Patent ID: 9093414
Filing Date: 2015-07-28
Classification: H01L,H01M,H02J,H02M,Y02E,Y02T

Abstract:
1. A heating circuit for a battery, comprising: a plurality of switch units, a switching control module, a damping component, an energy storage circuit, and a polarity inversion unit, wherein: the energy storage circuit is connected with the battery, and comprises a first current storage component and a plurality of charge storage components; the plurality of charge storage components are connected with the plurality of switch units in series in one-to-one correspondence to form a plurality of branches; the plurality of branches are connected in parallel with each other and connected with the first current storage component and damping component in series; the switching control module is connected with the switch units, and is configured to control switching on and off of the switch units, so that energy flows back-and-forth between the battery and the energy storage circuit when the switch units switch on; the polarity inversion unit is connected with the energy storage circuit, and is configured to invert a voltage polarity of the plurality of charge storage components after the switch units switch from on to off.