公开(公告)号：US20240128616A1

公开(公告)日：2024-04-18

申请号：US18478199

申请日：2023-09-29

申请人： TECHTRONIC CORDLESS GP

发明人： Yi ZHANG ,  Yun Yan JIA ,  Si Xing ZHOU ,  Jia Wei CHEN

IPC分类号： H01M50/574 ,  H01M10/48 ,  H01M50/209 ,  H01M50/211 ,  H01M50/267 ,  H01M50/284 ,  H01M50/291 ,  H01M50/509

CPC分类号： H01M50/574 ,  H01M10/482 ,  H01M10/486 ,  H01M50/209 ,  H01M50/211 ,  H01M50/267 ,  H01M50/284 ,  H01M50/291 ,  H01M50/509

摘要： A battery pack, comprising a first cell and a second cell connected in series, the first cell having a current cut-off device and having a first failure voltage, the current cut-off device being configured to be able to break a circuit in response to a voltage value of the first cell reaching or exceeding the first failure voltage, and the second cell having no current cut-off device. The battery pack may use a soft pack battery as the second cell, having advantages such as high energy density, low impedance, high discharge power, a low rate of temperature rise during high-rate discharge, and flexibility in dimensions.