Sol-gel design strategy for embedded Na3V2(PO4)(3) particles into carbon   matrices for high-performance sodium-ion batteries

doi:10.1016/j.carbon.2015.10.054

CORC > 北京大学 > 工学院

	Sol-gel design strategy for embedded Na3V2(PO4)(3) particles into carbon matrices for high-performance sodium-ion batteries
	Tao, Shi ; Cui, Peixin ; Huang, Weifeng ; Yu, Zhen ; Wang, Xingbo ; Wei, Shenghui ; Liu, Daobin ; Song, Li ; Chu, Wangsheng
刊名	CARBON
	2016
关键词	SUPERIOR RATE CAPABILITY LONG-CYCLE LIFE CATHODE MATERIAL COATED NA3V2(PO4)(3) ANODE MATERIAL HIGH-POWER GRAPHENE STABILITY ENHANCEMENT CHALLENGES
DOI	10.1016/j.carbon.2015.10.054
英文摘要	NASICON-type Na3V2(PO4)(3)(NVP) is one of the most promising cathode materials for sodium-ion batteries (SIBs). Here, we report a simple sol gel method to prepare NVP@C porous microspheres network for high performance SIBs, which can realize NVP nanoparticles successfully embedding into acetylene carbon (SP) and multiple walled carbon nanotubes (MCNTs) matrices. The electrochemical characterizations demonstrate that both NVP/SP and NVP/MCNTs show excellent cell performance with high rate ability and stable reversibility, especially for the NVP/MCNTs sample. In particular, as high as 112.8 mAh/g and 70 mAh/g of the discharge capacity for NVP/MCNTs system can be delivered at 0.2C and 10C, respectively. Furthermore, a good capacity retention of 90% can be maintained after 400 cycles at 1C rate. Moreover, the enhanced electrode performance is ascribed to the contribution from both of the porous microspheres morphology and functional carbon matrices, which can favor the migration of both electrons and ions. (C) 2015 Elsevier Ltd. All rights reserved.; Science Fund for Creative Research Groups of NSFC [11321503]; National Natural Science Foundation of China (NSFC) [11179001, 11275227, 11179006, U1232131, 51222202, 11179004]; Fundamental Research Funds for Central Universities [2012QNQA4005, WK2310000035, WK2310000044]; SCI(E); EI; ARTICLE; hwf@pku.edu.cn; song2012@ustc.edu.cn; chuws@ustc.edu.cn; 1028-1033; 96
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/438061]
专题	工学院
推荐引用方式 GB/T 7714	Tao, Shi,Cui, Peixin,Huang, Weifeng,et al. Sol-gel design strategy for embedded Na3V2(PO4)(3) particles into carbon matrices for high-performance sodium-ion batteries[J]. CARBON,2016.
APA	Tao, Shi.,Cui, Peixin.,Huang, Weifeng.,Yu, Zhen.,Wang, Xingbo.,...&Chu, Wangsheng.(2016).Sol-gel design strategy for embedded Na3V2(PO4)(3) particles into carbon matrices for high-performance sodium-ion batteries.CARBON.
MLA	Tao, Shi,et al."Sol-gel design strategy for embedded Na3V2(PO4)(3) particles into carbon matrices for high-performance sodium-ion batteries".CARBON (2016).