A method of manufacturing a battery cell includes forming an electrode and coating the electrode with an n-mer solution. The n-mer coated electrode is treated by heat, ultraviolet, or cross-linking agents to polymerize the n-mer and form an ion exchange ma...

A rechargeable battery cell includes a composite separator having a substrate and an ion exchange material supported by the substrate. First and second electrode materials are separated from each other by the separator and an electrolyte contacts the first...