Patent ID: 8470207
Filing Date: 2013-06-25
Classification: B82Y,C01B,H01M,Y02E

Abstract:
1. A nano-positive electrode material of lithium cell comprising lithium iron phosphate as substrate and doped conductive ion and voltage-boosting doping ion having the general chemical formula: (Li x [M 1-x )(Fe y [N 1-y ])PO 4 , wherein x=0.9-0.96, y=0.93-0.97, M represents conductive doping ion is selected from the group consisting of Mg 2+ , Ca 2+ , Sr 2+ , Ti 2+ , Al 3+ , B 3+ , Ce 3+ , C 4+ , Si 4+ , Si 4+ , Ge 4+ , P 5+ , and combination thereof; and N represents voltage-boosting doping ion is selected from the group consisting of Ti 2+ , V 5+ , Co 3+ , Ni 3+ , Mn 2+ , Cr 3+ , Cu 2+ , Mo 4+ , and combination thereof, wherein a particle diameter of the nano-positive electrode material of lithium cell is 40-80 nm.