Germanium nanoparticles supported by 3D ordered macroporous nickel frameworks as high-performance free-standing anodes for Li-ion batteries

doi:10.1016/j.cej.2018.08.056

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Germanium nanoparticles supported by 3D ordered macroporous nickel frameworks as high-performance free-standing anodes for Li-ion batteries
	Liu, X ; Liu, YS ; Harris, MM ; Li, JH ; Wang, KX ; Chen, JS
刊名	CHEMICAL ENGINEERING JOURNAL
	2018
卷号	354 期号:-页码:616-622
关键词	HIGH-CAPACITY INVERSE OPAL MESOPOROUS GERMANIUM SCALABLE SYNTHESIS LITHIUM BATTERIES STORAGE DEVICES GE CARBON ELECTRODES PARTICLES
ISSN号	1385-8947
DOI	10.1016/j.cej.2018.08.056
文献子类	期刊论文
英文摘要	Germanium-based materials are gaining increasing attention as promising anodes for Li-ion batteries (LIBs) due to their high specific capacity, good cycling stability and excellent rate performance. Similarly to Si, Ge-based anodes undergo a huge volume expansion and contraction during Li intercalation and deintercalation, causing a rapid and irreversible capacity decay. In this work, Ge nanoparticles are uniformly attached to a 3D ordered macroporous (3DOM) Ni framework (Ge/3DOM-Ni) via a facile drop-coating technique in order to address the volume expansion and stability issues plaguing Ge anodes. The 3D ordered macroporous Ni frameworks with high porosity act not only as highly conductive current collectors but also as a robust porous support for the formation of a thin layer of Ge nanoparticles. The three-dimensional porous network facilitates the penetration of the electrolyte and lithium ions. The possible alloy interface generated among the Ge nanoparticles and Ni framework during the calcination process ensures good electric contact among the nanoparticles and the 3D ordered macroporous Ni framework. When used as self-supporting binder-free anodes for lithium ion batteries, the Ge/3DOM-Ni electrode shows high rate performance and excellent structural and cycling stability. This work provides a facile and effective strategy for improving the electrochemical performance of Ge-based anodes.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/30957]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Synchrotron Radiat Facil, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China 2.Shanghai Jiao Tong Univ, Shanghai Elect Energy Devices Res Ctr, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China
推荐引用方式 GB/T 7714	Liu, X,Liu, YS,Harris, MM,et al. Germanium nanoparticles supported by 3D ordered macroporous nickel frameworks as high-performance free-standing anodes for Li-ion batteries[J]. CHEMICAL ENGINEERING JOURNAL,2018,354(-):616-622.
APA	Liu, X,Liu, YS,Harris, MM,Li, JH,Wang, KX,&Chen, JS.(2018).Germanium nanoparticles supported by 3D ordered macroporous nickel frameworks as high-performance free-standing anodes for Li-ion batteries.CHEMICAL ENGINEERING JOURNAL,354(-),616-622.
MLA	Liu, X,et al."Germanium nanoparticles supported by 3D ordered macroporous nickel frameworks as high-performance free-standing anodes for Li-ion batteries".CHEMICAL ENGINEERING JOURNAL 354.-(2018):616-622.