Preparation of LiNi1/3Co1/3Mn1/3O2/polytriphenylamine cathode composites with enhanced electrochemical performances towards reversible lithium storage. Issue 8 (1st June 2019)

• Record Type: Journal Article
• Authors: Yang, Xinli; Bao, Chenguang; Xie, Lingling; Zhu, Limin; Cao, Xiaoyu
• Is Part Of: Ceramics international. Volume 45:Issue 8(2019)
• Page Start: 9726
• Page End: 9735
• Publication Date: 2019-06-01
• Subjects: Lithium ion batteries -- LiNi1/3Co1/3Mn1/3O2/polytriphenylamine composites -- Cathode materials -- Enhanced electrochemical performances; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.02.007
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: A series of LiNi1/3 Co1/3 Mn1/3 O2 /polytriphenylamine composites were successfully synthesized by ultrasound dispersion method. LiNi1/3 Co1/3 Mn1/3 O2 /polytriphenylamine (5.0 wt%) composite with small and homogeneous particle size exhibited excellent electrochemical performance, which delivered an initial discharge capacity of 223.7 mAh g −1 with a capacity retention of 84.39% after 100 cycles in the voltage range of 2.5–4.5 V and at a current density of 0.2C. Moreover, an excellent specific discharge capacity of 127.3 mAh g −1 at a current density 5C indicates a superior rate performance of the LiNi1/3 Co1/3 Mn1/3 O2 /polytriphenylamine (5.0 wt%) composite. The good electrochemical performances of the composite can be attributed to the introduction of polytriphenylamine, which increased electrical conductivity, decreased charge transfer resistance and increased Li + ion diffusion ability. These noteworthy results demonstrated that LiNi1/3 Co1/3 Mn1/3 O2 /polytriphenylamine composites might be potential cathode materials for lithium ion batteries. Graphical abstract: Image 1