中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Mesoporous composite of LiFePO4 and carbon microspheres as positive-electrode materials for lithium-ion batteries

文献类型:期刊论文

作者Tan, Qiangqiang1; Lv, Cheng1,2; Xu, Yuxing1; Yang, Jun1
刊名PARTICUOLOGY
出版日期2014-12-01
卷号17期号:dec页码:106-113
关键词LiFePO4 Composite Nanoparticle Hydrothermal approach Positive-electrode material Lithium-ion battery
ISSN号1674-2001
其他题名Particuology
中文摘要Mesoporous LiFePO4/C microspheres consisting of LiFePO4 nanoparticles are successfully fabricated by an eco-friendly hydrothermal approach combined with high-temperature calcinations using cost-effective LiOH and Fe3+ salts as raw materials. In this strategy, pure mesoporous LiFePO4 microspheres, which are composed of LiFePO4 nanoparticles, were uniformly coated with carbon (similar to 1.5 nm). Benefiting from this unique architecture, these mesoporous LiFePO4/C microspheres can be closely packed, having high tap density. The initial discharge capacity of LiFePO4/C microspheres as positive-electrode materials for lithium-ion batteries could reach 165.3 mAh/g at 0.1 C rate, which is notably close to the theoretical capacity of LiFePO4 due to the large BET surface area, which provides for a large electrochemically available surface for the active material and electrolyte. The material also exhibits high rate capability (similar to 100 mAh/g at 8 C) and good cycling stability (capacity retention of 92.2% after 400 cycles at 8 C rate). (C) 2014 Published by Elsevier B.V. on behalf of Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences.
英文摘要Mesoporous LiFePO4/C microspheres consisting of LiFePO4 nanoparticles are successfully fabricated by an eco-friendly hydrothermal approach combined with high-temperature calcinations using cost-effective LiOH and Fe3+ salts as raw materials. In this strategy, pure mesoporous LiFePO4 microspheres, which are composed of LiFePO4 nanoparticles, were uniformly coated with carbon (similar to 1.5 nm). Benefiting from this unique architecture, these mesoporous LiFePO4/C microspheres can be closely packed, having high tap density. The initial discharge capacity of LiFePO4/C microspheres as positive-electrode materials for lithium-ion batteries could reach 165.3 mAh/g at 0.1 C rate, which is notably close to the theoretical capacity of LiFePO4 due to the large BET surface area, which provides for a large electrochemically available surface for the active material and electrolyte. The material also exhibits high rate capability (similar to 100 mAh/g at 8 C) and good cycling stability (capacity retention of 92.2% after 400 cycles at 8 C rate). (C) 2014 Published by Elsevier B.V. on behalf of Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences.
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Chemical ; Materials Science, Multidisciplinary
研究领域[WOS]Engineering ; Materials Science
关键词[WOS]HYDROTHERMAL SYNTHESIS ; IRON PHOSPHATE ; ELECTROCHEMICAL PROPERTIES ; CATHODE MATERIAL ; COATED LIFEPO4 ; PERFORMANCE ; MORPHOLOGY ; CHEMISTRY ; TEMPLATE ; ROUTE
收录类别SCI
原文出处://WOS:000347656700016
语种英语
WOS记录号WOS:000347656700016
公开日期2015-04-01
源URL[http://ir.ipe.ac.cn/handle/122111/11828]  
专题过程工程研究所_研究所(批量导入)
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Tan, Qiangqiang,Lv, Cheng,Xu, Yuxing,et al. Mesoporous composite of LiFePO4 and carbon microspheres as positive-electrode materials for lithium-ion batteries[J]. PARTICUOLOGY,2014,17(dec):106-113.
APA Tan, Qiangqiang,Lv, Cheng,Xu, Yuxing,&Yang, Jun.(2014).Mesoporous composite of LiFePO4 and carbon microspheres as positive-electrode materials for lithium-ion batteries.PARTICUOLOGY,17(dec),106-113.
MLA Tan, Qiangqiang,et al."Mesoporous composite of LiFePO4 and carbon microspheres as positive-electrode materials for lithium-ion batteries".PARTICUOLOGY 17.dec(2014):106-113.

入库方式: OAI收割

来源:过程工程研究所

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