Binders for electrodes

Details Binders for electrodes Binders for electrodes

H - Electricity

01

M

31/153

H01M 4/62 (2006.01) C04B 35/532 (2006.01) C10C 3/00 (2006.01) C25C 7/02 (2006.01)

Patent

CA 1044005

ABSTRACT OF THE DISCLOSURE A binder suitable for use in electrodes is prepared by distilling a residue boiling above 200°C from steam cracking to give a material with a KS softening point of 55 - 90°C and thermally ageing the material to increase the KS softening point to 80 - 100°C. The residue may be obtained from the steam cracking of naphtha. The thermal ageing may be carried out be heating under reflux or by recycling the residue at the base of the distillation column. The binder preferably has KS softening point of 88 - 100°C a density above 1.20, a Conradson carbon index of 45 - 60, a beta resin content of 20 - 35% wt and an alpha resin content below 10% wt.

213536

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