A battery temperature regulating apparatus to be applied to a vehicle includes an onboard battery, a temperature regulating plate configured to allow heat exchange between the onboard battery and a first heat medium flowing into the temperature regulating plate, a heat exchanger, a first passage configured to guide the first heat medium flowing out of the temperature regulating plate to the heat exchanger, and a second passage configured to guide the first heat medium flowing out of the heat exchanger to the temperature regulating plate. The heat exchanger includes a container and a first internal passage. The container is configured to accommodate a heat source that does not use a power supply for the vehicle. The first internal passage is disposed around the container in such a way as to allow heat exchange. The first internal passage is configured to allow the first passage to communicate with the second passage.

This disclosure relates to an electrified vehicle configured to power limit a battery based on a thermal exchange capacity, and a corresponding method. In particular, an example electrified vehicle includes a battery, a thermal management system configured to circulate thermal exchange fluid relative to the battery, and a controller configured to power limit the battery based on a thermal exchange capacity of the thermal exchange fluid.

A method for fast charging from an initial charge state SOC.sub.0 to a predefined target charge state SOC.sub.target is provided. Optimized fast charging conditions are determined using impedance measurements or impedance spectroscopy (EIS) of a battery system which includes a plurality of lithium ion cells. Units consisting of individual cells or of blocks of cells connected in parallel are connected in series, and devices for measuring the voltage and at least one component of the impedance of these cell units are also provided.

A battery module for a traction battery of an electric vehicle is disclosed. The battery module includes a heat transfer surface for tempering cells of the battery module and at least one cavity disposed between partial surfaces of the heat transfer surface for receiving excess heat conductive material.

A battery pack assembly includes a housing, a battery cell assembly, and a fan. The housing having a plurality of sides and defining an internal cavity. The battery cell assembly positioned in the internal cavity. The battery cell assembly includes a plurality of battery cells and a frame supporting the battery cells. The frame includes a first support member, a second support member, and a plurality of leg members connecting the first support member and the second support member. The first support member and the second support member each has a body extending between a first edge and a second edge opposite the first edge. The body defines a plurality of openings configured to align with one of the battery cells. The fan is configured to circulate air within the housing and through the battery cell assembly.

A charging device for charging the electrochemical energy accumulator has a first circuit which is or can be coupled electrically to the electrochemical energy accumulator. A heating device for heating the electrochemical energy accumulator has a second circuit, separate from the first circuit, having an induction heating element which can be heated inductively by an external magnetic alternating field and which is or can be coupled thermally to the electrochemical energy accumulator.

A charging device for charging the electrochemical energy accumulator has a first circuit which is or can be coupled electrically to the electrochemical energy accumulator. A heating device for heating the electrochemical energy accumulator has a second circuit, separate from the first circuit, having an induction heating element which can be heated inductively by an external magnetic alternating field and which is or can be coupled thermally to the electrochemical energy accumulator.

Disclosed are a heating method for a rechargeable battery, a control unit and a heating circuit. The heating method comprises: determining a frequency value of a pulse current for heating the rechargeable battery in response to a heating command of the rechargeable battery; determining a current value of the pulse current according to the frequency value and an acquired state parameter of the rechargeable battery; judging whether the current value satisfies a preset heating demand; if the current value satisfies the heating demand, generating the pulse current under control according to the frequency value; if the current value does not satisfy the heating demand, re-determining the frequency value and the current value of the pulse current. The embodiments of the present disclosure further provide a control unit and a heating circuit.

Disclosed are a heating method for a rechargeable battery, a control unit and a heating circuit. The heating method comprises: determining a frequency value of a pulse current for heating the rechargeable battery in response to a heating command of the rechargeable battery; determining a current value of the pulse current according to the frequency value and an acquired state parameter of the rechargeable battery; judging whether the current value satisfies a preset heating demand; if the current value satisfies the heating demand, generating the pulse current under control according to the frequency value; if the current value does not satisfy the heating demand, re-determining the frequency value and the current value of the pulse current. The embodiments of the present disclosure further provide a control unit and a heating circuit.

Disclosed is a traction battery self-heating control method and a device. Acquiring a second temperature of a rotor at a current sampling time according to system parameters and a first temperature of the rotor at a previous sampling time, and estimating a third temperature of the rotor at a next sampling time according to the first temperature and the second temperature, and stopping the self-heating of the traction battery when the third temperature reaches a demagnetization temperature of the rotor. Whether to stop the self-heating of the traction battery is determined by estimating a rotor temperature under the self-heating condition, and comparing the rotor temperature with the demagnetization temperature of the rotor, and thus the self-heating control of the traction battery is realized.