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XJIPC OpenIR  > 新疆维吾尔自治区电子信息材料与器件重点实验室  > 期刊论文
学科主题: Materials Science
题名: effects of different carbon sources on properties of lifepo4/c by a carbothermal reduction method
作者: Hua Ning; Suo Liuming; Wang Chenyun; Han Ying; Kang Xueya
关键词: Lithium-ion battery ; cathode material ; lithium iron phosphate ; carbothermal reduction (CTR)
刊名: FUNCTIONAL MATERIALS LETTERS
发表日期: 2010
DOI: 10.1142/S1793604710001147
卷: 3, 期:3, 页:155-160
收录类别: SCI
摘要: The LiFePO4/C composite was prepared by carbothermal reduction method (CTR) with FePO4 center dot 2H(2)O, Li2CO3 as starting materials, and acetylene black or polyethylene glycol (PEG; mean molecular weight of 10,000) as carbon sources. The structural and electrochemical properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmittance electron microscopy (TEM), and charge-discharge tests. The results showed that LiFePO4/C is olivine-type phase, and the addition of carbon reduced the LiFePO4 grain size with uniform distribution. The carbon is dispersed between the grains, forming a good electronic contact. The synthesized LiFePO4 composites showed excellent electrochemical performance with initial discharge capacity of 161, 142 and 96mAh.g(-1) at 0.1C, 1C and 5C, respectively and displays a robust rate capacity and stable cycling life.
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内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/2574
Appears in Collections:新疆维吾尔自治区电子信息材料与器件重点实验室_期刊论文

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作者单位: Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China;Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China;Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China

Recommended Citation:
Hua Ning,Suo Liuming,Wang Chenyun,et al. effects of different carbon sources on properties of lifepo4/c by a carbothermal reduction method[J]. FUNCTIONAL MATERIALS LETTERS,2010,3(3):155-160.
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