公开(公告)号：US20240072309A1

公开(公告)日：2024-02-29

申请号：US18239535

申请日：2023-08-29

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yezheng Zhang ,  Jinxing Yang ,  Liangyu Zhang

IPC: H01M10/42 ,  H01M10/0585 ,  H01M10/48 ,  H01M50/46

CPC classification number: H01M10/4235 ,  H01M10/0585 ,  H01M10/4257 ,  H01M10/482 ,  H01M50/46 ,  H01M2010/4271 ,  H01M2220/20

Abstract: This application discloses a battery cell. An electrochemical cell includes a positive electrode plate, a negative electrode plate, and at least three separators located between the positive electrode plate and the negative electrode plate. A first separator located at the middle among the at least three separators is a conductive layer. A second separator located between the positive electrode plate and the first separator and a third separator located between the negative electrode plate and the first separator are insulation layers. The first separator is connected to a communication chip. When the positive electrode plate or the negative electrode plate pierces the separator, an internal short circuit of the electrochemical cell may be caused. The communication chip may receive, in time, an electrical signal sent by the first separator, and report fault information to a battery management unit, so that safety in use of a battery is improved.