High energy and power density TiO2 nanotube electrodes for single and complete lithium-ion batteries

• Published in: Journal of power sources Vol. 273; pp. 1182 - 1188
• Main Authors: PLYLAHAN, Nareerat, LETICHE, Manon, MAÏSSA KENZA SAMY BARR, ELLIS, Brian, MARIA, Sébastien, PHAN, Trang N. T, BLOCH, Emily, KNAUTH, Philippe, DJENIZIAN, Thierry
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier 01-01-2015
• Subjects: Applied sciences; Chemical Sciences; Direct energy conversion and energy accumulation; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Exact sciences and technology; Material chemistry; Power density; Titanium IV Oxides; Lithium ion batteries; Nanotube; Polymer solid electrolyte; Electrochemical polymerization; Electropolymerization; Electrodes; Polymer electrolyte; Self organization; Microequipment; Electrochemical reaction; Lithium-ion microbatteries; Deposition; Electrical characteristic; Polymer electrolytes; Self-organized titania nanotubes; Energy density; Secondary cell; Titanium Oxides; High power; High energy; Conformal deposition; Rocking chair batteries; Titanium oxide
• ISSN: 0378-7753; 1873-2755
• DOI: 10.1016/j.jpowsour.2014.09.152

The benefits of the conformal coating of polyethylene oxide (PEO)-based polymer electrolyte by the electropolymerization technique on titania nanotubes (TiO(2)nts) are highlighted. Due to the presence of polymer electrolyte coating the nanotubes, the capacity of the half cell is improved by 45% at 1 C compared to bare TiO2nts. The polymer-coated TiO2nts in the full cell deliver an average capacity of similar to 30 mu A h cm(-2) (120 mA h g(-1)) with LiNi0.5M1.5O4, similar to 25 mu A h cm(-2) (100 mA h g(-1)) with LiFePO4 and similar to 23 mu A h cm(-2) (90 mA h g(-1)) with LiCoO2, respectively during 50 cycles. (C) 2014 Elsevier B.V. All rights reserved.