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Battery heating circuits and methods based on battery discharging using resonance components in series

  • US 9,105,595 B2
  • Filed: 07/18/2011
  • Issued: 08/11/2015
  • Est. Priority Date: 07/30/2010
  • Status: Active Grant
First Claim
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1. A circuit for heating a battery, the circuit comprising:

  • the battery including a first damping component and a first current storage component, the first damping component and the first current storage component being parasitic to the battery, the battery including a first battery terminal and a second battery terminal;

    a switch unit;

    a switching control component coupled to the switch unit; and

    a first charge storage component, the first charge storage component and the first current storage component being at least parts of an energy storage circuit;

    wherein;

    the first damping component, the first current storage component, the switch unit, and the first charge storage component are connected to form at least a part of a loop; and

    the switching control component is configured to turn on the switch unit so as to allow a current to flow from the battery to the first charge storage component but not to allow any current to flow from the first charge storage component to the battery and to turn off the switch unit so as to stop the current;

    wherein the circuit for heating the battery is configured to heat the battery by at least discharging the battery.

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