Effect of fluoroethylene carbonate on the transport property of electrolytes towards Ni-rich Li-ion batteries with high safety.
- Resource Type
- Article
- Authors
- Duangdangchote, Salatan; Phattharasupakun, Nutthaphon; Chomkhuntod, Praeploy; Chiochan, Poramane; Sarawutanukul, Sangchai; Tomon, Chanikarn; Joraleechanchai, Nattanon; Sawangphruk, Montree
- Source
- Chemical Communications. 7/14/2021, Vol. 57 Issue 55, p6732-6735. 4p.
- Subject
- *FLUOROETHYLENE
*TRANSPORT theory
*ELECTROLYTES
*ION pairs
*LITHIUM ions
*IONIC structure
*LITHIUM-ion batteries
*LITHIUM cells
- Language
- ISSN
- 1359-7345
Transport phenomena and the solvation structure of lithium ions (Li+) and hexafluorophosphate anions (PF6−) in electrolytes with different fluoroethylene carbonate (FEC) concentrations as well as the electrochemical performance and safety of Ni-rich Li-ion battery cells at the 18650 cylindrical cell level are investigated. We have found that the electrolyte with an optimized FEC concentration (25% v/v) can effectively enhance the transport property in terms of the Li+ transference number and contact ion pair (CIP) ratio leading to high performance and safety of practical 18650 cylindrical LIBs. [ABSTRACT FROM AUTHOR]