4657results about "Cell temperature control" patented technology

A lithium-ion secondary battery includes: a winding body in a coil formation at a battery container, the winding body wrapping a cathode film in which lithium ions store and from which lithium ions extract and a anode film in which lithium ions store and from which lithium ions extract, and the cathode film and the anode film being electrically separated from each other via a porous separator; and a heat sink disposed inside the battery container, which contacts the battery container and transmits heat inside the winding body to the battery container.

A forced discharge mechanism for a storage battery for forcibly establishing conduction between a pair of power transport paths that are respectively connected to a positive electrode terminal and a negative electrode terminal of the storage battery includes an electric resistor for establishing conduction between the power transport paths, and the electric resistor is movable due to a buoyant force of liquid that has entered.

Disclosed herein is a modular battery system having at least one set of battery modules, preferably monoblock modules connected in series. Each of the battery modules may be designed with a first endplate and a second endplate, wherein each battery module is set between the first and second endplates and at least one band member couples the endplates to each other, binding the battery module between the endplates. The endplates are secured between a pair of rails and the system is disposed in a system housing. A cooling manifold provides a system wherein coolant flows into and out of each battery module. The system housing preferably has a coolant inlet and a coolant outlet. The cooling manifold is in flow communication with the coolant inlet and the coolant outlet. A battery monitoring system, which may include a battery control module and at least one remote sensing module, preferably monitors and collects performance and status information, such as voltage and temperature, of the battery modules. An integrated control unit (ICU) may be disposed in the system housing. The ICU supports electronics, some of which are used to collect electrical energy produced by the battery modules and / or monitor the system.

A thermal management system for a vehicle includes a heat exchanger having a thermal energy storage material provided therein, a first coolant loop thermally coupled to an electrochemical storage device located within the first coolant loop and to the heat exchanger, and a second coolant loop thermally coupled to the heat exchanger. The first and second coolant loops are configured to carry distinct thermal energy transfer media. The thermal management system also includes an interface configured to facilitate transfer of heat generated by an internal combustion engine to the heat exchanger via the second coolant loop in order to selectively deliver the heat to the electrochemical storage device. Thermal management methods are also provided.

An electric vehicle includes plurality of batteries accommodated in a rear portion of a battery box, and an electric part is accommodated in an electric part accommodating chamber provided in a front portion of the battery box. Cooling air supplied from a cooling fan to the rear portion of the battery box cools the batteries having a large thermal resistance, while being passed through a first cooling air passage around outer peripheries of the batteries at a low flow rate. A second cooling air passage having a smaller sectional area than that of the first cooling air passage is provided below the electric part accommodating chamber, and cooling fins protruding downwards from the electric part are exposed within the second cooling air passage. The second cooling air passage extends continuously the first cooling air passage in a downstream direction of airflow, so that cooling air which has first cooled the batteries then cools the electric part having a smaller thermal resistance, while being passed through the second cooling air passage at a higher flow rate than that in the first cooling air passage.

A battery module of the present invention is adaptable to be utilized in various configurations including and not limited to an overlapping battery cell packaging configuration and a vertical stack battery cell packaging configuration used in an automotive vehicle. The battery module has a plurality of battery heatsink assemblies with the cells disposed therebetween. A plurality of rods extend through the each heatsink assemblies to secure the heatsink assemblies and the cell with one another to form the battery module.

A cell controller having excellent productivity is provided. A cell-con 80 has 12 ICs IC-1 to IC-2 mounted on a substrate, and these ICs detect voltages of respective cells constituting a cell pack, perform capacity adjustment on the respective cells, and are mounted two by two on rectangular longer sides of a rectangular continuous straight line L-L′ defined on a substrate from the IC-1 on a highest potential side to the IC-12 on a lowest potential side continuously in order of potential differences of the corresponding cell packs. Distances between the rectangular shorter sides of the rectangular continuous straight line L-L′ are the same. On the cell-con 80, between the IC-1 to IC-12 having different ground voltages, each of the ICs has signal output terminals connected to signal input terminals of a lower order IC respectively in an electrically non-insulated state.

A cordless power tool has a housing which includes a mechanism to couple with a removable battery pack. The battery pack includes one or more battery cells as well as a system to dissipate heat from the battery pack.

A vehicle includes a body adapted to carry passengers or cargo, an electric engine / motor, and a temperature-controlled battery configuration. The battery configuration includes a casing, and a plurality of alternating Lithium-ion cell packs and spacers defining vertical channels, the spacers supporting the cell packs in a hanging manner in the casing. The casing is flooded with a thermally-conductive electrically-insulating fluid flowing from the inlet under the cell packs, upwardly across the cell packs and out an outlet to a heat exchanger for controlling a temperature of the cell packs. A fluid pump connected to the engine / motor and a heat exchanger pumps the liquid through the system. A controller is provided for controlling the pump and fluid flow to control a temperature of the battery configuration to maintain the temperature in a desired temperature range.

A secondary battery module includes a plurality of unit batteries, a housing receiving the unit batteries, a cell barrier plate disposed between the unit batteries to transfer heat generated from the unit batteries, a cooling plate disposed in contact with an end of the cell barrier plate, and a heat dissipation assembly disposed proximate to the cooling plate to dissipate heat transferred to the cooling plate.

Alkaline and lithium batteries are disclosed that advantageously include separators comprising at least one porous layer of fine fibers having a diameter of between about 50 nm and about 3000 nm that provide improved combinations of reduced thickness, dendritic barrier against short-circuiting and low ionic resistance as compared with known battery separators.

A thermal management system for a vehicle includes a heat exchanger having a thermal energy storage material provided therein, a first coolant loop thermally coupled to an electrochemical storage device located within the first coolant loop and to the heat exchanger, and a second coolant loop thermally coupled to the heat exchanger. The first and second coolant loops are configured to carry distinct thermal energy transfer media. The thermal management system also includes an interface configured to facilitate transfer of heat generated by an internal combustion engine to the heat exchanger via the second coolant loop in order to selectively deliver the heat to the electrochemical storage device. Thermal management methods are also provided.

An active thermal runaway mitigation system is provided that mitigates the effects of a single cell undergoing thermal runaway, thereby preventing the propagation of the thermal runaway event to neighboring cells within the battery pack. The provided system includes at least one, fluid-containing conduit in proximity to the cells within the battery pack. The conduit includes a plurality of breach points in proximity to the subset of cells, where each breach point is configured to form a breach at a preset temperature that is lower than the melting temperature of the conduit. Once a breach is formed, the fluid contained within the conduit is discharged through the breach.

An autonomous vacuum cleaner comprising a main body comprising a dirty air inlet, a clean air outlet, an airflow path extending between the dirty air inlet and the clean air outlet, a separating apparatus arranged in the airflow path between the dirty air inlet and the clean air outlet, and an airflow generator for generating an airflow along the airflow path from the dirty air inlet to the clean air outlet. The airflow generator has a discharge portion which discharges airflow into a chamber formed in the main body, the chamber including an opening that is closable by a removable panel, wherein a power source is receivable within the chamber formed in the main body and is removable from the chamber through the opening.

A battery module with an excellent cooling effect includes a battery unit 194 and a circuit unit 192. The battery unit 194 includes a casing main body 195 having an external frame 195a formed of a plate-like member in a rectangular shape and an internal member 197 supported inside the external frame 195a. A plurality of lithium single cells 202 to 208 are connected in series to form a longitudinal tandem cell 200. A plurality of the tandem cells 200 are disposed on either side of the internal member in parallel, and the entire tandem cells are connected in series by connecting metal fittings that are disposed on either side of the tandem cells 200. A cover 198 with ventilation opening is mounted on the casing main body 195. The circuit unit 192 is disposed on one end of the battery unit 194 and includes a control circuit that detects the voltage of each of the lithium single cells 202 to 208 and transmits the result of detection using a control means.

A cooling system for a battery pack module with a plurality of battery cells includes a cooling plate assembly having a first side wall and a second side wall spaced apart from one another. The first and second side walls are connected by a base wall. The first side wall, the second side wall and the base wall have at least one flow channel formed therein. The first side wall has an inlet in fluid communication with the flow channel. The second side wall has an outlet in fluid communication with the flow channel. The cooling plate assembly is configured to be placed in heat transfer communication with the battery cells disposed between the first and second side walls. The cooling plate assembly permits a coolant to flow into the inlet, through the at least one flow channel, and out of the outlet to regulate a temperature of the battery cells.

The invention relates to the field of heat management of electric vehicles, and in particular to an integrated thermal cycling system of an electric vehicle. The integrated thermal cycling system of the electric vehicle comprises a motor system heat dissipation device, a motor, a motor controller, an air-conditioning system, a first water pump, an air heater, a water cooling jacket, a battery pack, a heater, a battery pack heat dissipation device, a second water pump, a heat exchanger and an evaporator; and a refrigerant pipeline and a water pipeline are connected onto the heat exchanger, the water cooling jacket is installed on the battery pack, and the motor system heat dissipation device, the first water pump, the motor controller and a motor are sequentially and circularly connected with each other according to the circulating water flowing direction, so that a motor cooling cycling circuit is formed. When the environment temperature is low, the battery pack is preheated and heated and an air conditioner in the vehicle is warmed up before the electric vehicle is started, when the environment temperature is high, the battery pack is cooled, a cab is refrigerated and the motor and the motor controller are cooled, accordingly, high requirements on the self operating temperatures of the motor system and a battery are satisfied, so that the service lives and efficiency of the motor system and the battery are increased.

A cooling module for a battery pack assembly is disclosed. The cooling module includes a frame having a plurality of legs forming an opening through a central portion of the frame, at least one of the plurality of legs including a slot formed therethrough. A cooling fin is coupled to the frame. The cooling fin includes a corrugated plate interposed between a first plate and a second plate forming a plurality of fluid flow channels between the first plate and the second plate. The cooling modules are disposed in a stack having at least one battery cell disposed between adjacent cooling modules. The battery cell is in heat transfer communication with the cooling fin of at least one cooling module, wherein the cooling fin facilitates a transfer of heat energy between the battery cell and the flow channels formed in the cooling fin.

A battery pack thermal management system for use in an electric car. The battery pack thermal management system includes a plurality of thermistors connected to a plurality of cells of a battery pack. A battery monitor board is connected to the thermistors. The system also includes a manifold and a plurality of cooling tubes connected to the manifold. A tube seal plug is arranged over an end of the cooling tube and an end fitting is arranged on an end of the cooling tube. The thermal management system will cool the battery pack to predetermined temperatures to increase the longevity of the battery pack within the electric vehicle.

A secondary battery module including sealed cooling conduits through which a heat transfer medium flows between adjacent unit batteries. The secondary battery module includes a plurality of cooling conduits disposed in parallel facing each other and sealed so that a heat transfer medium flows therein; a plurality of unit batteries disposed between the plurality of cooling conduits; a supply conduit for supplying the heat transfer medium to the plurality of cooling conduits; an exhaust conduit for exhausting the heat transfer medium from the plurality of cooling conduits; and a spacer for maintaining spaces in the cooling conduits by being disposed inside each of the plurality of cooling conduits.

A cordless power tool has a housing which includes a mechanism to couple with a removable battery pack. The battery pack includes one or more battery cells as well as a vent system in the battery pack housing which enables fluid to move through the housing. A mechanism is associated with the battery pack to dissipate heat from the battery pack.

An electrical power system for a spacecraft or other vehicle or structure comprising a structural member containing an integrated solid-state power source is disclosed. The power source includes a solar cell system and an energy storage system that are combined into a single unit or package, and in certain embodiments, are configured into the shape of a flexible aerobot balloon or a rigid nanosat surface panel. The power components of a preferred lightweight power unit, include thinly layered photovoltaic cells, a rechargeable lithium solid polymer electrolyte battery, a capacitor, electronics and thermal management capability.

Thermal runaway in battery packs is suppressed by inserting packages of hydrated hydrogel at physical interfaces between groups of one or more cells. The hydrogel acts to diffuse and absorb thermal energy released by the cells in the event of a cell failure. During extreme overheating of a battery cell, the water stored by the hydrogel will undergo phase change, that is, begin to vaporize, thus absorbing large amounts of thermal energy and preventing thermal runaway.

A storage battery system includes a battery module including nonaqueous electrolyte secondary batteries. The storage battery system further includes a temperature sensor which measures a temperature of the battery module, a voltmeter which measures a voltage of each of the nonaqueous electrolyte secondary batteries and a charge control unit which controls a maximum end-of-charge voltage V1 (V) of the nonaqueous electrolyte secondary batteries to fall within the range defined in formula (1) given below when the temperature of the battery module is not lower than 45° C. and is not higher than 90° C.: 0.85×V0≦V1≦0.96×V0   (1)

A battery assembly has a plurality of battery packs each presenting a housing and multiple cells adjacent one and the other and disposed in the housing. A foam solution is injected into the case of each battery pack. The foam extends around each cell and the case to encapsulate each cell thereby eliminating air gaps between the cells and the case and receiving heat generating by the cells in operational mode of the battery pack.

A battery module with a cooling system capable of ventilating a uniform amount of air through the respective unit cells. The battery module includes a plurality of unit cells spaced from each other and a housing for accommodating the unit cells therein. The housing has an inflow guide side inclined with respect to the direction perpendicular to the interfacial surfaces of the plurality of unit cells, an air inlet for introducing a temperature controlling air, and an air outlet for discharging the air ventilated through the unit cells.