Negative electrode plate for nickel-metal hydride storage battery, method for producing the same and nickel-metal hydride storage battery using the same

• Main Authors: NAKAYAMA SORYU, OKAWA TAKASHI, SHIBATA SOICHI
• Format: Patent
• Language: English
• Published: 31.08.2006
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; BASIC ELECTRIC ELEMENTS; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; 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; SPRAYING OR ATOMISING IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING

A negative electrode plate includes a conductive support and a first, a second and a third layer laminated on a surface of the support in this order from the support side. The first layer contains a hydrogen storage alloy powder and a first powder essentially made of a carbonaceous material. The second layer-contains a hydrogen storage alloy powder, the first powder and a second powder having conductivity. The third layer contains the second powder as a main component.