Rechargeable Battery with Shutdown Layer

摘要

In at least one embodiment, a battery is provided comprising an anode and cathode, a separator between the anode and cathode, and a shutdown layer between the separator and the anode or cathode. The shutdown layer may include low melting point material and a conductive material within the low melting point material forming a conductive network within the shutdown layer. At a melting point temperature of the low melting point material, the conductive network is reduced such that at least a portion of the shutdown layer is substantially electrically non-conductive. The shutdown layer may be a free-standing layer or may be coated one or both of the electrodes.

主权项

1. A battery comprising:
an anode and cathode; a separator between the anode and cathode; and a shutdown layer between the separator and the anode or cathode and including a wax material and a conductive material within the wax material and forming a conductive network within the shutdown layer, at a wax material melting point temperature, the conductive network is reduced such that at least a portion of the shutdown layer is substantially electrically non-conductive.