Facile Synthesis of Peapod-Like Cu3Ge/Ge@C as a High-Capacity and Long-Life Anode for Li-Ion Batteries
作者:Wang, XY (Wang, Xinyi)[ 1 ] ; Xu, XJ (Xu, Xijun)[ 1 ] ; Liu, J (Liu, Jun)[ 1 ] ; Liu, ZB (Liu, Zhengbo)[ 1 ] ; Shen, JD (Shen, Jiadong)[ 1 ] ; Li, FK (Li, Fangkun)[ 1 ] ; Hu, RZ (Hu, Renzong)[ 1 ] ; Yang, LC (Yang, Lichun)[ 1 ] ; Ouyang, LZ (Ouyang, Liuzhang)[ 1 ] ; Zhu, M (Zhu, Min)[ 1 ]
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CHEMISTRY-A EUROPEAN JOURNAL
DOI: 10.1002/chem.201901629
提前访问: AUG 2019
文献类型:Article; Early Access
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摘要
As anode materials for high-performance Li-ion batteries, peapod-like Ge-based composites, including Ge, a Li-inactive conducting Cu3Ge, and a porous carbon matrix are synthesized simply by annealing CuGeO3@dopamine in a H-2/Ar atmosphere. The introduction of the carbon layer and inactive alloying phase Cu3Ge not only enhances the electrical conductivity of the Ge anode, but also reduces the volume change of Ge during the cell cycle as a buffer. In particular, the anode of this peapod-like Cu3Ge/Ge@C shows an excellent long cycle life as well as outstanding capacity performance, with a discharge specific capacity up to 934 mA h g(-1) after 500 cycles.
关键词
作者关键词:alloys; anodes; germanium; Li-ion batteries; nanocomposites; nanorods; nanostructures
KeyWords Plus:LITHIUM-STORAGE PERFORMANCE; CYCLE-STABLE ANODE; CARBON NANOCOMPOSITE; COMPOSITE ANODE; ENERGY-STORAGE; GERMANIUM; GE; NANOPARTICLES; SILICON; ROUTE
作者信息
通讯作者地址: Liu, J (通讯作者)
显示更多South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.
地址:
显示更多[ 1 ] South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
电子邮件地址:msjliu@scut.edu.cn
基金资助致谢
基金资助机构授权号
National Natural Science Foundation of China
51771076
Innovative Research Groups of the National Natural Science Foundation of China
NSFC51621001
1000 plan from Chinese Government
Guangdong Pearl River Talents Plan
2017GC010218
Guangzhou Science and Technology Plan Projects
201804010104
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出版商
WILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Chemistry
Web of Science 类别:Chemistry, Multidisciplinary