journal article·2023-07

Revealing Structural Insights of Solid Electrolyte Interphase in High‐Concentrated Non‐Flammable Electrolyte for Li Metal Batteries by Cryo‐TEM

Qing Zhang, Chuan Zhou, Menghao Li, Yuanmin Zhu, Xianbin Wei, Shaocheng Shen, Zongwei Ji, Guangfu Luo, Yifeng Cheng, Xuming Yang, Zhijie Wang, Lingfeng Zou, Lin Zeng, Junhao Lin, Lei Li, Joseph S. Francisco, Meng Gu

Small· Volume 19· Issue 28
Publisher page

Abstract

Abstract High‐concentrated non‐flammable electrolytes (HCNFE) in lithium metal batteries prevent thermal runaway accidents, but the microstructure of their solid electrolyte interphase (SEI) remains largely unexplored, due to the lack of direct imaging tools. Herein, cryo‐HRTEM is applied to directly visualize the native state of SEI at the atomic scale. In HCNFE, SEI has a uniform laminated crystalline‐amorphous structure that can prevent further reaction between the electrolyte and lithium. The inorganic SEI component, Li2S2O7, is precisely identified by cryo‐HRTEM. Density functional theory (DFT) calculations demonstrate that the final Li2S2O7 phase has suitable natural transmission channels for Li‐ion diffusion and excellent ionic conductivity of 1.2 × 10‐5 S cm‐1.
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Research context

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Thermal Expansion and Ionic Conductivity

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Science and Engineering Southern University of Science and Technology (SUSTech) Shenzhen 518055 P. R. China

Department of Mechanical and Energy Engineering Southern University of Science and Technology (SUSTech) Shenzhen 518055 P. R. China

School of Materials Science and Engineering Dongguan University of Technology Dongguan 523808 P. R. China

Department of Chemistry Mississippi State University 75 B. S. Hood Rd Mississippi State MS 39762 USA

Guangdong Provincial Key Laboratory of Computational Science and Material Design Southern University of Science and Technology Shenzhen 518055 P. R. China

Department of Applied Physics The Hong Kong Polytechnic University Hung Hom, Kowloon Hong Kong 999077 P. R. China

Department of Earth and Environmental, Sciences and Department of Chemistry University of Pennsylvania Philadelphia PA 19104 USA

Funding

National Natural Science Foundation of China

References (32)

Show source-provided references
1. 10.1038/s41560-019-0338-x10.1038/s41560-019-0338-x ↗
2. 10.1038/nnano.2017.1610.1038/nnano.2017.16 ↗
3. 10.1038/s41560-017-0033-810.1038/s41560-017-0033-8 ↗
4. 10.1038/s41560-019-0336-z10.1038/s41560-019-0336-z ↗
5. 10.1126/sciadv.aas982010.1126/sciadv.aas9820 ↗
6. 10.1021/acs.chemrev.7b0011510.1021/acs.chemrev.7b00115 ↗
7. 10.1038/s41560-018-0196-y10.1038/s41560-018-0196-y ↗
8. 10.1021/acs.nanolett.7b0360610.1021/acs.nanolett.7b03606 ↗
9. 10.1038/s41560-019-0464-510.1038/s41560-019-0464-5 ↗
10. 10.1038/s41586-018-0397-310.1038/s41586-018-0397-3 ↗
11. 10.1038/s41560-019-0413-310.1038/s41560-019-0413-3 ↗
12. 10.1038/s41586-019-1481-z10.1038/s41586-019-1481-z ↗
13. 10.1038/s41563-020-0729-110.1038/s41563-020-0729-1 ↗
14. 10.1002/adma.20210040410.1002/adma.202100404 ↗
15. 10.1002/adfm.20200241410.1002/adfm.202002414 ↗
16. 10.1149/1.314872110.1149/1.3148721 ↗
17. 10.1038/nenergy.2017.1210.1038/nenergy.2017.12 ↗
18. 10.1039/C8EE02601G10.1039/C8EE02601G ↗
19. 10.1524/ncrs.2013.008410.1524/ncrs.2013.0084 ↗
20. 10.1038/sdata.2015.910.1038/sdata.2015.9 ↗
21. 10.1088/0953-8984/11/46/30310.1088/0953-8984/11/46/303 ↗
22. 10.1107/S056774086900560710.1107/S0567740869005607 ↗
23. 10.1021/ja412807w10.1021/ja412807w ↗
24. 10.1524/zpch.2009.608610.1524/zpch.2009.6086 ↗
25. 10.1126/science.aam601410.1126/science.aam6014 ↗
26. 10.1021/acs.nanolett.9b0411110.1021/acs.nanolett.9b04111 ↗
27. 10.1002/adma.20200022310.1002/adma.202000223 ↗
28. 10.1002/anie.20220668210.1002/anie.202206682 ↗
29. 10.1038/ncomms843610.1038/ncomms8436 ↗
30. 10.1021/acs.nanolett.2c0061610.1021/acs.nanolett.2c00616 ↗
31. 10.1126/science.125381010.1126/science.1253810 ↗
32. 10.1038/s41524-017-0060-910.1038/s41524-017-0060-9 ↗