Facile Synthesis of Yolk-Shell Bi@C Nanospheres with Superior Li-ion Storage Performances
作者:Xu, XJ (Xu, Xijun)[ 1,2 ] ; Zhang, DC (Zhang, Dechao)[ 1 ] ; Wang, ZS (Wang, Zhuosen)[ 1 ] ; Zuo, SY (Zuo, Shiyong)[ 1 ] ; Shen, JD (Shen, Jiadong)[ 1 ] ; Liu, ZB (Liu, Zhengbo)[ 1 ] ; Liu, J (Liu, Jun)[ 1 ]
ACTA METALLURGICA SINICA-ENGLISH LETTERS
DOI: 10.1007/s40195-020-01117-w
Early access icon在线发表日期: AUG 2020
文献类型:Article; Early Access
查看期刊影响力
摘要
Recently, exploring appropriate anode materials for current commercial lithium-ion batteries (LIBs) with suitable operating potential and long cycle life has attracted extensive attention. Herein, a novel anode of Bi nanoparticles fully encapsulated in carbon nanosphere framework with uniform yolk-shell nanostructure was prepared via a facile hydrothermal method. Due to the special structure design, this anode of yolk-shell Bi@C can effectively moderate the volume exchange, avoid the aggregation of active Bi nanoparticle and provide superior kinetic during discharge/charge process. Cycling in the voltage of 0.01-2.0 V, yolk-shell Bi@C anode exhibits outstanding Li(+)storage performance (a reversible capacity over 200 mAh g(-1)after 400 cycles at 1.25 A g(-1)) and excellent rate capability (a capacity of 404, 347, 304, 275, 240, 199 and 163 mAh g(-1)at 0.05, 0.1, 0.25, 0.5, 1.0, 1.8 and 3.2 A g(-1), respectively). This work indicates that rational design of nanostructured anode materials is highly applicable for the next-generation LIBs.
关键词
作者关键词:Yolk-shell structure; Li-ion batteries; Alloying type; Bismuth; Rate capability
KeyWords Plus:ANODE MATERIALS; LITHIUM-ION; HIGH-CAPACITY; STABLE ANODE; SODIUM; SPHERES; NANOPARTICLES; ROBUST
作者信息
通讯作者地址:
South China University of Technology South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China.
通讯作者地址: Liu, J (通讯作者)
显示更多South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China.
地址:
显示更多[ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China
显示更多[ 2 ] Guangdong Univ Technol, Sch Chem Engn & Light Ind, Guangzhou 510006, Peoples R China
电子邮件地址:msjliu@scut.edu.cn
基金资助致谢
基金资助机构显示详情授权号
National Natural Science Foundation of China (NSFC)
51771076
National Natural Science Foundation of China (NSFC)
NSFC51621001
Guangdong Pearl River Talents Plan
2017GC010218
查看基金资助信息
出版商
CHINESE ACAD SCIENCES, INST METAL RESEARCH, 72 WENHUA RD, SHENYANG, 110016, PEOPLES R CHINA
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Metallurgy & Metallurgical Engineering
Web of Science 类别:Metallurgy & Metallurgical Engineering