Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 9, Issue 7, Pages 6138-6143Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b15982
Keywords
Li4Ti5O12; rutile-TiO2; carbon coating anode; full lithium-ion battery
Funding
- Specialized Research Fund for the Doctoral Program of Higher Education [20130146120013]
- Wuhan Chenguang Science and Technology Project for Young Experts [2015070404010192]
- National Natural Science Foundation of China [NSFC 21303064\21603080]
- Fundamental Research Funds for the Central Universities [2662015PY163\2662015QC046]
- Hefei University of Technology (HFUT) [407037171]
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The spinel Li4Ti5O12/rutile-TiO2@carbon (LTO-RTO@C) composites were fabricated via a hydro thermal method combined with calcination treatment employing glucose as carbon source. The carbon coating layer and the in situ formed rutile-TiO2 can effectively enhance the electric conductivity and provide quick Li+ diffusion pathways for Li4Ti5O12. When used as an anode material for lithium-ion batteries, the rate capability and cycling stability of LTO-RTO@C composites were improved in comparison with those of pure Li4Ti5O12 or Li4Ti5O12/rutile-TiO2. Moreover, the potential of approximately 1.8 V rechargeable full lithium-ion batteries has been achieved by utilizing an LTO-RTO@C anode and a LiFePO4@N-doped carbon cathode.
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