Hydrothermal Synthesis of Hierarchical Hollow Li(Ni0.8Co0.15Al0.05)O2 Microspheres for Lithium Ion Batteries. (13th October 2017)

• Record Type: Journal Article
• Authors: Wenlong, Liu; Weiwei, Jiang; Chenran, Yan; Wei, Feng; Dongxia, Wang; Liming, Zhao; Tingting, Feng; Feng, Gong
• Is Part Of: Bulletin of the Korean Chemical Society. Volume 38:Number 11(2017)
• Page Start: 1269
• Page End: 1274
• Publication Date: 2017-10-13
• Subjects: Lithium ion batteries -- Li(Ni0.8Co0.15Al0.05)O2 (NCA) cathode material -- Hydrothermal -- Hierarchical hollow microsphere; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/bkcs.11279
• Languages: English
• ISSNs: 0253-2964

Abstract

Abstract : Li(Ni0. 8 Co0 . 15 Al0 .05 )O2 (NCA) cathode material for lithium ion batteries is synthesized by calcining Ni–Co–Al hydroxide or carbonate hydroxide hydrate precursor, which is obtained by hydrothermal method, and the NCA cathode material is hierarchical hollow microspheres with the diameter in the range of 3–5 µm and composed of nanoflakes and/or nanowires. The effect of hydrothermal reaction time on the morphologies and the crystalline quality of the NCA cathode material is investigated on the basis of scanning electron microscopy, X‐ray diffraction, and tunneling electron microscopy. The NCA cathode material shows smooth and monotonous charge/discharge characteristics, delivers a reversible capacity as 144.4 mAh/g and retains 90.4% after 50 cycles at a current density of 0.1 C between 2.5 and 4.3 V. Abstract :