The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 08, 2015
Filed:
Nov. 29, 2011
Mitsunori Tokuda, Moriguchi, JP;
Makoto Ochi, Moriguchi, JP;
Kazuhiro Kitaoka, Moriguchi, JP;
Masao Takee, Moriguchi, JP;
Mitsunori Tokuda, Moriguchi, JP;
Makoto Ochi, Moriguchi, JP;
Kazuhiro Kitaoka, Moriguchi, JP;
Masao Takee, Moriguchi, JP;
SANYO Electric Co., Ltd., Osaka, JP;
Abstract
[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 () contains aluminum (Al) in a hydrogen storage alloy negative electrode () and also includes Al in a nickel positive electrode (). In a state where a prescribed charging and discharging cycle has completed, the Al content in the nickel positive electrode () 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)is controlled so as to be 0.5 (°/2θ) or greater.