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US 12,183,886 B2Granted
Electrolyte solution for lithium secondary battery and lithium secondary battery including the same
AssigneesHyundai Motor Company, Kia Corporation, The Industry & Academic Cooperation in Chungnam National University (IAC)
InventorsJun Ki Rhee, Yoon Sung Lee, Sung Ho Ban, Seung Min Oh, Ko Eun Kim, Seung Wan Song, Gyeong Jun Chung
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Abstract
Disclosed are an electrolyte solution and an additive thereof, which may improve electrochemical properties of a lithium secondary battery.
Claims10
An electrolyte solution for a lithium secondary battery comprising:
- an electrolyte salt and an organic solvent,
- wherein the electrolyte solution comprises a borate-based salt compound represented by the following Chemical Formula 1 as a first additive:
- [Chemical Formula 1]
- wherein the electrolyte solution further comprises a compound represented by the following Chemical Formula 2 as a second additive:
- wherein the electrolyte solution comprises the first additive in an amount of about 1 to 2 wt %, based on a total weight of the electrolyte solution,
- wherein the electrolyte solution comprises the second additive in an amount of about 1 to 2 wt %, based on the total weight of the electrolyte solution, and
- wherein
- R1 to R8 are independently of one another hydrogen, a halogen, or an alkyl group having 1 to 5 carbon atoms substituted with a halogen.
5 more elements
Dependencies are inferred from the claim text.