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Hierarchical Carbon Framework Wrapped Na3V2(PO4)3as a Superior High-Rate and Extended Lifespan Cathode for Sodium-Ion Batteries

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成果类型:
期刊论文
作者:
Fang, Yongjin;Xiao, Lifen;Ai, Xinping;Cao, Yuliang*;Yang, Hanxi
通讯作者:
Cao, Yuliang
作者机构:
[Cao, Yuliang; Fang, Yongjin; Yang, Hanxi; Ai, Xinping] Wuhan Univ, Coll Chem & Mol Sci, Hubei Key Lab Electrochem Power Sources, Wuhan 430072, Peoples R China.
[Xiao, Lifen] Cent China Normal Univ, Coll Chem, Wuhan 430079, Peoples R China.
通讯机构:
[Cao, Yuliang] W
Wuhan Univ, Coll Chem & Mol Sci, Hubei Key Lab Electrochem Power Sources, Wuhan 430072, Peoples R China.
语种:
英文
关键词:
Na-ion batteries;Na3V2(PO4)3;chemical vapor deposition (CVD);extended lifespan;high rate
期刊:
Advanced Materials
ISSN:
0935-9648
年:
2015
卷:
27
期:
39
页码:
5895-5900
基金类别:
National Key Basic Research Program of ChinaNational Basic Research Program of China [2015CB251100]; National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21373155, 21333007]
机构署名:
本校为其他机构
院系归属:
化学学院
摘要:
Hierarchical carbon framework wrapped Na3V2(PO4)3 (HCF-NVP) is successfully synthesized through chemical vapor deposition on pure Na3V2(PO4)3 particles. Electrochemical experiments show that the HCF-NVP electrode can deliver a large reversible capacity (115 mA h g-1 at 0.2 C), superior high-rate rate capability (38 mA h g-1 at 500 C), and ultra-long cycling stability (54% capacity retention after 20 000 cycles). © ...

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