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Fuqiang Huang
Shanghai Institute of Ceramics
Corresponding Author
ORCiD: https://orcid.org/0000-0003-0526-5473
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Hard carbons (HC) as an anode material in sodium ion batteries, present enhanced electrochemical performances in ether-based electrolytes, making them promising potential in practical applications. However, the underlying mechanism behind the excellent performances is still in question. Here, ex-situ nuclear magnetic resonance, gas chromatography-mass spectrometry and high-resolution transmission electron microscope were used to clarify the insightful chemistry of ether- and ester-based electrolytes in terms of solid-electrolyte-interphase (SEI) on hard carbons. The results confirm the marked electrolyte decomposition and the formation of a SEI film in EC/DEC, but no SEI film in the case of diglyme. In-situ electrochemical quartz crystal microbalance and molecule dynamics support that ether molecules have been co-intercalated into hard carbons likely. To our knowledge, these results are reported for the first time. It might be very useful for us to rational design advanced electrode materials based HC in future.
Keywords
batteries, energy storage, hard carbons (HC), Lithium-ion batteries (LIBs)
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This is a list of supplementary files associated with this preprint. Click to download.
- SI.docx
Revisit Electrolyte Chemistry of Hard Carbon in Ether for Na Storage
- GraphicalAbstract.pdf
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A new preprint design is coming!
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This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Article
Fuqiang Huang
Shanghai Institute of Ceramics
Corresponding Author
ORCiD: https://orcid.org/0000-0003-0526-5473
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 02 Feb, 2021
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Hard carbons (HC) as an anode material in sodium ion batteries, present enhanced electrochemical performances in ether-based electrolytes, making them promising potential in practical applications. However, the underlying mechanism behind the excellent performances is still in question. Here, ex-situ nuclear magnetic resonance, gas chromatography-mass spectrometry and high-resolution transmission electron microscope were used to clarify the insightful chemistry of ether- and ester-based electrolytes in terms of solid-electrolyte-interphase (SEI) on hard carbons. The results confirm the marked electrolyte decomposition and the formation of a SEI film in EC/DEC, but no SEI film in the case of diglyme. In-situ electrochemical quartz crystal microbalance and molecule dynamics support that ether molecules have been co-intercalated into hard carbons likely. To our knowledge, these results are reported for the first time. It might be very useful for us to rational design advanced electrode materials based HC in future.
Figure 1
Figure 2
Figure 3
Figure 4
There is NO Competing Interest.
This is a list of supplementary files associated with this preprint. Click to download.
- SI.docx
Revisit Electrolyte Chemistry of Hard Carbon in Ether for Na Storage
- GraphicalAbstract.pdf
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