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Synthesis and electrochemical performance of nanoporous Li4Ti5O12 anode material for lithium-ion batteries
Shao, Dan1; He, Jiarong1; Luo, Ying1; Liu, Wei1; Yu, Xiaoyuan1,2; Fang, Yueping1
2012-06-01
Source PublicationJOURNAL OF SOLID STATE ELECTROCHEMISTRY
Volume16Issue:6Pages:2047-2053
Abstract

Nanoporous Li4Ti5O12 (N-LTO) was prepared by sol-gel method using monodisperse polystyrene spheres as a template and followed by calcination process. The as-prepared N-LTO has a spinel structure, large special surface area, and nanoporous structure with the pore average diameter of about 100 nm and wall thickness of 50 nm. Electrochemical experiments show that N-LTO exhibits a high initial discharge capacity of 189 mAh g(-1) at 0.1 C rate cycled between 0.5 and 3.0 V and excellent capacity retention of 170 mAh g(-1) after 100 cycles. EIS and CV analysis show that N-LTO has a higher mobility for Li+ diffusion and a higher exchange current density, indicating an improved electrochemical performance. It is believed that the nanoporous structure has a larger electrode/electrolyte contact area, resulting in better electrochemical properties at high charge/discharge rates.

SubtypeArticle
KeywordLi4ti5o12 Nanoporous Structure Anode Material Lithium-ion Battery
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s10008-011-1604-4
WOS Subject ExtendedElectrochemistry
WOS KeywordSOL-GEL METHOD ; SPINEL LI4TI5O12 ; NANOMATERIALS ; COMPOSITE ; STORAGE
Indexed BySCI
Language英语
WOS SubjectElectrochemistry
WOS IDWOS:000304456200005
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10168
Collection中国科学院广州能源研究所
Affiliation1.S China Agr Univ, Coll Sci, Inst Biomat, Guangzhou 510642, Guangdong, Peoples R China
2.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Shao, Dan,He, Jiarong,Luo, Ying,et al. Synthesis and electrochemical performance of nanoporous Li4Ti5O12 anode material for lithium-ion batteries[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2012,16(6):2047-2053.
APA Shao, Dan,He, Jiarong,Luo, Ying,Liu, Wei,Yu, Xiaoyuan,&Fang, Yueping.(2012).Synthesis and electrochemical performance of nanoporous Li4Ti5O12 anode material for lithium-ion batteries.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,16(6),2047-2053.
MLA Shao, Dan,et al."Synthesis and electrochemical performance of nanoporous Li4Ti5O12 anode material for lithium-ion batteries".JOURNAL OF SOLID STATE ELECTROCHEMISTRY 16.6(2012):2047-2053.
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