Fabrication of Fe‐Doped LiCoO2 Sandwich‐Like Nanocomposites as Excellent Performance Cathode Materials for Lithium‐Ion Batteries. Issue 52 (10th November 2015)

• Record Type: Journal Article
• Authors: Liu, Li; Zhang, Huijuan; Yang, Jiao; Mu, Yanping; Wang, Yu
• Is Part Of: Chemistry. Volume 21:Issue 52(2015)
• Page Start: 19104
• Page End: 19111
• Publication Date: 2015-11-10
• Subjects: cathode -- Fe doping -- graphene -- lithium‐ion battery -- sandwiched; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201503734
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: In this article, the two‐layer sandwiched graphene@LiFe0.2 Co0.8 O2 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. Abstract : Recharge your batteries : Herein, the two‐layer sandwiched graphene@LiFe0.2 Co0.8 O2 nanoparticles have been prepared and investigated as high‐performance cathode materials for rechargeable lithium‐ion batteries (see figure).