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LiCoO2 nanoplates with exposed (001) planes and high rate capability for lithium-ion batteries
Xiao, Xiaoling2,4; Liu, Xiangfeng2; Wang, Li3; Zhao, Hu2; Hu, Zhongbo2; He, Xiangming3; Li, Yadong1; Li, YD
2012-06-01
Source PublicationNANO RESEARCH
ISSN1998-0124
Volume5Issue:6Pages:395-401
AbstractWe report the synthesis of near-uniform LiCoO2 nanoplates by a two-step approach in which beta-Co(OH)(2) nanoplates are synthesized by co-precipitation and then transformed into LiCoO2 nanoplates by solid state reaction at 750 A degrees C for 3 hours. Characterization by high-resolution transmission electron microscopy (HRTEM) and electron diffraction (ED) reveal that the as-prepared LiCoO2 nanoplates are covered with many cracks and have exposed (001) planes. The electrochemical performance of the LiCoO2 nanoplates was investigated by galvanostatic tests. The capacity of LiCoO2 nanoplates stabilized at 123 mA center dot h/g at a rate of 100 mA/g and 113 mA center dot h/g at a rate of 1000 mA/g after 100 cycles. The excellent rate capability of the LiCoO2 nanoplates results from cracks which are perpendicular to the (001) plane and favor fast Li+ transportation. In addition, compared with other methods of synthesis of LiCoO2 the time of the solid reaction state is significantly shorter even at relatively low temperatures, which means the energy consumption in preparing LiCoO2 is greatly decreased. The controllable synthesis of LiCoO2 nanoplates with exposed (001) plane paves an effective way to develop layered cathode materials with high rate capabilities for use in Li-ion batteries.
KeywordLicoo2 Nanoplates Crystal Structure Crystal Plane Rate Capability Electrochemical Performance
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1007/s12274-012-0220-7
Indexed BySCI
Language英语
WOS KeywordHIGH-RATE PERFORMANCE ; CATHODE MATERIAL ; STORAGE DEVICES ; ELECTRODE ; INTERCALATION
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000305529900003
Citation statistics
Cited Times:49[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/3593
Collection多相复杂系统国家重点实验室
Corresponding AuthorLi, YD
Affiliation1.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
2.Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Grad Univ, Beijing 100049, Peoples R China
3.Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Xiao, Xiaoling,Liu, Xiangfeng,Wang, Li,et al. LiCoO2 nanoplates with exposed (001) planes and high rate capability for lithium-ion batteries[J]. NANO RESEARCH,2012,5(6):395-401.
APA Xiao, Xiaoling.,Liu, Xiangfeng.,Wang, Li.,Zhao, Hu.,Hu, Zhongbo.,...&Li, YD.(2012).LiCoO2 nanoplates with exposed (001) planes and high rate capability for lithium-ion batteries.NANO RESEARCH,5(6),395-401.
MLA Xiao, Xiaoling,et al."LiCoO2 nanoplates with exposed (001) planes and high rate capability for lithium-ion batteries".NANO RESEARCH 5.6(2012):395-401.
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