Patent ID: 9698409
Date: 2017-07-04
CPC Classifications: H01M,Y02E

Claim:
1. An injection method for injecting an electrolyte, the injection method comprising: hermetically sealing a solution injection hole of an outer can in which an electrode assembly is stored, by a rotatable pressure reducing pad provided so as to surround a periphery of a solution injection nozzle; inserting the solution injection nozzle into the solution hole after reduction of a pressure in the outer can through the rotatable pressure reducing pad, supplying the electrolyte from the solution injection nozzle into the outer can while making an inside of the outer can into a negative pressure through the rotatable pressure reducing pad; and rotating the outer can and the rotatable pressure reducing pad adhered by suction to a portion of the outer can surrounding the solution injection hole with the solution injection nozzle as a rotation center.