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Lecuyer, M., Deschamps, M., Guyomard, D., Gaubicher, J. & Poizot, P. (2021) Electrochemical Assessment of Indigo Carmine Dye in Lithium Metal Polymer Technology. Molecules, 26 3079. 
Added by: Richard Baschera (2021-06-25 08:22:46)   Last edited by: Richard Baschera (2021-06-25 08:27:21)
Type de référence: Article
DOI: 10.3390/molecules26113079
Clé BibTeX: Lecuyer2021
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Catégories: ST2E
Mots-clés: indigo carmine, intercalation, LMP (R) technology, Organic battery, positive-electrode, Solid polymer electrolyte, solid state battery
Créateurs: Deschamps, Gaubicher, Guyomard, Lecuyer, Poizot
Collection: Molecules
Consultations : 2/681
Indice de consultation : 12%
Indice de popularité : 3%
Lithium metal batteries are inspiring renewed interest in the battery community because the most advanced designs of Li-ion batteries could be on the verge of reaching their theoretical specific energy density values. Among the investigated alternative technologies for electrochemical storage, the all-solid-state Li battery concept based on the implementation of dry solid polymer electrolytes appears as a mature technology not only to power full electric vehicles but also to provide solutions for stationary storage applications. With an effective marketing started in 2011, BlueSolutions keeps developing further the so-called lithium metal polymer batteries based on this technology. The present study reports the electrochemical performance of such Li metal batteries involving indigo carmine, a cheap and renewable electroactive non-soluble organic salt, at the positive electrode. Our results demonstrate that this active material was able to reversibly insert two Li at an average potential of approximate to 2.4 V vs. Li+/Li with however, a relatively poor stability upon cycling. Post-mortem analyses revealed the poisoning of the Li electrode by Na upon ion exchange reaction between the Na countercations of indigo carmine and the conducting salt. The use of thinner positive electrodes led to much better capacity retention while enabling the identification of two successive one-electron plateaus.
Place: Basel Publisher: Mdpi WOS:000660385600001
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