Battery label with wireless battery charging circuit

• US 7,511,454 B1
• Filed: 08/19/2008
• Issued: 03/31/2009
• Est. Priority Date: 04/23/2008
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Legg, Stephen Peter
• Primary Examiner(s): Ullah; Akm E
• Assistant Examiner(s): Muralidar; Richard V
• Application Number:
  US12/194,400
• Time in Patent Office: 224 Days
• Field of Search: 320/108, 455/127.1, 455/343.1, 455/573
• US Class Current: 320/108
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H01M 50/119 Metals
• CPC Class Codes: H01M 50/126 comprising three or more layers
• CPC Class Codes: H02J 2207/20 Charging or discharging characterised by the power electronics converter
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

This invention relates to an apparatus and method for making a battery charging unit using induction to eliminate the requirement to constantly remove rechargeable batteries from their particular units in order to recharge them. This invention further relates to an apparatus and method using induction to eliminate the requirement to electrically or mechanically connect the charged device to a battery charging unit in order to recharge the battery.

Claims

1. A wireless battery charging unit comprising:

a power receiving and rectification circuit arranged on a label wherein the label is disposed on a battery;

the label with a first insulating base layer arranged on the battery;

a patterned layer of conductive ink printed on the first insulating base layer;

a second insulating layer having apertures laminated onto the printed patterned layer of conductive ink to expose said printed pattern of conductive ink;

said second insulating layer coated with a pressure sensitive adhesive layer for holding the label onto the battery;

the power receiving and rectification circuit inductively receiving power from a power transmitting circuit through an inductive coupling; and

the inductive coupling communicating inductively with the printed pattern of conductive ink exposed through the apertures in order to transmit power to charge the battery.