A PROCESS FOR PREPARING A COMPOSITE ANODE FOR LITHIUM ION CELL

The present application provides a process for preparing a composite anode for a lithium ion cell comprising the steps of: (i) forming an anode slurry in a planetary mixing machine by mixing active materials, a binder and a solvent; (ii) coating the slurry over a copper foil substrate in a coating m...

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Bibliographic Details
Main Authors MERCY, TD, BIBIN, John, S, Aravamuthan
Format Patent
LanguageEnglish
French
German
Published 26.07.2023
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:The present application provides a process for preparing a composite anode for a lithium ion cell comprising the steps of: (i) forming an anode slurry in a planetary mixing machine by mixing active materials, a binder and a solvent; (ii) coating the slurry over a copper foil substrate in a coating machine at a speed of 0.3-1.0 m/min; and (iii) calendering of the anode in a calendering machine at a temperature of 50-150° C. The lithium ion cell with the anode disclosed in this invention and a cathode exhibited a capacity retention of >80% at 100% depth-of-discharge at C/2-1C charge-discharge rate when tested for 2000 cycles.
Bibliography:Application Number: EP20200854556