Patent ID: 8460816
Filing Date: 2013-06-11
Classification: H01F,H01M,H02J,Y02E,Y10T

Abstract:
1. A rechargeable battery assembly comprising: a storage cell; and receive circuitry comprising a receive coil operatively connected to receive control circuitry, wherein the receive coil is configured to receive inductively coupled current, wherein the receive control circuitry is configured to rectify the current and communicate charging power to the storage cell, wherein the coil is wound around a shield/core comprising magnetically permeable material, and wherein the shield/core is disposed around the storage cell, wherein the receive circuitry includes a receive resonant circuit that exhibits resonance at about a resonant frequency that a transmit resonant circuit exhibits resonance, wherein the receive resonant circuit exhibits a Q value of at least about 10 at the resonant frequency, wherein the transmit resonant circuit is associated with transmit circuitry and a transmit coil configured to produce an alternating magnetic field at about the resonant frequency.