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US 2020/0335822 A1Published application
Non-Aqueous Electrolyte Solution for Lithium Secondary Battery and Lithium Secondary Battery Including the Same
AssigneeLG Chem, Ltd.
InventorsSung Hoon Yu, Chul Haeng Lee, Hyun Seung Kim
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Abstract
A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution for a lithium secondary battery, includes an additive having metal ion adsorbability and capable of forming a stable ion conductive film on the surface of an electrode. In some embodiments, a lithium secondary battery including the same has an improved an abnormal voltage drop phenomenon.
Claims11
A non-aqueous electrolyte solution for a lithium secondary battery, comprising:
- a first lithium salt which is lithium bis(fluorosulfonyl)imide (LiFSI);
- a second lithium salt excluding the LiFSI;
- an organic solvent;
- and
- a compound represented by Formula 1:
- wherein, in Formula 1,
- R1 to R3 are each independently hydrogen or an alkyl group having 1 to 6 carbon atoms, and
- A is
- wherein, R4 to R6 are each independently hydrogen, an alkyl group having 1 to 6 carbon atoms which is unsubstituted or substituted with at least one fluorine atom, a substituted or unsubstituted aryl group having 6 to 8 carbon atoms, an aryl group having 6 to 8 carbon atoms which is substituted with at least one fluorine atom, or an alkynyl group having 2 to 6 carbon atoms.
6 more elements
Dependencies are inferred from the claim text.