Stable 4 V-class bicontinuous cathodes by hierarchically porous carbon coating on Li3V2(PO4)3nanospheres

Linfeng Fei, Li Sun, Wei Lu, Min Guo, Haitao Huang, Jiaping Wang, Helen L.W. Chan, Shoushan Fan, Yu Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

18 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)12426-12433
Number of pages8
JournalNanoscale
Volume6
Issue number21
DOIs
Publication statusPublished - 1 Jan 2014

ASJC Scopus subject areas

  • Materials Science(all)

Cite this