TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The anode mixture density is preferably 1.6-2 g/cc. The nanopore has a size of less than 1000 nm, preferably 100 nm or less. The porous binder has a porosity of 10% or greater. The porous binder is a heat-resistant binder. The amount of the porous binder that is thermally decomposed in a vacuum at 200 degrees C or higher for 1 hour is less than 10% of the initial weight of the porous binder. The anode active material comprises a metal/metalloid alloyable with lithium or its alloy or oxide, elements of groups 13, 14 and 15, at least one metal comprising silicon, germanium or tin. The first reactive functional group and the second reactive functional group include each at least one functional group comprising hydroxy, carboxy or amine.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The thermally decomposable functional group comprises methylene oxide, ethylene oxide, propylene oxide, methylene oxide ethylene oxide or ethylene oxide propylene oxide.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The porous binder comprises poly(aryletherketone) based polymer, poly(aryl amide) based polymer, polyamic acid based polymer, polyimide based polymer, poly(amide-imide) based polymer, polyurethane based polymer, polyester based polymer, polystyrene based polymer, polybenzimidazole based polymer, polybenzoxazole based polymer, polybenzothiazole based polymer, polysulfone based polymer, poly(ether sulfone) based polymer, poly(phenylene sulfide) based polymer, polyphosphazene or their modified polymer or copolymer. The oligomer has a weight average molecular weight of 20000 g/mole or less. The oligomer has a thermally decomposable functional group. The thermal decomposition temperature of the oligomer is 200 degrees C or higher. EXAMPLE - 12.9 g Of binder composition (obtained by introducing 50 g of polyamic acid polymer solution (obtained by reacting 15.5 g of 4,4'-oxydiphthalic anhydride, 127.1 g of purified N-methylpyrrolidone and 9.91 g of 4,4'-methylendianiline) and 2.22 g of poly(ethylene glycol) bis(3-aminopropyl)terminated as an oligomer into a reaction vessel, 0.86 g of dimethylethylamine was slowly added to increase solubility in water, further stirring for 6 hours, reaction product was slowly added into a vessel containing 2 l of acetone with stirring to induce precipitation, the obtained precipitate was filtered, washed and dried in 60 degrees C vacuum oven for 3 hours to obtain dried powder, 2 g of the dried powder was dissolved in 18 g of pure water), 12 g of silicon alloy, 6.8 g of graphite and 0.2 g of ketjen black as a conducting agent were mixed together to prepare anode active material slurry. The slurry was coated on a copper foil current collector to a thickness of 10 mu m. The obtained was dried at 110 degrees C for 30 minutes to manufacture an anode plate. After punching, press-rolling and welding the anode plate, the anode plate was dried in a vacuum oven at 300 degrees C for 2 hours to prepare an anode.