High-performance ternary nickel-cobalt-manganese oxide nanoparticles-anchored reduced graphene oxide composite as Li-ion battery cathode: Simple preparation and comparative study. Issue 16 (November 2019)

• Record Type: Journal Article
• Authors: Zhang, Wen; Han, Tianli; Cheng, Mengying; Zhang, Min; Zhong, Yan; Cheng, Dong; Zhou, Ping; Liu, Jinyun
• Is Part Of: Ceramics international. Volume 45:Issue 16(2019)
• Page Start: 20105
• Page End: 20112
• Publication Date: 2019-11
• Subjects: Secondary battery -- Nanocomposite -- Cathode -- Capacity -- Rate-performance; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.06.275
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Cathode materials of Li-ion batteries are important for their overall Li-storage performance. However, current cathodes are still non-ideal with rapid capacity decay and poor stability. Herein, a composite cathode consisting of ternary LiMn1/3 Co1/3 Ni1/3 O2 particles anchored on reduced graphene oxide sheets is presented, which is prepared through a simple route. The composite cathode exhibits a stable capacity exceeding 120 mAh g −1 after 500 cycles at 0.2 C, along with a high Coulombic efficiency close to 100%, which are obviously improved compared to the pure LiMn1/3 Co1/3 Ni1/3 O2 . In addition, the rate-performance of the composite is also significantly enhanced. We believe that the good electrochemical performance and the general preparation approach are able to enable the composite to find significant applications in high-performance secondary batteries.