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High Electrochemical Performances of Microsphere C-TiO2 Anode for Sodium-Ion Battery
- Authors
- Oh, Seung-Min; Hwang, Jang-Yeon; Yoon, Chong Seung; Lu, Jun; Amine, Khalil; Belharouak, Illias; Sun, Yang Kook
- Issue Date
- Jul-2014
- Publisher
- AMER CHEMICAL SOC
- Keywords
- hydrothermal method; anode; TiO2; Na battery; carbon coating
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.6, no.14, pp.11295 - 11301
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 6
- Number
- 14
- Start Page
- 11295
- End Page
- 11301
- ISSN
- 1944-8244
- Abstract
- High-power, long-life carbon-coated TiO2 microsphere electrodes were synthesized by a hydrothermal method for sodium ion batteries, and the electrochemical properties were evaluated as a function of carbon content. The carbon coating, introduced by sucrose addition, had an effect of suppressing the growth of the TiO2 primary crystallites during calcination. The carbon coated TiO2 (sucrose 20 wt 96 coated) electrode exhibited excellent cycle retention during 50 cycles (100%) and superior rate capability up to a 30 C rate at room temperature. This cell delivered a high discharge capacity of 155 mAh g(composite)(-1) at 0.1 C, 149 mAh g(composite)(-1) at 1 C, and 82.7 mAh g(composite)(-1) at a 10 C rate, respectively.
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Related Researcher
- Yoon, Chong Seung
- COLLEGE OF ENGINEERING (SCHOOL OF MATERIALS SCIENCE AND ENGINEERING)