JPS63146354A - Manufacture of hydrogen absorbing electrode - Google Patents
Manufacture of hydrogen absorbing electrodeInfo
- Publication number
- JPS63146354A JPS63146354A JP61291832A JP29183286A JPS63146354A JP S63146354 A JPS63146354 A JP S63146354A JP 61291832 A JP61291832 A JP 61291832A JP 29183286 A JP29183286 A JP 29183286A JP S63146354 A JPS63146354 A JP S63146354A
- Authority
- JP
- Japan
- Prior art keywords
- aqueous solution
- hydrogen absorbing
- alkaline aqueous
- battery
- hydrogen storage
- 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
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000001257 hydrogen Substances 0.000 title claims abstract description 29
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000007864 aqueous solution Substances 0.000 claims abstract description 23
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000007654 immersion Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 150000002431 hydrogen Chemical class 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 abstract description 4
- 239000002344 surface layer Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000002791 soaking Methods 0.000 abstract 2
- 230000003252 repetitive effect Effects 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M4/242—Hydrogen storage electrodes
-
- 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
- H01M4/38—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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/80—Porous plates, e.g. sintered carriers
- H01M4/808—Foamed, spongy materials
-
- 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】
産業上の利用分野
本発明は、電解液中で電気化学的に、水素を可逆的に吸
蔵・放出する水素吸蔵合金を電極材料として用いた水素
吸蔵電標の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for producing a hydrogen storage electrode using a hydrogen storage alloy that reversibly stores and releases hydrogen electrochemically in an electrolytic solution as an electrode material. It is related to.
従来の技術
従来、この種の製造方法は、電気化学的に水素を吸蔵放
出可能な水素吸蔵合金粉末を結着剤とよく混練して、ペ
ースト状とし、電極支持体（金属多孔体あるいはパンチ
ングメタルなど）に加圧充填後、乾燥することにより水
素吸蔵電極を製造していた（実公昭５７−３４５７８号
公報）。Conventional technology Conventionally, this type of production method involves thoroughly kneading a hydrogen-absorbing alloy powder capable of absorbing and desorbing hydrogen electrochemically with a binder to form a paste, and then forming an electrode support (porous metal or punched metal) into a paste. etc.) and then drying the hydrogen storage electrode (Utility Model Publication No. 57-34578).
発明が解決しようとする問題点
このような従来の構成では、水素吸蔵電極を負極とし、
セパレータを介して公知のニッケル正極と組み合わせて
、密閉形アルカリ蓄電池を構成した場合、過充電時に正
極から発生する酸素ガスにより、水素吸蔵電極中の水素
吸蔵合金が酸化され、水酸化物を形成するという問題が
あった。その結果、負極である水素吸蔵電極の充電効率
が低下し、密閉電池中で水素ガスが多量に発生し、電池
内圧が上昇して漏液や電池の内部抵抗の増大により、充
放電サイクル寿命が短くなるという欠点があった。Problems to be Solved by the Invention In such a conventional configuration, the hydrogen storage electrode is used as a negative electrode,
When a sealed alkaline storage battery is constructed by combining a known nickel positive electrode through a separator, the hydrogen storage alloy in the hydrogen storage electrode is oxidized by the oxygen gas generated from the positive electrode during overcharging, forming a hydroxide. There was a problem. As a result, the charging efficiency of the hydrogen storage electrode, which is the negative electrode, decreases, and a large amount of hydrogen gas is generated in the sealed battery, which increases the internal pressure of the battery and causes leakage and an increase in the battery's internal resistance, which shortens the charge/discharge cycle life. It had the disadvantage of being short.
本発明は、このような問題点を解決するもので、水素吸
蔵電極の耐酸化性を向上させることにより、電池内圧の
安定性とサイクル寿命を向上することを目的とするもの
である。The present invention is intended to solve these problems, and aims to improve the stability of battery internal pressure and cycle life by improving the oxidation resistance of the hydrogen storage electrode.
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に本発明は、水素吸蔵合金粉
末を結着剤と共に、金属多孔体に充填するか、あるいは
芯金の両面に塗着した後、比重１．１０以上のアルカリ
水溶液中に浸漬する工程を採用して、そのアルカリ水溶
液の温度を４５〜１００℃とし、浸漬時間を０，２〜２
４時間として表面処理を施したものである。Means for Solving the Problems In order to solve this problem, the present invention provides hydrogen storage alloy powder that is filled with a binder into a metal porous body or coated on both sides of a core metal, and then 1. Adopt the process of immersing in an aqueous alkali solution of 10 or more, the temperature of the aqueous alkali solution is 45 to 100 ° C, and the immersion time is 0.2 to 2.
The surface treatment was performed for 4 hours.
作用
この操作により、水素吸蔵電極中の水素吸蔵合金粉末の
表面層が一部溶解し、再び析出することにより粉末表面
層に酸化物薄層あるいは水酸化物薄層が形成され、この
薄層が水素吸蔵合金本体の腐食を抑制して耐酸化性を向
上させる。その結果、電池内圧が充放電サイクルの繰り
返しによって上昇せず、電池寿命の向上を可能にするこ
ととなる。Effect: This operation partially dissolves the surface layer of the hydrogen storage alloy powder in the hydrogen storage electrode and precipitates again, forming a thin oxide layer or hydroxide layer on the powder surface layer. Suppresses corrosion of the hydrogen storage alloy body and improves oxidation resistance. As a result, the battery internal pressure does not increase due to repeated charge/discharge cycles, making it possible to improve battery life.
実施例
第１図は本発明の一実施例による充放電サイクル数と放
電容量との関係を示す図である。市販のミツシュメタル
Ｍｕ（希土類元素の混合物、例えばＣｅ４５ｗｔ％、Ｌ
ＩＬ３０ｗｔ％、Ｎｂ５ｗｔ％他の希土類元素約２０ｗ
ｔ％）とＮｉ、ムｌ、Ｍｎ、Ｃｏの各試料をＭｍ、Ｎｉ
、、、Ｍｎ０．４．ムｌｏ、ｓ ｌ”０．５の組成比に
秤量して混合した。これらの試料をアーク溶解炉に入れ
て、１０〜１０ ＴＯｒｒまで真空状態にした後、ア
ルゴンガス雰囲気中でアーク放電し、加熱溶解させた。Embodiment FIG. 1 is a diagram showing the relationship between the number of charge/discharge cycles and discharge capacity according to an embodiment of the present invention. Commercially available Mitshu Metal Mu (mixture of rare earth elements, e.g. Ce45wt%, L
IL30wt%, Nb5wt% other rare earth elements about 20w
t%) and each sample of Ni, Mul, Mn, Co
, , Mn0.4. The samples were weighed and mixed to a composition ratio of 0.5 mmo, s l". These samples were placed in an arc melting furnace and evacuated to 10 to 10 Torr, and then arc discharged in an argon gas atmosphere. Dissolved by heating.
試料の均質化を図るために、数回反転させてアーク溶解
を行い水素吸蔵合金を得た。さらに、この合金の均質性
を良好にするために、アルゴンガス雰囲気中にて１００
０℃で８時間熱処理を行い、次にこの合金を粗粉砕後、
ボールミルで３８μｌ以下の粉末とし、負極に用いる合
金粉末を得た。この合金粉末をポリビニルアルコールの
５ｗｔ％水溶液でペースト状にし、発泡ニッケル多孔体
に充填して乾燥した。次に、この電極を比重１．３０の
ＫＯＨ水溶液中に、３０″Ｃ１４５℃、６ｏ℃、５０℃
、８０℃、１ｏＯ’Ｃの各温度で１２時間浸漬した後、
水洗、乾燥、加圧して負極である水素吸蔵電極を得た。In order to homogenize the sample, it was inverted several times and arc melted to obtain a hydrogen storage alloy. Furthermore, in order to improve the homogeneity of this alloy, 100% was added in an argon gas atmosphere.
Heat treatment was performed at 0°C for 8 hours, and then the alloy was coarsely pulverized.
This was milled into powder of 38 μl or less using a ball mill to obtain alloy powder used for the negative electrode. This alloy powder was made into a paste with a 5 wt % aqueous solution of polyvinyl alcohol, filled into a foamed nickel porous body, and dried. Next, this electrode was placed in a KOH aqueous solution with a specific gravity of 1.30 at 30"C, 145℃, 6o℃, and 50℃.
, 80℃, 1oO'C after immersion for 12 hours,
It was washed with water, dried, and pressurized to obtain a hydrogen storage electrode as a negative electrode.
次に、酸化ニッケル正極として、公知の方法で得られた
発泡式ニッケル極（理論充填電気量１０５０〜１１００
１１Ａｈ ）を用い、セパレータにはポリアミドの不織
布、電解液に水酸化リチウムｆ４０’ｉ／１溶解した比
重１．３０ＬｖＫＯＨ水溶液を使用し、前記負極と組み
合わせて公称容量１０００１１Ａｈの拳３サイズ（ムム
サイズ）の密閉形ニッケルー水素蓄電池を構成した。実
施例で用いた電池における負極のアルカリ処理温度を第
１表に示す。Next, as a nickel oxide positive electrode, a foamed nickel electrode obtained by a known method (theoretical charge amount of electricity 1050 to 1100) was used.
11Ah), a polyamide non-woven fabric was used as the separator, a KOH aqueous solution with a specific gravity of 1.30Lv in which lithium hydroxide f40'i/1 was dissolved in the electrolyte was used, and in combination with the negative electrode, a fist 3 size (mumu size) with a nominal capacity of 100011Ah was used. A sealed nickel-metal hydride storage battery was constructed. Table 1 shows the alkali treatment temperature of the negative electrode in the batteries used in the examples.
（以下余白）
第１表
これらの電池を２０″Ｃの一定温度下で１サイクル目の
充電をＱ、Ｉ Ｃｍムで１６時間、ゴサイクル目以後は
ｏ、ｓｃｍム で４．６時間行った。放電は、２サイク
ル目までを０．２ ＯＮムで、３サイクル目以後は０．
５０ｒａムとじ、終止電圧は１．ＯＶとした。Table 1 These batteries were charged at a constant temperature of 20''C for 16 hours using a Q, I Cm system, and for 4.6 hours after the first cycle using an O, SCM system. The discharge is 0.2 ON until the second cycle, and 0.2 ON after the third cycle.
50 ram binding, final voltage is 1. It was set as OV.
第１図から明らかなように、従来例のアルカリ水溶液中
に浸漬していない電極を用いた電池Ｇは、３ｏサイクル
程度で放電容量が低下した。３０’Ｃのアルカリ水溶液
中に浸漬した負極を用いて構成した電池ムは、従来例よ
りわずかに向上したが、５０サイクル程度の充放電サイ
クルの繰り返しにより、放電容量は低下した。しかしな
がら、４５”Ｑ、５０”Ｃ，ｅｓｏ’（：：、８０℃、
１００℃ノアルカリ水溶液中に浸漬した負極を用いて構
成した電池Ｂ−Ｆ、とくにＣ，Ｄ、に、Ｆは、２００サ
イクル程度の充放電サイクルを繰シ返しても、放電容量
は低下しない。次に、このＣ，Ｄ、ＩＥ、Ｆの１５０サ
イクル目の過充電時の電池内圧を測定した結果を第２表
に示す。As is clear from FIG. 1, in the conventional battery G using electrodes not immersed in an alkaline aqueous solution, the discharge capacity decreased after about 3 cycles. A battery constructed using a negative electrode immersed in an alkaline aqueous solution at 30'C had a slight improvement over the conventional example, but the discharge capacity decreased after about 50 charge/discharge cycles. However, 45"Q, 50"C, eso'(::, 80℃,
The discharge capacity of batteries B-F, especially C, D, and F, constructed using a negative electrode immersed in a 100° C. alkaline aqueous solution does not decrease even after about 200 charge/discharge cycles. Next, Table 2 shows the results of measuring the battery internal pressures during the 150th cycle of overcharging for C, D, IE, and F.
第２表
第２表から明らかなように、１００″Ｃのアルカリ水溶
液中に浸漬した負極を用いて構成した電池Ｆは、電池内
圧が９．５ ｋｃｌ／Ｃ−と比較的高く、安全弁が作動
する危険性がある。したがって、アルカリ水溶液の温度
は、５０〜８０℃が適切である。Table 2 As is clear from Table 2, battery F, which was constructed using a negative electrode immersed in an alkaline aqueous solution at 100"C, had a relatively high battery internal pressure of 9.5 kcl/C-, and the safety valve was activated. Therefore, the temperature of the alkaline aqueous solution is preferably 50 to 80°C.
第２図に、５０′Ｃのアルカリ水溶液を用いた場合の浸
漬時間と充放電サイクル数との関係を示した。第２図か
ら明らかなように、２００サイクル以上のサイクル寿命
特性を持つ電池を得るためには、０．２〜２４時間アル
カリ水溶液中に浸漬すれば良い。０．２時間以下の浸漬
時間では、放電容量は２００サイクル以下で低下する。FIG. 2 shows the relationship between the immersion time and the number of charge/discharge cycles when using an aqueous alkaline solution at 50'C. As is clear from FIG. 2, in order to obtain a battery with cycle life characteristics of 200 cycles or more, it is sufficient to immerse the battery in an alkaline aqueous solution for 0.2 to 24 hours. For immersion times of 0.2 hours or less, the discharge capacity decreases after 200 cycles or less.
また、４００サイクル以上の高信頼性の電池は、１時間
から１２時間アルカリ水溶液中に浸漬することによシ得
ることができる。したがって、アルカリ水溶液中の浸漬
時間は１時間〜１２時間が適切である。Furthermore, a highly reliable battery that can last for 400 cycles or more can be obtained by immersing the battery in an alkaline aqueous solution for 1 to 12 hours. Therefore, the appropriate immersion time in the alkaline aqueous solution is 1 hour to 12 hours.
なお、本実施例ではアルカリ水溶液に比重１．３０ Ｋ
ＯＨ水溶液を用いたが、比重１．１０以上の［０１水溶
液あるいはＨａＯＨ水溶液でも同様の効果が得られる。In this example, the alkaline aqueous solution has a specific gravity of 1.30 K.
Although an OH aqueous solution was used, the same effect can be obtained with an [01 aqueous solution or a HaOH aqueous solution with a specific gravity of 1.10 or more.
発明の効果
以上のように、本発明によれば、水素吸蔵電極をアルカ
リ水溶液中に浸漬する工程において、その溶液の温度が
４５℃〜１０ｏ″Ｃであり、浸漬時間を０．２〜２４時
間とした工程を有する水素吸蔵電極の製造方法とするこ
とにより、電池内圧が充放電サイクル数の繰り返しによ
って上昇しない、すなわち充放電サイクル寿命の優れた
電池を提供できるという効果が得られる。Effects of the Invention As described above, according to the present invention, in the step of immersing the hydrogen storage electrode in an alkaline aqueous solution, the temperature of the solution is 45°C to 10°C, and the immersion time is 0.2 to 24 hours. By using the method for producing a hydrogen storage electrode having the steps described above, it is possible to provide a battery in which the internal pressure of the battery does not increase due to repeated charge/discharge cycles, that is, a battery with an excellent charge/discharge cycle life can be provided.
第１図は本発明の一実施例による放電容量と充放電サイ
クル数との関係を示す図、第２図は充放電サイクル数と
極板の浸漬時間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名第１
図
充放電サイグＡ／枚FIG. 1 is a diagram showing the relationship between the discharge capacity and the number of charging/discharging cycles according to an embodiment of the present invention, and FIG. 2 is a diagram showing the relationship between the number of charging/discharging cycles and the immersion time of the electrode plate. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Charging and discharging Cyg A/sheet
Claims (3)
を結着剤と共に、金属多孔体に充填するか、あるいは芯
金の両面に塗着した後、アルカリ水溶液中に浸漬する工
程を有し、前記アルカリ水溶液中への浸漬工程における
アルカリ水溶液は、比重１．１０以上、液温４５〜１０
０℃であり、浸漬時間が０．２〜２４時間であることを
特徴とする水素吸蔵電極の製造方法。(1) It has a process of filling a porous metal body with a hydrogen storage alloy powder that reversibly stores and releases hydrogen, or applying it to both sides of a core metal, and then immersing it in an alkaline aqueous solution. The alkaline aqueous solution in the immersion step in the alkaline aqueous solution has a specific gravity of 1.10 or more and a liquid temperature of 45 to 10.
A method for manufacturing a hydrogen storage electrode, characterized in that the temperature is 0°C and the immersion time is 0.2 to 24 hours.
を特徴とする特許請求の範囲第１項記載の水素吸蔵電極
の製造方法。(2) The method for manufacturing a hydrogen storage electrode according to claim 1, wherein the temperature of the alkaline aqueous solution is 50 to 80°C.
ることを特徴とする特許請求の範囲第１項記載の水素吸
蔵電極の製造方法。(3) The method for manufacturing a hydrogen storage electrode according to claim 1, wherein the immersion time in the alkaline aqueous solution is 1 to 12 hours.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61291832A JPH0756801B2 (en) | 1986-12-08 | 1986-12-08 | Method for manufacturing hydrogen storage electrode |
| DE8787118066T DE3776300D1 (en) | 1986-12-08 | 1987-12-07 | GAS-TIGHT ACCUMULATOR AND METHOD FOR PRODUCING ITS ELECTRODE. |
| EP87118066A EP0271043B1 (en) | 1986-12-08 | 1987-12-07 | Sealed storage battery and method for making its electrode |
| US07/132,647 US4837119A (en) | 1986-12-08 | 1987-12-08 | Sealed storage battery and method for making its electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61291832A JPH0756801B2 (en) | 1986-12-08 | 1986-12-08 | Method for manufacturing hydrogen storage electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63146354A true JPS63146354A (en) | 1988-06-18 |
| JPH0756801B2 JPH0756801B2 (en) | 1995-06-14 |
Family
ID=17773995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61291832A Expired - Lifetime JPH0756801B2 (en) | 1986-12-08 | 1986-12-08 | Method for manufacturing hydrogen storage electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0756801B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61176063A (en) * | 1985-01-29 | 1986-08-07 | Matsushita Electric Ind Co Ltd | Manufacture of alkaline battery |
| JPS61233967A (en) * | 1985-04-10 | 1986-10-18 | Matsushita Electric Ind Co Ltd | Manufacture of sealed nickel-hydrogen storage battery |
-
1986
- 1986-12-08 JP JP61291832A patent/JPH0756801B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61176063A (en) * | 1985-01-29 | 1986-08-07 | Matsushita Electric Ind Co Ltd | Manufacture of alkaline battery |
| JPS61233967A (en) * | 1985-04-10 | 1986-10-18 | Matsushita Electric Ind Co Ltd | Manufacture of sealed nickel-hydrogen storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0756801B2 (en) | 1995-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |