A temperature controlled enclosure that includes a temperature control device for controlling the temperature within an internal cavity of the temperature controlled enclosure. The temperature controlled enclosure also includes one or more charging ports for receiving and charging a battery pack. A controller within the temperature controlled enclosure controls the temperature within the internal cavity to a predetermined or desired temperature (e.g., 20° C.). When a battery pack is received in the one or more charging ports, the temperature of the battery pack can be determined. If, for example, the temperature of the battery pack is below 0° C., the battery pack is allowed to warm up inside the temperature controlled enclosure before the battery pack is charged.

A cold ambient battery chilling mode of an electric vehicle may be implemented if the vehicle battery is being charged when the ambient air temperature is low and a temperature of the battery is elevated. During cold ambient charging, coolant flows through a heater core and through a battery heat exchanger. Cold ambient air may be utilized to cool the coolant flowing through the heater core, and coolant from the heater core flows through the battery heat exchanger and cools the battery during charging. A battery chiller may be deactivated when the cold ambient battery chilling mode is activated to reduce energy consumption.

A cold ambient battery chilling mode of an electric vehicle may be implemented if the vehicle battery is being charged when the ambient air temperature is low and a temperature of the battery is elevated. During cold ambient charging, coolant flows through a heater core and through a battery heat exchanger. Cold ambient air may be utilized to cool the coolant flowing through the heater core, and coolant from the heater core flows through the battery heat exchanger and cools the battery during charging. A battery chiller may be deactivated when the cold ambient battery chilling mode is activated to reduce energy consumption.

A thermal management method is disclosed in the present application, which is used in a thermal management system. The thermal management system includes a battery equipment and a water chiller. The method includes: collecting a status date of the battery equipment and a real-time operation date of the water chiller; determining whether the status date is within a preset range; if the status date is not within the preset range, adjusting an operation mode of the water chiller according to the status date and the real-time operation date, so that the water chiller performs thermal management on the battery equipment according to the adjusted operation mode. The thermal management method can perform safer and more efficient thermal management control to the battery equipment. A thermal management device, a system and a computer-readable storage medium are further provided according to the present application.

A lithium-ion battery thermal management system and method based on PCM and mutually embedded fins. The thermal management system includes a battery box, a lithium-ion battery pack and a temperature detection unit are arranged in the battery box; the lithium-ion battery pack at least includes two cells, the periphery of each cell is wrapped by a battery inner shell and a battery outer shell, and PCM is filled between the battery inner shell and the battery outer shell; a plurality of fins are arranged on the battery outer shell on the opposite sides of the two adjacent cells, the fins are arranged at intervals, the fins on the opposite sides of the two adjacent cells are arranged in a staggered manner, and heat-conducting plates are connected between each fin and the battery inner shell.

A lithium-ion battery thermal management system and method based on PCM and mutually embedded fins. The thermal management system includes a battery box, a lithium-ion battery pack and a temperature detection unit are arranged in the battery box; the lithium-ion battery pack at least includes two cells, the periphery of each cell is wrapped by a battery inner shell and a battery outer shell, and PCM is filled between the battery inner shell and the battery outer shell; a plurality of fins are arranged on the battery outer shell on the opposite sides of the two adjacent cells, the fins are arranged at intervals, the fins on the opposite sides of the two adjacent cells are arranged in a staggered manner, and heat-conducting plates are connected between each fin and the battery inner shell.

An apparatus and method, according to an exemplary aspect of the present disclosure includes, among other things, a battery pack having a coolant inlet and a coolant outlet, a coolant source to cool the battery pack, and a proportional valve in communication with the coolant inlet and the coolant outlet, and in communication with the coolant source. A battery control module controls the proportional valve such that a direction of flow is switchable at the coolant inlet and the coolant outlet based on temperatures at the coolant inlet and the coolant outlet to provide bi-directional cooling flow through the battery pack. The battery control module directly connects the coolant outlet to the coolant inlet via the proportional valve to bypass the coolant source in response to a predetermined condition.

An apparatus and method, according to an exemplary aspect of the present disclosure includes, among other things, a battery pack having a coolant inlet and a coolant outlet, a coolant source to cool the battery pack, and a proportional valve in communication with the coolant inlet and the coolant outlet, and in communication with the coolant source. A battery control module controls the proportional valve such that a direction of flow is switchable at the coolant inlet and the coolant outlet based on temperatures at the coolant inlet and the coolant outlet to provide bi-directional cooling flow through the battery pack. The battery control module directly connects the coolant outlet to the coolant inlet via the proportional valve to bypass the coolant source in response to a predetermined condition.

In general, the present disclosure is directed to forming lithium ion battery (LIB) cells with structure and chemistry that achieves formation of a solid electrolyte interphase (SEI) layer that allows for operating in relatively high ambient temperature environments, e.g., up to and exceeding 60° C., while significantly reducing self-discharge amounts, e.g., relative to other LIB cells formed with SEI layers measuring about 1-2 nanometers in thickness. For example, one non-limiting embodiment of the present disclosure enables a self-discharge amount for a LIB cell of 10% or less over a four (4) week period of time when operating at an ambient temperature of 60 degrees Celsius.

In general, the present disclosure is directed to forming lithium ion battery (LIB) cells with structure and chemistry that achieves formation of a solid electrolyte interphase (SEI) layer that allows for operating in relatively high ambient temperature environments, e.g., up to and exceeding 60° C., while significantly reducing self-discharge amounts, e.g., relative to other LIB cells formed with SEI layers measuring about 1-2 nanometers in thickness. For example, one non-limiting embodiment of the present disclosure enables a self-discharge amount for a LIB cell of 10% or less over a four (4) week period of time when operating at an ambient temperature of 60 degrees Celsius.