Project description
Breaking barriers to current flow and electric vehicle uptake
Solid-state lithium batteries (ssLBs) promise to significantly enhance the performance and safety compared to conventional Li-ion batteries. These characteristics are advantageous to developing battery systems that can be used for electric vehicles and off grid power systems. Whereas Li-ion batteries rely on a liquid electrolyte, ssLBs use solid electrodes and electrolyte, enabling lighter weight, higher energy density, safer batteries. However, faster recharge is challenging. The MASSIF project funded by the Marie Skłodowska-Curie Actions programme will develop an artificial solid electrolyte interphase between the positive electrode and the electrolyte to reduce the interfacial resistance and optimise the ssLBs. This system can be tailored to enhance the performance of the electric vehicles.
Objective
The project proposal MASSIF aims at improving the fundamental understanding and control of interfaces of a battery type based on Li active materials all solid state batteries (ASSLB). The main objective is the investigation and optimization of the interfaces developing between the solid electrolyte and the electrochemically active material particles electrodes. The acquired knowledge would allow the design of optimized interfacial layers (also called artificial Solid Electrolyte Interfaces, art-SEI) capable of warrant stable interfaces. The art-SEI should allow intimate contact between the active material and the conductive particles. Our research program involves hybrid electrolytes in combination with solid state electrolytes (SSE); this approach proves to be useful to generate an art-SEI. We are going to pay attention to the positive electrode-solid electrolyte interface, which has been studied as much as the metal Li solid electrolyte interface. With this in mind, they are going to use Li2S as a positive electrode, and the last task of the project will develop a full cell using Si as a negative electrode. Si was selected as a negative electrode to avoid the problems related to Li; it is known that Li reacts with most of the SSE.
The project also takes in to account the training of the researcher and the career development plan to achieve the goals and independence of the researcher. The interdisciplinary and network of the host institution will be also used to push the career of the researcher forward.
Fields of science
Keywords
Programme(s)
Funding Scheme
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinator
76131 Karlsruhe
Germany