Patent ID: 7560191
Filing Date: 2009-07-14
Classification: H01M,Y02E,Y02P

Abstract:
1. A lithium secondary battery comprising a cathode, an anode, a separator and a non-aqueous electrolyte comprising a lithium salt, wherein the cathode comprises a cation exchange material and/or the anode comprises a cation exchange material and/or the surface of the separator comprises a cation exchange material, wherein the cation exchange material comprises an alumino-silicate particle and/or an alumino-phosphate particle comprising cations selected from the group consisting of lithium, sodium, ammonium and any combination thereof and wherein the mole number of the cations in the cation exchange material is more than 0.1, relative to the total mole number of aluminum and silicon in the alumino-silicate and/or to the total mole number of aluminum and phosphorus in the alumino-phosphate.