Innovating the batteries of the future
Event details
| Date | 08.03.2022 |
| Hour | 10:00 › 11:00 |
| Location | Online |
| Category | Conferences - Seminars |
| Event Language | English |
Public Seminar / Faculty Search for a position in Battery Materials, STI / IMX
Connecting to Zoom: Meeting ID: 643 6913 5076, Passcode: 032095
Dr. Corsin Battaglia, EMPA, Swiss Federal Laboratories for Materials Science and Technology, Laboratory Materials for Energy Conversion
Abstract:
Batteries are recognized as key enabler for the decarbonization of the transport sector and the transition to renewable energies. However, alternatives to current lithium-ion battery chemistries need to be developed in order to reach performance and sustainability goals.
After a brief introduction to next-generation lithium-ion battery cells developed in our lab, I will describe our efforts in enabling alternative high-energy cathode materials, which do not rely on critical cobalt. We are particularly interested in a promising novel class of cobalt-free high-energy cathode materials with a cation-disordered crystal structure, which require an excess of lithium to promote lithium mobility. These materials tend to be highly reactive in the de-lithiated/charged state requiring an electrolyte capable of forming a robust interface passivation layer during the first few cycles to prevent continuous electrolyte decomposition.
My lab is also working intensively on solid-state batteries promising to double the energy density compared to traditional lithium-ion batteries with liquid electrolytes by enabling lithium metal anodes. I will describe recent strategies, we developed, to prevent the formation of lithium metal dendrites during dis-/charge cycling, which can short-circuit the cell and thus represent a major safety hazard. We recently also demonstrated the successful realization of a competitive solid-state battery with a lithium metal anode and a high-energy cathode. A decisive advantage of our solid electrolyte is that it can be crystallized out of solution, enabling future high-volume battery manufacturing by printing.
Connecting to Zoom: Meeting ID: 643 6913 5076, Passcode: 032095
Dr. Corsin Battaglia, EMPA, Swiss Federal Laboratories for Materials Science and Technology, Laboratory Materials for Energy Conversion
Abstract:
Batteries are recognized as key enabler for the decarbonization of the transport sector and the transition to renewable energies. However, alternatives to current lithium-ion battery chemistries need to be developed in order to reach performance and sustainability goals.
After a brief introduction to next-generation lithium-ion battery cells developed in our lab, I will describe our efforts in enabling alternative high-energy cathode materials, which do not rely on critical cobalt. We are particularly interested in a promising novel class of cobalt-free high-energy cathode materials with a cation-disordered crystal structure, which require an excess of lithium to promote lithium mobility. These materials tend to be highly reactive in the de-lithiated/charged state requiring an electrolyte capable of forming a robust interface passivation layer during the first few cycles to prevent continuous electrolyte decomposition.
My lab is also working intensively on solid-state batteries promising to double the energy density compared to traditional lithium-ion batteries with liquid electrolytes by enabling lithium metal anodes. I will describe recent strategies, we developed, to prevent the formation of lithium metal dendrites during dis-/charge cycling, which can short-circuit the cell and thus represent a major safety hazard. We recently also demonstrated the successful realization of a competitive solid-state battery with a lithium metal anode and a high-energy cathode. A decisive advantage of our solid electrolyte is that it can be crystallized out of solution, enabling future high-volume battery manufacturing by printing.
Practical information
- Expert
- Free
- This event is internal
Contact
- Francesco Stellacci