Skip to Main content Skip to Navigation
Journal articles

Decomposition of CoF3 during Battery Electrode Processing

Abstract : Metal fluorides are potential candidates as electrode materials for rechargeable batteries. During the electrode fabrication, however, thermal treatments can cause decomposition of thermally instable compounds. Here, we showed that during the electrode processing of CoF3, the carbon and PVDF additives act as a protective layer that prevents CoF3 to readily decompose into CoF2 (rutile). We found that instead, it decomposes into an intermediate phase with a corundum like structure featuring Co vacancies, i.e., Co1.26IICo0.16III□0.58F3 where □ represents the vacancies. The structural analysis was possible owing to the use of the pair distribution function.
Document type :
Journal articles
Complete list of metadata

Cited literature [19 references]  Display  Hide  Download

https://hal.sorbonne-universite.fr/hal-01656914
Contributor : Gestionnaire Hal-Upmc <>
Submitted on : Wednesday, December 6, 2017 - 11:03:39 AM
Last modification on : Wednesday, April 14, 2021 - 3:50:03 PM

File

Manuscript-revised.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01656914, version 1

Citation

Wei Li, Henri Groult, Olaf Borkiewicz, Damien Dambournet. Decomposition of CoF3 during Battery Electrode Processing. Journal of Fluorine Chemistry, Elsevier, 2017. ⟨hal-01656914⟩

Share

Metrics

Record views

282

Files downloads

293