Electrolyte solution filling method and battery structure of...

Details Electrolyte solution filling method and battery structure of... Electrolyte solution filling method and battery structure of...

H - Electricity

01

M

H01M 10/42 (2006.01) H01M 2/36 (2006.01) H01M 10/04 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2285764

Provided are a method for filling an electrolyte solution and a battery structure of a lithium secondary battery comprising an internal electrode body formed by winding a positive electrode, and a negative electrode, with sandwiching a separator therebetween around the outer periphery of a core, and an electrolyte solution to impregnate said internal electrode body; said method being excellent in the productivity, and battery performance as well, and being characterized by an easy filling of an electrode solution, with minimization of excessive electrode solution in the battery, by virtue of the provision of an electrolyte solution injection opening in a specific position, through which the electrolyte solution is injected and extracting efficiently by using a nozzle for injection and/or extraction of electrolyte solution.

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