Lg Energy Solution, Ltd.

Junhyeok Han

Chul Haeng Lee

Kyoung Ho Ahn

Won Kyung Shin

Su Hyeon Ji

Wontae Lee

Solji Park

Won-Kyung Shin

Youngho Oh

Suhyeon Ji

A lithium secondary battery is disclosed herein. The secondary battery has improved high temperature safety and may prevent generation of a large amount of gas under a high temperature condition, which prevents an increase in resistance and a decrease in capacity due to the elution of metal ions from an electrode by uniformly forming a coating film on an electrode surface during activation of the battery. A positive electrode active material of the battery includes a high concentration(s) of nickel and/or manganese and a non-aqueous electrolyte including an additive are used, which improves performance and high-temperature safety of the battery.

Lithium secondary battery with improved safety

The present disclosure relates to an electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same. More specifically, the electrolyte solution contains the polymer compound represented by Formula 1, and thus can improve high temperature durability, stability, and lifetime characteristics of the lithium secondary battery.

Electrolyte for lithium secondary battery, and lithium secondary battery comprising same

Growing community of inventors

Daejeon, South Korea

Junhyeok Han