公开(公告)号：US10573921B2

公开(公告)日：2020-02-25

申请号：US15509661

申请日：2015-12-02

Applicant: LG CHEM, LTD.

Inventor： Eun Hye Kil ,  Jin Kyu Lee ,  Ki Tae Kim ,  Hyung Ku Yun ,  Hyeaeun Han

IPC: H01M10/052 ,  H01M10/056 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0569 ,  H01M4/36 ,  H01M4/525 ,  H01M4/58 ,  C07C69/22 ,  C07D317/36

Abstract: 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.

公开(公告)号：US11380932B2

公开(公告)日：2022-07-05

申请号：US16720300

申请日：2019-12-19

Applicant: LG Chem, Ltd.

Inventor： Eun Hye Kil ,  Jin Kyu Lee ,  Ki Tae Kim ,  Hyung Ku Yun ,  Hyeaeun Han

IPC: H01M10/052 ,  H01M10/056 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0569 ,  H01M4/525 ,  H01M4/36 ,  H01M4/58 ,  C07C69/22 ,  C07D317/36

Abstract: 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.