테잎캐스팅을 이용한 전고체전해질 Li7La3Zr2O12 후막 제조
Fabrication of Solid State Electrolyte Li7La3Zr2O12 thick Film by Tape Casting
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
A thick film of Li7La3Zr2O12 (LLZO) solid-state electrolyte is fabricated using the tape casting process and is compared to a bulk specimen in terms of the density, microstructure, and ion conductivity. The final thickness of LLZO film after sintering is 240 μm which is stacked up with four sheets of LLZO green films including polymeric binders. The relative density of the LLZO film is 83%, which is almost the same as that of the bulk specimen. The ion conductivity of a LLZO thick film is 2.81 × 10−4 S/cm, which is also similar to that of the bulk specimen, 2.54 × 10−4 S/ cm. However, the microstructure shows a large difference in the grain size between the thick film and the bulk specimen. Although the grain boundary area is different between the thick film and the bulk specimen, the fact that both the ion conductivities are very similar means that no secondary phase exists at the grain boundary, which is thought to originate from nonstoichiometry or contamination.
Abstract
A thick film of Li7La3Zr2O12 (LLZO) solid-state electrolyte is fabricated using the tape casting process and is compared to a bulk specimen in terms of the density, microstructure, and ion conductivity. The final thickness of LLZO film after sintering is 240 μm which is stacked up with four sheets of LLZO green films including polymeric binders. The relative density of the LLZO film is 83%, which is almost the same as that of the bulk specimen. The ion conductivity of a LLZO thick film is 2.81 × 10−4 S/cm, which is also similar to that of the bulk specimen, 2.54 × 10−4 S/ cm. However, the microstructure shows a large difference in the grain size between the thick film and the bulk specimen. Although the grain boundary area is different between the thick film and the bulk specimen, the fact that both the ion conductivities are very similar means that no secondary phase exists at the grain boundary, which is thought to originate from nonstoichiometry or contamination.
참고문헌 (26)
- R. Murugan, , Angew Chem. Int. Ed, 46, pp.7778~ (2007)
- R. Murugan, , Electrochem. Commun, 13, pp.1373~ (2011)
- S. Kumazaki, , Electrochem. Commun, 13, pp.509~ (2011)
- M. Huang, , Electrochem. Commun, 21, pp.62~ (2012)
- A. Dumon, , Solid State Ionics, 243, pp.36~ (2013)
- C. Deviannapoorani, , J. Power Sources, 240, pp.18~ (2013)
- S. Toda, , Solid State Ionics, 233, pp.102~ (2013)
- R. Chen, , Solid State Ionics, 265, pp.7~ (2014)
- J. Ahn, , J. Power Sources, 254, pp.287~ (2014)
- M Huang, , J. Power Sources, 261, pp.206~ (2014)
- W. Gu, , Solid State Ionics, 274, pp.100~ (2015)
- A. Hubaud, , J. Alloys Compd, 644, pp.804~ (2015)
- I. Kokal, , Solid State Ionics, 185, pp.42~ (2011)
- Y. Shimonishi, , Solid State Ionics, 183, pp.48~ (2011)
- R. Takano, , Solid State Ionics, 255, pp.104~ (2014)
- M. Kotobuki, , Ceram. Int, 40, pp.5043~ (2014)
- N. Rosenkiewitz, , J. Power Sources, 278, pp.104~ (2015)
- K. Tadanaga, , J. Power Sources, 273, pp.844~ (2015)
- M. Huang, , Solid State Ionics, 204, pp.41~ (2011)
- M. Kotobuki, , J. Power Sources, 196, pp.7750~ (2011)
- M. Kotobuki, , J. Power Sources, 199, pp.346~ (2012)
- S. Ohta, , J. Power Sources, 265, pp.40~ (2014)
- Y. Zhang, , J. Power Sources, 268, pp.960~ (2014)
- S. Baek, , J. Power Sources, 249, pp.197~ (2014)
- J. Lee, , Solid State Ionics, 258, pp.13~ (2014)
- C. Cao, , Frontiers in Energy Research, 2, pp.1~ (2014)