Overcoming Cracking in High Capacity Battery Electrodes by Spontaneous Micro-structuring
Abstract
The performance of lithium-based batteries can be enhanced by low-cost alternative electrodes (such as silicon-based anodes or sulfur cathodes) that have excellent potential for enhanced energy storage capacity. However, their performance has been limited by crack formation from the large volume changes that arise during cycling, especially for practical active material loading which necessitates thick electrodes. The Principal Investigators have previously demonstrated the utility of so-called ‘expansion tolerant’ electrodes whereby a novel binder preparation technique (using carboxymethylcellulose, a common polymeric binder) was shown to maximise the reaction surfaces of a sulfur cathode whilst maintaining its mechanical integrity upon cycling via the formation of mechanically-robust bridging bond microstructural architectures.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 16, 2024
- Source ID
- FA23862314004
Entities
People
- Mainak Majumder
Organizations
- Air Force Office of Scientific Research
- Monash University
- United States Air Force