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Citation: XU Yu-Hong, ZHANG Bao-Hong, NG GUI-Ying, MA Ping. Electrochemical Properties Study of Sb₂O₃ doped Li₄Ti₅O₁₂[J]. Acta Physico-Chimica Sinica, ;2006, 22(11): 1336-1341. doi: 10.3866/PKU.WHXB20061107 shu

Electrochemical Properties Study of Sb₂O₃ doped Li₄Ti₅O₁₂

1.
Chemical Engineering School of Harbin Engineering University, Harbin 150001, P. R. China

Received Date: 15 March 2006
Available Online: 6 November 2006

Li4Ti5O12 was modified by doped Sb2O3. The samples were characterized by galvanostatic charge-discharge，cyclic voltammetry(CV) and electrochemical impedance spectroscopy(EIS). The results indicated that the initial capacity was as high as 595.84mAhog-1 and the colombic efficiency was 45.7％when Ti：Sb＝4：1. The capacity was still 249.57mAhog-1 after 20 charge-discharge cycles. The possible reaction mechanism was proposed and used to explained the losses of capacity. EIS results showed that Sb-doping could suppressed the electrochemical reaction resistant.
- Lithium ion battery;Li4Ti5O12;Doping;anode material
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沈阳化工大学材料科学与工程学院沈阳 110142

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Electrochemical Properties Study of Sb2O3 doped Li4Ti5O12

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通讯作者: 陈斌, bchen63@163.com

Electrochemical Properties Study of Sb₂O₃ doped Li₄Ti₅O₁₂