high specific energy high specific power low self-discharge ratio low cost long life high safety
level
Page 9
Li-ion Battery Capacity Calculation for Anode
Page 2
Li-ion Battery Structure
Cylindrical Li-ion Battery structure
18650
Separator, cathode and anode are around the column.
Page 3
Li-ion Battery Structure
component Anode
material Li-embedded Transition metal oxides
Cathode
Li-embeddable compound etc.
Electrolyte
LiPF6 alkyl acid esters
Separator
polyene porous membrane
ennergy density 170 ideal
148
286
(mAh/g)
130-140 actual 100-120
200
voltage(V) cycle life
3.2-3.7 >2000
3.8-3.9 >500
3.4-4.3 inferior
transition metal very rich
Enclosure and metal package
Page 8
example LiCoO4,LiMnO4,LiCoMnOx,LiFePO4 (synthetic) graphite EC,PC ,EDC PE,PP,PP/PE/PP steel,aluminum