Inhomogeneities and Cell-to-Cell Variations in Lithium-Ion Batteries, a Review
Abstract
Battery degradation is a fundamental concern in battery research, with the biggest challenge being to maintain performance and safety upon usage. From the microstructure of the materials to the design of the cell connectors in modules and their assembly in packs, it is impossible to achieve perfect reproducibility. Small manufacturing or environmental variations will compound big repercussions on pack performance and reliability. This review covers the origins of cell-to-cell variations and inhomogeneities on a multiscale level, their impact on electrochemical performance, as well as their characterization and tracking methods, ranging from the use of large-scale equipment to in operando studies.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 03, 2021
- Source ID
- 10.3390/en14113276
Entities
People
- David Beck
- Dirk U. Sauer
- Mark Junker
- Matthieu Dubarry
- Philipp Dechent
Organizations
- Federal Ministry for Economic Affairs and Climate Action
- Federal Ministry of Research, Technology and Space
- Office of Naval Research