PhD position - K-ion batteries, towards a full system without any critical raw materials

DETALLES DE LA OPORTUNIDAD

Recompensa total

0 $

Universidad Estatal

CEA Tech

Área

Europa Oriental

País anfitrión

Francia

Fecha límite

31 oct. 2021

Nivel de estudio

Doctorado

Tipo de oportunidad

Doctor

Especialidades

Ingeniería , Química

Oportunidad de financiación

No financiación

Países elegibles

Esta oportunidad está destinada a todos los países

Región elegible

Todas las regiones

SL-DRT-21-0524

RESEARCH FIELD

Electrochemical energy storage incl. batteries for energy transition

ABSTRACT

Classic Li-ion batteries are composed of a graphite anode and a cathode containing a lithiated layered oxide (formula LiNixMnyCozO2). The development and the generalization of the electric automobile market will generate stress on certain chemical elements source, especially for lithium, nickel and cobalt. In addition, the production method consumes a lot of energy (multiple calcinations) and several solvents/products used are not respectful of the environment (NMP, ammonia).The thesis aims to develop a battery technology based on potassium. We will pay attention not to use any critical element in order to significantly reduce the ecological footprint. In terms of performance, potassium has a potential close to lithium, which suggests that high-energy batteries can be manufactured. Some potassium cathode materials have theoretical capacities of 155 mAh/g at a potential close to 4 V, which makes the technology competitive with conventional Li-ion batteries. The final target of the PhD thesis is to optimize and validate the technology in a complete system. The student will optimize the synthesis of the cathode material, the anode, the electrolyte in order to obtain an efficient system.