A nano-scale sulfur polymer composite cathode material has been developed for Li/S polymer secondary batteries, and its cycle capacity is over 700 mAh/g when the lithium metal is used as the anode. Its discharge voltage is the half of that of LiCoO₂, showing the exchangeability between the nano sulfur battery and LiCoO₂ battery. Graphite/Sulfur cell works well. Nano-scale Cu/Sn alloy powder has been synthesized by a novel micro-emulsion process. Its cycling capacity is over300mAh桙g. Both Sn/C composite prepared by ball milling and Sn/C microspheric composite prepared by carbothermal reduction show good electrochemical performance. Lithium compensation of anode materials by Li_2.6Co_0.4N for the initial irreversible capacity paves the way to prepare large capacity anode materials. The successful preparation of Poly(AN-MMA)and Poly (AN-BuA) copolymers shows that the cost of gel electrolyte can be reduced. The advanced Li/S polymer secondary batteries will be developed in the near future.