JPS63146352A - Paste type cadmium negative electrode - Google Patents
Paste type cadmium negative electrodeInfo
- Publication number
- JPS63146352A JPS63146352A JP61291825A JP29182586A JPS63146352A JP S63146352 A JPS63146352 A JP S63146352A JP 61291825 A JP61291825 A JP 61291825A JP 29182586 A JP29182586 A JP 29182586A JP S63146352 A JPS63146352 A JP S63146352A
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- layer
- active material
- cadmium negative
- paste
- 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 19
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 title claims description 19
- 239000011149 active material Substances 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000007767 bonding agent Substances 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 21
- 230000007423 decrease Effects 0.000 description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000006258 conductive agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910021383 artificial graphite Inorganic materials 0.000 description 2
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 2
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 210000001787 dendrite Anatomy 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- -1 hydroxide ions Chemical class 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- PLLZRTNVEXYBNA-UHFFFAOYSA-L cadmium hydroxide Chemical compound [OH-].[OH-].[Cd+2] PLLZRTNVEXYBNA-UHFFFAOYSA-L 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000003232 water-soluble binding agent Substances 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
- H01M4/246—Cadmium electrodes
-
- 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)
- 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、アルカリ蓄電池に用いられるペースト式カド
ミウム負極に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a paste-type cadmium negative electrode used in alkaline storage batteries.
従来の技術
近年、ペースト式カドミウム負極は、製造工程が簡単で
あり、製造コストが安く、高いエネルギー密度が得られ
るなどの理由から、アルカリ蓄電池に多く用いられるよ
うになってきておシ、酸素ガス吸収性を高めるために、
電極表面に炭素粉末層を形成することも提案されている
（特開昭６０−６３８７５号公報）。Conventional technology In recent years, paste-type cadmium negative electrodes have been increasingly used in alkaline storage batteries because of their simple manufacturing process, low manufacturing costs, and high energy density. To increase absorbency,
It has also been proposed to form a carbon powder layer on the electrode surface (Japanese Unexamined Patent Publication No. 60-63875).
このようなペースト式カドミウム負極は、焼結式カドミ
ウム負極と異なシ、活物質を保持する導電性骨格がない
ため、充放電サイクルの繰り返しにより、カドミウムの
溶解析出が繰り返され、負極の変形が起こシ、短寿命に
なりやすいという欠点を有していた。This type of paste-type cadmium negative electrode differs from a sintered-type cadmium negative electrode in that it does not have a conductive skeleton that holds the active material, so repeated charge/discharge cycles cause repeated dissolution and precipitation of cadmium, causing deformation of the negative electrode. However, it has the disadvantage that it tends to have a short lifespan.
このような問題を解決するために、特開昭６１−５８６
６６号公報に見られるように、表面に高分子被膜を形成
することが提案されているが、このような負極では、負
極の変形は防止できるが、極板の導電性が下り、充電効
率が悪くなるという欠点を有していた。In order to solve such problems, Japanese Patent Application Laid-Open No. 61-586
As seen in Publication No. 66, it has been proposed to form a polymer film on the surface of the negative electrode, but although deformation of the negative electrode can be prevented, the conductivity of the electrode plate decreases and the charging efficiency decreases. It had the disadvantage of becoming worse.
また、特開昭６１−１２４０５３号公報に見られるよう
Ｋ、表面にカーボン粉末とポリビニルアルコールとを含
む導電剤を塗着することも提案されているが、実施の方
法により負極の変形は防止できるが、放電特性が劣化す
るという欠点を有していた。Furthermore, as seen in JP-A-61-124053, it has been proposed to apply a conductive agent containing carbon powder and polyvinyl alcohol to the surface of K, but deformation of the negative electrode can be prevented depending on the implementation method. However, it had the disadvantage that the discharge characteristics deteriorated.
発明が解決しようとする問題点
本発明は、以上のような従来の欠点を解消し、比較的廉
価で、より長寿命を有するペースト式カドミウム負極を
得ることを目的とする。Problems to be Solved by the Invention It is an object of the present invention to solve the above-mentioned conventional drawbacks and to obtain a paste-type cadmium negative electrode that is relatively inexpensive and has a longer life.
問題点を解決するための手段
本発明のペースト式カドミウム負極は、電極の表面に活
物質と導電材と結着剤の混合物から成る層を形成したこ
とを特徴とするものである。Means for Solving the Problems The paste-type cadmium negative electrode of the present invention is characterized in that a layer consisting of a mixture of an active material, a conductive material, and a binder is formed on the surface of the electrode.
作 用
このようなペースト式カドミウム負極は、電極表面に活
物質と導電材と結着剤の混合物である層を形成させであ
るため、放電生成物の溶解、拡散を防止することが可能
となり９電池の充放電サイクル寿命が向上する。Function: This type of paste-type cadmium negative electrode forms a layer on the electrode surface that is a mixture of active material, conductive material, and binder, making it possible to prevent dissolution and diffusion of discharge products9. The charge/discharge cycle life of the battery is improved.
実施例 以下、実施例により本発明を詳述する。Example Hereinafter, the present invention will be explained in detail with reference to Examples.
平均粒径約１μの酸化カドミウム粉末に、ポリビニルア
ルコールのエチレングリコール溶液ｌ。A solution of polyvinyl alcohol in ethylene glycol is added to cadmium oxide powder with an average particle size of about 1μ.
え、混練してペースト状にする。このペーストを導電性
支持体である厚さ０．１ｍの＝７ケルメツキした開孔鋼
板に塗着し、約１４０℃で３０分間乾燥し、厚さ約０．
５ｍの電極を得た。Well, knead it into a paste. This paste was applied to a conductive support, a 0.1 m thick perforated steel plate with =7 holes, and dried at about 140°C for 30 minutes to a thickness of about 0.1 m.
A 5 m electrode was obtained.
次に、純水に人造黒鉛粉末を重量比で３０チ。Next, add 30 grams of artificial graphite powder to pure water by weight.
前記酸化カドミウム粉末およびポリビニルアルコールを
重量比で各６チ分散させた溶液に、この電極を約１０秒
間浸漬した後、８０’Ｃで乾燥させ、電極表面に層を形
成させた。次にこの電極をアルカリ溶液中で理論容量の
約４０％充電し、水洗。The electrode was immersed for about 10 seconds in a solution in which six parts of the cadmium oxide powder and polyvinyl alcohol were dispersed by weight, and then dried at 80'C to form a layer on the electrode surface. Next, this electrode was charged to about 40% of its theoretical capacity in an alkaline solution and washed with water.
乾燥後ペースト式カドミウム負極を得た。この負極をａ
とする。After drying, a paste type cadmium negative electrode was obtained. This negative electrode is a
shall be.
一方、上記の方法により表面に層を形成させない他は同
様の構成による比較例のカドミウム負極を用意した。こ
れをｂとする。On the other hand, a cadmium negative electrode of a comparative example having the same structure except that no layer was formed on the surface by the above method was prepared. Let this be b.
さらに、前記の人造黒鉛粉末を重量比で３０チ。Furthermore, the weight ratio of the artificial graphite powder was 30 inches.
ポリビニルアルコールを重量比で５チとした溶液を用い
、同様に表面に層を形成させた比較例のカドミウム負極
Ｃを得た。Using a solution containing polyvinyl alcohol at a weight ratio of 5 parts, a cadmium negative electrode C of a comparative example was obtained in which a layer was similarly formed on the surface.
さらに、ポリビニルアルコールを重量比で６チとした溶
液を用い、同様に表面に層を形成させた比較例のカドミ
ウム負極ｄを得た。Furthermore, a cadmium negative electrode d of a comparative example was obtained in which a layer was similarly formed on the surface using a solution containing polyvinyl alcohol at a weight ratio of 6 parts.
上記、４種類のカドミウム負極を、焼結式ニッケル正極
と組み合せて、密閉形蓄電池を試作し、サイクル寿命試
験と、放電率特性試験および充電効率試験を行なった。A sealed storage battery was prototyped by combining the above four types of cadmium negative electrodes with a sintered nickel positive electrode, and a cycle life test, a discharge rate characteristic test, and a charging efficiency test were conducted.
サイクル寿命特性は、６０°Ｃで％Ｃ相当の電流で４．
６時間充電し、１Ｃ相当の抵抗負荷で完全放電をする充
放電を繰り返し、サイクルによる容量低下で評価した。The cycle life characteristics are 4.0 at a current equivalent to %C at 60°C.
The battery was charged for 6 hours and then completely discharged under a resistive load equivalent to 1 C. The battery was repeatedly charged and discharged, and the capacity reduction due to the cycles was evaluated.
放電率特性は、電池を２０°Ｃで０．１Ｃ相当の電流で
１６時間充電し、１〜６Ｃ相当の電流で放電したときの
放電容量と、０．２Ｃ相当の電流で放電したときの放電
容量との比率で評価した。また、充電効率特性は、２０
°Ｃで０，２Ｃ〜３Ｃ相当の電流で充電したときの充電
容量の計算値と、０．２０相当の電流で放電したときの
放電容量との比率で評価した。The discharge rate characteristics are the discharge capacity when the battery is charged at 20°C with a current equivalent to 0.1C for 16 hours and discharged with a current equivalent to 1 to 6C, and the discharge capacity when discharged with a current equivalent to 0.2C. Evaluation was made based on the ratio to capacity. In addition, the charging efficiency characteristic is 20
Evaluation was made based on the ratio of the calculated charge capacity when charged at a current equivalent to 0.2 to 3 C at °C and the discharge capacity when discharged at a current equivalent to 0.20 °C.
第１図は、１サイクル目の容量を１００とした場合の容
量維持率と、充放電サイクル数との関係を示す。ａは本
発明の負極を用いた電池、ｂ、ｃおよびｄは比較のため
の負極を用いた電池を示す。FIG. 1 shows the relationship between the capacity retention rate and the number of charge/discharge cycles, assuming that the capacity at the first cycle is 100. A shows a battery using the negative electrode of the present invention, and b, c, and d show batteries using negative electrodes for comparison.
この結果から明らかなように、電極表面に高分子を含む
層が形成された負極ａ、ａおよびｄを用いた電池ａ、ａ
およびｄは、電極表面に特に層を形成されていない負極
すを用いた電池に比べて大幅にサイクル寿命が向上して
いる。As is clear from this result, batteries a, a and a using negative electrodes a, a, and d in which a layer containing a polymer was formed on the electrode surface.
and d have a significantly improved cycle life compared to a battery using a negative electrode layer with no particular layer formed on the electrode surface.
各々の電池について、６００サイクル経過後内部インピ
ーダンスを測定したところ、比較例の負極すを用いた電
池については著しく低下していたが、他はサイクル開始
前とほとんど差はなかった。When the internal impedance of each battery was measured after 600 cycles, it was found that the battery using the negative electrode of the comparative example had significantly decreased, but other values were almost the same as before the start of the cycle.
このことから、負極すでは充放電を繰り返すうちに、デ
ンドライトの成長等が起こシ、電池内部で短絡が起こっ
たと推定されるが、電池ａ、Ｃおよびｄではそのような
短絡は起こらなかったと考えられる。この理由には、負
極表面の層に含まれるポリビニルアルコールが、強固な
層を作り、極板の変形を防止していることがあげられる
。また、負極内部への水酸イオンの拡散がこれらの層に
よシ阻害されるため、比較的低アルカリ側で生成され易
く、大きな結晶化をおこしにくいｒ形の水酸化カドミウ
ムが生成されるため、デンドライト等の成長が妨げられ
ることも考えられる。From this, it is presumed that during repeated charging and discharging of the negative electrode, dendrite growth occurred and a short circuit occurred inside the battery, but it is thought that no such short circuit occurred in batteries a, C, and d. It will be done. The reason for this is that the polyvinyl alcohol contained in the layer on the surface of the negative electrode forms a strong layer that prevents the electrode plate from deforming. In addition, since the diffusion of hydroxide ions into the inside of the negative electrode is inhibited by these layers, r-type cadmium hydroxide is generated, which is more likely to be generated on the relatively low alkaline side and is difficult to cause large crystallization. It is also conceivable that the growth of dendrites, etc., may be hindered.
第２図は、放電容量比率と放電レートとの関係を示す図
である。図から明らかなように、ａとｂではほとんど差
がないが、ｃ、ｄは著しく低下している。これは、電極
表面に高分子による層が形成されているため、活物質に
対する水酸イオンの供給が妨げられ、放電特性が低下し
たと考えられる。しかし、本発明の負極では、電極表面
層にも活物質が含まれているため、そのような低下は起
こらない。FIG. 2 is a diagram showing the relationship between discharge capacity ratio and discharge rate. As is clear from the figure, there is almost no difference between a and b, but there is a significant decrease in c and d. This is thought to be because a polymer layer was formed on the electrode surface, which prevented the supply of hydroxide ions to the active material, resulting in a decrease in discharge characteristics. However, in the negative electrode of the present invention, such a decrease does not occur because the electrode surface layer also contains the active material.
第３図は、充電効率と充電レートとの関係を示す図であ
る。図からａ ＞ ｃ ＞ ｂ ＞ ｄの順で低下して
いる。これは、負極の導電性と、充放電反応に関与でき
る活物質の量に関係すると考えられる。FIG. 3 is a diagram showing the relationship between charging efficiency and charging rate. From the figure, it decreases in the order of a > c > b > d. This is thought to be related to the conductivity of the negative electrode and the amount of active material that can participate in the charge/discharge reaction.
比較例の電池すに対し、表面に導電性の層を有する負極
ａ、Ｃを用いた電池ａ、Ｃは高い充電効率を示し、逆に
表面に導電性を低下させるような層を有する負極ｄを用
いた電池ｄは低い充電効率を示す。また、電池ａは、負
極表面の層に活物質が含まれているため、効率よく充放
電され、電池Ｃよシ高い充電効率を示すと考えられる。Compared to the batteries of comparative examples, batteries a and C using negative electrodes a and C that have conductive layers on their surfaces show high charging efficiency, whereas negative electrodes d that have layers on their surfaces that reduce conductivity Battery d using the battery d shows low charging efficiency. Furthermore, since battery a contains an active material in the layer on the surface of the negative electrode, it is considered that battery a can be charged and discharged efficiently and exhibits higher charging efficiency than battery C.
なお、実施例では、活物質と導電剤の配合量を重量比で
１対６としたが、この割合を変えることも可能である。In the examples, the active material and the conductive agent were mixed in a weight ratio of 1:6, but it is also possible to change this ratio.
しかし、活物質の割合が層形成材料全体の重量比で７割
を越えると、層を形成させた時のシート抵抗が飛躍的に
増大し、充電効率の低下が予想されるので好ましくない
。また、導電剤の割合が重量比で９割を越えると、充放
電反応に関与できる表面の活物質が少なくなるため、放
電特性が２０チ以上劣化するのでやはシ好ましくない。However, if the proportion of the active material exceeds 70% by weight of the entire layer-forming material, the sheet resistance when the layer is formed will increase dramatically, and charging efficiency is expected to decrease, which is not preferable. Furthermore, if the proportion of the conductive agent exceeds 90% by weight, the amount of active material on the surface that can participate in the charge/discharge reaction decreases, so that the discharge characteristics deteriorate by 20 degrees or more, which is not preferable.
層の厚みについては、技術的に８μ以下にするのは困難
であり、また６０μ以上の厚い層になると実際の充放電
が不可能となるので、層の厚みとしては８μ〜６０μが
適当であるといえる。Regarding the thickness of the layer, it is technically difficult to reduce it to 8μ or less, and if the layer is thicker than 60μ, actual charging and discharging becomes impossible, so the appropriate layer thickness is 8μ to 60μ. It can be said.
また、実施例では結着剤としてポリビニルアルコールを
用いたが、メチルセルロースなどのような他の水溶性結
着剤、あるいはフッ素樹脂などのような非水溶性の結着
剤を用いても同様の効果が得られる。In addition, although polyvinyl alcohol was used as the binder in the examples, similar effects can be obtained by using other water-soluble binders such as methylcellulose or water-insoluble binders such as fluororesin. is obtained.
発明の効果
以上のように、本発明によれば充放電特性、充電効率特
性を低下させることなく、アルカリ蓄電池の充放電サイ
クル寿命を向上させる効果が得られる。Effects of the Invention As described above, according to the present invention, the effect of improving the charge-discharge cycle life of an alkaline storage battery can be obtained without deteriorating the charge-discharge characteristics and charge efficiency characteristics.
第１図はニッケルーカドミウム蓄電池の容量維持率と充
放電サイクル数との関係を示す図、第２図は放電容量比
率と放電レートとの関係を示す図、第３図は充電効率と
充電レートとの関係を示す図である。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名α−
オ鋼明α負靭衝用竜氾
Ｌ−ゲｄヂ
第２図
力（彎ｔレート（Ｃ，へ）Figure 1 is a diagram showing the relationship between the capacity retention rate and the number of charge/discharge cycles of a nickel-cadmium storage battery, Figure 2 is a diagram showing the relationship between discharge capacity ratio and discharge rate, and Figure 3 is a diagram showing the relationship between charging efficiency and charging rate. FIG. Name of agent: Patent attorney Toshio Nakao and one other person α-
O Komei α negative toughness impact dragon flood L-ge dji second figure force (converted t rate (C, to)
Claims (4)
、電極表面に形成したことを特徴とするペースト式カド
ミウム負極。(1) A paste-type cadmium negative electrode characterized in that a layer made of a mixture of an active material, a conductive material, and a binder is formed on the electrode surface.
対９である特許請求の範囲第１項記載のペースト式カド
ミウム負極。(2) The active material and conductive material are mixed in a weight ratio of 7:3 to 1
9. The paste-type cadmium negative electrode according to claim 1, which is a cadmium negative electrode.
請求の範囲第１項又は第２項記載のペースト式カドミウ
ム負極。(3) A paste-type cadmium negative electrode according to claim 1 or 2, wherein the conductive material is carbon powder or a compound thereof.
１項から第３項のいずれかに記載のペースト式カドミウ
ム負極。(4) The paste-type cadmium negative electrode according to any one of claims 1 to 3, wherein the layer has a thickness of 8 to 50 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61291825A JPS63146352A (en) | 1986-12-08 | 1986-12-08 | Paste type cadmium negative electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61291825A JPS63146352A (en) | 1986-12-08 | 1986-12-08 | Paste type cadmium negative electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63146352A true JPS63146352A (en) | 1988-06-18 |
Family
ID=17773901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61291825A Pending JPS63146352A (en) | 1986-12-08 | 1986-12-08 | Paste type cadmium negative electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63146352A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01189863A (en) * | 1988-01-26 | 1989-07-31 | Shin Kobe Electric Mach Co Ltd | Manufacture of cadmium negative electrode plate for alkaline storage battery |
| JPH03159065A (en) * | 1989-11-17 | 1991-07-09 | Matsushita Electric Ind Co Ltd | Nickel-cadmium storage battery |
-
1986
- 1986-12-08 JP JP61291825A patent/JPS63146352A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01189863A (en) * | 1988-01-26 | 1989-07-31 | Shin Kobe Electric Mach Co Ltd | Manufacture of cadmium negative electrode plate for alkaline storage battery |
| JPH03159065A (en) * | 1989-11-17 | 1991-07-09 | Matsushita Electric Ind Co Ltd | Nickel-cadmium storage battery |
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