Lg Chem, Ltd

Lg Energy Solution, Ltd.

Eun Hye Kil

Jin Kyu Lee

Ki Tae Kim

Hyung Ku Yun

Hyeaeun Han

Je Young Kim

Sang Young Lee

Yo Han Kwon

Hye Ran Jung

Keun Ho Choi

Disclosed are an electrolyte for lithium secondary batteries including 10 to 50% by weight of a cyclic carbonate compound, and 50 to 90% by weight of a linear ester compound, based on the total weight of a non-aqueous solvent, wherein a content of ethyl propionate of the linear ester compound is 20 to 60% by weight, based on the total weight of the non-aqueous solvent, and a lithium secondary battery including the electrolyte and exhibiting superior low-temperature characteristics.

Electrolyte for lithium secondary batteries with improved low temperature performance and lithium secondary battery including the same

Provided is a cable-type secondary battery having a predetermined-shaped horizontal cross section and extending in a longitudinal direction, which includes a hollow core portion having a gel polymer electrolyte injected thereinto, an inner electrode which includes an inner current collector surrounding an outer surface of the hollow core portion and an inner electrode active material layer formed on a surface of the inner current collector, a separation layer surrounding an outer surface of the inner electrode, an outer electrode which includes an outer electrode active material layer surrounding an outer surface of the separation layer and an outer current collector surrounding an outer surface of the outer electrode active material layer, and a protective coating layer.

Cable-type secondary battery and method of preparing the same

Growing community of inventors

Daejeon, South Korea

Eun Hye Kil