22results about "Cells cooling/heating" patented technology

Presented are passive temperature control systems for thermal management of electrical components, methods for making / using such thermal management systems, and aircraft equipped with smart-material activated temperature control systems for passive cooling of battery modules. A thermal management system is presented for passively cooling an electrical component stored inside a module housing. The thermal management system includes a cooling chamber that movably attaches adjacent a module housing that contains an electrical component, such as a rechargeable battery module. The cooling chamber contains a sublimable cooling agent, such as dry ice. A biasing member biases the cooling chamber away from the module housing. A smart material actuator is attached to and interposed between the cooling chamber and module housing. The smart material actuator extracts thermal energy from the module housing and, once heated to a phase transformation temperature, contracts and thereby pulls the cooling chamber into contact with the module housing.

The invention relates to the use of a polymeric-inorganic nanoparticle composition as a heat transfer fluid in battery or other electrical equipment systems. The electrical equipment can be in particular electric batteries, electric motors, electric vehicle transmissions, electric transformers, electric capacitors, fluid-filled transmission lines, fluid-filled power cables, computers and power electronics such as electric power converters.

Traction battery thermoplate assembly, comprising: a structure (162) which has edge regions (172) that define a cavity and is configured to support an array of battery cells (88, 150, 160); a thermal plate (90, 154, 174) which is located inside the cavity and adjacent to the battery cell row (88, 150, 160); a spring assembly (178) which is installed within the cavity between the structure (162) and the thermal plate (90, 154, 174) and is configured such that a force is exerted on the thermal plate (90, 154, 174) so ​​that the thermal plate (90, 154, 174) contacts the battery cell array (88, 150, 160) in order to transfer heat between the battery cell array (88, 150, 160) and the thermal plate (90, 154, 174); and wherein the spring assembly (178) has a body (220, 230) which defines several tabs (222, 232) configured to extend outwards from a plane defined by the body (220, 230) or to extend in a wave-like manner above and below a plane defined by the body (230).

The present disclosure provides a temperature control device and a control method for the temperature control device and a computer storage medium. The control method includes: determining that a first predetermined condition is satisfied, controlling a main refrigerant path to be in communication with a second refrigerant branch, to enable a heat accumulator to store energy; obtaining an outlet water temperature of a main heat transfer path; and based on the outlet water temperature being less than a first set value and determining that a second predetermined condition is satisfied, controlling the main heat transfer path to be in communication with a second heat transfer branch, to enable the heat accumulator to release heat. According to the control method of the present disclosure, a refrigerant system is controlled to operate, and the main refrigerant path is controlled to be in communication with the second refrigerant branch, to store heat in the heat accumulator. When a battery pack has a heating demand, that is, when the outlet water temperature of the main heat transfer path is less than a first determined temperature, the main heat transfer path is controlled to be in communication with the second heat transfer branch. This allows the heat stored in the heat accumulator to be transferred to the battery pack through the second heat transfer branch and the main heat transfer path, to compensate for insufficient heating at an initial start-up stage of a compressor and meet the heating demand of the battery pack.

The invention relates to the technical field of thermal batteries, and discloses a method for improving the safety of a thermal battery pack, which is characterized in that a heat conduction layer and a rapid heat dissipation system are sequentially arranged outside a unit thermal battery or a battery pack, and the heat conduction layer conducts out and uniformly disperses heat generated by the battery; the phase-change material layer in the rapid heat dissipation system absorbs heat to control the temperature range, and the cold circulation device maintains the functionality of the phase-change material and carries out redundant heat. On the premise that the weight and the size of the battery are not obviously increased and the performance of the battery is not influenced, the safety performance of the thermal battery pack is greatly improved, and the thermal battery pack adapts to extreme mechanical and temperature environments and is suitable for high-power and long-time discharge type thermal batteries.

Provided is a temperature control device and a control method therefor, a computer storage medium, and a heating and ventilation device. The control method includes: controlling a refrigerant main path to be in communication with a second refrigerant branch; obtaining an outlet temperature of a cooling liquid main path; and controlling the cooling liquid main path to be in communication with a second cooling liquid branch in response to the outlet temperature being greater than a first set value. According to the control method of the present disclosure, a refrigeration unit is controlled to operate, and the refrigerant main path is controlled to be in communication with the second refrigerant branch, to store cooling capacity in a cold storage device. When a battery pack has a cooling capacity demand, the cooling liquid main path is controlled to be in communication with the second cooling liquid branch, to transport the cooling capacity stored in the cold storage device to the battery pack through the second cooling liquid branch and the cooling liquid main path, to make up for insufficient cooling supply in an initial startup stage of a compressor and satisfy the cooling capacity demand of the battery pack.

Described herein are energy storage systems comprising battery units and low-oxygen enclosure units that form enclosed environments around the battery units. Also described are methods of operating such energy storage systems such as achieving and maintaining low oxygen concentrations in the enclosure units (e.g., less than 100 ppm) and other conditions (e.g., moisture, temperatures) while supporting battery unit operations (e.g., heat dissipation, degassing). An enclosed environment may have a volume of at least 50 m3, sufficient for a battery unit with a capacity of at least 1 MWh. In addition to environment purging capabilities, the enclosure unit comprises an oxygen-getter unit (e.g., molten media) which allows to reduce the number of purging cycles and addresses possible oxygen ingress (e.g., through the enclosure walls and / or outgassing). In some examples, the enclosure unit provides efficient heat dissipation to the external environment by reducing insulation / enhancing heat transfer through the enclosure walls.

The application discloses a heat dissipation device, a battery pack and an energy storage device. The heat dissipation device comprises a liquid cooling plate, the liquid cooling plate comprises a liquid inlet, a liquid outlet and a cooling channel communicated between the liquid inlet and the liquid outlet, and a uniform temperature plate is cross-connected with the liquid cooling plate. The heat dissipation device can not only dissipate heat for the battery cell in contact with the liquid cooling plate, but also dissipate heat for the uniform temperature plate, so that the uniform temperature plate further dissipates heat for the battery cell, the heat dissipation area of the battery cell is ensured, and the cooling performance is improved.

The invention relates to a novel cooling system integrated into lithium-ion (Li-ion) batteries. This system comprises two flexible liquid-cooling plates configured to dissipate heat generated by the cylindrical Li-ion batteries, in particular heat accumulated at the center thereof. These flexible plates incorporate a specific mixture of water and glycol, thereby optimizing their thermal conductivity while preventing corrosion and algal growth. The cooling process relies on liquid convection, thereby ensuring optimal battery operation and extending battery service life.

The present application relates to a kind of composite thermal insulation materials and thermal protection method for lithium sub-battery, belong to battery thermal protection technology.The present application provides a kind of thermal insulation scheme of disposable lithium sub-battery, through the five-layer thermal insulation structure of shell-flexible aerogel felt-aluminum foil paper-air-EVA foam-aerogel powder-battery, the constant temperature of lithium battery is maintained when discharging, especially for lithium battery in the case of using in the summer high temperature exposure or winter extremely cold environment, can effectively improve the discharge voltage of battery, increase the discharge capacity of battery, maintain the temperature of battery, and the electrical equipment can work normally.

The invention provides a battery shock cooling device and method for preventing thermal runaway of a thermal battery, the device comprises a shock cooling cavity, a chuck, a detection device, a data collector and a controller, one side of the shock cooling cavity is provided with a nozzle for spraying a refrigerant; the chuck is rotationally connected with the shock cooling cavity and is used for placing a thermal battery; the detection device is attached to the surface of the thermal battery and is used for detecting the temperature of the thermal battery; the data acquisition unit is used for acquiring a voltage signal of the thermal battery and detection data of the detection device; and the controller is used for controlling the chuck to rotate according to the voltage signal and the detection data, so that the highest temperature point of the thermal battery is opposite to the nozzle. The method has the advantages that in the thermal battery testing process, the thermal battery in the thermal runaway critical state is rapidly cooled to achieve shock cooling, thermal runaway is stopped and interrupted, potential safety hazards are reduced, and the safety of testing personnel and equipment is guaranteed.

This alkaline dry battery comprises: a bottomed cylindrical case having a cylindrical side part and a bottom part provided with a positive electrode terminal part; a hollow cylindrical positive electrode that touches the inside of the case; a negative electrode that is filled in a hollow section of the positive electrode and that contains a negative-electrode active material containing zinc; a separator disposed between the positive electrode and the negative electrode; an alkaline electrolytic solution; and a sealing unit. The alkaline electrolytic solution is included in the positive electrode, the negative electrode, and the separator. The sealing unit is provided with a negative electrode terminal part, and covers an opening of the case. A gap between the negative electrode and the sealing unit and / or a gap between the negative electrode and the bottom part of the case is filled with an additive. The additive contains a polyethylene glycol compound having a melting point of 46°C or greater.

Provided is a temperature control device and a control method therefor, a computer storage medium, and a heating and ventilation device. The control method includes: controlling a refrigerant main path to be in communication with a second refrigerant branch; obtaining an outlet temperature of a cooling liquid main path; and controlling the cooling liquid main path to be in communication with a second cooling liquid branch in response to the outlet temperature being greater than a first set value. According to the control method of the present disclosure, a refrigeration unit is controlled to operate, and the refrigerant main path is controlled to be in communication with the second refrigerant branch, to store cooling capacity in a cold storage device. When a battery pack has a cooling capacity demand, the cooling liquid main path is controlled to be in communication with the second cooling liquid branch, to transport the cooling capacity stored in the cold storage device to the battery pack through the second cooling liquid branch and the cooling liquid main path, to make up for insufficient cooling supply in an initial startup stage of a compressor and satisfy the cooling capacity demand of the battery pack.

A power management unit architecture including a set of batteries connected to a load via a bus; a controller in operative communication with the batteries; a telemetry unit in operative communication with the controller and the batteries; at least one power switch in operative communication with the controller, the batteries and the bus; a squib unit operatively connected to the batteries; wherein the controller is configured to pull a battery current from a first battery and drive the first battery current into a second battery responsive to a predetermined current.

The invention discloses a shunting structure, an immersed battery liquid cooling system and electric equipment. The shunting structure comprises a liquid guide pipe, a flow guide plate and a flow guide plate, the flow dividing cavity is communicated with the liquid guide pipe, the flow dividing cavity comprises a first end and a second end which are oppositely arranged, a plurality of liquid guide holes are formed in the flow dividing cavity from the first end to the second end, and the cross sectional areas of outlets of the liquid guide holes are gradually increased in the direction from the first end to the second end. The battery cooling effect can be improved.

The invention provides a series heating type thermal battery positive electrode capable of supplying heat and free of voltage spike, the positive electrode material is composed of a transition metal sulfide, a eutectic salt electrolyte and an active lithium-containing material, the positive electrode material enters a heating state after reaching the initial ignition temperature of positive electrode powder to provide heat for a thermal battery, and the positive electrode material does not need high-temperature pre-lithiation treatment, so that the service life of the thermal battery is prolonged. Therefore, the condition of no voltage peak at the initial activation stage can be realized. The tandem type heating process comprises the following steps: 1) inputting an external activation signal into the ignition heating layer to heat the single batteries of the thermal battery to the initial ignition temperature of the positive electrode layer, and 2) starting to supply heat by the positive electrode layer to enable the electrolyte in the isolation layer to reach the melting temperature and enter a working state. Compared with a traditional thermal battery positive electrode, the composite positive electrode can reduce the use amount of a heating layer, increase the proportion of an electrode material and improve the specific characteristic of a thermal battery, high-temperature pre-lithiation treatment of the positive electrode is not needed, the preparation efficiency of the positive electrode material can be effectively improved, and the preparation cost is reduced.

A high-power discharge lithium fluoride battery system includes a zinc-silver battery pack formed by n zinc-silver battery cells connected in series, and a lithium fluoride battery pack formed by n-1 lithium fluoride battery cells connected in series, where n is an integer and n≥2; two adjacent zinc-silver battery cells are connected to one lithium fluoride battery cell; the positive terminal of the zinc-silver battery pack is connected to the positive output terminal of an electrical connector via a contactor; the negative terminal of the zinc-silver battery pack is connected to the negative output terminal of the electrical connector via a diode; the positive terminal of the lithium fluoride battery pack is simultaneously connected to the active terminal of the contactor and the positive output terminal of the connector via a control switch; the negative terminal of the lithium fluoride battery pack is simultaneously connected to the active terminal of the contactor and the negative output terminal of the connector via a diode. The power system provided by this invention achieves both the goal of zinc-silver batteries operating below 0°C and the goal of high-power discharge of the lithium fluoride battery pack, while simultaneously solving the problems of lithium fluoride battery cell swelling and thermal runaway caused by heat accumulation.

The invention relates to an electrical power source comprising two flow batteries (1, 2), which are held at different temperatures (T1, T2) from one another and the potential difference of which can be tapped as useful voltage. The electrolyte liquids (15, 16) are conducted comprehensively across the two flow batteries (1, 2). A heat store (42) is additionally incorporated into the energy source and the electrolyte liquids (15, 16) are conducted through said heat store so that they have their respective temperatures (T1, T2) on the input side of the respective flow batteries (1, 2). The heat store (42) is held in the upper region at the higher of the two temperatures (T1, T2) by feed elements (29) arranged in the upper region and in the lower region at the lower of the two temperatures (T1, T2) by feed elements (29) arranged in the lower region. The temperature profile therebetween is established in accordance with the state of charge of the heat store (42).

The application discloses a low-internal-resistance lithium dry battery and a preparation process thereof, and relates to the technical field of battery preparation. The contact mode of a voltage conversion unit and a lithium battery positive electrode is optimized, multi-point contact is adopted, and conductive liquid is filled to reduce the contact resistance. Meanwhile, a temperature compensation mechanism is realized by using a thermal expansion piece to ensure the stability of the electrical contact at different temperatures. In addition, the battery is designed with a heat dissipation system combining a heat dissipation piece and a phase change heat absorption material, which can automatically adjust the heat dissipation efficiency according to the temperature change. The preparation process of the battery comprises the preparation of a lithium battery unit and a voltage conversion unit, the installation of a thermal expansion piece, the assembly of the voltage conversion unit and the lithium battery unit, and the packaging of a battery shell. The battery not only has the characteristics of low internal resistance and high efficiency, but also has excellent heat management performance and safety, and is suitable for the power supply demand of small-power electronic products.

A battery system and method of assembling the battery system is provided. The battery system includes a thermally conductive base member, a thermal transfer member, thermally conductive adhesive portion, and a battery module. The thermal transfer member has a metal plate with a top portion and a bottom portion. The bottom portion of the metal plate is disposed on the thermally conductive base member. The top portion of the metal plate has a first substantially arcuate-shaped groove extending inwardly into the metal plate. The thermally conductive adhesive portion is disposed in the first substantially arcuate-shaped groove of the metal plate. The battery module having a first pouch-type battery cell having a first outer housing with a first end portion. The first end portion of the first outer housing of the first pouch-type battery cell is disposed directly on the first thermally conductive adhesive portion and is disposed directly above the first substantially arcuate-shaped groove of the metal plate.

The invention relates to a method for establishing a thermally conductive connection between a plurality of battery cells (2) of a battery module (100) and a temperature control body (1), wherein in a first method step an adhesive material (3) comprising at least one first component (31) and at least one second component (32) is applied to the temperature control body (1) or to the plurality of battery cells (2), wherein during the application of the adhesive material (3) to the temperature control body (1) or to the plurality of battery cells (2) a first proportion (41) of the at least one first component (31) and / or a second proportion (42) of the at least one second component (32) is changed, wherein in a second method step the plurality of battery cells (2) is connected with the temperature control body (1) in such a way that a non-uniform material-locking connection is established between the plurality of battery cells (2) and the temperature control body (1).

A power supply has two flow cells (1, 2) which are held at temperatures (T1, T2) different from each other and whose potential difference can be taken as an effective voltage. The electrolyte (15, 16) is guided across the two flow cells (1, 2). In addition, a heat reservoir (42) is integrated in the power supply, through which the electrolytes (15, 16) are conducted in such a way that they have their respective temperatures (T1, T2) on the inlet side of the respective flow cells (1, 2). The heat reservoir (42) is held in the upper region at a higher temperature of the two temperatures (T1, T2) by means of a supply element (29) arranged in the upper region and in the lower region at a lower temperature of the two temperatures (T1, T2) by means of a supply element (29) arranged in the lower region. The temperature change therebetween is set in accordance with the state of charge of the heat reservoir (42).