title: Light-assisted delithiation of lithium iron phosphate nanocrystals towards photo-rechargeable lithium ion batteries.
abstract: Recently, intensive efforts are dedicated to convert and store the solar energy in a single device. Herein, dye-synthesized solar cell technology is combined with lithium-ion materials to investigate light-assisted battery charging. In particular we report the direct photo-oxidation of lithium iron phosphate nanocrystals in the presence of a dye as a hybrid photo-cathode in a two-electrode system, with lithium metal as anode and lithium hexafluorophosphate in carbonate-based electrolyte; a configuration corresponding to lithium ion battery charging. Dye-sensitization generates electron-hole pairs with the holes aiding the delithiation of lithium iron phosphate at the cathode and electrons utilized in the formation of a solid electrolyte interface at the anode via oxygen reduction. Lithium iron phosphate acts effectively as a reversible redox agent for the regeneration of the dye. Our findings provide possibilities in advancing the design principles for photo-rechargeable lithium ion batteries.
authors.affiliation: Institute de Recherche d-Hydro-Québec (IREQ), 1800 Boulevard Lionel Boulet, Varennes, Quebec, Canada J3X 1S1.|Department of Mining and Materials Engineering, McGill University, Wong Building, 3610 University Street, Montreal, Quebec, Canada H3A OC5.
authors.forename: Andrea
authors.initials: A
authors.lastname: Paolella
authors.affiliation: Institute de Recherche d-Hydro-Québec (IREQ), 1800 Boulevard Lionel Boulet, Varennes, Quebec, Canada J3X 1S1.
authors.forename: Cyril
authors.initials: C
authors.lastname: Faure
authors.affiliation: IMEM-CNR, Parco Area delle Scienze 37/A, 43124 Parma, Italy.
authors.forename: Giovanni
authors.identifier: 0000-0001-6424-9102
authors.initials: G
authors.lastname: Bertoni
authors.affiliation: Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego 30, 16130 Genova, Italy.
authors.forename: Sergio
authors.initials: S
authors.lastname: Marras
authors.affiliation: Institute de Recherche d-Hydro-Québec (IREQ), 1800 Boulevard Lionel Boulet, Varennes, Quebec, Canada J3X 1S1.
authors.forename: Abdelbast
authors.initials: A
authors.lastname: Guerfi
authors.affiliation: Institute de Recherche d-Hydro-Québec (IREQ), 1800 Boulevard Lionel Boulet, Varennes, Quebec, Canada J3X 1S1.
authors.forename: Ali
authors.initials: A
authors.lastname: Darwiche
authors.affiliation: Institute de Recherche d-Hydro-Québec (IREQ), 1800 Boulevard Lionel Boulet, Varennes, Quebec, Canada J3X 1S1.
authors.forename: Pierre
authors.initials: P
authors.lastname: Hovington
authors.affiliation: Institute de Recherche d-Hydro-Québec (IREQ), 1800 Boulevard Lionel Boulet, Varennes, Quebec, Canada J3X 1S1.
authors.forename: Basile
authors.initials: B
authors.lastname: Commarieu
authors.affiliation: Department of Mining and Materials Engineering, McGill University, Wong Building, 3610 University Street, Montreal, Quebec, Canada H3A OC5.
authors.forename: Zhuoran
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego 30, 16130 Genova, Italy.
authors.forename: Mirko
authors.identifier: 0000-0002-2188-8059
authors.initials: M
authors.lastname: Prato
authors.affiliation: Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego 30, 16130 Genova, Italy.
authors.forename: Massimo
authors.initials: M
authors.lastname: Colombo
authors.affiliation: Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego 30, 16130 Genova, Italy.
authors.forename: Simone
authors.initials: S
authors.lastname: Monaco
authors.affiliation: Institute de Recherche d-Hydro-Québec (IREQ), 1800 Boulevard Lionel Boulet, Varennes, Quebec, Canada J3X 1S1.
authors.forename: Wen
authors.initials: W
authors.lastname: Zhu
authors.affiliation: Institute de Recherche d-Hydro-Québec (IREQ), 1800 Boulevard Lionel Boulet, Varennes, Quebec, Canada J3X 1S1.
authors.forename: Zimin
authors.initials: Z
authors.lastname: Feng
authors.affiliation: Institute de Recherche d-Hydro-Québec (IREQ), 1800 Boulevard Lionel Boulet, Varennes, Quebec, Canada J3X 1S1.
authors.forename: Ashok
authors.initials: A
authors.lastname: Vijh
authors.affiliation: Institute for Manufacturing, Department of Engineering, University of Cambridge, 17 Charles Babbage Road, Cambridge CB3 0FS, UK.
authors.forename: Chandramohan
authors.initials: C
authors.lastname: George
authors.affiliation: Department of Mining and Materials Engineering, McGill University, Wong Building, 3610 University Street, Montreal, Quebec, Canada H3A OC5.
authors.forename: George P
authors.initials: GP
authors.lastname: Demopoulos
authors.affiliation: Cicenergigune Parque Tecnologico C/Albert Einstein 48 CP, 01510 Minano (Alava), Spain.
authors.forename: Michel
authors.initials: M
authors.lastname: Armand
authors.affiliation: Institute de Recherche d-Hydro-Québec (IREQ), 1800 Boulevard Lionel Boulet, Varennes, Quebec, Canada J3X 1S1.
authors.forename: Karim
authors.identifier: 0000-0002-4201-7746
authors.initials: K
authors.lastname: Zaghib