The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index.
Decomposition of LiPF6in High Energy Lithium-Ion Batteries Studied with Online Electrochemical Mass Spectrometry
Open accessAbstract
The chemical and electrochemical instabilities of LiPF 6 in carbonate electrolytes for Li-ion batteries were studied with online electrochemical mass spectrometry (OEMS). Decomposition of carbonate electrolytes based on LiPF 6 eventually results in the formation of POF 3 , which is readily detected and followed in situ during operation of Li-rich HE-NCM-based Li-ion cells. Electrode potentials above ∼4.2 V leads to carbonate solvent oxidation and presumably the formation of ROH species, which subsequently hydrolyze the LiPF 6 salt and initiate a thermally activated autocatalytic electrolyte decomposition cycle involving POF 3 as a reactive intermediate. Activation of the Li 2 MnO 3 domains of the Li-rich cathode contributes along with electrolyte and separator impurities to further POF 3 generation. Electrode potentials below ∼2.5 V vs. Li + /Li impede POF 3 formation and presumably also further electrolyte decomposition by scavenging reactive intermediate species. As a result, much less POF 3 gas was detected upon the 2 nd charge when using Li metal counter electrode, contrary to delithiated LiFePO 4 . In situ OEMS confirm that the parasitic reactions involving LiPF 6 constitute an intricate reaction scheme, but more importantly, provide further evidence about what the components of this scheme are and how these may interact with each other.
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Cites
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Decomposition Reactions of Anode Solid Electrolyte Interphase (SEI) Components with LiPF6
Parimalam, B. S., MacIntosh, A. D., Kadam, R., & Lucht, B. L. (2017) · The Journal of Physical Chemistry C · doi:10.1021/acs.jpcc.7b08433 · Cited by 371
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Schmidt, L., Hankins, K., Bläubaum, L., Gerasimov, M., & Krewer, U. (2025) · Chemical Science · doi:10.1039/d4sc08105f · Cited by 25
Metadata
- Authors
- Guéguen, A., Streich, D., He, M., Mendez, M., Chesneau, F. F., Novák, P., & Berg, E. J.
- Venue
- Journal of The Electrochemical Society
- Publisher
- The Electrochemical Society
- Published
- 2016
- Volume
- 163
- Issue
- 6
- Pages
- A1095-A1100
- ISSN
- 0013-4651 (ISSN-L)
- 1945-7111
- OpenAlex
- W2322674623
- Cited by
- 265
- References
- 28
- FWCI
- 11.43
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Guéguen, A., Streich, D., He, M., Mendez, M., Chesneau, F. F., Novák, P., & Berg, E. J. (2016). Decomposition of LiPF6in High Energy Lithium-Ion Batteries Studied with Online Electrochemical Mass Spectrometry. Journal of The Electrochemical Society. https://doi.org/10.1149/2.0981606jes
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