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30.01.2020
11827-01
06.11.2018
Materials – Coating 07293-01
06.11.2018
Materials – Coating 10581-01
06.11.2018
Chemistry / Environment 08758-01
06.11.2018
11127-01
06.11.2018
Environment and Energy 11107-01
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02508-03
French priority patent application n°0955233 filed on July, 27, 2009 and entitled “Fluorosulfates, leur préparation, leur utilisation comme matériau d’électrode”
Michel ARMAND
Nadir RECHAM
Jean-Marie TARASCON
Exclusive or non-exclusive licenses, Collaborative agreement
Laboratoire de Réactivité et Chimie des Solides, (LRCS, UMR 6007) Amiens, France.
Since the introduction of the first Li-ion battery by Sony in the nineties, demands for batteries with enhanced performances are increasing. LIB are widely used in laptop, cellular phones, electronic products (cameras, mp3 readers,…). They also penetrating the market of power tools and are studied also as candidates in hybrid vehicles.
Conventional materials for cathodes are oxides such as LCO, NMC or NCA, spinelles phases or olivine structures (LFP).
Sulfate-based materials are interesting as they should theoritically have higher potential than phosphate-based materials.
The invention described a new family of fluoro sulfate materials having a distorded tavorite structure and corresponding to Li/NaMSO4F. In addition their synthesis is also described and claimed.
Members of this family are LiFeSO4F, LiCoSO4F, LiNiSO4F, LiFe1-yMnySO4F, NaFeSO4F, NaCoSO4F,…
– Easy synthesis (fast and economic)
– Good electrochemical performances (one inserted lithium by fluorinated oxyanion unit)
Exemples of possible synthesis :
LiFePO4, Na2FePO4F, Na2MnPO4F, Na2(FexMn1-x)PO4F, LiFePO4F, NaFeSO4F, LiTiPO4F, LiFeSO4F, LiCoSO4F, LiNiSO4F, LiFe1-yMnySO4F, FeSO4F, …
Synthesis were made at a laboratory scale and electrochemical tests were done on the obtained powders.
For further information, please contact us (Ref 02508-03)
30.01.2020
11827-01
06.11.2018
Materials – Coating 07293-01
06.11.2018
Materials – Coating 10581-01
06.11.2018
Chemistry / Environment 08758-01
06.11.2018
11127-01
06.11.2018
Environment and Energy 11107-01