Coil unit

A coil unit comprising:

• a coil formed of a coil wire wound around a winding axis, a hollow portion being formed in a position in which the winding axis passes;
• an accommodation case accommodating the coil;
• a metal member;
• a first power line connected to a power storage device;
• a second power line connected to the power storage device;
• a first capacitor and a second capacitor connected in series to each other between the first power line and the second power line;
• and
• a rectifier connected to the first power line and the second power line, the rectifier including:
• a first element and a second element connected in series to each other between the first power line and the second power line;
• and
• a third element and a fourth element connected in series to each other between the first power line and the second power line;
• the coil including:
• an outer peripheral portion located in an outer peripheral edge of the coil, the outer peripheral portion is connected between the first capacitor and the second capacitor;
• and
• an inner peripheral portion located along an inner peripheral edge of the coil, the inner peripheral portion is connected between the first element and the second element,
• a voltage on the inner peripheral portion being higher than a voltage on the outer peripheral portion.