TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The doping element of the lithium manganate material performed with doping treatment is magnesium (Mg), chromium (Cr), aluminum (Al), copper (Cu), cobalt (Co), iron (Fe), vanadium (V), nickel (Ni), zinc (Zn), and/or lanthanum (La). The lithium manganate material comprises lithium manganate optionally with chemical metering ratio, or lithium manganate with gradient concentration distribution.    TECHNOLOGY FOCUS - METALLURGY - Preferred Component: The alloy material comprises silicone or silicon base material, tin or tin base alloy, or other alloy materials; the low-potential lithium embedded compound is conductive polymer or material containing the doped metal element M than the compounds, and the doping element M is lithium (Li), Mg, Cr, Al, Co, Ni, Mn, Zn, Cu and/or La; and the other cathode materials are oxide cathode material comprising tin dioxide (SnO2), cobalt oxide (Co3O4) or copper oxide (CuO), or nitride material (LiMnxP), nickel-phosphorus (NiP) or cobalt-phosphorus (CoP), or sulfide, phosphate or chloride.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The solute of organic electrolyte is lithium salt lithium hexafluorophosphate, lithium bis(oxalate)borate, lithium perchlorate, lithium hexafluoroarsenate or lithium trifluoromethanesulfonate of the soft anion with the concentration of 1-5 M; and the solvent is ethylene carbonate, propylene carbonate and/or methyl carbonate single-component solvent.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The composite membrane comprising lithium ion exchange film layer and is only passed by lithium ion. The exchange membrane layer of composite membrane is crystal lithium ion solid electrolyte membrane, glass lithium ion solid electrolyte membrane or lithium ion exchange Nafion (RTM: sulfonated tetrafluoroethylene based fluoropolymer-copolymer) membrane. Preferred Process: The conductive agent and adhesive are added in anode membrane or cathode membrane.