Patent ID: 11929481
Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
Field: nan (nan)
Classification: CPC nan | IPC H

Claim 3:
4. The method according to claim 1, wherein:
the edge includes two edges extending in the predetermined direction of the electrode substrate;
the forming includes forming the mixture layer on the electrode substrate between the two edges extending in the predetermined direction and forming the insulating layer between the mixture layer and each of the edges so that the exposed portion where the electrode substrate is exposed includes two exposed portions respectively arranged between the two edges and the insulating layer;
the stretching includes applying tension in the predetermined direction to the electrode substrate in a state in which the exposed portion and the insulating layer are arranged in contact with a roller to stretch the extension portion and the insulating layer in the predetermined direction;
the roller includes a main body and a large-diameter portion arranged at two sides of the main body and having a larger diameter than the main body; and
the stretching includes arranging the large-diameter portion in contact with the exposed portion and the insulating layer.