Patent ID: 8910671
Filing Date: 2014-12-16
Classification: H01M,Y02E,Y02P

Abstract:
1. A method comprising supplying electrolyte inside a battery case disposed inside a reduced pressure chamber using a supplying apparatus including a measuring unit where a piston moves along a first direction in a measuring space inside a cylinder, the supplying apparatus including: a dispenser that injects electrolyte from above into a battery case; a first pipeline that connects an upper end portion of the measuring space of the measuring unit and the dispenser; and a back pressure valve disposed on the first pipeline, the dispenser including: a discharge nozzle disposed inside the battery case or in a periphery of an upper end of the battery case; and a needle valve that is disposed inside the discharge nozzle and opens and closes the discharge nozzle, and the supplying electrolyte including: injecting, with a control unit driving the piston to apply a back pressure to the back pressure valve, electrolyte from the upper end portion of the measuring space via the back pressure valve of the first pipeline and the needle valve into the battery case inside the reduced pressure chamber; and closing, with stopping the piston, the back pressure valve.