Facile Synthesis of Yolk-Shell Bi@C Nanospheres with Superior Li-ion Storage Performances

时间:2020-12-10作者:浏览量:359


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


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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

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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