报告了在复合型纳米硫正极材料、纳米储锂合金负极材料和用原位合成工艺掺入纳米二氧化硅的凝 胶型聚合物电解质的研制方面所取得的进展；所研制的复合型纳米硫正极材料与凝胶电解质及锂金属负极配合 制成扣式实验电池进行测试，容量已达到７００mAh/g，发现该材料放电电压是现有锂钴氧材料放电电压的一半， 双电池串联可以与现有锂钴氧材料电池互换；采用微乳液新工艺合成的Cu－Sn纳米合金材料，以石墨与金属锡 复合的材料，以及以金属氧化物作为原料，采用乳液法制备碳微球镶嵌金属锡的球形复合材料等高容量负极材 料取得了较大的进展

 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.

何向明（1965－），男，云南昆明市人，清华大学副教授，研究方向：先进电池及材料