Electrochemical Study of a CuO–Carbon Conversion Anode in Ionic Liquid Electrolyte for Application in Li‐Ion Batteries. Issue 6 (9th March 2016)

• Record Type: Journal Article
• Authors: Verrelli, Roberta; Laszczynski, Nina; Passerini, Stefano; Hassoun, Jusef
• Is Part Of: Energy technology. Volume 4:Issue 6(2016:Jun.)
• Page Start: 700
• Page End: 705
• Publication Date: 2016-03-09
• Subjects: carbon -- copper oxide -- electrochemistry -- ionic liquids -- lithium-ion batteries; Energy development -- Periodicals; Power resources -- Periodicals; 333.79
• DOI: 10.1002/ente.201500503
• Languages: English
• ISSNs: 2194-4288

Abstract

Abstract: A CuO–Carbon anode storing lithium through a conversion mechanism is electrochemically studied in cells employing Pyr14 TFSI–LiTFSI electrolyte [Pyr14 : N‐butyl‐N‐methylpyrrolidinium], [TFSI: bis(trifluoromethanesulfonyl) imide]. The electrode delivers a specific capacity as high as 580 mAh g −1 with a coulombic efficiency exceeding 98 %. The combination of CuO–carbon with a high‐voltage LiNi0.5 Mn1.5 O4 cathode in the ionic liquid electrolyte produces a Li‐ion battery with an average operating voltage of 3 V and specific capacity of approximately 120 mAh g −1 . The cell, employing easily‐prepared electrodes and a safe ionic liquid electrolyte, represents a good candidate for use in sustainable power sources. Abstract : Better batteries : An advanced lithium ion battery efficiently combines a high‐voltage LiNi0.5 Mn1.5 O4 cathode, a low‐cost CuO–MCMB conversion anode and a very safe LiTFSI, Pyr14 TFSI ionic liquid electrolyte. The electrode delivers a high specific capacity with coulombic efficiency exceeding 98 %. The cell, employing easily‐prepared electrodes and safe ionic liquid electrolyte, represents a candidate for sustainable power sources.