JP2733230B2 - Sealed nickel-hydrogen storage battery using hydrogen storage alloy - Google Patents
Sealed nickel-hydrogen storage battery using hydrogen storage alloyInfo
- Publication number
- JP2733230B2 JP2733230B2 JP62290019A JP29001987A JP2733230B2 JP 2733230 B2 JP2733230 B2 JP 2733230B2 JP 62290019 A JP62290019 A JP 62290019A JP 29001987 A JP29001987 A JP 29001987A JP 2733230 B2 JP2733230 B2 JP 2733230B2
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen storage
- nickel
- battery
- negative electrode
- alloy
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/383—Hydrogen absorbing alloys
-
- 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
- H01M10/34—Gastight accumulators
- H01M10/345—Gastight metal hydride accumulators
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
-
- 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)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、負極に水素吸蔵合金を用いたニッケル・水
素蓄電池の構成の改良に関する。
従来の技術
高密度に水素を吸蔵・放出する水素吸蔵合金を負極材
料に用いるニッケル・水素蓄電池は密閉化が可能で、円
筒密閉形ニッケル・カドミウム蓄電池（以後ニカド電池
と称する）をはるかに凌ぐ高エネルギー密度電池として
期待されている。しかし、このニッケル・水素蓄電池
は、現在まだ開発段階であり電池の構成方法に基準とな
るものが乏しい。このため、従来のニカド電池の構成方
法を参考にする場合が多い。電池構成時におけるニカド
電池は、通常以下の状態の正・負極をセパレータを介し
て渦巻状に構成し、電解液とともに円筒状の缶に挿入し
密閉される。
（１） 焼結式ニッケル正極の場合は、ニッケルの焼結
基板内部に活物質であるNi（OH）２を充填し、アルカリ
水溶液中で電気化学的に充放電を施したのち水洗・乾燥
を経過した放電状態である。
非焼結式ニッケル正極の場合はNi（OH）２を塗着また
は充填した放電状態である。
（２） カドミウム負極の場合は、焼結式および非焼結
式のいずれもが、アルカリ水溶液中で電気化学的に部分
充電を施したのち水洗・乾燥を経過した未放電状態であ
る。
この理由は、一般にカドミウム負極はニッケル正極に
比べて、高率放電特性に劣るためあらかじめ負極側に放
電可能容量を前記した方法で設け、正極容量によって電
池容量を規制するためである。これによって、負極が、
電池の放電後においても完全放電状態あるいは過放電状
態になることが防止でき、負極活物質の溶出に起因する
サイクル寿命の劣化が抑制される。
ニッケル・水素蓄電池では、ニッケル正極を用いる点
は、ニカド電池と同様であるが、負極活物質に水素を吸
蔵・放出する水素吸蔵合金を使用する（以後、合金負極
と略称する）。一般に、合金負極はカドミウム負極と同
様に、ニッケル正極と比べて高率放電特性に劣るためこ
の場合も前記（１）（２）の状態で電池を構成する必要
がある。そこで合金負極を部分充電状態にするため、以
下の方法が提案されている。
カドミウム負極と同様アルカリ溶液中で部分充電を
施す。
水素ガスの吸蔵放出操作により合金を粉砕するとと
もに一部の水素を残しておき、この状態の合金粉末を用
いて負極を構成する（水素の吸蔵は充電に相当する）。
発明が解決しようとする問題点
前記の方法は、従来のカドミウム負極の化成操作
にあたる煩雑な水素吸蔵操作を必要とする。またの
方法では、電池構成前に大気に触れ水素を吸蔵した活性
な合金が燃焼する危険性があり、仮に燃えなくても大気
中に水素が飛散し、所望の水素吸蔵量が得られにくい。
本発明は上記のような問題点を解消し、簡単な製法に
よる正極と負極を用いて、正極容量により容量が規制さ
れる長寿命の密閉形ニッケル・水素蓄電池を提供するこ
とを目的とする。
問題点を解決するための手段
この問題点を解決するため本発明は、正極中に電気化
学的に酸化される２価のコバルト酸化物、さらに好まし
くは、水酸化コバルトCo（OH）２および／または酸化コ
バルトCoOを予め加えた無化成の正極と、水素吸蔵合金
を支持体に充填あるいは塗着しただけの合金負極とを組
み合わせて電池を構成したものである。
作用
この構成によれば、電池の初充電でニッケル正極では
活物質であるNi（OH）２の他に電気化学的に酸化される
２価のコバルト酸化物が充電され、一方合金負極ではこ
れら両者の充電電気量の合計が充電される。しかし、電
気化学的に酸化される２価のコバルト酸化物は３価のCo
2O3等の高次酸化物になると放電されにくく、正極の放
電は活物質だけが働く。したがって、電池の完全放電後
には合金負極にまだ放電余力を有する結果、電池容量は
正極容量で規制され電池の長寿命化がはかれることとな
る。
実 施 例
以下本発明の実施例を第１図と第２図を参照して説明
する。
Ni（OH）２粉末100重量部に対し平均粒径５μｍの水
酸化コバルトCo（OH）２粉末12重量部の混合物を水で混
練し多孔度約95％、厚さ1.5mmのスポンジ状ニッケル多
孔体中に充填する。これを100℃で乾燥後、加圧して平
均厚さ7.8mmとしたのち幅39mm、長さ60mmの寸法に切断
し、理論容量1070mAhのニッケル正極１を得る。
MmNi3.55Mn0.4Al0.3Co0.75となるように溶解し合金化
された水素吸蔵合金を機械的に粉砕し、平均粒径20μｍ
の合金粉末を得る。この粉末をポリビニルアルコール1.
5wt％水溶液でペースト状にし、厚さ0.9mmにした前記ス
ポンジ状ニッケル多孔体内に充填し、100℃で乾燥後加
圧して平均厚さ0.5mmの極板にする。ついで幅39mm、長
さ80mmに切断し、理論容量1700mAhの合金負極板を得
る。ここで理論容量の算出には230mAh/合金１グラムを
採用した。
このようにして得られた正・負極を汎用のポリアミド
系不織布のセパレータ３を介し、渦巻状に捲回してAAサ
イズのケース４に挿入し、ついで6.3NのKOH水溶液を2.2
cm3加えたのち絶縁リング５を介して正極端子６を取付
けた封口板７で封口した。第１図にこの電池の概略図を
示す。なお、２で示した負極はケース４に直接接触する
のでケース４は負極端子を兼ねる。
第２図のａに、この電池を20℃の雰囲気中で200mAで
7.5時間充電後500mAで放電したときの充放電サイクル数
と放電容量の関係、すなわちサイクル寿命試験の結果を
示す。比較例として、合金負極を予め約400mAhの部分充
電を施した前記合金負極とCo（OH）２粉末を含まない汎
用の正極とを組み合せた電池および部分充電を全く施さ
ない合金負極と前記汎用の正極とを組み合せた電池の同
様なサイクル寿命試験結果をそれぞれｂおよびｃで示
す。この結果、ｂの電池の合金負極には放電後、若干の
水素が吸蔵されているためｃより寿命が改善されている
が、本発明によるａの電池は、ほぼコバルトの充電電気
量（この場合は約400mAhに相当する）相当の水素が放電
後の合金負極中に存在するため優れたサイクル寿命を示
したものと考えられる。なお、正極中の水酸化コバルト
量を減少させ、約300mAhの充電電気量にすると、サイク
ル寿命が低下する傾向が認められた。この結果および高
価なコバルトの使用を考慮すると、1000mAhの正極容量
の場合300〜450mAhの充電電気量、すなわちNi（OH）210
0重量部に対し10〜15重量部の水酸化コバルトCo（OH）
２粉末の添加が適切である。
なお、水素吸蔵合金粉末を発泡状ニッケル多孔体中に
充填するのではなく、汎用の焼結式ニッケル正極に使用
される焼結基板のように芯材に塗着して焼結電極にした
場合は、高率放電特性が若干向上する。この場合は、正
極の放電量に対する合金負極の放電量差が縮まるため、
正極中に加える水酸化コバルトおよび／または酸化コバ
ルト量を若干減少させることが可能である。
なお、この電池系の特性を深く調べるにつれて、放置
後の電池挙動に異常が生じることが判明してきた。すな
わち、金属状態のコバルトを添加すると放置中にコバル
トイオンの溶出量が増大し、短絡の原因となることであ
る。これはコバルト粒子の内部が未充電状態で残り、つ
まり安定な３価または４価のコバルト酸化物に全体が変
化せず、コバルト溶出が放置中に生ずるためと推定され
る。本発明のニッケル・水素蓄電池系では、ニカド電池
と異なり常に水素の環元雰囲気下に置かれていることも
この溶出を促進していると思われる。従って、コバルト
酸化物は全体が３価または４価にまで充電されやすい２
価の酸化物が適切である。
さらに、２価のコバルト化合物の中で、例えばCoCl2,
Co（NO3）2,CoSO4などを検討したが、いずれもCl-,N
O3 -,SO4 2-イオンが電解液中に溶出し、自己放電を増大
させる現象が若干認められた。従って、そのような影響
のないCoOやCo（OH）２が最も適切な２価コバルト化合
物であることが分かった。
発明の効果
本発明による密閉形ニッケル・水素蓄電池は、電池構
成前の正・負極とも化成（充放電あるいは水素の吸蔵・
放出）等の工程を必要としない簡単な製法が採用でき、
サイクル寿命にも優れるという効果が与えられる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the configuration of a nickel-metal hydride storage battery using a hydrogen storage alloy for a negative electrode. 2. Description of the Related Art Nickel-metal hydride storage batteries that use a hydrogen storage alloy that absorbs and releases hydrogen at a high density as a negative electrode material can be hermetically sealed. It is expected as an energy density battery. However, this nickel-metal hydride storage battery is still in the development stage, and there are few standards that can be used for the battery configuration method. For this reason, in many cases, a conventional method for configuring a nickel-cadmium battery is referred to. In a battery configuration, a nickel-cadmium battery usually has the following positive and negative electrodes in a spiral shape with a separator interposed therebetween, and is inserted into a cylindrical can together with an electrolytic solution and hermetically sealed. (1) In the case of a sintered nickel positive electrode, Ni (OH) 2 which is an active material is filled in a nickel sintered substrate, and charged and discharged electrochemically in an alkaline aqueous solution, followed by washing and drying. This is the elapsed discharge state. In the case of the non-sintered nickel positive electrode, the discharge state is such that Ni (OH) 2 is applied or filled. (2) In the case of the cadmium negative electrode, both of the sintered type and the non-sintered type are in an undischarged state after being partially charged electrochemically in an alkaline aqueous solution, then washed and dried. The reason for this is that a cadmium negative electrode is generally inferior in high-rate discharge characteristics to a nickel positive electrode, so that a dischargeable capacity is provided in advance on the negative electrode side by the above-described method, and the battery capacity is regulated by the positive electrode capacity. This allows the negative electrode to
It is possible to prevent the battery from being completely discharged or overdischarged even after the battery is discharged, and to suppress deterioration in cycle life due to elution of the negative electrode active material. A nickel-hydrogen storage battery is similar to a nickel-cadmium battery in that a nickel positive electrode is used, but a hydrogen storage alloy that stores and releases hydrogen in a negative electrode active material is used (hereinafter, simply referred to as an alloy negative electrode). In general, the alloy negative electrode, like the cadmium negative electrode, is inferior in high-rate discharge characteristics as compared with the nickel positive electrode. Therefore, the following method has been proposed to bring the alloy negative electrode into a partially charged state. As in the case of the cadmium negative electrode, partial charging is performed in an alkaline solution. The alloy is pulverized by the operation of storing and releasing hydrogen gas and a part of hydrogen is left, and a negative electrode is formed using the alloy powder in this state (the storage of hydrogen corresponds to charging). Problems to be Solved by the Invention The above-mentioned method requires a complicated hydrogen storage operation equivalent to a conventional cadmium negative electrode formation operation. According to the other method, there is a danger that the active alloy which has absorbed hydrogen by contacting the atmosphere before the construction of the battery may burn. Even if the active alloy does not burn, the hydrogen is scattered in the atmosphere, and it is difficult to obtain a desired amount of hydrogen storage. An object of the present invention is to solve the above problems and to provide a long-life sealed nickel-metal hydride storage battery whose capacity is regulated by the capacity of the positive electrode, using a positive electrode and a negative electrode by a simple manufacturing method. Means for Solving the Problems To solve this problem, the present invention provides a divalent cobalt oxide, more preferably cobalt hydroxide Co (OH) 2 and / or Alternatively, a battery is formed by combining a non-chemically formed positive electrode to which cobalt oxide CoO is added in advance and an alloy negative electrode in which a support is only filled or coated with a hydrogen storage alloy. According to this configuration, in the first charge of the battery, the nickel positive electrode is charged with Ni (OH) 2 as an active material, as well as a divalent cobalt oxide that is electrochemically oxidized, while the alloy negative electrode is charged with both. Is charged. However, divalent cobalt oxide that is electrochemically oxidized is trivalent Co
When a higher oxide such as 2 O 3 is used, it is difficult to discharge, and only the active material works for discharging the positive electrode. Therefore, after the battery is completely discharged, the alloy negative electrode still has a discharge surplus, so that the battery capacity is regulated by the positive electrode capacity and the life of the battery is extended. Embodiment An embodiment of the present invention will be described below with reference to FIG. 1 and FIG. A mixture of 12 parts by weight of cobalt hydroxide Co (OH) 2 powder having an average particle size of 5 μm with respect to 100 parts by weight of Ni (OH) 2 powder is kneaded with water and sponge-like nickel porous with a porosity of about 95% and a thickness of 1.5 mm. Fills the body. This is dried at 100 ° C., pressurized to an average thickness of 7.8 mm, and then cut into dimensions of 39 mm in width and 60 mm in length to obtain a nickel positive electrode 1 having a theoretical capacity of 1070 mAh. MnNi 3.55 Mn 0.4 Al 0.3 Co The hydrogen storage alloy melted and alloyed to become 0.75 is mechanically pulverized, and the average particle size is 20 μm.
To obtain an alloy powder of This powder was added to polyvinyl alcohol 1.
The sponge-like nickel porous material having a thickness of 0.9 mm is made into a paste with a 5 wt% aqueous solution, filled in, dried at 100 ° C., and then pressed to form an electrode plate having an average thickness of 0.5 mm. Then, it is cut into a width of 39 mm and a length of 80 mm to obtain an alloy negative electrode plate having a theoretical capacity of 1700 mAh. Here, 230 mAh / gram of alloy was employed for calculation of the theoretical capacity. The positive and negative electrodes thus obtained are spirally wound through a general-purpose polyamide nonwoven fabric separator 3 and inserted into an AA-size case 4, and then a 6.3N KOH aqueous solution is added to 2.2.
After adding cm 3 , the resultant was sealed with a sealing plate 7 to which a positive electrode terminal 6 was attached via an insulating ring 5. FIG. 1 shows a schematic diagram of this battery. Since the negative electrode indicated by 2 directly contacts the case 4, the case 4 also serves as a negative electrode terminal. FIG. 2a shows that this battery is operated at 200 mA in an atmosphere of 20 ° C.
7 shows the relationship between the number of charge / discharge cycles and discharge capacity when discharging at 500 mA after charging for 7.5 hours, that is, the results of a cycle life test. As a comparative example, a battery obtained by combining the alloy negative electrode in which the alloy negative electrode was partially charged in advance with about 400 mAh and a general-purpose positive electrode not containing Co (OH) 2 powder, and an alloy negative electrode not subjected to any partial charge and the general-purpose negative electrode were used. Similar cycle life test results of the battery combined with the positive electrode are indicated by b and c, respectively. As a result, the life of the alloy negative electrode of the battery b was improved over that of the battery c since a small amount of hydrogen was absorbed after the battery was discharged. (Equivalent to about 400 mAh). It is considered that the excellent cycle life was exhibited because considerable hydrogen was present in the alloy negative electrode after discharge. Note that when the amount of cobalt hydroxide in the positive electrode was reduced to about 300 mAh of charge electricity, the cycle life tended to decrease. Considering this result and the use of expensive cobalt, a charge capacity of 300 to 450 mAh for a positive electrode capacity of 1000 mAh, ie, Ni (OH) 2 10
10 to 15 parts by weight of cobalt hydroxide Co (OH) per 0 parts by weight
The addition of two powders is appropriate. When the hydrogen storage alloy powder is not filled in the foamed nickel porous body, but is coated on a core material like a sintered substrate used for a general-purpose sintered nickel positive electrode to form a sintered electrode , The high rate discharge characteristics are slightly improved. In this case, since the difference in the discharge amount of the alloy negative electrode with respect to the discharge amount of the positive electrode is reduced,
It is possible to slightly reduce the amount of cobalt hydroxide and / or cobalt oxide added to the positive electrode. As the characteristics of the battery system were deeply examined, it was found that the battery behavior after standing was abnormal. That is, when cobalt in a metal state is added, the elution amount of cobalt ions increases during standing, which causes a short circuit. This is presumably because the inside of the cobalt particles remains in an uncharged state, that is, the whole does not change into a stable trivalent or tetravalent cobalt oxide, and cobalt elution occurs during standing. In the nickel-metal hydride storage battery system of the present invention, unlike the nickel-cadmium battery, the fact that the nickel-hydrogen storage battery is always placed under the hydrogen reducing atmosphere seems to promote this elution. Therefore, the cobalt oxide is easily charged to trivalent or tetravalent as a whole.
Multivalent oxides are suitable. Further, among divalent cobalt compounds, for example, CoCl 2 ,
Co (NO 3 ) 2 , CoSO 4 etc. were examined, but all were Cl − , N
O 3 − and SO 4 2− ions were eluted into the electrolyte solution, and a phenomenon of increasing self-discharge was observed. Therefore, it was found that CoO or Co (OH) 2 having no such influence is the most appropriate divalent cobalt compound. Effect of the Invention The sealed nickel-metal hydride storage battery according to the present invention is capable of forming (charging / discharging or hydrogen storage /
Release) and other simple processes that do not require
The effect that the cycle life is also excellent is provided.
【図面の簡単な説明】
第１図は本発明の実施例に示した密閉形ニッケル・水素
蓄電池の構成図、第２図は20℃雰囲気における密閉形ニ
ッケル・水素蓄電池の充放電サイクル寿命試験の結果を
示す図である。
１……正極、２……負極、３……セパレータ、４……ケ
ース。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of a sealed nickel-metal hydride storage battery shown in an embodiment of the present invention, and FIG. 2 is a diagram showing a charge / discharge cycle life test of the sealed nickel-metal hydride storage battery in a 20 ° C. atmosphere. It is a figure showing a result. 1 ... Positive electrode, 2 ... Negative electrode, 3 ... Separator, 4 ... Case.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 生駒 宗久 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 伊藤 康子 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 昭61−39461（ＪＰ，Ａ) 特開 昭61−156639（ＪＰ，Ａ) 特開 昭62−15769（ＪＰ，Ａ) 特開 昭63−236274（ＪＰ，Ａ) 特公 昭57−5018（ＪＰ，Ｂ２) ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Munehisa Ikoma Matsushita, 1006 Kadoma, Kazuma, Osaka Kiki Sangyo Co., Ltd. (72) Inventor Yasuko Ito Matsushita, 1006 Kadoma, Kazuma, Osaka Kiki Sangyo Co., Ltd. (56) References JP-A-61-39461 (JP, A) JP-A-61-156639 (JP, A) JP-A-62-15769 (JP, A) JP-A-63-236274 (JP, A) Tokiko Sho 57-5018 (JP, B2)
Claims (1)
素吸蔵合金で構成される負極と、セパレータと電解液と
を密閉容器に収納した密閉形ニッケル・水素蓄電池であ
って、前記正極には２価のコバルト酸化物の微粉末が添
加されたことを特徴とする水素吸蔵合金を用いた密閉形
ニッケル・水素蓄電地。 ２．２価のコバルト酸化物が、水酸価コバルト（Co（O
H）２）、酸化コバルト（CoO）の少なくとも一方である
特許請求の範囲第１項記載の水素吸蔵合金を用いた密閉
形ニッケル・水素蓄電池。(57) [Claims] A non-sintered positive electrode mainly composed of nickel, a negative electrode mainly composed of a hydrogen storage alloy, a sealed nickel-hydrogen storage battery containing a separator and an electrolyte in a closed container, wherein the positive electrode Is a sealed nickel-hydrogen storage area using a hydrogen storage alloy, to which fine powder of divalent cobalt oxide is added. 2.2 When the divalent cobalt oxide has a hydroxyl value of cobalt (Co (O
H) A sealed nickel-metal hydride storage battery using a hydrogen storage alloy according to claim 1, which is at least one of 2 ) and cobalt oxide (CoO).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62290019A JP2733230B2 (en) | 1987-11-17 | 1987-11-17 | Sealed nickel-hydrogen storage battery using hydrogen storage alloy |
| EP88302472A EP0284333B1 (en) | 1987-03-25 | 1988-03-22 | Sealed type nickel-hydride battery and production process thereof |
| DE3854727T DE3854727T2 (en) | 1987-03-25 | 1988-03-22 | Gas-tight nickel hydride battery and method of manufacture. |
| US07/171,739 US4935318A (en) | 1987-03-25 | 1988-03-22 | Sealed type nickel-hydride battery and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62290019A JP2733230B2 (en) | 1987-11-17 | 1987-11-17 | Sealed nickel-hydrogen storage battery using hydrogen storage alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01132066A JPH01132066A (en) | 1989-05-24 |
| JP2733230B2 true JP2733230B2 (en) | 1998-03-30 |
Family
ID=17750736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62290019A Expired - Lifetime JP2733230B2 (en) | 1987-03-25 | 1987-11-17 | Sealed nickel-hydrogen storage battery using hydrogen storage alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2733230B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2610565B2 (en) * | 1992-12-10 | 1997-05-14 | 古河電池株式会社 | Manufacturing method of sealed alkaline storage battery using paste-type nickel positive electrode |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS575018A (en) * | 1980-06-13 | 1982-01-11 | Olympus Optical Co Ltd | Focus controller |
| JPS6139461A (en) * | 1984-07-31 | 1986-02-25 | Toshiba Corp | Manufacture of enclosed alkaline battery |
-
1987
- 1987-11-17 JP JP62290019A patent/JP2733230B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01132066A (en) | 1989-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2730121B2 (en) | Alkaline secondary battery and manufacturing method thereof | |
| EP0284333B1 (en) | Sealed type nickel-hydride battery and production process thereof | |
| JP3246345B2 (en) | Nickel positive electrode for alkaline storage battery and nickel-hydrogen storage battery using the same | |
| JP3351261B2 (en) | Nickel positive electrode and nickel-metal hydride storage battery using it | |
| JP3042043B2 (en) | Nickel positive electrode for alkaline storage battery and nickel-hydrogen storage battery using the same | |
| US20030017395A1 (en) | Nickel-hydrogen storage battery and method of producing the same | |
| JP3245072B2 (en) | Hydrogen storage alloy electrode and method for producing the same | |
| EP1054463A1 (en) | Positive electrode, alkaline secondary battery, and method for manufacturing alkaline secondary battery | |
| US5840442A (en) | Method for activating an alkaline rechargeable battery | |
| US5131920A (en) | Method of manufacturing sealed rechargeable batteries | |
| JP2733230B2 (en) | Sealed nickel-hydrogen storage battery using hydrogen storage alloy | |
| JP2989877B2 (en) | Nickel hydride rechargeable battery | |
| JP2987873B2 (en) | Alkaline storage battery | |
| JP2823301B2 (en) | Hydrogen storage alloy electrode | |
| JPH10255775A (en) | Hydrogen storage alloy electrode and its manufacture | |
| JPS61233967A (en) | Manufacture of sealed nickel-hydrogen storage battery | |
| JP2857148B2 (en) | Construction method of sealed nickel-hydrogen storage battery | |
| JP3118812B2 (en) | Alkaline storage battery | |
| JPS63239771A (en) | Paste-type hydrogen occluded electrode | |
| JP2564172B2 (en) | Cadmium negative electrode plate and alkaline secondary battery using the negative electrode plate | |
| JP2568967B2 (en) | Manufacturing method of sealed nickel-hydrogen secondary battery | |
| JP2591985B2 (en) | Cadmium negative electrode plate and alkaline secondary battery using the negative electrode plate | |
| JP2591982B2 (en) | Cadmium negative electrode plate and alkaline secondary battery using the negative electrode plate | |
| JPS61233966A (en) | Manufacture of sealed nickel-hydrogen storage battery | |
| JP2564176B2 (en) | Cadmium negative electrode plate for sealed alkaline secondary battery and sealed alkaline secondary battery using the negative electrode plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |