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:
Mar. 22, 2022
Filed:
Jul. 01, 2019
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Toru Kawai, Nagaokakyo, JP;
Masahiro Otsuka, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;
Abstract
A method of manufacturing a secondary battery is provided for manufacturing a secondary battery that includes an electrode winding body formed of a positive electrode and a negative electrode, and having a non-rectangular shape in planar view. In this manufacturing method, a positive electrode precursor and a negative electrode precursor are stacked on each other with a separator interposed therebetween to form an electrode precursor laminate, which is wound to form the electrode winding body. Moreover, the electrode precursor laminate has a comb-teeth shape in planar view, and winding is performed such that a winding axis for winding is substantially parallel to an extending direction of a terminal element of the secondary battery, whereby the electrode winding body is made non-rectangular.