Electrolyte including low molecular weight ester and non-fluorinated carbonate for low temperature operation of lithium titanate and graphite electrodes, and lithium-ion batteries

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 th...

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Bibliographic Details
Main Authors Tokuoka, Saori, Greszler, Thomas, Park, Joong Sun, Margez, Carine
Format Patent
LanguageEnglish
Published 12.04.2022
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary: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 %.
Bibliography:Application Number: US201916270160