title: Three-dimensionally ordered macroporous Li3V2(PO4)3/C nanocomposite cathode material for high-capacity and high-rate Li-ion batteries.
abstract: A three-dimensionally ordered macroporous (3DOM) Li3V2(PO4)3/C cathode material with small-sized macropores (50-140 nm) is successfully synthesized using a colloidal crystal array. The 3DOM architecture is built up from fully densely sintered Li3V2(PO4)3/C nanocomposite ceramics particles. Such a 3DOM Li3V2(PO4)3/C micrometer sized particle combines the advantages of both Li3V2(PO4)3 nanocrystal and micrometer sized particle. The resultant 3DOM Li3V2(PO4)3/C nanocomposite exhibits a stable and highly reversible discharge capacity up to 151 mA g(-1) at 0.1 C, and an excellent high-rate capability of 132 mA g(-1) at 5 C in the voltage range of 3.0-4.4 V. Compared to the corresponding bulk nanocomposite, the 3DOM Li3V2(PO4)3/C cathode exhibits a significantly improved high-rate performance, which promises new opportunities in the development of high energy and high power lithium-ion batteries.
authors: New Energy Materials and Device Laboratory, School of Materials Science and Engineering, Chang'an University, Xi'an, 710064, China. donglinli@hotmail.com.
authors: Donglin
authors: D
authors: Li
authors: Miao
authors: M
authors: Tian
authors: Rong
authors: R
authors: Xie
authors: Qian
authors: Q
authors: Li
authors: Xiaoyong
authors: X
authors: Fan
authors: Lei
authors: L
authors: Gou
authors: Peng
authors: P
authors: Zhao
authors: Shoulong
authors: S
authors: Ma
authors: Yongxin
authors: Y
authors: Shi
authors: Hong-Tuan-Hua
authors: HT
authors: Yong
mesh_terms: D002244:Carbon / Q000737:chemistry*; D011211:Electric Power Supplies; D004566:Electrodes; D007477:Ions / Q000737:chemistry; D008094:Lithium / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D019904:Polymethyl Methacrylate / Q000737:chemistry; D016062:Porosity; D017968:Vanadium Compounds / Q000737:chemistry*
chemical_list: D007477:Ions; D017968:Vanadium Compounds; D002244:Carbon; D019904:Polymethyl Methacrylate; D008094:Lithium