METHOD FOR THE PRODUCTION OF A NEGATIVE ELECTRODE COMPOSITION FOR LITHIUM SECONDARY BATTERIES AND USE OF SAID COMPOSITION IN LITHIUM SECONDARY BATTERIES.

摘要

The invention relates to a negative electrode composition for lithium secondary batteries comprising at least 10 % by weight of a carbon black having a specific BET surface area of at most 20 m2/g, preferably of 2 to 20 m2/g and a method for the production thereof wherein a carbon black and optionally a more ordered carbon material, preferably coke and/or graphite, is ground in a solvent containing a binder so as to produce a uniform, viscous slurry, followed by coating of the slurry onto a substrate, preferably a metal foil substrate, evaporation of the solvent and drying at elevated temperature. The invention also relates to the use of this negative electrode composition for the manufacturing of lithium secondary batteries as well as a lithium secondary battery comprising such a negative electrode composition.