title: Stable 4 V-class bicontinuous cathodes by hierarchically porous carbon coating on Li3V2(PO4)3 nanospheres.
abstract: A high performance, durable cathode material for lithium ion batteries is achieved by incorporating ∼50 nm Li3V2(PO4)3/C core-shell nanospheres into a porous carbon framework. The Li3V2(PO4)3/C nanocomposite delivers an initial discharge capacity of 130 mA h g(-1), approaching its theoretical limit (133 mA h g(-1)). At a high current rate (10 C), the nanocomposite displays an impressive long cycle life and remarkable capacity retention (90% after 1200 cycles). Notably, the Coulombic efficiency is above 99% during the course of cycling. The remarkable power capability and cycle stability derived from our simple and scalable synthesis suggests that this 4 V-class material could be one of the most promising candidates for future batteries.
authors.affiliation: Department of Applied Physics and Material Research Center, The Hong Kong Polytechnic University, Hong Kong SAR, China. yu.wang@polyu.edu.hk.
authors.forename: Linfeng
authors.initials: L
authors.lastname: Fei
authors.forename: Li
authors.initials: L
authors.lastname: Sun
authors.forename: Wei
authors.initials: W
authors.lastname: Lu
authors.forename: Min
authors.initials: M
authors.lastname: Guo
authors.forename: Haitao
authors.initials: H
authors.lastname: Huang
authors.forename: Jiaping
authors.initials: J
authors.lastname: Wang
authors.forename: Helen L W
authors.initials: HL
authors.lastname: Chan
authors.forename: Shoushan
authors.initials: S
authors.lastname: Fan
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang