Patent ID: 9209103
Filing Date: 2015-12-08
Classification: H01L,H01M,H02J,H02M,Y02E,Y02T

Abstract:
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; a first charge storage component including a first storage terminal and a second storage terminal, the first charge storage component and the first current storage component being at least parts of an energy storage circuit; and a current limiting circuit; wherein: wherein the circuit for heating the battery is configured to heat the battery by at least discharging and charging the battery; wherein the switch unit includes a first branch circuit for conduction in a first direction and a second branch circuit for conduction in a second direction, the first direction being from the battery to the first charge storage component, the second direction being from the first charge storage component to the battery; wherein the current limiting circuit includes a second current storage component connected in series with the second branch circuit; wherein: wherein the switching control component is further configured to turn on and off the first branch circuit by turning on and off the first switch respectively; the second branch circuit further includes a second switch coupled to the switching control component and connected in series with the second one-way semiconductor component; wherein the switching control component is further configured to turn on and off the second branch circuit by turning on and off the second switch respectively; the circuit for heating the battery further comprising: a third one-way semiconductor component coupled to the second switch and the second current storage component; a fourth one-way semiconductor component coupled to the second one-way semiconductor component and the second current storage component; a third switch coupled to the third one-way semiconductor component and the battery; and a fourth switch coupled to the fourth one-way semiconductor component and the battery; wherein: