Process for manufacturing electrode foils

摘要

Wet chemical production of electrode foils for galvanic cells containing lithium-intercalating electrode(s), which consist of mixture of NOTLESS 2 different fluorinated polymers (I) and insoluble electrochemically active materials (II) finely dispersed in the polymer matrix. (I) is dissolved in solvent and mixed with highly conductive carbon black (III) and (II). The process concerns wet chemical production of electrode foils for galvanic cells containing lithium-intercalating electrode(s), which consist of a mixture of NOTLESS 2 different fluorinated polymers (I) and insoluble electrochemically active materials (II) finely dispersed in the polymer matrix. (I) is dissolved in a solvent and mixed with a highly conductive carbon black (III), which has a surface area between that of surface-minimized graphite and activated carbon, and with (II) with a 2-dimensional layer structure and electronic conductivity NOTLESS 10<-4> S/cm, in which lithium (Li) can be incorporated and removed reversibly, without adding plasticizer, swelling agent or electrolyte. The resultant paste is then applied to an electrode wire or substrate foil and dried. An Independent claim is also included for galvanic cells with electrode foil(s) produced in this way.