| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터) |
| 권호 |
25권 2호, p.1641 |
| 발표분야 |
에너지 환경 (Energy and Environment) |
| 제목 |
Electrospun calcium doped lithium titanate nanofibers as anode materials for high-performance lithium-ion batteries |
| 초록 |
With widespread use of electronic devices, electric vehicle (EV), and energy storage system (ESS), the interest of high-performance battery have increased. Lithium titanate (LTO) is one of anode material to alternate conventional graphite owing to its safety, high power density, and rate capability. Calcium doped 1-D lithium titanate nanofiber (CaLTONF) is synthesized by using electrospinning method. X-ray diffraction (XRD) and Scanning electron microscopy (SEM) shows successful doping of calcium into LTO lattice and electrospun nanofiber structure, respectively. The CaLTONF shows high capacity of 210 mAh/g at 1 C, which is higher than undoped LTO nanofiber. The enhanced electrochemical performance is attributed by doped Ca ion in LTO structure which can facile Li-ion diffusion and improve the electronic conductivity by changing the charge valence of Ti. |
| 저자 |
배재진, 윤원근, 한현수, 노유성, 안현우, 김원배
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| 소속 |
포항공과대 |
| 키워드 |
에너지 환경 |
| E-Mail |
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| 원문파일 |
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