Nano One Materials Corp (NANO)

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I found this today about lithium batteries - of interest:

New Lithium Metal Polymer Solid State Battery for an Ultrahigh Energy: Nano C-LiFePO4 versus Nano Li1.2V3O8

P. Hovington †, M. Lagacé †, A. Guerfi †, P. Bouchard †, A. Mauger ‡, C. M. Julien §, M. Armand ?, and K. Zaghib *†

† Institut de Recherche dHydro-Québec (IREQ), 1800 Bd Lionel-Boulet, Varennes, Quebec J3X 1S1 Canada
‡ Sorbonne Universités, UPMC Univ Paris 06, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), CNRS UMR 7590, 4 place Jussieu, F-75005 Paris,France
§ Sorbonne Universités, UPMC Univ Paris 06, Physicochimie des Electrolytes et Nanosystèmes Interfaciaux (PHENIX), CNRS UMR 8234, 4 place Jussieu, F-75005 Paris, France
? CIC Energigune, Parque Tecnologico de Alava, Albert Einstein 48, Ed. CIC, 01510 Miñano, Spain

Nano Lett., Article ASAP
DOI: 10.1021/acs.nanolett.5b00326
Publication Date (Web): February 25, 2015
Copyright © 2015 American Chemical Society
*E-mail: Zaghib.karim@ireq ca.

Abstract


Novel lithium metal polymer solid state batteries with nano C-LiFePO4 and nano Li1.2V3O8 counter-electrodes (average particle size 200 nm) were studied for the first time by in situ SEM and impedance during cycling. The kinetics of Li-motion during cycling is analyzed self-consistently together with the electrochemical properties. We show that the cycling life of the nano Li1.2V3O8 is limited by the dissolution of the vanadium in the electrolyte, which explains the choice of nano C-LiFePO4 (1300 cycles at 100% DOD): with this olivine, no dissolution is observed. In combination with lithium metal, at high loading and with a stable SEI an ultrahigh energy density battery was thus newly developed in our laboratory.


Keywords: Lithium metal polymer battery; in situ SEM; nano C-LiFePO4; nano Li1.2V3O8

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