Battery pack

摘要

A battery pack that can quickly transfer heat from a battery cell to a positive temperature coefficient (PTC) to quickly cut off a current when the battery cell is heated to a high temperature. A battery pack includes: a battery cell including a cell tab; a protective circuit module including an internal terminal connected to the cell tab, a PTC connected to the internal terminal, and an interconnection pattern between the internal terminal and the PTC and electrically connecting the internal terminal to the PTC; and a heat transfer member including a surface contacting the interconnection pattern, and opposite sides respectively connected to the internal terminal and the PTC.

主权项

1. A battery pack comprising:
a battery cell comprising a cell tab; a protective circuit module comprising a circuit board, a terminal on the circuit board and connected to the cell tab, a positive temperature coefficient member on the circuit board and connected to the terminal, and an interconnection pattern on the circuit board between the terminal and the positive temperature coefficient member and electrically connecting the terminal to the positive temperature coefficient member; and an electrically insulative heat transfer member contacting and covering a surface of the interconnection pattern, and comprising opposite ends respectively connected to the terminal and the positive temperature coefficient member, wherein the heat transfer member comprises a stacked structure of thermally conductive acrylic tape and solder cream.