logo_mono_9
Ø
Ø2/16
ØCable charge
 infrastructure
Ø
Background
ØEnergy density
ØApprox.
Ø1/40
MC900296110[1]
ØLi-ion
Øbattery
MC900343675[1]
ØGasoline
MC900413532[1]
ØApprox.
1/130
ØApprox.
tens of times
ØMass battery
Ø
Ø
ØConservation
Ø  of energy
Ø
Ø
Ø
Ø
Ø
ØElectric
Ø vehicle
üMiniaturization of batteries
üShortening of charge time
üLong distance running
üDecrease in negative
environmental impact
Ø
ØAdvantages of  
Ø   power transfer
ØCharge lane
ØEnergy that
         can be used
ØReplenishment time
Ø
ØWireless
ØPower transfer
MC900388756[1]
Ø
ØElectric vehicle
Ø
üEnvironmental 
Ø      protection
üIncreased fossil        fuel cost
Recently, the electric vehicle has attracted attention from the viewpoint of environmental protection. However, the energetic density of present batteries is very low compared with gasoline. Moreover, charging time is very long compared with the charging time for gasoline.
Some methods are examined as solutions to this problem.
We have examined a wireless power supply technology that is applicable while a vehicle is moving. The advantages of this power transfer technology are as follows.