| abstract |
(57) ABSTRACT Lithium intercalation compound electrodes 43, 47, and an electrolyte of flexible polymer 45 sandwiched between them and containing a lithium salt dissolved in a polymer compatible solvent. Rechargeable battery. Preferred elements include an anode of a tertiary lithium manganese oxide compound, a cathode of carbon, and 8-25% by weight containing a solution of about 20-70% lithium salt in a medium boiling solvent such as ethylene carbonate, propylene carbonate, dimethyl carbonate. Including a poly (vinylidene fluoride) copolymer with a hexafluoropropylene electrolyte layer. The electrolyte layer 45 can be used in the form of a separate separator film or as a coated element in a multi-layer battery structure, providing electrical ionic conductivity up to about 10 −3 S / cm. |