Introduction

The IEA “COMPEX” (Towards exotic compositions of transition metal oxides used as positive electrode materials for Li or Na batteries) is developed in partnership between the Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) UMR-CNRS 5026, Bordeaux, France and the University of New South Wales, Sydney, Australia. It addresses structural changes at atomic scale during recycling of Li or Na batteries.

Missions and research themes

This IEA project focusses mainly on 4d transition metals exotic compositions that have been poorly studied so far. Our study is focused on structural changes occurring during electrochemical intercalation and deintercalation of alkaline ions in Molybdenum (O3-Li_xMoO₂ et O3-Na_xMoO₂) and Rhodium systems (O3-Na_xRhO₂ et P2-Na_xRhO₂).

institutions and laboratories involved

France

• Coordination : Associate Prof. Marie Guignard, ICMCB, UMR-CNRS 5026, Bordeaux.

Australia

• Associate Prof. Neeraj SHARMA, University of New South Wales, Sydney.
  

Contour tracing of X-Ray diffraction recording upon electrochemical deintercalation of Na in the P2-Na_xRhO2 system.