SECONDARY BATTERY, PACK AND ELECTRONIC APPARATUS

Abstract

A secondary battery, a pack, and an electronic apparatus are provided. The secondary battery includes an electrode assembly formed by sequentially stacking and winding a first electrode sheet, a first separator, a second electrode sheet, and a second separator and an insulating film configured to fix a tail end of the electrode assembly. A protruding end of a tail end of the first separator and a tail end of the second separator constitutes the tail end of the electrode assembly. A tail end of the second electrode sheet extends beyond a tail end of the first electrode sheet. The tail end of the electrode assembly extends beyond the tail end of the second electrode sheet. A starting end of the insulating film extends beyond the tail end of the electrode assembly.

CPC Classifications