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. 09, 2025
Filed:
Nov. 15, 2021
Prime Planet Energy & Solutions, Inc., Tokyo, JP;
Masafumi Kadoi, Chita, JP;
Takahiro Sakurai, Nagoya, JP;
PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo, JP;
Abstract
The present disclosure provides a method for producing a nonaqueous electrolyte secondary battery that allows a nonaqueous electrolyte solution to permeate, reliably and in a short time, into a wound electrode body. The method for producing a nonaqueous electrolyte secondary battery includes at least a winding step of forming a wound electrode body, a terminal connection step of connecting an electrode terminal to the wound electrode body, and a sealing step of accommodating the wound electrode body inside a battery case, and thereafter sealing the battery case. The production method disclosed herein includes, between the winding step and the terminal connection step, a permeation step of immersing a wound electrode body in a nonaqueous electrolyte solution, and repeatedly pressing and releasing the wound electrode body.