Calcium terephthalate/graphite composites as anode materials for lithium-ion batteries
作者： Chengxu Mou , Liping Wang , Qijiu Deng , Zongling Huang , Jingze Li
DOI: 10.1007/S11581-014-1357-Z
关键词:
摘要: We have reported a conjugated carbonyl organic calcium terephthalate (CaTPA)-based organic/inorganic composite as anode material for lithium-ion batteries. The bulk CaTPA presents low electronic conductivity leading to large electrochemical polarization during charge/discharge process. Graphite is chosen conductive additive improve its performance via ball milling. effect of graphite amount on the properties investigated. with weight ratio 100:10 (CaTPA/graphite) (named CaTPAG10) shows smallest polarization, largest Li+ diffusion coefficient, and best rate capability, delivering discharge capacity 233 mAhg−1 at current 0.1 C voltage plateau ~0.8 V. CaTPAG10 further exhibits good cycling performance, from 169 down 161 after 50 cycles, giving retention 95 % 2 compared that 89 % pristine CaTPA. To explore commercial application CaTPA, full cell LiCoO2 cathode an material, respectively, tested. reveals operational 2.8 V reversible about 138 1 C.
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