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 a separator sandwiched therebetween around the outer periphery of a
core, and an electrolyte solution to impregnate said internal electrode
body; said method being excellent in 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.
