JP2867572B2 - Sealed metal oxide / hydrogen storage battery - Google Patents
Sealed metal oxide / hydrogen storage batteryInfo
- Publication number
- JP2867572B2 JP2867572B2 JP2076003A JP7600390A JP2867572B2 JP 2867572 B2 JP2867572 B2 JP 2867572B2 JP 2076003 A JP2076003 A JP 2076003A JP 7600390 A JP7600390 A JP 7600390A JP 2867572 B2 JP2867572 B2 JP 2867572B2
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen storage
- metal oxide
- activated carbon
- storage battery
- 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.)
- Expired - Fee Related
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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/52—Removing gases inside the secondary cell, e.g. by absorption
-
- 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、水素吸蔵合金を負極材料とし、金属酸化物
電極を正極とする密閉形金属酸化物・水素蓄電池の改良
に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a sealed metal oxide / hydrogen storage battery using a hydrogen storage alloy as a negative electrode material and a metal oxide electrode as a positive electrode.
従来の技術 従来、負極材料として水素吸蔵合金を用いたこの種の
アルカリ蓄電池は、高エネルギー密度、低公害電池とし
て注目され、金属酸化物正極との組合わせによる密閉形
金属酸化物・水素電池が提案されている。2. Description of the Related Art Conventionally, this type of alkaline storage battery using a hydrogen storage alloy as a negative electrode material has attracted attention as a high energy density, low pollution battery. Proposed.
水素吸蔵合金は使用時に電解液中で酸化されやすく、
通常その表面に水酸化物が形成され、次第に電極容量が
減少してやがて寿命に達する。そして、密閉形金属酸化
物・水素蓄電池では過充電時に金属酸化物例えば、ニッ
ケル正極から酸素が発生するが、上述したように水素吸
蔵合金の劣化が起こると、酸素と合金が吸蔵している水
素との反応が妨げられ、酸素が吸収されなくなる。さら
に、水素吸蔵合金負極から水素が発生するようになるた
め、電池内圧を上昇させる原因となる。The hydrogen storage alloy is easily oxidized in the electrolyte during use,
Usually, a hydroxide is formed on the surface, and the electrode capacity gradually decreases, and the life is eventually reached. In a sealed metal oxide / hydrogen storage battery, oxygen is generated from a metal oxide, for example, a nickel positive electrode at the time of overcharging. However, when the hydrogen storage alloy is deteriorated as described above, oxygen and hydrogen stored by the alloy are stored. Reaction is prevented and oxygen is no longer absorbed. Further, hydrogen is generated from the negative electrode of the hydrogen storage alloy, which causes an increase in battery internal pressure.
従来、上記のような不都合を解消するため、負極に触
媒を添加する方法が提案されている（特開昭62−291862
号公報）。しかし、これは水素吸蔵合金粉末、触媒およ
び結合剤等で水素吸蔵合金負極を形成したものであり、
この方法では、とくに高率充電時において、触媒性能を
最大限に発揮させることが困難であり、充分な効果を発
揮させるには多量の触媒物質が必要であった。Conventionally, a method of adding a catalyst to a negative electrode has been proposed in order to solve the above-mentioned inconvenience (Japanese Patent Application Laid-Open No. 62-291862).
No.). However, this is a hydrogen storage alloy negative electrode formed with a hydrogen storage alloy powder, a catalyst and a binder, etc.
In this method, it is difficult to maximize the catalytic performance, particularly at the time of high-rate charging, and a large amount of a catalytic substance is required to exhibit a sufficient effect.
発明が解決しようとする課題 本発明は、上記問題点を解決するためになされたもの
であり、電解液中での水素吸蔵合金の酸化を防止して電
池寿命を延ばすとともに、電池内で発生する酸素およ
び、水素による電池内圧の上昇を防止することができる
密閉形金属酸化物・水素蓄電池を提供することを目的と
する。Problems to be Solved by the Invention The present invention has been made in order to solve the above-mentioned problems, and prevents oxidation of a hydrogen storage alloy in an electrolytic solution to extend battery life, and is generated in a battery. An object of the present invention is to provide a sealed metal oxide / hydrogen storage battery capable of preventing an increase in battery internal pressure due to oxygen and hydrogen.
課題を解決するための手段 本発明の密閉形金属酸化物・水素蓄電池は、金属酸化
物例えば、ニッケル酸化物，カドミウム酸化物等からな
る正極、水素吸蔵合金電極からなる負極の間にセパレー
タを介在させた電極体と、活性炭を担体とした触媒体と
で構成し、これらを密閉形容器に収容し、アルカリ水溶
液電解液を充填して密封したことを特徴とするものであ
る。なお、本発明において用いられる触媒担体としての
活性炭は、フェノール系原料を出発物質として得られた
活性炭繊維からなり、その形状としては、クロス状（織
物状）もしくはフェルト状であることが好ましい。Means for Solving the Problems In the sealed metal oxide / hydrogen storage battery of the present invention, a separator is interposed between a positive electrode made of a metal oxide such as nickel oxide and cadmium oxide and a negative electrode made of a hydrogen storage alloy electrode. And a catalyst body using activated carbon as a carrier. These are housed in a closed container, filled with an alkaline aqueous solution, and sealed. The activated carbon used as a catalyst carrier in the present invention is composed of activated carbon fibers obtained from a phenolic raw material as a starting material, and the shape thereof is preferably a cloth (woven) or a felt.
さらに、前記活性炭担体に担持する触媒としてはたと
えば、白金（Pt），パラジウム（Pd），ロジウム（R
d），ルテニウム（Ru）から選ばれる少なくとも１種の
金属を担持させたものを挙げることができる。Further, as the catalyst supported on the activated carbon carrier, for example, platinum (Pt), palladium (Pd), rhodium (R
d) and those carrying at least one metal selected from ruthenium (Ru).
作用 このような密閉形金属酸化物・水素蓄電池によれば、
高活性な触媒が電池内に配置されているため、電池内で
発生する酸素と水素との反応を効率よく促進させ迅速に
水にもどすことができる。従って従来問題であった電池
内圧の上昇を抑制し、安全性を高めるのみでなく、電池
寿命をも向上させることができる。Action According to such a sealed metal oxide / hydrogen storage battery,
Since the highly active catalyst is disposed in the battery, the reaction between oxygen and hydrogen generated in the battery can be efficiently promoted and quickly returned to water. Therefore, it is possible to suppress the increase in the internal pressure of the battery, which has been a problem in the related art, and to improve the safety as well as the battery life.
実施例 以下、本発明の実施例を図面に従い説明する。負極で
使用する水素吸蔵合金としては、MmNi4.2Mn8.8（Mmはミ
シュメタル）を選び、この合金のインゴットを耐圧容器
内に収容して、水素の吸蔵および除去を行ない活性化処
理を施した。この水素吸蔵合金粉末に適量（3wt％〜5wt
％）のポリビニルアルコールを結着剤として加え、よく
混合し、発泡状金属多孔体内に充填し、加圧乾燥後リー
ドを取り付け負極電極とした。また、正極には公知の焼
結形ニッケルを用い、セパレータ（ポリプロピレン製フ
ィルムおよびナイロン製フィルムより構成）を介在させ
全体を渦巻状に巻いて電極体を形成させた。さらに活性
炭を担体とした触媒体を組み込み、アルカリ水溶液（30
％KOH）電解液を注入して密閉形金属酸化物・水素蓄電
池を作製した。前記活性炭には、ヤシガラ粒状炭（約¢
２〜3mmのタブレット状）と、フェノール系（ノボラッ
ク硬化樹脂）原料を出発物質としたクロス状（織物）、
フェルト状（マット状とも言う。）の布地で、ヘリウム
（He）と水蒸気の混合ガス雰囲気下で800℃の温度で賦
活化を行って得られたクロス状・フェルト状の活性炭繊
維を使用した。また、触媒物質としてはパラジウム（P
d）を用い、活性炭担体に対し0.1wt％担持させた。担持
方法は、所定濃度の塩化パラジウム水溶液（PdCl2）を
調整し、これに活性炭担体を浸漬させ、乾燥後、水素10
％の窒素ガス気流中において350℃で活性化処理をおこ
なって作製した。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. MmNi 4.2 Mn 8.8 (Mm is Mishmetal) was selected as the hydrogen storage alloy used for the negative electrode, and an ingot of this alloy was housed in a pressure-resistant container, and hydrogen was stored and removed, and activation treatment was performed. An appropriate amount (3 wt% to 5 wt%)
%) Of polyvinyl alcohol was added as a binder, mixed well, filled in a foamed metal porous body, dried under pressure, and a lead was attached to form a negative electrode. A known sintered nickel was used for the positive electrode, and the whole was spirally wound with a separator (composed of a polypropylene film and a nylon film) interposed therebetween to form an electrode body. In addition, a catalyst using activated carbon as a carrier is incorporated, and an alkaline aqueous solution (30
% KOH) electrolyte was injected to produce a sealed metal oxide / hydrogen storage battery. The activated carbon includes coconut shell granular charcoal (about ¢
A tablet (2-3 mm tablet)) and a cloth (textile) starting from a phenolic (novolak cured resin) material.
Cloth and felt activated carbon fibers obtained by activating at a temperature of 800 ° C. in a mixed gas atmosphere of helium (He) and steam on a felt-like (mat-like) cloth were used. In addition, palladium (P
Using d), 0.1 wt% was supported on the activated carbon carrier. The supporting method is to prepare a predetermined concentration aqueous solution of palladium chloride (PdCl 2 ), immerse the activated carbon carrier in this, dry it,
% In a nitrogen gas stream at 350 ° C.
さらに、これらの活性炭を担体とする触媒をフッ素樹
脂による溌水処理を施したものもまた同時に作製した。
なお、溌水処理は、フッ素樹脂の懸濁液（ダイキン工業
製 商品名 Ｄ−１）に浸漬後、100℃で乾燥して調製
した。電極体と触媒体の本実施例の具体的な構成は、第
１図の単２形の密閉形金属酸化物・水素蓄電池で示し
た。Further, those obtained by subjecting these activated carbon-supported catalysts to a water-repellent treatment with a fluororesin were also produced at the same time.
The water repellent treatment was prepared by dipping in a suspension of a fluororesin (D-1 manufactured by Daikin Industries) and drying at 100 ° C. The specific structure of the present embodiment of the electrode body and the catalyst body was shown in the form of a C-type sealed metal oxide / hydrogen storage battery of FIG.
第１図において、水素吸蔵合金からなる負極板１とニ
ッケル正極２はセパレータ３を介して渦巻状に巻かれて
ケース４内に配置されている。この電極体上には絶縁板
５を介して、電池内に発生する水素ガスおよび酸素ガス
を水に変換するための活性炭繊維担体からなる触媒体６
を入れて安全弁を有する封口板７でケースを閉じること
で密閉化されている。８は正極リード９と接続している
正極端子である。In FIG. 1, a negative electrode plate 1 made of a hydrogen storage alloy and a nickel positive electrode 2 are spirally wound via a separator 3 and arranged in a case 4. On the electrode body, a catalyst body 6 made of an activated carbon fiber carrier for converting hydrogen gas and oxygen gas generated in the battery into water via an insulating plate 5.
Is sealed by closing the case with a sealing plate 7 having a safety valve. Reference numeral 8 denotes a positive electrode terminal connected to the positive electrode lead 9.
第２図に本実施例の密閉形ニッケル・水素蓄電池にお
ける充放電サイクルと電池内圧の変化を示した。蓄電池
の充放電条件は、600mAで５時間充填し、400mAで放電し
た。この時の充放電サイクル試験の温度は室温とし、各
電池の充放電サイクル毎の内圧を圧力センサーにより測
定したものである。その結果、ａで示す本発明のクロス
状活性炭繊維からなる触媒体を使用した電池、およびｂ
で示すフェルト状活性炭繊維からなる触媒体を使用した
電池の内圧は各サイクル（50サイクル,100サイクル,150
サイクル,200サイクル,250サイクル）において、電池内
圧の目標値5kg/cm2（安全弁の作動値）に対し、ヤシガ
ラ粒状活性炭より作製した電池ｃ、の内圧よりも低い値
を示した。FIG. 2 shows the charge / discharge cycle and the change in battery internal pressure in the sealed nickel-metal hydride storage battery of this embodiment. The battery was charged and discharged at 600 mA for 5 hours and discharged at 400 mA. The temperature of the charge / discharge cycle test at this time was room temperature, and the internal pressure of each battery in each charge / discharge cycle was measured by a pressure sensor. As a result, a battery using the catalyst body composed of the cross-shaped activated carbon fiber of the present invention indicated by a, and b
The internal pressure of the battery using a catalyst body made of felt-like activated carbon fiber indicated by
(Cycle, 200 cycles, 250 cycles), the internal pressure of the battery c made from coconut shell granular activated carbon was lower than the target value of the internal pressure of the battery of 5 kg / cm 2 (operation value of the safety valve).
また、第３図に示す如く、溌水処理を施すことによっ
ても電池内圧をより低くする効果が認められた。Further, as shown in FIG. 3, the effect of lowering the battery internal pressure was also recognized by performing the water repellent treatment.
次にフェノール系以外の出発原料から得られた活性炭
繊維について記述する。フェノール系以外では、ピッチ
系，アクリル系，レーヨン系から得られる活性炭繊維が
ある。これら各々の活性炭繊維（フェルト状）を用い、
先の実施例と同様に密閉形ニッケル・水素蓄電池を作製
し同様に評価した結果を第４図に示す。その結果、電池
の内圧は、いずれの電池もヤシガラ活性炭を用いた電池
（第２図のｃ）よりも、各サイクル（50サイクル,100サ
イクル,150サイクル,200サイクル,250サイクル）で、電
池内圧が低い値を示した。また、そのときの序列は、フ
ェノール系，レーヨン系，アクリル系，ピッチ系の順で
あり、フェノール系がもっとも優れていた。なお、活性
炭繊維の物性面でも、フェノール系活性炭が、もっとも
強くて柔軟性に富んでいた。Next, activated carbon fibers obtained from starting materials other than the phenol type are described. Besides the phenol type, there are activated carbon fibers obtained from pitch type, acrylic type and rayon type. Using each of these activated carbon fibers (felt shape)
FIG. 4 shows the results of producing a sealed nickel-metal hydride storage battery and evaluating it in the same manner as in the previous embodiment. As a result, the internal pressure of each battery was higher in each cycle (50 cycles, 100 cycles, 150 cycles, 200 cycles, and 250 cycles) than in the battery using coconut shell activated carbon (c in FIG. 2). Showed a low value. The order at that time was phenol-based, rayon-based, acrylic-based, and pitch-based, with phenol-based being the best. In addition, the phenol-based activated carbon was the strongest and most flexible in terms of the physical properties of the activated carbon fiber.
以上、本発明を実施例に従い説明したが特に、負極材
料，正極材料および、セパレータ材料等は、これらに限
定されるものではない。本発明で言うクロス状（織物
状）活性炭繊維とは、紐状の形状等も含むものである。As described above, the present invention has been described in accordance with the embodiments. In particular, the negative electrode material, the positive electrode material, the separator material, and the like are not limited to these. The cloth-shaped (woven fabric) activated carbon fiber referred to in the present invention includes a cord-like shape and the like.
発明の効果 以上記述した如く本発明によれば、電池寿命が長く、
電池内で発生する酸素および、水素による電池内圧の上
昇を防止することができる密閉形金属酸化物・水素蓄電
池を提供できるものである。According to the present invention as described above, the battery life is long,
An object of the present invention is to provide a sealed metal oxide / hydrogen storage battery capable of preventing an increase in battery internal pressure due to oxygen and hydrogen generated in the battery.
第１図は本発明の実施例における触媒体を用いた密閉形
金属酸化物・水素蓄電池の構成を示す断面略図、第２
図，第３図および第４図は実施例の電池の充放電サイク
ルに伴う電池内圧変化を示す図である。 １……負極、２……正極、３……セパレータ、４……電
池ケース、５……絶縁板、６……触媒体、７……封口
板、８……正極端子、９……正極リード。FIG. 1 is a schematic sectional view showing the structure of a sealed metal oxide / hydrogen storage battery using a catalyst according to an embodiment of the present invention.
FIG. 3, FIG. 3 and FIG. 4 are diagrams showing changes in the internal pressure of the battery according to the charge / discharge cycle of the battery of the embodiment. DESCRIPTION OF SYMBOLS 1 ... Negative electrode, 2 ... Positive electrode, 3 ... Separator, 4 ... Battery case, 5 ... Insulating plate, 6 ... Catalyst body, 7 ... Sealing plate, 8 ... Positive electrode terminal, 9 ... Positive electrode lead .
───────────────────────────────────────────────────── フロントページの続き (72)発明者 門内 英治 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62−272475（ＪＰ，Ａ) 特公 昭50−3849（ＪＰ，Ｂ１) 特公 昭50−24420（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.6，ＤＢ名) H01M 10/24 - 10/34 H01M 10/52────────────────────────────────────────────────── ─── Continuation of the front page (72) Eiji Kaduchi, Inventor 1006 Odakadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-62-272475 (JP, A) JP-A 50- 3849 (JP, B1) JP50-24420 (JP, B1) (58) Fields investigated (Int. Cl. 6 , DB name) H01M 10/24-10/34 H01M 10/52
Claims (5)
金電極からなる負極との間にセパレータを介在させた電
極体と、活性炭を担体とした触媒体とで構成され、アル
カリ水溶液を電解液とする密閉形金属酸化物・水素蓄電
池において、前記活性炭が活性炭繊維からなることを特
徴とする密閉形金属酸化物・水素蓄電池。An electrolyte comprising an electrode body in which a separator is interposed between a positive electrode made of a metal oxide electrode and a negative electrode made of a hydrogen storage alloy electrode, and a catalyst body using activated carbon as a carrier. A sealed metal oxide / hydrogen storage battery according to claim 1, wherein said activated carbon is made of activated carbon fiber.
性炭繊維からなることを特徴とする特許請求の範囲第１
項記載の密閉形金属酸化物・水素蓄電池。2. The catalyst body according to claim 1, wherein the carrier of the catalyst body is made of activated carbon fibers in the form of cloth (woven fabric).
A sealed metal oxide / hydrogen storage battery as described in the above item.
からなることを特徴とする特許請求の範囲第１項又は，
第２項記載の密閉形金属酸化物・水素蓄電池。3. The method according to claim 1, wherein the carrier of the catalyst body is made of felt-like activated carbon fiber.
3. The sealed metal oxide / hydrogen storage battery according to claim 2.
化ノボラック繊維）であることを特徴とする特許請求の
範囲第１項，第２項および第３項のいずれかに記載の密
閉形金属酸化物・水素蓄電池。4. A hermetically sealed metal oxide according to claim 1, wherein the starting material of the activated carbon fiber is a phenolic (hardened novolak fiber). Goods and hydrogen storage batteries.
樹脂により溌水性処理したことを特徴とする特許請求の
範囲第１項，第２項，第３項および第４項のいずれかに
記載の密閉形金属酸化物・水素蓄電池。5. A sealing device according to claim 1, wherein the surface of the catalyst body is subjected to a water-repellent treatment with a fluororesin or a silicone resin. Type metal oxide / hydrogen storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2076003A JP2867572B2 (en) | 1990-03-26 | 1990-03-26 | Sealed metal oxide / hydrogen storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2076003A JP2867572B2 (en) | 1990-03-26 | 1990-03-26 | Sealed metal oxide / hydrogen storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03274679A JPH03274679A (en) | 1991-12-05 |
| JP2867572B2 true JP2867572B2 (en) | 1999-03-08 |
Family
ID=13592631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2076003A Expired - Fee Related JP2867572B2 (en) | 1990-03-26 | 1990-03-26 | Sealed metal oxide / hydrogen storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2867572B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170276429A1 (en) * | 2016-03-22 | 2017-09-28 | Samsung Sdi Co., Ltd. | Apparatus for drying electrode plate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0947010B1 (en) * | 1996-11-12 | 2015-04-01 | Philadelphia Scientific LLC | The use of catalysts in standby valve-regulated lead acid cells |
-
1990
- 1990-03-26 JP JP2076003A patent/JP2867572B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170276429A1 (en) * | 2016-03-22 | 2017-09-28 | Samsung Sdi Co., Ltd. | Apparatus for drying electrode plate |
| US10184717B2 (en) * | 2016-03-22 | 2019-01-22 | Samsung Sdi Co., Ltd. | Apparatus for drying electrode plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03274679A (en) | 1991-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2730121B2 (en) | Alkaline secondary battery and manufacturing method thereof | |
| US5032475A (en) | Nickel-metal hydride secondary cell | |
| US3850694A (en) | Low pressure nickel hydrogen cell | |
| US3959018A (en) | Low pressure nickel hydrogen cell | |
| JPH0278155A (en) | Dry manufacturing process of hydrogen storage alloy electrode | |
| US4994334A (en) | Sealed alkaline storage battery and method of producing negative electrode thereof | |
| US5034289A (en) | Alkaline storage battery and method of producing negative electrode thereof | |
| JP2653415B2 (en) | Battery provided with gas diffusion electrode and method for charging and discharging the same | |
| JPH11233106A (en) | Alkaline secondary battery and its manufacture | |
| US3592693A (en) | Consumable metal anode with dry electrolytic enclosed in envelope | |
| JP2867572B2 (en) | Sealed metal oxide / hydrogen storage battery | |
| Kaiya et al. | Improvement in cycle life performance of high capacity nickel-metal hydride battery | |
| JP3345889B2 (en) | Manufacturing method of alkaline storage battery and its negative electrode | |
| Geng et al. | Hydrogen-absorbing alloys for the NICKEL–METAL hydride battery | |
| US20040248005A1 (en) | Negative electrodes including highly active, high surface area hydrogen storage material for use in electrochemical cells | |
| JPS5937667A (en) | Metal oxide-hydrogen battery | |
| JP2867570B2 (en) | Sealed metal oxide / hydrogen storage battery | |
| JPH0447676A (en) | Manufacture of sealed storage battery | |
| JP2867571B2 (en) | Sealed metal oxide / hydrogen storage battery | |
| US6129789A (en) | Surface treatment method of hydrogen absorbing alloy | |
| JP3006371B2 (en) | Battery | |
| JPH08264174A (en) | Hydrogen storage alloy cathode and its preparation | |
| JP2629807B2 (en) | Hydrogen storage alloy electrode and its manufacturing method | |
| JP2932711B2 (en) | Manufacturing method of hydrogen storage alloy electrode for alkaline battery | |
| JP2591982B2 (en) | Cadmium negative electrode plate and alkaline secondary battery using the negative electrode plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |