| 학회 |
한국재료학회 |
| 학술대회 |
2018년 가을 (11/07 ~ 11/09, 여수 디오션리조트) |
| 권호 |
24권 2호 |
| 발표분야 |
C. 에너지 재료 분과 |
| 제목 |
Pressureless Sintering of Dense Li1.3Al0.3Ti1.7(PO4)3 Ceramics for All-solid-state Lithium-ion Batteries |
| 초록 |
Use of flammable organic liquid electrolytes with low ignition point and low thermal stability may result in an explosion. Solid electrolytes become a good candidate to solve safety problems. LATP (Li1.3Al1.3Ti1.7(PO4)3) is one of promising solid electrolyte due to its good ionic conductivity and chemical stability against water but it suffers from low density of sintered body. While most previous operations have adopted hot press sintering and spark plasma sintering to alleviate density problems, these processes are not cost-effective. In this work, we introduced a two-step pressureless sintering to anneal the LATP ceramics with a good density and ionic conductivity in a simple process. To improve the density, we prepared the LATP powders using different phase of TiO2 precursors (rutile and anatase) with an investigation of densification aspect. Impedance of LATP ceramics was measured by electrochemical impedance spectroscopy. |
| 저자 |
김동규, 윤종혁, 김도경
|
| 소속 |
KAIST |
| 키워드 |
LATP Ceramics; Pressureless Sintering; All-solid-state Lithium-ion Batteries
|
| E-Mail |
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