Electrochemical behaviors of hexagonal LiMnBO3 as lithium storage host material for lithium-ion batteries》.pdf

Available online at CERAMICS INTERNATIONAL Ceramics International 39 (2013) 9309–9317 /locate/ceramint Electrochemical behaviors of hexagonal LiMnBO3 as lithium storage host material for lithium-ion batteries Rui Ma, Lianyi Shao, Kaiqiang Wu, Mengmeng Lao, Miao Shui, Cheng Chen, Dongjie Wang, Nengbing Long, Yuanlong Ren, Jie Shun Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang Province, Peoples Republic of China Received 20 April 2013; received in revised form 14 May 2013; accepted 15 May 2013 Available online 21 May 2013 Abstract Hexagonal LiMnBO3 samples with particle size bewteen 0.2 and 1.0 μm are prepared by a carbothermal reaction using stoichiometric mixture of LiOH H O, Mn(CH COO) 4H O, H BO and carbon black as starting materials. Powder X-ray diffraction and infrared studies of the 2 3 2 2 3 3 as-prepared products indicate that hexagonal LiMnBO3 with space group of P-6 is formed under high temperature calcination at 750 1C. Electrochemical study shows that hexagonal LiMnBO3 as cathode material for lithium-ion bat