NICKEL-HYDROGEN BATTERY ANODE AND MANUFACTURE THEREOF
PROBLEM TO BE SOLVED: To obtain a battery anode with its superior prevention effect of battery heating due to adhesive force between a two-dimensional porous substrate and an active material composition, fine powdering of an active substance, and a prevention effect of battery heating due to oxidiza...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To obtain a battery anode with its superior prevention effect of battery heating due to adhesive force between a two-dimensional porous substrate and an active material composition, fine powdering of an active substance, and a prevention effect of battery heating due to oxidization of an active substance surface by containing a bonding agent consisting of a butadiene rubber or the like in the active material composition and a water repellent agent containing a fluorine resin. SOLUTION: A bonding agent is employed by selecting it from the group consisting of an acrylonitryl butadiene rubber, a styrene butadiene rubber, and acryl acid butadiene rubber, chloroprene, acryl emulsion, and their mixture. A quantity of this bonding agent used is preferably 0.2 to 3 wt.% to a hydrogen storage alloy that is an anode active material. As a water repellent agent, a fluorine resin with its low surface tensile stress and about 10 to 20 dyn/cm, an unformed fluorine resin, or a fluorine resin dispersed in a fluoride carbon solution is preferably employed. |
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