Electrochemical behaviors of hexagonal LiMnBO3 as lithium storage host material for lithium-ion batteries
Electrochemical behaviors of hexagonal LiMnBO3 as lithium storage host material for lithium-ion batteries
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六方晶系LiMnBO3作为锂离子电池储锂主体材料的电化学行为
DOI：
10.1016/j.ceramint.2013.05.046
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发表时间：
2013-12
影响因子：
5.2
通讯作者：
舒杰
中科院分区：
文献类型：
--
作者：
邵涟漪;吴凯强;劳梦梦;水淼;陈程;王冬杰;龙能兵;任元龙;舒杰
Hexagonal LiMnBO3samples with particle size bewteen 0.2 and 1.0 μm are prepared by a carbothermal reaction using stoichiometric mixture of LiOH·H2O, Mn(CH3COO)2·4H2O, H3BO3and carbon black as starting materials. Powder X-ray diffraction and infrared studies of the as-prepared products indicate that hexagonal LiMnBO3with space group of P-6 is formed under high temperature calcination at 750 °C. Electrochemical study shows that hexagonal LiMnBO3as cathode material for lithium-ion batteries can deliver an initial charge capacity of 148.4 m Ah g−1(0.668 Li) in the potential range 2.5–4.8 V, corresponding to the delithiation plateau at 4.76 V. Combined with the charge–discharge curves, ex-situ structural investigations show that the delithiation–lithiation mechanism of hexagonal LiMnBO3cathode is associated with a two-phase transformation reaction. In contrast, hexagonal LiMnBO3as anode material for lithium-ion batteries shows a specific discharge capacity of 678.3 m Ah g−1and corresponding specific charge capacity of 353.9 m Ah g−1in the potential range 0.0–3.0 V. After 20 cycles, the reversible charge capacity for hexagonal LiMnBO3anode is 286.4 m Ah g−1with the capacity retention of 80.9%. The excellent cycling performance is attributed to the quasi-reversible structural evolution as confirmed by ex-situ studies.
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锂离子电池正极材料碳包覆单斜晶系和六方晶系LiMnBO3复合材料的原位可控合成及性能研究
影响因子：
9.2
作者：
Li, Shouli;Xu, Liqiang;Zhai, Yanjun
通讯作者：
Zhai, Yanjun
影响因子：
3.9
作者：
AURBACH, D;DAROUX, ML;YEAGER, E
通讯作者：
YEAGER, E
影响因子：
6.8
作者：
T. Forbes
通讯作者：
T. Forbes
影响因子：
--
作者：
Gnanaraj, JS;Thompson, RW;Abraham, KM
通讯作者：
Abraham, KM
影响因子：
64.8
作者：
K. Lonsdale
通讯作者：
K. Lonsdale