One-pot aprotic solvent-enabled synthesis of superionic Li-argyrodite solid electrolyte
Young Jin Heo, Seung Deok Seo, Suk Ho Hwang, Sun Hee Choi, Dong Wan Kim
School of Civil, Environmental and Architectural Engineering
Li-argyrodite phase Li6PS5Cl is a promising solid electrolyte (SE) with potential applications in all-solid-state batteries (ASSBs). Conventional SE synthesis methods such as high-energy ball-milling and solid-state synthesis require a significant amount of energy. Consequently, in recent years, several studies have been conducted on developing liquid phase methods for mass-producing SEs. One such liquid phase method uses tetrahydrofuran (THF, an aprotic solvent) and ethanol (EtOH, a protic solvent) to synthesize Li6PS5Cl. However, the synthesized SE contains impurities that are generated by reactions between EtOH and PS43−. In this study, we present a novel one-pot liquid phase method for synthesizing Li6PS5Cl using THF. The synthesized SE had a high ionic conductivity (2.03 mS·cm−1) and low electronic conductivity (7.44 × 10−8 S·cm−1). Notably, it had few impurities and was essentially composed of a single phase. Furthermore, an ASSB cell composed of LiNbO3-coated LiNi0.6Mn0.2CoO2 (NMC622)/Li6PS5Cl/Li-In, which contained the synthesized SE, exhibited a high discharge capacity of 156 mAh·g−1. Therefore, the liquid phase method proposed herein can be used to synthesize SEs, and can help realize mass production and commercialization.
International Journal of Energy Research
https://doi.org/10.1002/er.8324
Published - 2022 Oct 10
Li-argyrodite
all-solid-state lithium batteries
liquid-phase synthesis
one-pot process
sulfide solid electrolyte
Nuclear Energy and Engineering
Fuel Technology
Energy Engineering and Power Technology
10.1002/er.8324
Dive into the research topics of 'One-pot aprotic solvent-enabled synthesis of superionic Li-argyrodite solid electrolyte'. Together they form a unique fingerprint.
Solid-State Batteries Engineering & Materials Science 49%
Liquids Engineering & Materials Science 37%
Ionic conductivity Engineering & Materials Science 21%
Ball milling Engineering & Materials Science 18%
Ethanol Engineering & Materials Science 14%
Heo, Y. J., Seo, S. D., Hwang, S. H., Choi, S. H., & Kim, D. W. (2022). One-pot aprotic solvent-enabled synthesis of superionic Li-argyrodite solid electrolyte. International Journal of Energy Research, 46(12), 17644-17653. https://doi.org/10.1002/er.8324
One-pot aprotic solvent-enabled synthesis of superionic Li-argyrodite solid electrolyte. / Heo, Young Jin; Seo, Seung Deok; Hwang, Suk Ho et al.
In: International Journal of Energy Research, Vol. 46, No. 12, 10.10.2022, p. 17644-17653.
Heo, YJ, Seo, SD, Hwang, SH, Choi, SH & Kim, DW 2022, 'One-pot aprotic solvent-enabled synthesis of superionic Li-argyrodite solid electrolyte', International Journal of Energy Research, vol. 46, no. 12, pp. 17644-17653. https://doi.org/10.1002/er.8324
Heo YJ, Seo SD, Hwang SH, Choi SH, Kim DW. One-pot aprotic solvent-enabled synthesis of superionic Li-argyrodite solid electrolyte. International Journal of Energy Research. 2022 Oct 10;46(12):17644-17653. doi: 10.1002/er.8324
Heo, Young Jin ; Seo, Seung Deok ; Hwang, Suk Ho et al. / One-pot aprotic solvent-enabled synthesis of superionic Li-argyrodite solid electrolyte. In: International Journal of Energy Research. 2022 ; Vol. 46, No. 12. pp. 17644-17653.
@article{558b94d9e37e41f888d5759bae58871e,
title = "One-pot aprotic solvent-enabled synthesis of superionic Li-argyrodite solid electrolyte",
abstract = "Li-argyrodite phase Li6PS5Cl is a promising solid electrolyte (SE) with potential applications in all-solid-state batteries (ASSBs). Conventional SE synthesis methods such as high-energy ball-milling and solid-state synthesis require a significant amount of energy. Consequently, in recent years, several studies have been conducted on developing liquid phase methods for mass-producing SEs. One such liquid phase method uses tetrahydrofuran (THF, an aprotic solvent) and ethanol (EtOH, a protic solvent) to synthesize Li6PS5Cl. However, the synthesized SE contains impurities that are generated by reactions between EtOH and PS43−. In this study, we present a novel one-pot liquid phase method for synthesizing Li6PS5Cl using THF. The synthesized SE had a high ionic conductivity (2.03 mS·cm−1) and low electronic conductivity (7.44 × 10−8 S·cm−1). Notably, it had few impurities and was essentially composed of a single phase. Furthermore, an ASSB cell composed of LiNbO3-coated LiNi0.6Mn0.2CoO2 (NMC622)/Li6PS5Cl/Li-In, which contained the synthesized SE, exhibited a high discharge capacity of 156 mAh·g−1. Therefore, the liquid phase method proposed herein can be used to synthesize SEs, and can help realize mass production and commercialization.",
keywords = "Li-argyrodite, all-solid-state lithium batteries, liquid-phase synthesis, one-pot process, sulfide solid electrolyte",
author = "Heo, {Young Jin} and Seo, {Seung Deok} and Hwang, {Suk Ho} and Choi, {Sun Hee} and Kim, {Dong Wan}",
note = "Funding Information: This work was supported by a Korea University Grant and the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT, and Future Planning [NRF‐2022R1A2C3003319 and 2018M3D1A1058744]. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF‐2020R1A6A1A03045059). Funding Information: Ministry of Science, ICT, and Future Planning, Grant/Award Numbers: 2018M3D1A1058744, 2022R1A2C3003319; National Research Foundation of Korea; Korea University; Ministry of Education, Grant/Award Number: 2020R1A6A1A03045059 Funding information Publisher Copyright: {\textcopyright} 2022 John Wiley & Sons Ltd.",
doi = "10.1002/er.8324",
journal = "International Journal of Energy Research",
publisher = "John Wiley and Sons Ltd",
T1 - One-pot aprotic solvent-enabled synthesis of superionic Li-argyrodite solid electrolyte
AU - Heo, Young Jin
AU - Seo, Seung Deok
AU - Hwang, Suk Ho
AU - Choi, Sun Hee
AU - Kim, Dong Wan
N1 - Funding Information: This work was supported by a Korea University Grant and the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT, and Future Planning [NRF‐2022R1A2C3003319 and 2018M3D1A1058744]. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF‐2020R1A6A1A03045059). Funding Information: Ministry of Science, ICT, and Future Planning, Grant/Award Numbers: 2018M3D1A1058744, 2022R1A2C3003319; National Research Foundation of Korea; Korea University; Ministry of Education, Grant/Award Number: 2020R1A6A1A03045059 Funding information Publisher Copyright: © 2022 John Wiley & Sons Ltd.
N2 - Li-argyrodite phase Li6PS5Cl is a promising solid electrolyte (SE) with potential applications in all-solid-state batteries (ASSBs). Conventional SE synthesis methods such as high-energy ball-milling and solid-state synthesis require a significant amount of energy. Consequently, in recent years, several studies have been conducted on developing liquid phase methods for mass-producing SEs. One such liquid phase method uses tetrahydrofuran (THF, an aprotic solvent) and ethanol (EtOH, a protic solvent) to synthesize Li6PS5Cl. However, the synthesized SE contains impurities that are generated by reactions between EtOH and PS43−. In this study, we present a novel one-pot liquid phase method for synthesizing Li6PS5Cl using THF. The synthesized SE had a high ionic conductivity (2.03 mS·cm−1) and low electronic conductivity (7.44 × 10−8 S·cm−1). Notably, it had few impurities and was essentially composed of a single phase. Furthermore, an ASSB cell composed of LiNbO3-coated LiNi0.6Mn0.2CoO2 (NMC622)/Li6PS5Cl/Li-In, which contained the synthesized SE, exhibited a high discharge capacity of 156 mAh·g−1. Therefore, the liquid phase method proposed herein can be used to synthesize SEs, and can help realize mass production and commercialization.
AB - Li-argyrodite phase Li6PS5Cl is a promising solid electrolyte (SE) with potential applications in all-solid-state batteries (ASSBs). Conventional SE synthesis methods such as high-energy ball-milling and solid-state synthesis require a significant amount of energy. Consequently, in recent years, several studies have been conducted on developing liquid phase methods for mass-producing SEs. One such liquid phase method uses tetrahydrofuran (THF, an aprotic solvent) and ethanol (EtOH, a protic solvent) to synthesize Li6PS5Cl. However, the synthesized SE contains impurities that are generated by reactions between EtOH and PS43−. In this study, we present a novel one-pot liquid phase method for synthesizing Li6PS5Cl using THF. The synthesized SE had a high ionic conductivity (2.03 mS·cm−1) and low electronic conductivity (7.44 × 10−8 S·cm−1). Notably, it had few impurities and was essentially composed of a single phase. Furthermore, an ASSB cell composed of LiNbO3-coated LiNi0.6Mn0.2CoO2 (NMC622)/Li6PS5Cl/Li-In, which contained the synthesized SE, exhibited a high discharge capacity of 156 mAh·g−1. Therefore, the liquid phase method proposed herein can be used to synthesize SEs, and can help realize mass production and commercialization.
KW - Li-argyrodite
KW - all-solid-state lithium batteries
KW - liquid-phase synthesis
KW - one-pot process
KW - sulfide solid electrolyte
U2 - 10.1002/er.8324
DO - 10.1002/er.8324
JO - International Journal of Energy Research
JF - International Journal of Energy Research