公开(公告)号：US20200259215A1

公开(公告)日：2020-08-13

申请号：US16270160

申请日：2019-02-07

Applicant: SAFT AMERICA

Inventor： Joong Sun PARK ,  Saori TOKUOKA ,  Carine MARGEZ ,  Thomas GRESZLER

IPC: H01M10/0569 ,  H01M4/58 ,  H01M4/587 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/0567

Abstract: Provided are an electrolyte for low temperature operation of lithium titanate electrodes, graphite electrodes, and lithium-ion batteries as well as electrodes and batteries employing the same. The electrolyte contains 1 to 30 vol % of a low molecular weight ester having a molecular weight of less than 105 g/mol and at least one non-fluorinated carbonate. An electrolyte additive may include 0.1 to 10 wt % of fluorinated ethylene carbonate, particularly when used with a graphite anode. Another electrolyte contains a high content of the low molecular weight ester of at least 70 vol %.