Patent ID: 6048646
Filing Date: 2000-04-11
Classification: H01M,Y02E

Abstract:
A method of treating a copper mesh current collector for use in Li-ion and/or Li-ion polymer batteries, comprising the steps of:positioning a copper mesh current collector within an electrolyte solution adjacent an anode plate, said electrolyte solution comprised of:about 2 to about 25 grams/liter of Cu.sup.+2 ; andabout 30 to about 100 grams/liter of H.sub.2 SO.sub.4 ;making said copper mesh current collector a cathode;energizing said system to have a current density of about 5 to about 20 amperes per square foot;maintaining said system at said current density for about 0.5 to about 3.0 minutes;removing said copper mesh current collector from said electrolyte solution; andrinsing said copper mesh current collector with water.