Alkaline storage battery

[Problem] To suppress increases in the resistance of nickel positive electrodes and assure sufficient battery capacity even after repeated pulse charging and discharging cycles with a large current. [Solution] This alkaline storage battery (10) contains aluminum (Al) in a hydrogen storage alloy nega...

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Bibliographic Details
Main Authors OCHI MAKOTO, TOKUDA MITSUNORI, KITAOKA KAZUHIRO, TAKEE MASAO
Format Patent
LanguageEnglish
Published 08.12.2015
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Summary:[Problem] To suppress increases in the resistance of nickel positive electrodes and assure sufficient battery capacity even after repeated pulse charging and discharging cycles with a large current. [Solution] This alkaline storage battery (10) contains aluminum (Al) in a hydrogen storage alloy negative electrode (12) and also includes Al in a nickel positive electrode (11). In a state where a prescribed charging and discharging cycle has completed, the Al content in the nickel positive electrode (11) is 0.25% by mass or greater of that in the positive electrode active material, and in powder x-ray diffraction of the positive electrode active material using Cu-Kα, the half-width of the (101) plane peak for Ni(OH)2 is controlled so as to be 0.5 (°/2 ) or greater.
Bibliography:Application Number: US201113989958