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. 05, 1999
Filed:
Sep. 22, 1997
Kenji Nakai, Tokyo, JP;
Manabu Ochida, Tokyo, JP;
Shin-Kobe Electric Machinery Co., Ltd., Tokyo, JP;
Abstract
A non-aqueous liquid electrolyte secondary cell capable of preventing bursting or explosion thereof even when a current breaking device or a relief valve for pressure release fails in operation thereof due to any trouble or failure thereof. The cell includes a wound-up body formed by laminatedly spirally winding up a positive electrode and a negative electrode together while interposing a separator therebetween. The wound-up body thus formed is received in a cell can. The negative electrode is constructed by forming a negative active material layer containing amorphous carbon on each of both surfaces of a negative collector. The positive electrode is constructed by forming a positive active material layer containing LixCoO.sub.2 on each of both surfaces of a positive collector. The negative electrode is electrically connected to the cell can through a negative electrode lead. The positive electrode is electrically connected to the cell lid through a positive electrode lead joined to a connection plate of the cell lid by welding.