POSITIVE ELECTRODE FOR ALKALINE STORAGE BATTERY, PRODUCTION METHOD FOR SAME, AND ALKALINE STORAGE BATTERY
An object of the present invention is to provide an alkaline storage battery positive electrode and a method of fabricating the same. In the alkaline storage battery positive electrode, the surface of positive electrode active material particles is uniformly coated with a conductive agent and thereb...
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| creator | HIGAKI, KENJIN NAKAYAMA, KOSUKE NAGASHIMA, IKUO |
| description | An object of the present invention is to provide an alkaline storage battery positive electrode and a method of fabricating the same. In the alkaline storage battery positive electrode, the surface of positive electrode active material particles is uniformly coated with a conductive agent and thereby a strong conductive network is formed. Accordingly, the alkaline storage battery positive electrode is capable of suppressing an increase in internal battery resistance. The method of fabricating the alkaline storage battery positive electrode includes the steps of: (A) fixing active material particles to a current collector, the active material particles containing, as a main component, nickel hydroxide whose surface is coated with a conductive agent, the conductive agent containing, as a main component, at least one kind of cobalt compound selected from the group consisting of cobalt hydroxide, tricobalt tetroxide, and cobalt oxyhydroxide; and (B) reducing the cobalt atom in the cobalt compound such that the cobalt atom has an oxidation number of less than +2, by applying a reduction current in an electrolyte solution to the current collector to which the active material particles are fixed, after the step (A). |
| format | Patent |
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In the alkaline storage battery positive electrode, the surface of positive electrode active material particles is uniformly coated with a conductive agent and thereby a strong conductive network is formed. Accordingly, the alkaline storage battery positive electrode is capable of suppressing an increase in internal battery resistance. The method of fabricating the alkaline storage battery positive electrode includes the steps of: (A) fixing active material particles to a current collector, the active material particles containing, as a main component, nickel hydroxide whose surface is coated with a conductive agent, the conductive agent containing, as a main component, at least one kind of cobalt compound selected from the group consisting of cobalt hydroxide, tricobalt tetroxide, and cobalt oxyhydroxide; and (B) reducing the cobalt atom in the cobalt compound such that the cobalt atom has an oxidation number of less than +2, by applying a reduction current in an electrolyte solution to the current collector to which the active material particles are fixed, after the step (A).</description><language>eng ; fre ; ger</language><subject>BASIC ELECTRIC ELEMENTS ; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ; ELECTRICITY ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY ; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</subject><creationdate>2013</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20131127&DB=EPODOC&CC=EP&NR=2634844A4$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20131127&DB=EPODOC&CC=EP&NR=2634844A4$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HIGAKI, KENJIN</creatorcontrib><creatorcontrib>NAKAYAMA, KOSUKE</creatorcontrib><creatorcontrib>NAGASHIMA, IKUO</creatorcontrib><title>POSITIVE ELECTRODE FOR ALKALINE STORAGE BATTERY, PRODUCTION METHOD FOR SAME, AND ALKALINE STORAGE BATTERY</title><description>An object of the present invention is to provide an alkaline storage battery positive electrode and a method of fabricating the same. In the alkaline storage battery positive electrode, the surface of positive electrode active material particles is uniformly coated with a conductive agent and thereby a strong conductive network is formed. Accordingly, the alkaline storage battery positive electrode is capable of suppressing an increase in internal battery resistance. 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In the alkaline storage battery positive electrode, the surface of positive electrode active material particles is uniformly coated with a conductive agent and thereby a strong conductive network is formed. Accordingly, the alkaline storage battery positive electrode is capable of suppressing an increase in internal battery resistance. The method of fabricating the alkaline storage battery positive electrode includes the steps of: (A) fixing active material particles to a current collector, the active material particles containing, as a main component, nickel hydroxide whose surface is coated with a conductive agent, the conductive agent containing, as a main component, at least one kind of cobalt compound selected from the group consisting of cobalt hydroxide, tricobalt tetroxide, and cobalt oxyhydroxide; and (B) reducing the cobalt atom in the cobalt compound such that the cobalt atom has an oxidation number of less than +2, by applying a reduction current in an electrolyte solution to the current collector to which the active material particles are fixed, after the step (A).</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE |
| title | POSITIVE ELECTRODE FOR ALKALINE STORAGE BATTERY, PRODUCTION METHOD FOR SAME, AND ALKALINE STORAGE BATTERY |
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