EFFECTS OF DIFFERENT CARBON SOURCES ON PROPERTIES OF LiFePO4/C BY A CARBOTHERMAL REDUCTION METHOD
Hua Ning; Suo Liuming; Wang Chenyun; Han Ying; Kang Xueya
2010
发表期刊FUNCTIONAL MATERIALS LETTERS
ISSN1793-6047
卷号3期号:3页码:155-160
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.

关键词Lithium-ion Battery Cathode Material Lithium Iron Phosphate Carbothermal Reduction (Ctr)
学科领域Materials Science
DOI10.1142/S1793604710001147
收录类别SCI
WOS记录号WOS:000284360300003
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/2574
专题新疆维吾尔自治区电子信息材料与器件重点实验室
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
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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.
APA Hua Ning,Suo Liuming,Wang Chenyun,Han Ying,&Kang Xueya.(2010).EFFECTS OF DIFFERENT CARBON SOURCES ON PROPERTIES OF LiFePO4/C BY A CARBOTHERMAL REDUCTION METHOD.FUNCTIONAL MATERIALS LETTERS,3(3),155-160.
MLA Hua Ning,et al."EFFECTS OF DIFFERENT CARBON SOURCES ON PROPERTIES OF LiFePO4/C BY A CARBOTHERMAL REDUCTION METHOD".FUNCTIONAL MATERIALS LETTERS 3.3(2010):155-160.
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