title: Fabrication of Fe-Doped LiCoO2 Sandwich-Like Nanocomposites as Excellent Performance Cathode Materials for Lithium-Ion Batteries.
abstract: In this article, the two-layer sandwiched graphene@LiFe0.Co0.8O2 nanoparticles (SG@LFCO) have been prepared and investigated as high-rate and long-life cathode materials for rechargeable lithium-ion batteries. The materials possess a high-surface area (267.1 m(2) g(-1)) and lots of void spaces. By combining various favorable conditions, such as Fe doping, coating graphene, and designing novel morphology, the as-prepared materials deliver a specific capacity of 115 mAh g(-1) at 10 C. At the 0.1 C cycling rate, the capacity retention of 97.2% is sustained after 250 cycles and a coulombic efficiency of around 97.6% is obtained.
authors.affiliation: The State Key Laboratory of Mechanical Transmissions and the School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City, 400044 (P.R. China).
authors.forename: Li
authors.initials: L
authors.lastname: Liu
authors.affiliation: The State Key Laboratory of Mechanical Transmissions and the School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City, 400044 (P.R. China).
authors.forename: Huijuan
authors.initials: H
authors.lastname: Zhang
authors.affiliation: The State Key Laboratory of Mechanical Transmissions and the School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City, 400044 (P.R. China).
authors.forename: Jiao
authors.initials: J
authors.lastname: Yang
authors.affiliation: The State Key Laboratory of Mechanical Transmissions and the School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City, 400044 (P.R. China).
authors.forename: Yanping
authors.initials: Y
authors.lastname: Mu
authors.affiliation: The State Key Laboratory of Mechanical Transmissions and the School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing City, 400044 (P.R. China). wangy@cqu.edu.cn.
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
keywords: Fe doping; cathode; graphene; lithium-ion battery; sandwiched