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Mesoporous composite of LiFePO4 and carbon microspheres as positive-electrode materials for lithium-ion batteries
Alternative TitleParticuology
Tan, Qiangqiang1; Lv, Cheng1,2; Xu, Yuxing1; Yang, Jun1
2014-12-01
Source PublicationPARTICUOLOGY
ISSN1674-2001
Volume17Issue:decPages:106-113
AbstractMesoporous 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.; 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.
KeywordLifepo4 Composite Nanoparticle Hydrothermal Approach Positive-electrode Material Lithium-ion Battery
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.partic.2014.03.008
URL查看原文
Indexed BySCI
Language英语
WOS KeywordHYDROTHERMAL SYNTHESIS ; IRON PHOSPHATE ; ELECTROCHEMICAL PROPERTIES ; CATHODE MATERIAL ; COATED LIFEPO4 ; PERFORMANCE ; MORPHOLOGY ; CHEMISTRY ; TEMPLATE ; ROUTE
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Chemical ; Materials Science, Multidisciplinary
WOS IDWOS:000347656700016
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11828
Collection研究所(批量导入)
Affiliation1.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
Recommended Citation
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.
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