An air-cooled battery pack is provided, including a plurality of battery modules; a pack case including an air inlet and an air outlet and provided to accommodate the plurality of battery modules; a cooling channel formed between the plurality of battery modules and a bottom surface of the pack case; an inlet duct module configured to form an air passage from the air inlet to the cooling channel; and an outlet duct module including at least one exhaust fan installed within the pack case and provided to forcedly exhaust air to outside of the pack case by forming an air passage from the cooling channel to the air outlet.

An air-cooled battery pack is provided, including a plurality of battery modules; a pack case including an air inlet and an air outlet and provided to accommodate the plurality of battery modules; a cooling channel formed between the plurality of battery modules and a bottom surface of the pack case; an inlet duct module configured to form an air passage from the air inlet to the cooling channel; and an outlet duct module including at least one exhaust fan installed within the pack case and provided to forcedly exhaust air to outside of the pack case by forming an air passage from the cooling channel to the air outlet.

The disclosure relates to a technical field of batteries, and in particular, relates to a battery pack. The battery pack includes a box body, a beam, a battery apparatus, and an electrical support base. The beam is disposed in the box body. The battery apparatus is disposed in the box body, and an electrical conductor is disposed on the battery apparatus. The electrical support base is disposed on the beam. The electrical conductor extends from the battery apparatus to the electrical support base and is connected to the electrical support base.

A battery module includes a cell unit, including a plurality of battery cells disposed on both surfaces of a unit plate, and a case accommodating the cell unit and provided with a cooling device on at least one surface of the case. The unit plate includes a plurality of receiving spaces formed by a plate portion, having a flat surface, and a side portion protruding upwardly and downwardly of the plate portion from both sides of the plate portion. The plurality of battery cells are received in each of the receiving spaces.

Provided is a battery charging system comprising (a) at least one charging circuit to charge at least one rechargeable battery cell; (b) a heat source to provide heat that is transported through a heat spreader element, implemented fully or partially inside said at least one battery cell, to heat up the battery cell to a desired temperature Tc before or during battery charging; and (c) cooling means in thermal contact with the heat spreader element configured to enable transporting internal heat of the battery cell through the heat spreader element to the cooling means when the battery cell is discharged. Charging the battery at Tc enables completion of the battery in less than 15 minutes, typically less than 10 minutes, and more typically less than 5 minutes without adversely impacting the battery structure and performance.

A secondary battery is provided. The secondary battery includes an electrode assembly including a negative electrode sheet, a positive electrode sheet, and a separation membrane; and a heat radiation tape disposed at an external circumferential surface of the electrode assembly. The heat radiation tape includes a heat diffusion layer, and the heat diffusion layer includes at least one of graphite and a metal foil.

A battery that includes collectors with tabs that are wide with respect to the area of the collector. The wide tabs present a low electrical and thermal resistance to improve the flow of current and/or heat to and from the collector thereby improving electrical and thermal performance of the battery. The battery further includes terminals with a channel that supports the flow of medium (e.g., liquid) to heat and/or cool the battery. The terminals may include fins or pins to increase the surface area of the terminal to improve thermal transfer to and from the battery and collectors of the battery. The batteries may be formed into a battery module that includes a system for monitoring and regulating the temperature of the batteries of the module.

A battery that includes collectors with tabs that are wide with respect to the area of the collector. The wide tabs present a low electrical and thermal resistance to improve the flow of current and/or heat to and from the collector thereby improving electrical and thermal performance of the battery. The battery further includes terminals with a channel that supports the flow of medium (e.g., liquid) to heat and/or cool the battery. The terminals may include fins or pins to increase the surface area of the terminal to improve thermal transfer to and from the battery and collectors of the battery. The batteries may be formed into a battery module that includes a system for monitoring and regulating the temperature of the batteries of the module.

The present invention utilizes a three-stage thermal management design of battery module, battery device, and battery system that not only prevents the battery cells from being impacted by the environment temperature, but also efficiently controls the temperature of the battery cells, such that the battery cells can reach the requirements of temperature equalization and appropriate opening temperature. The thermal management design of the battery module is mainly a design of a battery cell charging and discharging circuit having heat exchange.

A battery pack includes: a plurality of unit cells arranged side by side in a first direction and each comprising a first terminal and a second terminal to improve the durability and safety of the battery pack; a protection circuit module disposed on the plurality of unit cells; and a temperature element unit disposed on the plurality of unit cells in the first direction and comprising a first temperature element, a second temperature element, a first plate connecting the first temperature element and the second temperature element, and a second plate having an end electrically connected to the protection circuit module and another end electrically connected to the first plate disposed between the first temperature element and the second temperature element.