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Hierarchical Carbon Framework Wrapped Na 3 V 2 (PO 4 ) 3 as a Superior High‐Rate and Extended Lifespan Cathode for Sodium‐Ion Batteries
Author(s) -
Fang Yongjin,
Xiao Lifen,
Ai Xinping,
Cao Yuliang,
Yang Hanxi
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201502018
Subject(s) - materials science , electrochemistry , cathode , carbon fibers , electrode , chemical vapor deposition , sodium , chemical engineering , ion , deposition (geology) , nanotechnology , composite material , chemistry , metallurgy , composite number , engineering , paleontology , physics , quantum mechanics , sediment , biology
Hierarchical carbon framework wrapped Na 3 V 2 (PO 4 ) 3 (HCF‐NVP) is successfully synthesized through chemical vapor deposition on pure Na 3 V 2 (PO 4 ) 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).