General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
SL-DES-24-0610
Thesis topic details
Category
Technological challenges
Thesis topics
Development of new anode materials for potassium-ion batteries
Contract
Thèse
Job description
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, cobalt and copper. 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 without using any critical element in order to significantly decrease the ecological footprint.
The insertion of potassium ion inside the graphite structure has been reported as an advantage in front of Na-ion batteries. However, due to the potassium size, the graphite structure expands (60%) and can limit the batterie cycle life.
The final target of the PhD thesis is to solve this issu following two approches : 1/ Find the link beetween graphites specifications and the resulting electrochemical performances in order to select the best graphite grade 2/ Develop new anode materials for K-ion application.
University / doctoral school
Ingénierie - Matériaux - Environnement - Energétique - Procédés - Production (IMEP2)
Université Grenoble Alpes
Thesis topic location
Site
Grenoble
Requester
Position start date
01/09/2024
Person to be contacted by the applicant
PERALTA David david.peralta@cea.fr
CEA
DRT/DEHT//LM
Bureau C2/249
CEA-LITEN / DEHT / STB / LM
17, rue des Martyrs
38054 Grenoble Cedex 9
04 38 78 04 89
Tutor / Responsible thesis director
AZAIS Philippe philippe.azais@cea.fr
CEA
DRT/DEHT
17 rue des Martyrs
38054 Grenoble Cedex 9
0438780809
En savoir plus
www.liten.cea.fr