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长寿命高倍率纯硒电极的设计及其电化学性能研究
方若翩; 李峰
2014
Conference Name中国化学会第29届学术年会
Pages158
Conference Date2014
Conference Place中国北京
Abstract锂硒电池因其高的体积能量密度而受到关注。但体现优点的高硒含量电极与通用碳酸酯类电解液不兼容,因此很难得到硒含量高且循环稳定好的电极。我们报道了采用纯硒作为电极,并以醚类溶剂为电解液和石墨烯为阻挡层,实现了高硒含量电极优越的电化学性能。当硒/电解液的比例优化为10g/L,电池的首次放电容量高达631mAh/g,而且循环500次之后衰减率极低,仅为0.078%,在5C的高倍率放电时,放电容量也能高达476mAh/g,具有非常好的倍率性能。所得硒电极结构在高能电池方面具有非常理想的应用前景。
description.department中国科学院金属研究所,沈阳材料科学国家(联合)实验室
Keyword锂硒电池 电解液 石墨烯 高能电池
Funding Organization中国化学会
Language中文
Document Type会议论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73711
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
方若翩,李峰. 长寿命高倍率纯硒电极的设计及其电化学性能研究[C],2014:158.
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