Abstract: The invention provides a non-aqueous electrolyte battery using a carbonaceous material capable of doping or dedoping lithium for an anode, a composite oxide comprising lithium and a transition metal for a cathode, and a non-aqueous electrolyte obtained by dissolving a carrier salt in a non-aqueous solvent as an electrolyte. The non-aqueous electrolyte comprises at least one monomer selected from the group consisting of isoprene, styrene, 2-vinylpyridine, 1-vinylimidazole, butyl acrylate, ethyl acrylate, methyl methacrylate, N-vinylpyrrolidone, ethyl cinnamate, methyl cinnamate, ionone, and myrcene, which, upon charging, forms a film on the surface of the anode.

Abstract: The present invention provides a battery pack, in which both specific information such as information for identifying the battery and information of battery status are stored. The battery pack has a rewritable storage device for storing the specific information of the battery and the information of battery status, and operation switching means for switching operation status of the battery to a testing mode or to a normal mode. It is designed in such manner that the specific information and the battery status information stored in the storage device are turned to rewritable in the testing mode, and that the specific information of the battery is turned to non-rewritable in the operation mode.

Abstract: The invention provides a non-contact charging equipment having high transmission efficiency and used to supply electric power on non-contact basis by electromagnetic induction, whereby it comprises a plurality of coils on a planar magnetically soft material on each of power transmitting and power receiving sides, whereby the coils on the power transmitting side and the power receiving side are arranged at opposed positions and with a spacing so that magnetic fluxes generated by adjacent coils are directed in reverse directions, the magnetically soft material in planar shape on the power receiving side is arranged directly or via an insulating member on a battery can, and heat generated on the power receiving side is radiated by the battery can.