Correlation between Charge−Discharge Behavior of Graphite and Solvation Structure of the Lithium Ion in Propylene Carbonate-Containing Electrolytes
Abstract
The charge−discharge behaviors of natural graphite in propylene carbonate (PC):dimethyl carbonate (DMC) mixed solutions were investigated after a solid electrolyte interface (SEI) was formed in an ethylene carbonate (EC)-based electrolyte. Electrolytes consisting of LiClO 4 /PC and PC:DMC (1:1 by vol) caused a continuous decomposition of solvents, which led to the exfoliation of graphite. On the other hand, LiClO 4 /PC:DMC (1:7 by vol) showed successful charge−discharge curves without the exfoliation of graphite. These results indicate that the mixing ratio of PC:DMC plays an important role in suppression of the exfoliation of a graphite electrode. Raman spectra of the electrolytes show that the solvation numbers of PC molecules per lithium ion differ drastically in PC:DMC (1:1 by vol) and PC:DMC (1:7 by vol) due to the selective solvation of PC molecules. These results indicate that the solvation number of PC molecules per lithium ion is an important factor in determining the charge−discharge behavior of graphite in PC-based electrolyte.
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Adding linear carbonate can increase the stability of propylene carbonate, and the stability increases with the content of the linear carbonate, attributed to the lower content of free propylene carbonate solvent.
“In addition, adding the linear carbonate can also increase the stability of PC and the stability also increases with the content of the linear carbonate, which is attributed to the lower content of free PC solvent [34].”
From Review on Low-Temperature Electrolytes for Lithium-Ion and Lithium Metal Batteries (2023) · cites this paper as [34]
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Electrolytes and Interphases in Li-Ion Batteries and Beyond
Xu, K. (2014) · Chemical Reviews · doi:10.1021/cr500003w · Cited by 5,566 · see citing works
Review on Low-Temperature Electrolytes for Lithium-Ion and Lithium Metal Batteries
Tan, S., Shadike, Z., Cai, X., Lin, R., Kludze, A., Borodin, O., Lucht, B. L., Wang, C., Hu, E., Xu, K., et al. (2023) · Electrochemical Energy Reviews · doi:10.1007/s41918-023-00199-1 · Cited by 118 · see citing works
“In addition, adding the linear carbonate can also increase the stability of PC and the stability also increases with the content of the linear carbonate, which is attributed to the lower content of free PC solvent [34].”
- Authors
- Yamada, Y., Koyama, Y., Abe, T., & Ogumi, Z.
- Affiliations
- Kyoto University (JP)
- Corresponding author
- Abe, Takeshi
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-05-21
- Volume
- 113
- Issue
- 20
- Pages
- 8948-8953
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2603607145
- Cited by
- 101
- References
- 0
- Citations by year
- 2026: 3 · 2025: 6 · 2024: 6 · 2023: 6 · 2022: 10 · 2021: 7 · 2020: 7 · 2019: 9 · 2018: 8 · 2017: 4 · 2016: 6 · 2015: 2 · 2014: 9 · 2013: 5 · 2012: 1
- FWCI
- 3.44
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The Journal of Physical Chemistry C (publishedVersion)
- Institutional Repositories DataBase (IRDB) (submittedVersion)
- Kyoto University Research Information Repository (Kyoto University) (submittedVersion)
- Funders
- Ministry of Education, Culture, Sports, Science and Technology
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advancements in Battery Materials
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Battery Materials and Technologies
- Physical Sciences › Engineering › Automotive Engineering › Advanced Battery Technologies Research
- Keywords
- natural graphite, propylene carbonate, dimethyl carbonate, lithium ion solvation, solvation number, graphite exfoliation, solid electrolyte interphase, LiClO4 electrolyte, solvent decomposition, lithium-ion battery electrodes
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