Influence of salt, solvents, and additives on the thermal stability of delithiated cathodes in lithium-ion batteries

Title
Influence of salt, solvents, and additives on the thermal stability of delithiated cathodes in lithium-ion batteries
Authors
김상옥최원창이용호문준영박민식김기재이관영
Keywords
Lithium-ion battery; solvents; additives; cathode; thermal stablity
Issue Date
2017-11
Publisher
Journal of electroanalytical chemistry
Citation
VOL 807-180
Abstract
The thermal stability of a fully delithiated cathode, coupled with an inorganic salt, organic solvents, and electrolyte, was evaluated with differential scanning calorimetry (DSC) to address the safety issue of lithium-ion batteries. The DSC experiments revealed that vinylene carbonate (VC)-based systems exhibit decreased thermal stability compared to other coexisting systems. The DSC analysis of the cathode and electrolyte in the presence of VC, employed as additives, confirmed the reduction in thermal stability. Our results suggested that VC additives, which have been recently employed to enhance the electrochemical performance in anodes, negatively affect the thermal properties and safety characteristics of the cathode in lithium-ion batteries.
URI
http://pubs.kist.re.kr/handle/201004/67035
ISSN
1572-6657
Appears in Collections:
KIST Publication > Article
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