Tailoring Solution-Processable Li Argyrodites Li6+xP1-xMxS5I (M = Ge, Sn) and Their Microstructural Evolution Revealed by Cryo-TEM for All-Solid-State Batteries
Abstract
Owing to their high Li+ conductivities, mechanical sinterability, and solution processability, sulfide Li argyrodites have attracted much attention as enablers in the development of high-performance all-solid-state batteries with practicability. However, solution-processable Li argyrodites have been developed only for a composition of Li6PS5X (X = Cl, Br, I) with insufficiently high Li+ conductivities (~10–4 S cm–1). In this work, we report the highest Li+ conductivity of 0.54 mS cm–1 at 30 °C (Li6.5P0.5Ge0.5S5I) for solution-processable iodine-based Li argyrodites. Furthermore, a comparative investigation of three iodine-based argyrodites of unsubstituted and Ge- and Sn-substituted solution-processed Li6PS5I with varied heat-treatment temperature elucidates the effect of microstructural evolution on Li+ conductivity. Notably, local nanostructures consisting of argyrodite nanocrystallites in solution-processed Li6.5P0.5Ge0.5S5I have been directly captured by cryogenic transmission electron microscopy, which is a first for sulfide solid electrolyte materials. Specifically, the promising electrochemical performances of all-solid-state batteries at 30 °C employing LiCoO2 electrodes tailored by the infiltration of Li6.5P0.5Ge0.5S5I–ethanol solutions are successfully demonstrated.
- Authors:
-
- Hanyang Univ., Seoul (Korea, Republic of)
- Dongguk Univ., Seoul (Korea, Republic of)
- Ulsan National Institute of Science and Technology (UNIST), Ulsan (Korea, Republic of)
- UNIST Central Research Facilities (UCRF), Ulsan (Korea, Republic of)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); National Research Foundation of Korea (NRF); National Research Council of Science & Technology (NST)
- OSTI Identifier:
- 1642414
- Report Number(s):
- BNL-216186-2020-JAAM
Journal ID: ISSN 1530-6984
- Grant/Contract Number:
- SC0012704; NRF-2017M1A2A2044501; NRF-2018R1A2B600499; 2019R1C1C1009324
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nano Letters
- Additional Journal Information:
- Journal Volume: 20; Journal Issue: 6; Journal ID: ISSN 1530-6984
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; Solid-state batteries; solid electrolytes; cryo-TEM; sulfides; solution processes; electrodes; physical and chemical processes; electrical conductivity
Citation Formats
Song, Yong Bae, Kim, Dong Hyeon, Kwak, Hiram, Han, Daseul, Kang, Sujin, Lee, Jong Hoon, Bak, Seong-Min, Nam, Kyung-Wan, Lee, Hyun-Wook, and Jung, Yoon Seok. Tailoring Solution-Processable Li Argyrodites Li6+xP1-xMxS5I (M = Ge, Sn) and Their Microstructural Evolution Revealed by Cryo-TEM for All-Solid-State Batteries. United States: N. p., 2020.
Web. doi:10.1021/acs.nanolett.0c01028.
Song, Yong Bae, Kim, Dong Hyeon, Kwak, Hiram, Han, Daseul, Kang, Sujin, Lee, Jong Hoon, Bak, Seong-Min, Nam, Kyung-Wan, Lee, Hyun-Wook, & Jung, Yoon Seok. Tailoring Solution-Processable Li Argyrodites Li6+xP1-xMxS5I (M = Ge, Sn) and Their Microstructural Evolution Revealed by Cryo-TEM for All-Solid-State Batteries. United States. https://doi.org/10.1021/acs.nanolett.0c01028
Song, Yong Bae, Kim, Dong Hyeon, Kwak, Hiram, Han, Daseul, Kang, Sujin, Lee, Jong Hoon, Bak, Seong-Min, Nam, Kyung-Wan, Lee, Hyun-Wook, and Jung, Yoon Seok. Tue .
"Tailoring Solution-Processable Li Argyrodites Li6+xP1-xMxS5I (M = Ge, Sn) and Their Microstructural Evolution Revealed by Cryo-TEM for All-Solid-State Batteries". United States. https://doi.org/10.1021/acs.nanolett.0c01028. https://www.osti.gov/servlets/purl/1642414.
@article{osti_1642414,
title = {Tailoring Solution-Processable Li Argyrodites Li6+xP1-xMxS5I (M = Ge, Sn) and Their Microstructural Evolution Revealed by Cryo-TEM for All-Solid-State Batteries},
author = {Song, Yong Bae and Kim, Dong Hyeon and Kwak, Hiram and Han, Daseul and Kang, Sujin and Lee, Jong Hoon and Bak, Seong-Min and Nam, Kyung-Wan and Lee, Hyun-Wook and Jung, Yoon Seok},
abstractNote = {Owing to their high Li+ conductivities, mechanical sinterability, and solution processability, sulfide Li argyrodites have attracted much attention as enablers in the development of high-performance all-solid-state batteries with practicability. However, solution-processable Li argyrodites have been developed only for a composition of Li6PS5X (X = Cl, Br, I) with insufficiently high Li+ conductivities (~10–4 S cm–1). In this work, we report the highest Li+ conductivity of 0.54 mS cm–1 at 30 °C (Li6.5P0.5Ge0.5S5I) for solution-processable iodine-based Li argyrodites. Furthermore, a comparative investigation of three iodine-based argyrodites of unsubstituted and Ge- and Sn-substituted solution-processed Li6PS5I with varied heat-treatment temperature elucidates the effect of microstructural evolution on Li+ conductivity. Notably, local nanostructures consisting of argyrodite nanocrystallites in solution-processed Li6.5P0.5Ge0.5S5I have been directly captured by cryogenic transmission electron microscopy, which is a first for sulfide solid electrolyte materials. Specifically, the promising electrochemical performances of all-solid-state batteries at 30 °C employing LiCoO2 electrodes tailored by the infiltration of Li6.5P0.5Ge0.5S5I–ethanol solutions are successfully demonstrated.},
doi = {10.1021/acs.nanolett.0c01028},
journal = {Nano Letters},
number = 6,
volume = 20,
place = {United States},
year = {Tue May 05 00:00:00 EDT 2020},
month = {Tue May 05 00:00:00 EDT 2020}
}
Web of Science
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