Hollow core-shell structured CNT/PAN@Co9S8@C coaxial nanocables as high-performance anode material for lithium ion batteries

被引：18
|
作者：
Gao, Junting [1 ]
Wang, Xingchao [1 ]
Huang, Yudai [1 ]
Meng, Zhaoting [1 ]
Sun, Ying [1 ]
Zhang, Yue [1 ]
Guo, Yong [1 ]
Tang, Xincun [2 ]
机构：
[1] Xinjiang Univ, Coll Chem, Inst Appl Chem, Key Lab Adv Funct Mat,Minist Educ,Key Lab Energy, Urumqi 830046, Xinjiang, Peoples R China
[2] Cent South Univ, Sch Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 853卷
基金：
中国国家自然科学基金;
关键词：
Hollow core-shell structured CNT/PAN@Co9S8@C; Coaxial nanocables; High-performance; Anode material; Lithium ion batteries; HIGH-CAPACITY; ELECTRODE MATERIALS; MESOPOROUS CO9S8; ENERGY-STORAGE; NANOPARTICLES; COMPOSITE; GRAPHENE; NANOSHEETS; NANOMATERIALS; CATHODE;
D O I：
10.1016/j.jallcom.2020.157354
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Transition metal sulfides, which possesses high ionic conductivity and high theoretical capacity, have attracted tremendous interest in the field of lithium ion batteries (LIBs). However, their application suffers from severe volume changes and structure deterioration during charge-discharge process. Herein, hollow core-shell structured CNT/PAN@Co9S8@C coaxial nanocables were synthesized. The unique structure can provide more channels for Li+ ions/electrons diffusion and alleviate volume swelling during charge/discharge process. As a result, CNT/PAN@Co9S8@C exhibits good cycling performance (>700 mAh g(-1) at 0.1 A g(-1)) and rate capability (455 mAh g(-1) at 2 A g(-1) after 100 cycles). The impressive results demonstrate CNT/PAN@Co9S8@C is a promising candidate for anode material in high-performance LIBs. (C) 2020 Elsevier B.V. All rights reserved.
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页数：7
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