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alpha-Fe2O3 multi-shelled hollow microspheres for lithium ion battery anodes with superior capacity and charge retention
Alternative TitleEnergy Environ. Sci.
Xu, Simeng1; Hessel, Colin M.2; Ren, Hao1; Yu, Ranbo1; Jin, Quan2; Yang, Mei2; Zhao, Huijun3; Wang, Dan2
2014-02-01
Source PublicationENERGY & ENVIRONMENTAL SCIENCE
ISSN1754-5692
Volume7Issue:2Pages:632-637
AbstractMulti-shelled alpha-Fe2O3 hollow microspheres were synthesized using carbonaceous microsphere sacrificial templates and utilized for high capacity anode materials in lithium ion batteries (LIBs). Structural aspects including the shell thickness, number of internal multi-shells, and shell porosity were controlled by synthesis parameters to produce hollow microspheres with maximum lithium capacity and stable cycling behavior. Thin, porous, hollow microspheres with three concentric multi-shells showed the best cycling performance, demonstrating excellent stability and a reversible capacity of up to 1702 mA h g(-1) at a current density of 50 mA g(-1). The electrode performance is attributed to the large specific surface area and enhanced volumetric capacity of the multi-shelled hollow spheres that provide maximum lithium storage, while the porous thin shells facilitate rapid electrochemical kinetics and buffer mechanical stresses that accompany volume changes during de/lithiation.; Multi-shelled alpha-Fe2O3 hollow microspheres were synthesized using carbonaceous microsphere sacrificial templates and utilized for high capacity anode materials in lithium ion batteries (LIBs). Structural aspects including the shell thickness, number of internal multi-shells, and shell porosity were controlled by synthesis parameters to produce hollow microspheres with maximum lithium capacity and stable cycling behavior. Thin, porous, hollow microspheres with three concentric multi-shells showed the best cycling performance, demonstrating excellent stability and a reversible capacity of up to 1702 mA h g(-1) at a current density of 50 mA g(-1). The electrode performance is attributed to the large specific surface area and enhanced volumetric capacity of the multi-shelled hollow spheres that provide maximum lithium storage, while the porous thin shells facilitate rapid electrochemical kinetics and buffer mechanical stresses that accompany volume changes during de/lithiation.
KeywordNegative-electrode Storage Properties Nanostructured Materials Energy-conversion Accurate Control Metal-oxide Spheres Performance Nanotubes Devices
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology ; Life Sciences & Biomedicine
DOI10.1039/c3ee43319f
URL查看原文
Indexed BySCI
Language英语
WOS KeywordNEGATIVE-ELECTRODE ; STORAGE PROPERTIES ; NANOSTRUCTURED MATERIALS ; ENERGY-CONVERSION ; ACCURATE CONTROL ; METAL-OXIDE ; SPHERES ; PERFORMANCE ; NANOTUBES ; DEVICES
WOS Research AreaChemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS SubjectChemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS IDWOS:000331413700012
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Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8026
Collection研究所(批量导入)
Affiliation1.Univ Sci & Technol Beijing, Dept Phys Chem, Sch Met & Ecol Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China
3.Griffith Univ, Ctr Clean Environm & Energy, Brisbane, Qld 4222, Australia
Recommended Citation
GB/T 7714
Xu, Simeng,Hessel, Colin M.,Ren, Hao,et al. alpha-Fe2O3 multi-shelled hollow microspheres for lithium ion battery anodes with superior capacity and charge retention[J]. ENERGY & ENVIRONMENTAL SCIENCE,2014,7(2):632-637.
APA Xu, Simeng.,Hessel, Colin M..,Ren, Hao.,Yu, Ranbo.,Jin, Quan.,...&Wang, Dan.(2014).alpha-Fe2O3 multi-shelled hollow microspheres for lithium ion battery anodes with superior capacity and charge retention.ENERGY & ENVIRONMENTAL SCIENCE,7(2),632-637.
MLA Xu, Simeng,et al."alpha-Fe2O3 multi-shelled hollow microspheres for lithium ion battery anodes with superior capacity and charge retention".ENERGY & ENVIRONMENTAL SCIENCE 7.2(2014):632-637.
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