Beyond Divalent Copper: A Redox Couple for Sodium Ion Battery Cathode Materials. (19th March 2015)

• Record Type: Journal Article
• Authors: Mason, Chad W.; Lange, Felix; Saravanan, Kuppan; Lin, Feng; Nordlund, Dennis
• Is Part Of: ECS Electrochemistry Letters. Volume 4:Number 5(2015)
• Page Start: A41
• Page End: A44
• Publication Date: 2015-03-19
• Subjects: copper redox couple -- Cu3+ -- layered oxides -- P2 oxides -- sodium ion batteries
• DOI: 10.1149/2.0041505eel
• Languages: English
• ISSNs: 2162-8726

Abstract

Abstract : A P2-layered oxide using copper as the active redox metal has been discovered. It has a composition of Na⅔ Cu⅓ Mn⅔ O2, and can withstand a thousand cycles, maintaining 61% of its original capacity. We demonstrate that copper can enable not only high voltage, but also excellent stability. This work opens up a new avenue of oxide design for high energy, cost effective battery systems.