| 학회 |
한국재료학회 |
| 학술대회 |
2017년 봄 (05/17 ~ 05/19, 목포 현대호텔) |
| 권호 |
23권 1호 |
| 발표분야 |
C. 에너지 재료 분과 |
| 제목 |
Aerosol Deposition of Lithium Titanium Oxide (Li4Ti5O12) and Lithium Lanthanum Zirconium Oxide (Li7La3Zr2O12) for Lithium-Ion Storage |
| 초록 |
Recent studies have shown that powder particles can be consolidated at room temperature, named Room Temperature Impact Consolidation (RTIC) onto any desirable substrate. Aerosol Deposition (AD) method is a spray coating process to produce dense and nanocrystalline film at room temperature directly from an initial bulk powder on almost any substrate material with no need for sintering. The application of AD method with Li4Ti5O12 (LTO) powder produces high density, exceeding 95% of the theoretical material density, high strength and strong adhesion with a high-speed deposition rate onto the copper foil substrate. With the aid of Copper gauze (60 mesh woven from 0.19mm dia wire) the dense morphology produced can be effectively altered resulting in thin and porous low - µm range layers enabling the use of LTO as an anode for superior Lithium storage Capability in Lithium ion battery. In addition, AD method of Li7La3Zr2O12 (LLZO) solid electrolyte enables it to be manufactured into thin and robust membrane resulting in high Lithium – ion conductivity and chemical stability with respect to lithium; this is desirable to minimize safety issues associated with conventional Organic liquid electrolytes, which are flammable and volatile. LTO synthesized via AD method exhibits an excellent specific capacity above 130 mAh g-1 even at a lithiation/delithiation of 30 C. |
| 저자 |
Emmanuel O. Afranie1, Gyuhyeong Kim2, Chunjoong Kim1, Kyeong Ho Baik2
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| 소속 |
1Department of Materials Science and Engineering, 2Chungnam National Univ. |
| 키워드 |
Aerosol Deposition; Lithium Titanate; Lithium Lanthanum Zirconium Oxide
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| E-Mail |
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