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:
Oct. 25, 2011
Filed:
Apr. 05, 2005
Masami Suzuki, Kanagawa, JP;
Muneto Hayami, Kanagawa, JP;
Koji Kano, Gunma, JP;
Kazuo Udagawa, Tokyo, JP;
Masami Suzuki, Kanagawa, JP;
Muneto Hayami, Kanagawa, JP;
Koji Kano, Gunma, JP;
Kazuo Udagawa, Tokyo, JP;
Toshiba Battery Co., Ltd., Tokyo, JP;
Abstract
A liquid action substance battery having its external terminal welded after assembling the battery in which safety of the battery is enhanced by protecting an explosion-proof valve against being torn apart in the subsequent welding work of the external terminal even if the position of a negative pole action substance being press-bonded to the inner surface of the battery can is shifted and that substance is extruded to the bottom face of the battery can. The liquid action substance battery employing an alkaline metal such as lithium, sodium or potassium or its alloy as the negative pole action substance, and an oxyhalide such as thionyl chloride, sulfuryl chloride or phosphoryl chloride in a liquid state at normal temperature as the positive pole action substance, and storing and sealing the negative pole action substance and the positive pole action substance in the bottomed battery, wherein a metal plate is welded to the inner surface at the bottom part of the battery can to form a partial space between them so that welding heat is not transmitted directly to the negative pole action substance when the external terminal is welded.