-04-17 | 1985-04-17 | Manufacturing method of cadmium negative electrode plate for alkaline storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619987B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6224560A (en) * | 1985-07-23 | 1987-02-02 | Yuasa Battery Co Ltd | Cadmium negative plate |
| JP2002299178A (en) * | 2001-03-30 | 2002-10-11 | Nichicon Corp | Electrolyte for driving electrolytic capacitor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053842A (en) * | 1973-09-13 | 1975-05-13 | ||
| JPS5723465A (en) * | 1980-07-16 | 1982-02-06 | Matsushita Electric Ind Co Ltd | Manufacture of cadmium negative electrode for alkaline cell |
-
1985
- 1985-04-17 JP JP60083562A patent/JPH0619987B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053842A (en) * | 1973-09-13 | 1975-05-13 | ||
| JPS5723465A (en) * | 1980-07-16 | 1982-02-06 | Matsushita Electric Ind Co Ltd | Manufacture of cadmium negative electrode for alkaline cell |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6224560A (en) * | 1985-07-23 | 1987-02-02 | Yuasa Battery Co Ltd | Cadmium negative plate |
| JP2002299178A (en) * | 2001-03-30 | 2002-10-11 | Nichicon Corp | Electrolyte for driving electrolytic capacitor |
| JP4570804B2 (en) * | 2001-03-30 | 2010-10-27 | ニチコン株式会社 | Electrolytic capacitor drive electrolyte |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619987B2 (en) | 1994-03-16 |
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Legal Events
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|---|---|---|---|
| EXPY | Cancellation because of completion of term |