Lg Energy Solution, Ltd.

Yoon Gyo Cho

Chul Haeng Lee

Jeong Woo Oh

Jung Min Lee

Kyung Mi Lee

Su Hyeon Ji

Chul Eun Yeom

Jung Gu Han

A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery comprising the same are provided. The non-aqueous electrolyte solution for a lithium secondary battery of the present disclosure includes a lithium salt, an organic solvent and a compound represented by Formula 1 as a first additive, thereby improving the high-temperature storage characteristics of the secondary battery:

Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery including the same

A non-aqueous electrolyte solution has improved high-temperature stability and high-temperature durability and a lithium secondary battery including the same. The non-aqueous electrolyte solution may include a lithium salt; a non-aqueous organic solvent; and a compound represented by Formula 1 of a specific structure:

Non-aqueous electrolyte solution and lithium secondary battery including the same

The present disclosure provides a non-aqueous electrolyte including a lithium salt, an organic solvent, a compound represented by Formula 1 as a first additive, and a polymer including a repeating unit represented by Formula 2-1, Formula 2-2, and Formula 2-3 as a second additive: all the variables are described herein.

Non-aqueous electrolyte including additive for non-aqueous electrolyte, and lithium secondary battery including the non-aqueous electrolyte

The present disclosure provides a non-aqueous electrolyte including an additive including a repeating unit represented by Formula 1 and a repeating unit represented by Formula 2 below:

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Daejeon, South Korea

Yoon Gyo Cho