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:
Jun. 04, 2024
Filed:
Dec. 28, 2021
Ngk Insulators, Ltd., Nagoya, JP;
NGK INSULATORS, LTD., Nagoya, JP;
Abstract
Provided is an alkaline secondary battery including: a stacked-cell battery in which multiple single cell elements having a configuration of an alkaline secondary battery are stacked; and a box-shaped case made of resin in which the stacked-cell battery is housed vertically. The box-shaped case has a bottom, a pair of long-side walls parallel to the stacked-cell battery, a pair of short-side walls perpendicular to the stacked-cell battery, and a lid part. The lid part has a vulnerable portion having a smaller thickness than other portions of the lid part, the thickness of the vulnerable portion is 0.1 to 1.0 mm, and a proportion of an area of the vulnerable portion with respect to a total area of the lid part in a plan view is 10 to 40%.