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Grissa, R., Abramova, A., Tambio, S.-J., Lecuyer, M., Deschamps, M., Fernandez, V., Greneche, J.-M., Guyomard, D., Lestriez, B. & Moreau, P. (2019) Thermomechanical Polymer Binder Reactivity with Positive Active Materials for Li Metal Polymer and Li-Ion Batteries: An XPS and XPS Imaging Study. Acs Applied Materials & Interfaces, 11 18368–18376. 
Added by: Richard Baschera (2019-07-15 14:27:14)   Last edited by: Richard Baschera (2019-07-17 09:40:28)
Type de référence: Article
DOI: 10.1021/acsami.9b01761
Clé BibTeX: Grissa2019
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Catégories: IMN, ST2E
Créateurs: Abramova, Deschamps, Fernandez, Greneche, Grissa, Guyomard, Lecuyer, Lestriez, Moreau, Tambio
Collection: Acs Applied Materials & Interfaces
Consultations : 3/167
Indice de consultation : 1%
Indice de popularité : 0.25%
Résumé     
The lithium and lithium-ion battery electrode chemical stability in the pristine state has rarely been considered as a function of the binder choice and the electrode processing. In this work, X-ray photoelectron spectroscopy (XPS) and XPS imaging analyses associated with complementary Mossbauer spectroscopy are used in order to study the chemical stability of two pristine positive electrodes: (i) an extruded LiFePO4-based electrode formulated with different polymer matrices [polyethylene oxide and a polyvinylidene difluoride (PVdF)] and processed at different temperatures (90 and 130 degrees C, respectively) and (ii) a Li[Ni0.5Mn0.3Co0.2]O-2 (NMC)-based electrode processed by tape-casting, followed by a mild or heavy calendering treatment. These analyses have allowed the identification of reactivity mechanisms at the interface of the active material and the polymer in the case of PVdF-based electrodes.
  
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