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. 20, 2016
Filed:
Mar. 25, 2014
Primearth Ev Energy Co., Ltd., Kosai-shi, Shizuoka, JP;
Shinichiro Ito, Kosai, JP;
Yuki Sakito, Toyohashi, JP;
Hiroyuki Sakamoto, Toyohashi, JP;
Katsumi Kashiwagi, Nara, JP;
PRIMEARTH EV ENERGY CO., LTD., Kosai-Shi, JP;
Abstract
A nickel-hydrogen storage battery includes a positive electrode, a negative electrode using an ABbased hydrogen-absorbing alloy, and a separator arranged between the positive and negative electrodes. The ABbased hydrogen-absorbing alloy includes an A element, which is a constituent element of a misch metal, and a B element, which includes nickel and cobalt. The ratio of the amount of substance of the B element to that of the A element is 5.2 or more and 5.4 or less. The ratio of the amount of substance of cobalt to that of the A element is 0.15 or more and 0.4 or less. The liquid retention volume (V) and the true volume (V) of the separator, the theoretical capacity of the negative electrode (C), and the theoretical capacity of the positive electrode (C) satisfy the following expression.2.0≦1/2×1/2≦3.1