JPH0479473B2 - - Google Patents
Info
- Publication number
- JPH0479473B2 JPH0479473B2 JP59171819A JP17181984A JPH0479473B2 JP H0479473 B2 JPH0479473 B2 JP H0479473B2 JP 59171819 A JP59171819 A JP 59171819A JP 17181984 A JP17181984 A JP 17181984A JP H0479473 B2 JPH0479473 B2 JP H0479473B2
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- electrode
- hydride
- hydrogen
- 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.)
- Expired - Lifetime
Links
- 239000000956 alloy Substances 0.000 claims description 36
- 229910045601 alloy Inorganic materials 0.000 claims description 35
- 239000001257 hydrogen Substances 0.000 claims description 31
- 229910052739 hydrogen Inorganic materials 0.000 claims description 31
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 26
- 150000004678 hydrides Chemical class 0.000 claims description 24
- 238000003860 storage Methods 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 239000002491 polymer binding agent Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 238000010494 dissociation reaction Methods 0.000 claims description 3
- 230000005593 dissociations Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229920005596 polymer binder Polymers 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 239000012298 atmosphere Substances 0.000 description 7
- 239000011575 calcium Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229910002058 ternary alloy Inorganic materials 0.000 description 1
- 229920006186 water-soluble synthetic resin Polymers 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
-
- 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
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、水素を可逆的に吸蔵・放出する合金
を利用した電池の負極、いわゆる水素吸蔵電極の
製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing a battery negative electrode, a so-called hydrogen storage electrode, using an alloy that reversibly stores and releases hydrogen.
従来例の構成とその問題点
従来、水素吸蔵電極は、導電性の電極支持体に
水素吸蔵合金を有機高分子結着剤で結合させて構
成されていた。その製造方法は、まず、活物質と
なる水素吸蔵合金を合成し、次にその合金を機械
的に細かく粉砕する。あるいは、合金を粒状に細
かくした後、さらに耐圧容器内で水素の吸蔵、放
出を数回繰り返して細分化する。この場合、合金
は活用化されるとともに水素化される。これらの
方法で得た水素吸蔵合金粉末に、たとえば、ポリ
エチレン、フツ素樹脂等の有機高分子結着剤を混
合し、その混合物を導電性の電極支持体に圧縮成
形で保持させた後、不活性ガス雰囲気中で、結着
剤の融点付近の温度で熱処理を施し、電極を得て
いた。Structure of Conventional Examples and Problems Thereto Conventionally, hydrogen storage electrodes have been constructed by bonding a hydrogen storage alloy to a conductive electrode support using an organic polymer binder. The manufacturing method involves first synthesizing a hydrogen storage alloy as an active material, and then mechanically crushing the alloy into fine particles. Alternatively, after pulverizing the alloy into granules, hydrogen is absorbed and released several times in a pressure-resistant container, and the alloy is further finely divided. In this case, the alloy is conjugated and hydrogenated. The hydrogen storage alloy powder obtained by these methods is mixed with an organic polymer binder such as polyethylene or fluororesin, and the mixture is held on a conductive electrode support by compression molding. Electrodes were obtained by heat treatment in an active gas atmosphere at a temperature near the melting point of the binder.
しかし、前者の機械的粉砕で得た水素吸蔵合金
粉末を用いた電極は、合金が活性化されていない
ために、電気化学的水素吸蔵（充電）、水素放出
（放電）の容量が少なく、さらに電極の充放電を
繰り返すと、電極を構成する水素吸蔵合金粒子の
活性化が起こり、電極性能は徐々に向上する。 However, electrodes using hydrogen-absorbing alloy powder obtained by mechanical grinding have low electrochemical hydrogen storage (charging) and hydrogen release (discharging) capacity because the alloy is not activated. When the electrode is repeatedly charged and discharged, the hydrogen storage alloy particles that make up the electrode are activated, and the electrode performance gradually improves.
従つて初期の放電容量が小さい欠点を持つてい
る。 Therefore, it has the disadvantage of a small initial discharge capacity.
一方、後者の方法で得た水素吸蔵合金粉末を用
いた電極は、合金の活性化と水素化が十分行なわ
れているので、初期には高い容量が得られるが、
その反面、水素化合金粉末は水素を含むために非
常に活性で、空気中では酸化される程度も大き
く、また急激に多くの水素量を吸蔵したり、放出
したりするために、電極が一度に膨張する見掛上
の割合が大きく、わん曲、亀裂の発生原因となる
などの問題点があつた。 On the other hand, electrodes using hydrogen-absorbing alloy powder obtained by the latter method can obtain high initial capacity because the alloy is sufficiently activated and hydrogenated.
On the other hand, hydrogenated alloy powder is very active because it contains hydrogen, and is oxidized to a large extent in the air, and because it rapidly absorbs and releases large amounts of hydrogen, the electrode The apparent rate of expansion was large, causing problems such as bending and cracking.
発明の目的
本発明は、上記のような従来の欠点を除き、放
電初期の容量も大きく、しかも充放電サイクル寿
命の長い水素吸蔵電極を得る製造方法を提供する
ものである。OBJECTS OF THE INVENTION The present invention provides a manufacturing method for obtaining a hydrogen storage electrode which has a large initial discharge capacity and a long charge/discharge cycle life, while eliminating the above-mentioned conventional drawbacks.
発明の構成
本発明は、水素吸蔵能力を有する合金粉末とこ
の合金の水素化物粉末の混合物に耐アルカリ性の
高分子結着剤を加え、加圧成形により集電体と一
体に結合する水素吸蔵電極の製造方法である。Structure of the Invention The present invention provides a hydrogen storage electrode in which an alkali-resistant polymer binder is added to a mixture of an alloy powder having hydrogen storage capacity and a hydride powder of this alloy, and the mixture is integrally bonded to a current collector by pressure molding. This is a manufacturing method.
実施例の説明
純度99.5％以上のランタン、カルシウム、ニツ
ケル金属より構成される３元系合金を選び、性能
比較を行なつた。Description of Examples A ternary alloy composed of lanthanum, calcium, and nickel metal with a purity of 99.5% or more was selected and the performance was compared.
まず、原子比でランタン（La）0.8、カルシウ
ム（Ca）0.2、ニツケル（Ni）５の配合組成にな
るよう秤量し、アーク溶解炉に入れ、10-3torrま
で真空吸引した後アルゴンガス雰囲気の減圧状態
で溶解させる。均質化を図るために、銅るつぼ内
の溶解合金を数回反転させてLa0.8Ca0.2Ni5合金を
製造した。 First, the mixture was weighed to have an atomic ratio of 0.8 lanthanum (La), 0.2 calcium (Ca), and 5 nickel (Ni), placed in an arc melting furnace, vacuumed to 10 -3 torr, and then placed in an argon gas atmosphere. Dissolve under reduced pressure. The La 0.8 Ca 0.2 Ni 5 alloy was produced by inverting the molten alloy in the copper crucible several times for homogenization.
得られた合金試料をアルゴン雰囲気中のドライ
ボツクス中で粉砕し、節分けして300メツシユ通
過の合金粉末を用意した。 The obtained alloy sample was crushed in a dry box in an argon atmosphere and divided into sections to prepare an alloy powder that could pass through 300 meshes.
一方、溶解した同じ合金試料を粒状に粗粉砕
し、耐圧容器内に入れ、この容器内に圧力を持つ
た水素を供給し、次いで脱水素する操作を数回以
上行ない合金の活性化と水素化を行なう。水素を
吸蔵した状態でアルゴン雰囲気中に取り出し、先
に製造した合金に各10〜90重量％の比率になるよ
うに加え、両者の混合物粉末を準備した。この混
合粉末に高分子結着剤としてフツ素樹脂の水分散
液を固形分で５重量％程混和してペースト状とな
し、これをニツケル発泡状多孔体に加圧充填し、
約200Kg／cm2の圧力で加圧し水素化物粒子から水
素が放出しない様に乾燥した雰囲気中で20℃の温
度を保持しつつ、水分のみ除去し電極とした。こ
の電極の大きさは40×50mm、厚さ1.5mmであり、
活物質である前記混合粉末の充填量は約６ｇであ
る。 On the other hand, the same melted alloy sample is coarsely ground into granules, placed in a pressure vessel, hydrogen is supplied under pressure into this vessel, and then dehydrogenation is performed several times or more to activate and hydrogenate the alloy. Do this. The hydrogen absorbed state was taken out into an argon atmosphere and added to the previously produced alloy at a ratio of 10 to 90% by weight to prepare a powder mixture of the two. This mixed powder is mixed with an aqueous dispersion of fluororesin as a polymeric binder at a solid content of approximately 5% by weight to form a paste, which is then pressure-filled into a nickel foam porous body.
The hydride particles were pressurized at a pressure of approximately 200 kg/cm 2 and kept at a temperature of 20°C in a dry atmosphere to prevent hydrogen from being released from the hydride particles, and only moisture was removed to form an electrode. The size of this electrode is 40 x 50 mm and thickness 1.5 mm.
The amount of the mixed powder, which is the active material, was about 6 g.
第１図は上記の電極を負極とし、公知の酸化ニ
ツケル電極を正極とし組み合わせた蓄電池の単セ
ル構成を示す。図中、１は正極、２は負極、３は
セパレータ、４はアルカリ電解液、５は電槽、６
は蓋、７は正極端子、８は負極端子、９は注液口
である。 FIG. 1 shows a single cell configuration of a storage battery in which the above electrode is used as a negative electrode and a known nickel oxide electrode is used as a positive electrode. In the figure, 1 is a positive electrode, 2 is a negative electrode, 3 is a separator, 4 is an alkaline electrolyte, 5 is a battery container, and 6
is a lid, 7 is a positive terminal, 8 is a negative terminal, and 9 is a liquid inlet.
この電池の負極として前記合金と水素化物の配
合比の異なる試料を用い、第１図の蓄電池の充・
放電をくりかえした。200mAの充・放電時の放
電容量を測定し、初期容量と200サイクル目の容
量を比較した。但し、負極で容量が下がる様に、
負極より高容量の正極を用いた。また、従来電極
として、水素化物を含まない合金粉末のみからな
る電極と水素化物のみからなる電極を用いた。第
２図にその性能の結果を示す。従来型の合金単体
の電極は初期放電容量が小さく、また、100％水
素化物電極では初期容量が非常に大きいが、サイ
クル寿命が短くなる。 Using samples with different blending ratios of the alloy and hydride as negative electrodes of this battery, charging and charging of the storage battery shown in Fig.
The discharge was repeated. The discharge capacity during charging and discharging at 200 mA was measured, and the initial capacity and the capacity at the 200th cycle were compared. However, as the capacity decreases at the negative electrode,
A positive electrode with a higher capacity than the negative electrode was used. Furthermore, as conventional electrodes, an electrode made only of alloy powder containing no hydride and an electrode made only of hydride were used. Figure 2 shows the performance results. Conventional pure alloy electrodes have low initial discharge capacity, and 100% hydride electrodes have very high initial capacity but short cycle life.
以上から水素化物の量が増加するにつれて、初
期の放電容量は著しく向上することがわかる。し
かし、電極の膨張の度合や電解液中での酸化の度
合、わん曲などの度合が大きい事が観察され、少
しずつ容量低下を起こしているものと考えられ
る。これに対して、水素化物と合金との混合物は
両者の利点がうまく調和し、電極の容量、耐久性
も保持し、水素化物の量が10〜60重量％の範囲内
が実用的な電極と云える（0.2Ah／ｇ以上）。 From the above, it can be seen that as the amount of hydride increases, the initial discharge capacity improves significantly. However, it was observed that the degree of expansion of the electrode, the degree of oxidation in the electrolyte, and the degree of curvature were large, and it is thought that the capacity was gradually decreasing. On the other hand, mixtures of hydrides and alloys have the advantages of both in good balance, maintain electrode capacity and durability, and are considered practical electrodes when the amount of hydride is in the range of 10 to 60% by weight. Yes (0.2Ah/g or more).
初期の容量は水素化物層の効果で向上し、高い
容量でもつてサイクル寿命も比較的長い範囲を見
い出すことが出来た。電池を組立てる時、電極の
中に水素化物の型であらかじめ混在させておくこ
とにより、両者の利点の相乗効果により、従来に
は見られなかつた優れた電極を得ることができ
た。 The initial capacity was improved by the effect of the hydride layer, and a range of high capacity and relatively long cycle life was found. By pre-mixing the hydride in the electrode when assembling the battery, the synergistic effect of the advantages of both made it possible to obtain an excellent electrode that had never been seen before.
２また、密閉型電池を構成する場合、充電中にお
いて、前もつて水素化物の型で合金層の中に混在
してあるために、電池内ガス圧力の上昇を抑制す
る。とくに、水素化物として混在しているため、
過充電時に正極から発生する酸素と負極での水素
との反応性がよく、電池内圧の上昇を防止し、し
かも負極の分極が小さくなるので高率放電特性が
向上するという効果もある。2. Furthermore, when forming a sealed battery, during charging, since the hydride is mixed in the alloy layer in the form of a hydride, an increase in gas pressure within the battery is suppressed. In particular, since it is mixed as a hydride,
Oxygen generated from the positive electrode and hydrogen at the negative electrode have good reactivity during overcharging, preventing an increase in battery internal pressure, and also has the effect of improving high-rate discharge characteristics because the polarization of the negative electrode is reduced.
電極の製造に際して水素化物を耐圧密閉容器内
から取り出す必要のために、常温付近で１気圧以
下の水素解離圧力を持つ合金材料を選択する必要
がある。何故ならば、電極製造中に水素化物から
水素が大気中に出てしまう心配があるためであ
る。したがつて、電池に組込む前に水素化物とし
て水素が適量存在していなければならないため、
本実施例にあつては、比較的低温の不活性雰囲気
中で電極を製造した。たとえば、周囲温度10〜15
℃、アルゴンガス雰囲気中などである。また、結
着剤としては、ポリビニルアルコール、カルボキ
シメチルセルロースの様な水溶性の合成樹脂も利
用できる。本実施例では常温で１気圧を示す１例
の合金としてLa0.8Ca0.2Ni5を用いたが、常温で水
素解離圧力が１気圧以下の別の水素吸蔵合金を用
いてもかまわない。 Since it is necessary to take out the hydride from the pressure-tight sealed container when manufacturing the electrode, it is necessary to select an alloy material that has a hydrogen dissociation pressure of 1 atmosphere or less at around room temperature. This is because there is a concern that hydrogen may escape from the hydride into the atmosphere during electrode manufacturing. Therefore, an appropriate amount of hydrogen must be present as a hydride before it is incorporated into a battery.
In this example, the electrode was manufactured in an inert atmosphere at a relatively low temperature. For example, ambient temperature 10-15
℃, in an argon gas atmosphere, etc. Furthermore, water-soluble synthetic resins such as polyvinyl alcohol and carboxymethyl cellulose can also be used as the binder. In this example, La 0.8 Ca 0.2 Ni 5 was used as an example alloy exhibiting a pressure of 1 atm at normal temperature, but another hydrogen storage alloy having a hydrogen dissociation pressure of 1 atm or less at room temperature may be used.
発明の効果
以上のように、本発明によれば初期容量も向上
し、サイクル寿命も優れ、しかも密閉型アルカリ
蓄電池を構成した時、充・放電時の電池内圧の上
昇を抑制するなどの性能の優れた水素吸蔵電極が
えられる。Effects of the Invention As described above, according to the present invention, the initial capacity is improved, the cycle life is excellent, and when a sealed alkaline storage battery is constructed, performance such as suppressing the increase in battery internal pressure during charging and discharging is achieved. An excellent hydrogen storage electrode can be obtained.
第１図は実施例の蓄電池の縦断面図、第２図は
水素吸蔵電極を構成する合金とその水素化物中の
水素化物の比率と初期容量及び200サイクル後の
放電容量との関係を示した図である。
１……正極、２……負極、３……セパレータ、
４……電解液。
Figure 1 is a longitudinal cross-sectional view of the storage battery of the example, and Figure 2 shows the relationship between the alloy constituting the hydrogen storage electrode and the ratio of hydride in the hydride, initial capacity, and discharge capacity after 200 cycles. It is a diagram. 1...Positive electrode, 2...Negative electrode, 3...Separator,
4... Electrolyte.
Claims (1)
る水素吸蔵能を有する合金粉末と、この合金の水
素化物粉末の混合物に、耐アルカリ性の高分子結
着剤を加え、加圧成形して集電体と一体に結合す
る水素吸蔵電極の製造法。 ２ 耐アルカリ性の高分子結着剤を含む合金粉末
とその水素化物粉末の混合物がペースト状混合物
からなる特許請求の範囲第１項記載の水素吸蔵電
局の製造法。 ３ 合金粉末とその水素化物粉末の混合割合にお
いて、水素化物粉末の比率が10〜60重量％である
特許請求の範囲第１項記載の水素吸蔵電極の製造
法。[Claims] 1. An alkali-resistant polymer binder is added to a mixture of an alloy powder having a hydrogen storage capacity with a hydrogen dissociation pressure of 1 atm or less at room temperature and a hydride powder of this alloy, and the mixture is pressurized. A method for manufacturing a hydrogen storage electrode that is molded and integrally bonded to a current collector. 2. The method for manufacturing a hydrogen storage power station according to claim 1, wherein the mixture of an alloy powder containing an alkali-resistant polymeric binder and its hydride powder is a paste-like mixture. 3. The method for manufacturing a hydrogen storage electrode according to claim 1, wherein in the mixing ratio of the alloy powder and its hydride powder, the ratio of the hydride powder is 10 to 60% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59171819A JPS6149375A (en) | 1984-08-17 | 1984-08-17 | Manufacture of hydrogen absorbing electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59171819A JPS6149375A (en) | 1984-08-17 | 1984-08-17 | Manufacture of hydrogen absorbing electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6149375A JPS6149375A (en) | 1986-03-11 |
| JPH0479473B2 true JPH0479473B2 (en) | 1992-12-16 |
Family
ID=15930320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59171819A Granted JPS6149375A (en) | 1984-08-17 | 1984-08-17 | Manufacture of hydrogen absorbing electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6149375A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53103910A (en) * | 1977-02-23 | 1978-09-09 | Matsushita Electric Ind Co Ltd | Production of hydrogen occluded electrode |
| JPS53111439A (en) * | 1977-03-03 | 1978-09-29 | Philips Nv | Rechargeable electrochemical battery enclosed from outer atmosphere and method of manufacturing same |
| JPS5413938A (en) * | 1977-07-04 | 1979-02-01 | Matsushita Electric Ind Co Ltd | Method of making hydrogen occlusion electrode |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734678Y2 (en) * | 1976-09-07 | 1982-07-30 |
-
1984
- 1984-08-17 JP JP59171819A patent/JPS6149375A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53103910A (en) * | 1977-02-23 | 1978-09-09 | Matsushita Electric Ind Co Ltd | Production of hydrogen occluded electrode |
| JPS53111439A (en) * | 1977-03-03 | 1978-09-29 | Philips Nv | Rechargeable electrochemical battery enclosed from outer atmosphere and method of manufacturing same |
| JPS5413938A (en) * | 1977-07-04 | 1979-02-01 | Matsushita Electric Ind Co Ltd | Method of making hydrogen occlusion electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6149375A (en) | 1986-03-11 |
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