151 results about "Thermal Battery" patented technology

The invention relates to a thermal management system of an electric vehicle, and provides a system capable of preheating a battery even if a driving motor of the electric vehicle is not started. According to one embodiment, a heat management system (1) for an electric vehicle is provided with: a travel motor (12); an electric pump (30) that pressurizes and conveys the heat medium; a battery (2) that supplies power to the travel motor (12) and the electric pump (30); a first circulation circuit (20B) for the heat medium, the first circulation circuit (20B) passing through the travel motor (12) and the battery (2); and a control device (3). The control device (3) is configured to drive the electric pump (30) to pressurize and feed the heat medium to the first circulation circuit, heat the heat medium by the electric pump (30), and heat the battery (2) by the heat medium when a predetermined low-temperature condition is satisfied before the travel motor (12) is started.

The invention provides a pouring mold for thermal battery shell processing, and belongs to the technical field of thermal battery processing. Comprising a mold body, a fixed mold body is arranged at the top end in the mold body, a movable mold body is arranged at the bottom end in the fixed mold body, pouring gates are formed in the bottom ends of the periphery of the fixed mold body, mold cavities are formed in the centers of the contact surfaces of the fixed mold body and the movable mold body, and exhaust grooves are formed in the four corners and the opposite sides of the outer sides of the two mold cavities; an auxiliary pouring assembly is arranged in the bottom end of the fixed mold and used for assisting in material pouring. A vacuum pumping assembly is arranged on the outer side of the auxiliary pouring assembly and is used for pumping gas in the cavity; a condensation assembly is arranged at the bottom end of the interior of the movable mold and used for cooling the movable mold. And the vacuum pumping system is communicated with the exhaust groove, gas in the cavity is pumped before pouring, bubble retention is reduced, and the compactness of the shell is improved.

A heating system includes a thermal battery having a storage container configured to hold a first fluid and an opening configured to substantially expose the first fluid to atmospheric pressure. A fluid conductor is disposed through the first fluid and extends from an inlet point at the storage container to an outlet point at the storage container. The fluid conductor is configured to receive a second fluid at a first temperature at the inlet point and to supply the second fluid at a second temperature higher than the first temperature at the outlet point. Thermal energy stored in the first fluid is transferred to the second fluid through the fluid conductor while the first fluid remains substantially non-pressurized. The arrangement enables efficient on-demand heating while decoupling thermal storage from pressurized fluid delivery.

The invention belongs to the technical field of thermal batteries, and particularly relates to a preparation method and application of a copper fluoride-based heterojunction thermal battery positive electrode material. According to the invention, fluorides with different phases and different band gaps are utilized to form a heterogeneous interface microcosmically, an electron circulation directional electric field is formed at the inhibition interface, migration of electrons and ions is accelerated, and the ion characteristics of the fluorides are improved. According to the thermal battery positive electrode material provided by the invention, the voltage of a unit battery can be remarkably increased, charge and ion transfer of the positive electrode material can be improved, so that the material can bear large pulse current and has relatively high specific capacity, and the material has good adaptability to existing electrolytes in the market at present and has a relatively high voltage platform and relatively high specific capacity. According to the invention, the conductivity of the reaction product is further enhanced by using the copper elementary substance generated by the preferential reaction of copper fluoride, and an ion transmission channel is constructed by using the copper elementary substance generated by the preferential reaction of copper fluoride as a support frame, so that the copper fluoride-based composite material has high-potential and high-power discharge capability.

This invention relates to the field of battery management unit technology for new energy vehicles, specifically to a BDU assembly and battery pack. The technical solution includes a buffer-cooling battery housing, a BDU assembly, and a battery pack. The buffer-cooling battery housing includes a bottom outer shell, a rear BDU shell mounted on the rear end of the top surface of the bottom outer shell, and battery side shells mounted on both sides of the top surface of the bottom outer shell. A breakage deflection energy-absorbing structure is installed between the battery side shells and the rear BDU shell. The breakage deflection energy-absorbing structure includes a fixing clip, and a ramp heat exchange duct is located inside the rear BDU shell. The beneficial effect of this invention is that when the rear BDU shell is subjected to a severe impact, the fixing clip will break, and then the rear BDU shell will push the BDU assembly to slide along the surface of the ramp heat exchange duct to the upper part of the battery pack. Simultaneously, the rear end of the bottom outer shell, the rear end of the top outer shell, and the buffer-folding heat-conducting structure will deform to absorb the impact force during the collision, thereby protecting the BDU assembly.

A monitor is provided, which is capable of continuously monitoring a monitoring target in a batteryless and maintenance free manner even with a small storage capacity. The monitor is a device using, as a sensor, a thermal battery including a thermoelectric power generation element which outputs a voltage according to a temperature difference between a temperature of an atmosphere covering the monitoring target and a temperature of a contact part with the monitoring target. The monitor includes a boost circuit outputting a boost voltage obtained by boosting a voltage input from the thermal battery; an energy storage element connected to an output port of the boost circuit, and storing power supplied from the thermal battery as a sensor and boosted by the boost circuit; a voltage detection circuit outputting a control signal which includes signal levels respectively corresponding to whether or not the detected boost voltage exceeds a predetermined voltage; and a switch opening and closing a path connecting a first terminal and a second terminal connected to the output port.

An ablutionary system having a means configured to receive a water supply 107 and operable to provide a principle stream 109 at a controlled temperature, wherein the means includes a thermal battery 1

The application discloses a kind of modular thermal battery energy storage devices based on biochar and preparation method thereof.The device includes heat preservation shell, biochar-based composite heat storage core, electric heating system, heat exchange release system and optional thermal photovoltaic (TPV) power generation unit.The heat storage core is made of biochar from agricultural and forestry waste by low-temperature pyrolysis, crushing, and compounding with graphite powder and silicon carbide particles, then high-temperature graphitization treatment is carried out, which can store heat at 1500℃-2200℃ for a long time, the mass loss rate is less than 0.5% at 1800℃ for 100 hours, and the thermal conductivity is not less than 8 W / (m·K).The application uses biochar, which is cheap and has carbon negative characteristics, to replace traditional graphite heat storage medium, significantly reducing material cost and life cycle carbon footprint, and realizing rapid deployment through modular design, suitable for industrial high-temperature steam, drying, chemical reaction and other scenes of heat energy storage and release, and can realize combined with TPV unit to realize heat and power supply.

The application discloses a kind of refrigerant direct cooling direct heating battery systems and control method, system includes control unit, detection unit, execution unit and refrigerant circulation loop;Refrigerant circulation loop includes sequentially through pipeline connection and form circulation loop compressor, second heat exchanger, the cold plate of battery system and first heat exchanger;Detection unit includes pressure detection piece and temperature detection piece;Execution unit includes first electromagnetic valve, first expansion valve, second expansion valve and third electromagnetic valve;First electromagnetic valve is connected in parallel on second heat exchanger;First expansion valve is located between first heat exchanger and the cold plate of battery system;Second expansion valve and third electromagnetic valve are connected in parallel to each other and located between cold plate and the low pressure side of first heat exchanger;Control unit is used to control execution unit, compressor, second heat exchanger and first heat exchanger according to temperature signal and pressure signal, to realize direct cooling mode or direct heating mode.The application has the advantages of accurate control, efficient heat distribution etc..

The invention provides a battery and an electric device. The battery comprises a plurality of battery packs, at least two lateral heat exchange assemblies and a battery box. The plurality of battery packs are arranged in sequence, and each battery pack comprises a plurality of single batteries. Lateral heat exchange assemblies are arranged between at least part of the battery packs and the adjacent battery packs in the multiple battery packs, each lateral heat exchange assembly comprises a lateral heat exchange plate and a current collector arranged at at least one end of the lateral heat exchange plate, and the lateral heat exchange plates are provided with heat exchange runners where heat exchange media flow. The current collector comprises a current collecting cavity in fluid circulation with the heat exchange flow channel and a current collecting pipe used for guiding a heat exchange medium into the current collecting cavity or guiding the heat exchange medium out of the current collecting cavity so as to conduct heat exchange on the battery pack. The battery box is provided with a containing cavity used for containing the multiple battery packs and comprises a bottom plate located at the bottoms of the multiple battery packs. The collecting pipes of all the lateral heat exchange assemblies extend in the height direction and are connected with the bottom plate.

The invention relates to the field of thermal battery manufacturing, and discloses automatic punching equipment and method for an asbestos ring for a thermal battery. The equipment comprises a rack, a movable platform, a punching mechanism and a ring collecting mechanism. The moving platform is driven by a servo motor to achieve accurate positioning and pressing of asbestos paper. The punching mechanism drives an inner cutting die and an outer cutting die which are coaxially arranged through an impact air cylinder to complete punching. During demolding, the jacking driving mechanism drives the inner cutting die to eject out the ring piece, the outer diameter of the asbestos ring is larger than the caliber of the outer cutting die through the elasticity of the asbestos ring, and therefore the asbestos ring automatically falls off and is collected through the ring collecting device. The full-process automatic production is realized, the problems of low manual punching efficiency and poor product consistency are solved, and the production efficiency and the product quality are remarkably improved.

The utility model discloses a thermal battery activation control tool which comprises an air cylinder mounting plate, an upper mounting plate, a bottom plate and an activation assembly, a pressure reducing valve, an electromagnetic valve and an air cylinder are arranged on the air cylinder mounting plate, the air cylinder mounting plate is connected with the upper mounting plate through a screw rod, the upper mounting plate is connected with the bottom plate through a supporting rod, and the bottom plate is connected with the activation assembly. The activation assembly is arranged on the thermal battery, and the upper mounting plate is connected with the thermal battery. The air pressure is adjusted through the pressure reducing valve, air flows to the electromagnetic valve from the air pipe, the electromagnetic valve is remotely controlled to change the air flow channel so as to control stretching and retracting of the air cylinder, the drawing ring is installed on the air cylinder, the drawing ring is connected with the plug pin through the drawing line, and the plug pin is pulled out and is not limited by the plug pin due to movement of the air cylinder. And the activation rod impacts the thermal battery primer under the guide of the sliding chute and the action of the spring to complete battery activation. And an operator can remotely control the tool, so that the safety of the activation process is ensured.

The invention relates to an n-p type hydrogel thermogalvanic battery module as well as preparation and application thereof. The n-p type hydrogel thermogalvanic battery module comprises an n type hydrogel thermogalvanic battery and a p type hydrogel thermogalvanic battery, wherein hydrogel in the n-type hydrogel thermogalvanic battery is a network skeleton, the n-type hydrogel thermogalvanic battery is constructed by Fe < 3 + > / Fe < 2 + > redox ion pairs, hydrogel in the p-type hydrogel thermogalvanic battery is a network skeleton, and Fe < 3 + > / Fe < 2 + > and carboxylate are complexed to construct the p-type hydrogel thermogalvanic battery. The n-p hydrogel pyrogalvanic battery module provided by the invention has high thermoelectric performance and can be applied to the field of information encryption.

The invention provides a steam supply system for a thermal battery. The steam supply system comprises a high-temperature heat exchange medium storage tank; a high-temperature inlet of the first heat exchanger is connected with an outlet of the high-temperature heat exchange medium storage tank, and the low-temperature side of the first heat exchanger is configured to provide energy needed by steam. An inlet of the low-temperature heat exchange medium storage tank is communicated with a high-temperature outlet of the first heat exchanger; according to the heat pump circulation unit, a low-temperature inlet of a second heat exchanger communicates with an outlet of a low-temperature heat exchange medium storage tank, and a low-temperature outlet communicates with a high-temperature heat exchange medium storage tank. An inlet of the low-temperature expansion machine communicates with a high-temperature outlet of the second heat exchanger. An inlet of the high-temperature compressor communicates with an outlet of the low-temperature expansion machine, and an outlet of the high-temperature compressor communicates with a high-temperature inlet of the second heat exchanger. By integrating the heat pump cycle unit, the power cycle unit, the steam supply unit and the fused salt heat storage and release unit, multifunctional cooperation of electricity-heat conversion, heat energy storage, electricity generation and steam supply is achieved, and the system is suitable for power grid peak regulation, industrial waste heat utilization, regional energy supply and other scenes.

The utility model relates to a large-area heat dissipation battery pack, which belongs to the technical field of energy storage and comprises a central channel cold plate and side cold plates, a plurality of side cold plates capable of being attached to battery cells are distributed on two sides of the central channel cold plate, and a liquid inlet and a liquid outlet are vertically distributed at the end of the central channel cold plate. An upper cavity and a lower cavity which are respectively communicated with the liquid inlet and the liquid outlet are distributed in the central channel cold plate up and down; a flow channel is arranged in the side cold plate and communicated with the upper cavity and the lower cavity, or the upper cavity and the lower cavity are communicated, and the side cold plate is provided with a heat conduction structure connected with the central channel cold plate. The heat dissipation efficiency is improved, the battery pack is prevented from being damaged, the service life is prolonged, and the safety is enhanced.

A battery management system includes thermal batteries, sensors, a clock, a processor, and memory storing a data structure, and is configured to receive energy parameters and time data, calculate a rate of energy usage of the thermal batteries based on the received data, and execute battery commands to activate or disable selected thermal batteries. Energy usage data can be stored as individual data points over time, and battery commands can be received from an external computer. The system determines when to activate a second battery based on a predetermined threshold of estimated electrical energy of a first thermal battery. A battery management method includes receiving signals for voltage, current, temperature, and time duration, estimating electrical energy based on these parameters, and activating a second battery when the estimated energy falls below a predetermined threshold.

A kind of honeycomb type battery module thermal management system integrated thermoelectric device and PCM, the system shell, hexagonal honeycomb battery heat conduction frame is installed in shell interior, battery heat conduction frame center is equipped with pipe hole, liquid cooling pipe passes through pipe hole, liquid cooling pipe is connected with heat exchanger to carry out heat exchange.The outer wall surface of battery heat conduction frame is all closely attached with thermoelectric device, the hot end of thermoelectric device is closely attached with liquid cooling plate, and liquid cooling plate is connected with heat exchanger to carry out heat exchange.Battery heat conduction frame is distributed with multiple grooves at equal intervals, respectively for installing battery, PCM6, fin, groove is filled with PCM, fin is closely attached on battery, and PCM6 is wrapped around battery and fin.The application carries out the thermal management of battery by the active refrigeration / heat function of thermoelectric device and the temperature invariable characteristics of phase change material PCM when phase change, so that battery is maintained in specified operating temperature range;It improves the temperature distribution uniformity of battery unit, prevents battery thermal runaway, improves battery life and stability in different working conditions.

The utility model discloses a temperature-difference-resistant battery box which is characterized in that firstly, the stable support of electrical components in the battery box is ensured by utilizing a support assembly through a support piece and a reinforcing rib structure, and secondly, the external physical impact is effectively prevented by utilizing a protection assembly through an enclosure bulkhead and a sealing piece. And finally, electromagnetic interference is effectively shielded by utilizing the shielding assembly through the design of a top cover and a partition plate, and the whole structure is fastened through bolts, so that tight connection among the assemblies is ensured, the durability, the heat insulation property and the safety of the battery box are enhanced, and the battery box is suitable for application scenes needing high protection, heat insulation and electromagnetic shielding.

This invention relates to a high-interfacial-wetting cathode material and its preparation method in the field of thermal battery technology. The material comprises a cathode active material and a halide cathode additive, wherein the halide cathode additive accounts for 5% to 20% by mass. The cathode active material is a sulfide cathode, including one or more of FeS2, CoS2, and NiS2. The halide cathode additive is a metal halide, including one or more of nickel chloride, cobalt chloride, nickel fluoride, and copper fluoride. This solution significantly reduces the interfacial impedance between the cathode and the electrolyte, improving power performance and discharge capacity.

The invention discloses a charging management and control method and system based on a multi-bin charging cabinet device, relates to the technical field of battery charging management and control, and solves the problem of disconnection between charging current and heat dissipation capability in the prior art by directly associating a heat conductivity coefficient of a cabinet body with a constant current lifting coefficient through heat dissipation performance simulation. The setting of the constant current does not depend on a fixed mode or a single electric quantity parameter any more, but is based on the actual bearing capacity of the heat dissipation structure, so that heat accumulation in a cabinet, accelerated aging of a battery and potential safety hazards caused by the fact that the current setting is too high and exceeds the heat dissipation limit are avoided, and the problem of low charging efficiency caused by the fact that the current setting is too low is solved; meanwhile, the target constant current is subjected to dual dynamic calibration by using the nominal parameters of the battery and the heat conductivity coefficient of the cabinet body, so that the accuracy of current regulation and control is further improved, the real-time matching of the battery characteristics and the heat dissipation capability in the charging process is ensured, and the charging efficiency in the constant current stage is maximized on the premise of ensuring the charging safety.

The invention discloses a flexible ionic thermal battery and a preparation method thereof, the flexible ionic thermal battery comprises an ionic gel electrolyte and asymmetric electrodes, and the asymmetric electrodes are an activated carbon fiber cloth cathode and a polyaniline anode; the activated carbon fiber cloth cathode is obtained by activating carbon fiber cloth with a mixed solution of concentrated nitric acid and concentrated sulfuric acid; the ionic gel electrolyte is obtained by soaking acrylamide and acryloyloxyethyl trimethyl ammonium chloride dual-network gel in an electrolyte solution of FeCl3 / HCl. According to the flexible ionic thermal battery disclosed by the invention, a built-in potential field is constructed under a near-isothermal condition through electrode-electrolyte interface reaction characteristic difference, and decoupling of dependency of the potential field and a temperature field in a traditional quasi-solid-state ionic thermal battery is realized, so that the ionic thermal battery can finish thermal charging through near-isothermal temperature rise in an ultrathin form within 1mm, and the flexible ionic thermal battery has a wide application prospect. And stable discharge output is realized in a constant-temperature stage.

A solar energy collection system comprising: a plurality of tracked Fresnel lens arrays; a corresponding plurality of thermal cells positioned to receive solar energy focused by the respective plurality of tracked Fresnel lens arrays; and a working fluid circulation system that circulates a working fluid through the plurality of thermal cells to a discharge point. The discharge point comprises a power conversion unit such as a thermal engine and generator. A thermal housing comprises a first trough-shaped portion that accepts at least one thermal storage device; a second trough-shaped portion providing an air channel for flow of air; a baffle that redirects flow of air through the second trough-shaped portion to the first trough-shaped portion; and a top plate including at least one aperture that enables communication of heat into the first trough-shaped portion.

This utility model belongs to the field of batteries, specifically a large-capacity battery module and battery pack. It overcomes the problem of excessive localized heat at the terminals of existing individual batteries, leading to thermal runaway. The large-capacity battery module includes a battery module and two heat exchange components. The battery module includes individual batteries; each heat exchange component includes a heat exchange component body; the heat exchange component body has at least one cooling channel; the inner wall of the cooling channel is provided with an insulating layer; the two heat exchange components are welded to the polarity terminals of n individual batteries respectively, realizing parallel connection between the individual batteries, and heat exchange is achieved between the cooling water in the cooling water channel and the polarity terminals. The battery pack includes multiple large-capacity battery modules; the heat exchange components on each large-capacity battery module are interconnected to form a battery pack liquid circuit system, realizing heat exchange within the battery pack. The heat generated by the polarity terminals is conducted to the heat exchange components in close contact with them and dissipated through heat exchange, achieving efficient heat dissipation.

The invention discloses a thermal regeneration flow battery based on a cold and hot battery function asymmetric structure design and a use method, and belongs to the field of low-grade heat energy recovery and electrochemical energy conversion, and the thermal regeneration flow battery comprises a cold battery running at a low temperature, a thermal battery running at a high temperature, an electrolyte circulating system and an external circuit. The core of the invention lies in that aiming at the inherent difference of a cold battery and a thermal battery in thermodynamic driving force, reaction kinetics path and interface reaction mechanism, corresponding key functional units in the cold battery and the thermal battery, such as an electrode material and interface structure, an electrode microstructure, diaphragm characteristics, electrolyte local environment or operation conditions, and the like, are subjected to thermal power conversion. Differentiated structure configuration or parameter setting is carried out, so that collaborative optimization of cold and hot end reactions is realized. According to the method, the system polarization is remarkably reduced, the output power density and the thermoelectric conversion efficiency are improved, the long-term operation stability is enhanced, and a new technical approach is provided for efficiently recycling low-grade heat energy.

The invention discloses a thermal battery energy storage and supply system utilizing flue gas waste heat, and solves the problems that in the prior art, a coal-fired power plant waste heat utilization system generally lacks large-scale heat storage capacity, so that recycled heat cannot be transferred in a space-time mode, and supply and demand matching performance is poor. The thermal battery system exchanges heat with the flue gas waste heat absorption system through an air-water heat exchanger, the thermal battery system exchanges heat with the heat storage and release system through an air-conduction oil heat exchanger, and the flue gas waste heat absorption system absorbs flue gas waste heat and transmits the flue gas waste heat to the thermal battery system. The thermal battery system conducts temperature rise and quality improvement on flue gas waste heat and then transmits the flue gas waste heat to the heat storage and release system, and the heat storage and release system stores the flue gas waste heat obtained after temperature rise and quality improvement and generates heat supply steam to supply heat to the outside. According to the flue gas waste heat recycling device, waste heat deep recycling can be achieved, flue gas waste heat is stored, heat is supplied to the outside when needed, and the flue gas waste heat utilization rate is further increased.

This utility model provides a heat-dissipating battery pack, belonging to the field of new energy battery technology. A heat-dissipating battery pack includes a cell module, two end plates, two heat-conducting components, and a steel strip. The two heat-conducting components are respectively disposed on two sides of the cell module. Because the heat-conducting components are disposed on both sides of the cell module and in contact with the two side walls of the cell module, the heat generated by the cell module is conducted from the cell module to the outside through the heat-conducting components, and then cooled by the heat dissipation mechanism provided on the battery pack shell. This solves the technical problem in the prior art where heat cannot be dissipated from the cell module in a timely manner, causing damage to the cell. The heat-conducting components provided by this utility model include a heat sink and heat dissipation pads. The heat dissipation pads, made of phase change material, can not only dissipate the heat generated by the cell module but also insulate the cell module. When the temperature is too low, the heat dissipation pads release heat to maintain the normal operating temperature of the cell module.

The invention belongs to the technical field of secondary batteries, and particularly relates to an integration method of a heat dissipation battery pack of a soft package battery. Two same U-shaped metal shells (1) easy to dissipate heat are buckled and locked in a staggered manner to form the efficient heat dissipation metal shell of the battery pack; furthermore, a metal heat-conducting fin (3) is placed on each single soft package battery, the two ends of each metal heat-conducting fin are folded in a right-angle manner to form side plates, and each side plate is in lap joint with the U-shaped metal shell which is easy to dissipate heat, so that the heat of the plurality of soft package batteries is transferred to the efficient heat-dissipating metal shell through the metal heat-conducting fins; a rapid and efficient heat dissipation channel is formed, rapid heat dissipation can be achieved while the soft package battery is locked, heat management of a battery pack and a system is facilitated, the safety of an energy storage system is enhanced, and the service life of the battery system is prolonged.

This utility model provides a testing fixture for a direct-cooling and direct-heating battery pack cold plate, belonging to the field of new energy batteries. The fixture includes a cooling and heating device and a cold plate under test. The cooling and heating device is mounted on the cold plate. Multiple temperature sensors and multiple flow channels are arranged at the bottom of the cold plate, with the temperature sensors positioned between the flow channels. The cooling and heating device includes a semiconductor group, a first metal conductor, and a second metal conductor. The semiconductor group includes N-type semiconductors and P-type semiconductors. The first metal conductor is located on top of the semiconductor group and connects the N-type and P-type semiconductors. The second metal conductor is located at the bottom of the N-type and P-type semiconductors and connects either the N-type or P-type semiconductor to an external power source. Using the direct-cooling and direct-heating battery pack cold plate testing fixture provided by this utility model can solve the problems of complex operation and low testing efficiency in existing technologies.

An apparatus includes a cargo area with a heat exchanger; a thermal battery system having a phase change material (PCM) with first and second heat exchangers embedded in the PCM; fluid conduits defining fluid passageways interconnecting the cargo area heat exchanger and the first PCM-embedded heat exchanger; and a pump creating a fluid flow through the fluid conduits between the cargo area heat exchanger and the first PCM-embedded heat exchanger. The apparatus also includes external ports configured for connecting to an external charging source for charging the PCM; and fluid conduits defining fluid passageways interconnecting the external ports and the second PCM-embedded heat exchanger. The first PCM-embedded heat exchanger, pump, and cargo area heat exchanger form part of a first closed-loop circuit for transferring heat between the cargo area and the thermal battery system. The second PCM-embedded heat exchanger and external ports do not part of the first closed-loop circuit.