A system has a battery and an air conditioner in a thermal exchange relationship with an interior of a vehicle. A thermal regulation circuit has liquid pass through. The circuit includes an operative tract in a thermal exchange relationship with the battery to control battery temperature. An interior heating tract connects in parallel with the operative tract and in a thermal exchange relationship with the air conditioner. A refrigeration circuit is configured to have fluid pass through that is subjected to a non-reversible refrigeration cycle. The refrigeration circuit includes a condenser and an evaporator, which are in a thermal exchange relationship with a heating tract and a cooling tract of the thermal regulation circuit. The conditioner includes heating and cooling modules in a thermal exchange relationship with the thermal regulation circuit at respectively, the interior heating tract, and the refrigeration circuit at a spill duct connected parallel with the evaporator.

A system includes a battery, and a thermal regulation circuit configured for having liquid pass through and including an operative tract in a thermal exchange relationship with the battery, to control battery temperature. A refrigeration circuit is configured to have pass through that is subjectable to a non-reversible refrigeration cycle. The refrigeration circuit includes a condenser and an evaporator, which are in thermal exchange relation with a heating tract and a cooling tract of the thermal regulation circuit for thermally interacting with the liquid. A radiator is in a thermal exchange relationship with a thermal stabilization tract of the thermal regulation circuit. A valve assembly configured to have a defrosting configuration, in which the valve assembly defines a closed defrosting path for the liquid between the heating tract and the thermal stabilization tract. A heater is activatable to heat the liquid flowing through the closed defrosting path.

A system includes a battery, and a thermal regulation circuit configured for having liquid pass through and including an operative tract in a thermal exchange relationship with the battery, to control battery temperature. A refrigeration circuit is configured to have pass through that is subjectable to a non-reversible refrigeration cycle. The refrigeration circuit includes a condenser and an evaporator, which are in thermal exchange relation with a heating tract and a cooling tract of the thermal regulation circuit for thermally interacting with the liquid. A radiator is in a thermal exchange relationship with a thermal stabilization tract of the thermal regulation circuit. A valve assembly configured to have a defrosting configuration, in which the valve assembly defines a closed defrosting path for the liquid between the heating tract and the thermal stabilization tract. A heater is activatable to heat the liquid flowing through the closed defrosting path.

Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.

Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.

This application discloses an electronic device, and a charging method and apparatus, and relates to the field of terminals. The electronic device includes a battery, a first circuit board, a heating element, and a charging interface module, where an input port of the charging interface module is configured to be pluggable connected to an external power supply, an output port of the charging interface module is electrically connected to an input end of the first circuit board, an output end of the first circuit board is electrically connected to the battery, and the first circuit board charges the battery; and the output port of the charging interface module is electrically connected to the heating element, and the heating element heats the battery.

This application discloses an electronic device, and a charging method and apparatus, and relates to the field of terminals. The electronic device includes a battery, a first circuit board, a heating element, and a charging interface module, where an input port of the charging interface module is configured to be pluggable connected to an external power supply, an output port of the charging interface module is electrically connected to an input end of the first circuit board, an output end of the first circuit board is electrically connected to the battery, and the first circuit board charges the battery; and the output port of the charging interface module is electrically connected to the heating element, and the heating element heats the battery.

Embodiments of the present application provide a charging method, a battery management system for a traction battery and a charging pile, which can effectively ensure normal charging of an electric vehicle. The charging method is used for charging a traction battery, and the method includes: determining, by the battery management system (BMS) of the traction battery, a pulse charging demand parameter according to a battery state parameter of the traction battery; and sending a pulse charging information to a charging pile by the BMS, the pulse charging information including the pulse charging demand parameter for indicating the charging pile to output a pulse current for charging the traction battery.

Embodiments of the present application provides a charging method and a power conversion equipment, which can effectively ensure a normal charging of a traction battery. The charging method is used for charging the traction battery, the method includes: obtaining, by a power conversion equipment, a battery state parameter of the traction battery; sending, by the power conversion equipment, a charging information to a charging pile, the charging information includes a direct current charging parameter calculated from a pulse charging parameter; receiving, by the power conversion equipment, a direct current output by the charging pile, on the basis of the direct current charging parameter; converting, by the power conversion equipment, the direct current into a pulse current on the basis of the pulse charging parameter, the pulse current is used for charging the traction battery; where, the battery state parameter is used for determining the pulse charging parameter.

A control system for a secondary battery which is less affected by the ambient temperature by performing temperature control of the secondary battery is provided. A control system for a secondary battery which is less affected by the ambient temperature and in which a plurality of kinds of secondary batteries are used for temperature control is achieved and mounted on a vehicle. Specifically, when the ambient temperature is low, some of second secondary batteries are heated by self-heating of a first secondary battery. After the second secondary batteries are sufficiently heated, the rest of the second secondary batteries are heated in stages by self-heating of the some of the second secondary batteries whose temperature has been increased. Whether the some or all of the second secondary batteries are sufficiently heated can be confirmed if the temperatures of a plurality of temperature sensors provided in the second secondary batteries are within the operating temperature range of the second secondary batteries. For example, with the use of a temperature sensing terminal (T terminal) for a temperature sensor, a switch is closed when the internal temperature of the secondary batteries is out of the operating temperature range.