Apparatus and method for removing residual electrolyte from a secondary battery
An apparatus configured to remove a residual electrolyte from a beading part of a case of a cylindrical secondary battery, the case being configured to prevent or reduce separation of an electrode assembly. The apparatus includes an electrolyte absorption member providing part configured to provide an electrolyte absorption member to the case, a case moving part for coupling to the electrode assembly, wherein the case moving part is configured to move the case after the case has received an injection of an electrolyte, and an absorption member moving part configured to move an area of the electrolyte absorption member onto the beading part of the case to absorb at least some of the residual electrolyte from the beading part.
1 . An apparatus configured to remove a residual electrolyte from a beading part of a case of a cylindrical secondary battery, wherein the case is configured to prevent separation of an electrode assembly, the apparatus comprising:
an electrolyte absorption member providing part configured to provide an electrolyte absorption member to the case;
a case moving part configured to move the case after the case has received an injection of an electrolyte; and
an absorption member moving part configured to move an area of the electrolyte absorption member onto the beading part of the case to absorb at least some of the residual electrolyte from the beading part,
wherein the case moving part is configured to move the case in a first direction, and
wherein the absorption member moving part is configured to move the electrolyte absorption member in a second direction that is orthogonal to the first direction.
2 . The apparatus as claimed in claim 1 , wherein the electrolyte absorption member comprises a nonwoven fabric.
3 . The apparatus as claimed in claim 1 , further comprising an unwinding roll and a winding roll, wherein the electrolyte absorption member providing part is configured to unwind the electrolyte absorption member from the unwinding roll and wind the electrolyte absorption member around the winding roll.
4 . The apparatus as claimed in claim 1 , wherein the electrolyte absorption member comprises a flat plate sheet or uneven sheet for absorbing the electrolyte.
5 . The apparatus as claimed in claim 1 , wherein the case moving part comprises a case rotation part configured to rotate the case.
6 . The apparatus as claimed in claim 1 , wherein
the absorption member moving part comprises a jig configured to move the electrolyte absorption member in the second direction.
7 . The apparatus as claimed in claim 6 , wherein the jig is configured to be rotatable.
8 . The apparatus as claimed in claim 6 , wherein a bottom surface of the jig is flat.
9 . The apparatus as claimed in claim 6 , wherein a lower end of the jig has a protruding blade shape.
10 . The apparatus as claimed in claim 9 , wherein the jig is configured to be rotatable.
11 . An apparatus configured to remove a residual electrolyte from a beading part of a case of a cylindrical secondary battery, wherein the case is configured to prevent separation of an electrode assembly, the apparatus comprising:
a roll configured to provide an electrolyte absorption member to the case;
a case moving part including a conveyor or a robot, the case moving part being configured to move the case after the case has received an injection of an electrolyte; and
a jig configured to move an area of the electrolyte absorption member onto the beading part of the case to absorb at least some of the residual electrolyte from the beading part,
wherein the case moving part is configured to move the case in a first direction, and
wherein the jig is configured to move the electrolyte absorption member in a second direction that is orthogonal to the first direction.