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《中国工程科学》 >> 2007年 第9卷 第2期

锂硫聚合物二次电池关键材料研究进展

清华大学核能与新能源技术研究院,北京 100084

收稿日期: 2005-07-13 修回日期: 2006-06-06

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摘要

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

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