Patent ID: 9543621
Date: 2017-01-10
CPC Classifications: H01M,Y02E,Y02P

Claim:
1. An electrode assembly, comprising: a structure including a first electrode plate and a second electrode plate that are wound together, and a separator between the first electrode plate and the second electrode plate; a first electrode tab that is electrically connected to the first electrode plate; and a second electrode tab that is electrically connected to the second electrode plate, wherein: the structure includes a pair of grooves at opposite sides of the structure, the grooves being formed by compression of the structure at the opposite sides in a direction perpendicular to a winding surface, the structure including a first part and a second part that are oppositely located with respect to a reference line connecting the pair of grooves, and the second part is shifted in a first direction such that the second part is partially misaligned with the first part.