A LITHIUM COBALT OXIDE SECONDARY BATTERY COMPRISING A FLUORINATED ELECTROLYTE AND A POSITIVE ELECTRODE MATERIAL FOR HIGH VOLTAGE APPLICATIONS

A liquid electrolyte lithium secondary battery cell comprising: a positive electrode including a powderous positive active material having the following chemical formula: Li1−x(Co1-a-b-cNiaMnbM″c)1−xO2 with −0.01≤x≤0.01, 0.00≤a≤0.09, 0.01≤b≤0.05, and 0.00≤c≤0.03 wherein M″ is either one or more meta...

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Bibliographic Details
Main Authors BRIDEL, Jean-Sébastien, LEE, Jong-Ju, LEE, Hyuncheol, KIM, Hae-Young, WON, Ji-Hye, CHOI, Moon-Hyung, HOUGH, Lawrence Alan, OH, Mi-Soon, KIM, Jeong-Rae
Format Patent
LanguageEnglish
French
German
Published 10.03.2021
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:A liquid electrolyte lithium secondary battery cell comprising: a positive electrode including a powderous positive active material having the following chemical formula: Li1−x(Co1-a-b-cNiaMnbM″c)1−xO2 with −0.01≤x≤0.01, 0.00≤a≤0.09, 0.01≤b≤0.05, and 0.00≤c≤0.03 wherein M″ is either one or more metals of the group consisting of Al, Mg, Ti and Zr; and an electrolyte composition comprising at least one cyclic carbonate; at least one fluorinated acyclic carboxylic acid ester; at least one electrolyte salt; at least one lithium compound selected from lithium phosphates compounds, lithium boron compounds, lithium sulfonates compounds and mixtures thereof; at least one cyclic sulfur compound; and optionally at least one cyclic carboxylic acid anhydride.
Bibliography:Application Number: EP20190722077