Spirally wound electrode assemblies and cells containing such.

摘要

A spirally wound electrode assembly for use in electrochemical cells has an outer anode layer with a tab located thereon, and an electrically insulating and ionically impermeable overwrap film disposed about the assembly, one end of which is inserted into the assembly between the end of the cathode layer and one of the anode layers wherein, upon forced discharge of the cell, the portion of the anode with the tab is disconnected in a fuse-like manner from the remainder of the anode, breaking the circuit.