MoS_2/纳米炭纤维的合成及其用作锂离子电池负极材料的储锂性能（英文）  

Nanofibers with MoS_2 nanosheets encapsulated in carbon as a binder-free anode for superior lithium storage

作　　者：张秀[1] 邓亚凯 王艳莉[1] 詹亮[1] 杨树斌[2] 宋燕[3] ZHANG Xiu;DENG Ya-kai;WANG Yan-li;ZHAN Liang;YANG Shu-bin;SONG Yan(State Key Laboratory of Chemical Engineering,Key Laboratory for Specially Functional Polymers and Related Technology of Ministry of Education,Shanghai Key Laboratory of Multiphase Materials Chemical Engineering,East China University of Science and Technology,Shanghai200237,China;Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education,School of Materials Science and Engineering,Beihang University,Beijing100191,China;CAS Key Laboratory of Carbon Materials,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan030001,China)

机构地区：[1]华东理工大学,化学工程联合国家重点实验室,上海市多相结构材料化学工程重点实验室,特种功能高分子材料及相关技术教育部重点实验室,上海200237 [2]北京航天航空大学,北京100191 [3]中国科学院山西煤炭化学研究所,炭材料重点实验室,山西太原030001

出　　处：《新型炭材料》2018年第6期554-561,共8页New Carbon Materials

基　　金：国家自然科学基金(51472086,51002051);中国科学院炭材料重点实验室探索基金(KLCMKFJJ1703).

摘　　要：以聚丙烯腈和剥离的MoS_2为原料,采用电化学静电纺丝法合成了一维(1D)结构的MoS_2/CNFs。剥离的MoS_2尺寸约为150 nm,并能镶嵌在纳米炭纤维基体内。所制1D MoS_2/CNFs可以切成柔性圆片,在无需添加粘结剂的情况下直接用作电极片。该1D MoS_2/CNFs负极材料展现出较好的电化学性能,在100 mAg^(-1)的电流密度下,反复充放电50次,可逆容量高达700 mAhg^(-1);在1 000 mAg^(-1)的大电流密度下,反复充放电200次,可逆容量仍保持450 mAhg^(-1)。One-dimensional MoS 2/carbon nanofibers(MoS 2/CNFs)were synthesized by electrospinning using exfoliated MoS 2 nanosheets and polyacrylonitrile as the precursors.The exfoliated MoS 2 nanosheets about 150 nm across were encapsulated in carbon,and the free-standing MoS 2/CNF film was easily cut into a flexible tablet that could be directly used as a binder-free anode for lithium storage.The MoS 2/CNFs showed a high reversible capacity of 700 mAh g-1 at 100 mA g-1 after 50 cycles,a high rate capacity of 450 mAh g-1 at 1000 mA g-1 after 200 cycles and good cycling stability.

关 键 词：MOS2 纳米炭纤维 电化学纺丝 负极材料 

分 类 号：TB333.2[一般工业技术—材料科学与工程]