Thermoelectric Cooling for EV Battery Thermal Management

A system for optimizing battery cooling in electric vehicles that enables rapid charging while maintaining battery health. The system employs advanced temperature monitoring and control to rapidly cool the battery during charging, eliminating the need for prolonged charging times. The system integrates with the vehicle's battery management system to monitor temperature and adjust cooling parameters in real-time. This enables rapid charging while maintaining battery health, reducing waiting times and enabling more efficient charging operations.

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Dual-stage thermal management system for electric vehicle batteries that integrates thermoelectric cooling modules with liquid cooling to enhance thermal performance and lifespan. The system comprises a thermoelectric Peltier cooler module positioned strategically over the liquid cooling circuit, with thermal pads separating the battery pack from electrical contact. This configuration enables precise temperature control while preventing water droplet formation on the battery surface. The dual-stage approach optimizes energy efficiency and reliability by addressing the limitations of traditional single-stage cooling systems.

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Cooling device for energy storage devices, particularly motor vehicles, that enables efficient thermal management through a novel thermal interface system. The cooling device comprises a thermally conductive plate and a thermally conductive filling layer that are integrated into the cooling plate structure. The filling layer fills the gap between the cooling plate and the energy storage device, providing a continuous thermal interface without requiring mechanical compression. This design enables the energy storage device to maintain thermal contact with the cooling plate while minimizing the forces required for assembly and disassembly.

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Battery system for managing thermal energy in batteries, particularly for grid-connected energy storage systems. The system comprises a battery module comprising multiple battery cells, a thermal conduit connecting the cells to a thermoelectric cooler, and a thermoelectric cooler itself. The thermal conduit enables controlled thermal transfer from the battery cells to the cooler, while the thermoelectric cooler efficiently dissipates generated heat. The system achieves optimal temperature management through the thermal conduit and cooler combination, enabling long-duration operation without thermal runaway risks.

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Energy storage system with integrated temperature management that controls both battery temperature and system-wide temperature using a single cooling system. The system employs a Peltier module and a fan to manage temperature across the battery pack, with the fan controlling the flow of coolant to the Peltier modules. The system achieves temperature stability through both cooling and heating modes, enabling precise control of both battery temperature and system-wide temperature. The integrated cooling system provides efficient heat transfer between the battery modules while maintaining system-wide temperature stability.

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Energy storage system with integrated temperature management for battery packs. The system employs a multi-stage cooling system that utilizes a network of Peltier elements, heat sinks, and water blocks to maintain optimal battery temperatures. The system includes a pump, coolant circulation path, and heat exchanger, with temperature sensors monitoring the coolant temperature. The system can operate in multiple modes, including preheating and cooling modes, and features a bypass system to manage heat dissipation. The system integrates with the power converter and battery management system to optimize energy storage and conversion performance.

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Battery thermal management system for electric vehicles that uses thermoelectric devices to enhance cooling of the battery pack during high temperature events like fast charging. The system has a coolant loop with a thermoelectric device that can be activated to cool the battery pack further when needed. The device has a junction between hot and cold sides. Current through the junction cools the cold side exposed to the coolant loop, enhancing battery pack cooling. The hot side is cooled by airflow. This provides additional cooling during high heat events like fast charging.

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Battery pack and thermal management method using Peltier effect and phase change materials for enhanced cooling and thermal management. The method employs a thermoelectric refrigerator and heat pipe cooling system to achieve efficient temperature regulation. The system comprises a battery module, a thermoelectric refrigerator, and a heat pipe cooling device. The thermoelectric refrigerator maintains a temperature close to the battery's operating temperature, while the heat pipe cooling device absorbs and releases heat through phase change materials. This phase change material-based cooling mechanism enables precise temperature control and efficient heat transfer, particularly in high-temperature environments.

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A constant-temperature high-power battery module that maintains optimal performance across a wide operating temperature range. The module incorporates a novel thermal management system that enables consistent cell temperature across all cells, regardless of ambient temperature variations. This is achieved through a unique thermal interface material (TIM) design that distributes heat evenly throughout the module, while maintaining cell temperature stability. The module's thermal management system ensures optimal performance in both high-temperature environments and low-temperature environments, enabling reliable operation across a broad temperature range.

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Battery thermal management device for electric vehicles that combines thermoelectric cooling with liquid cooling to address temperature extremes. The device employs thermoelectric cooling to rapidly cool the battery in high-temperature environments, while liquid cooling provides additional cooling through a temperature gradient. This dual-cooling approach enables both rapid battery temperature regulation and efficient cooling in low-temperature environments.

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Temperature management system for electric vehicle batteries that enables controlled charging operation during high-power charging cycles. The system comprises a dedicated cooling circuit integrated into the vehicle's temperature management system, which operates in conjunction with the vehicle's internal cooling system during high-power charging. The cooling circuit provides enhanced cooling capacity during charging cycles, particularly when external charging sources are used. The system enables precise temperature management of the battery during charging operations, including both high-power charging and low-temperature charging phases.

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Thermoelectric cooling coupled liquid cooling battery thermal management device and voltage regulation strategy. The device integrates a thermoelectric cooling module with a liquid cooling module, where the thermoelectric module is connected to the battery and the thermoelectric module is cooled by the liquid cooling module. The thermoelectric module's differential voltage is controlled based on the flow of the liquid cooling module's coolant, with the thermoelectric module's temperature matching the liquid cooling module's temperature. This enables precise temperature regulation of both the battery and the cooling system.

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Thermal management component for battery modules in electric vehicles that uses Peltier devices to cool/heat battery cells. The component has a heat spreader inside the module that contacts the cells, a fixed bottom plate against the module shell, fins fixed to the plate with a thermally conductive pad, and a Peltier device between the plate and fins. This allows active cooling/heating of the cells. The module has at least one of these assemblies symmetrically positioned between the module halves.

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Thermal management system for lithium-ion batteries that utilizes phase change materials to regulate temperature. The system comprises a phase change material (PCM) heat sink surrounding the battery cell, with a temperature-dependent phase change phase that absorbs and stores heat during discharge and releases heat during charging. The PCM maintains a stable temperature range between 35°C and 45°C, where the battery operates optimally, thereby preventing thermal runaway and enabling reliable operation.

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A low-temperature-resistant battery module that maintains optimal operating conditions for electric vehicle batteries in extreme cold environments. The module incorporates advanced thermal management solutions, including a phase-change energy storage component, active thermal insulation, and semiconductor refrigeration technology. The system enables controlled temperature operation of the battery pack, maximizing its performance and lifespan in winter conditions.

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A novel cooling system for high-voltage devices that eliminates the challenges of traditional thermal management solutions. The system integrates a heat sink with a heat source on a single component, featuring a thermally conductive graphite tape between them. The tape is designed with optimized thermal interface properties, enabling efficient heat dissipation while maintaining structural integrity. The graphite tape is arranged in a curved, over-bent configuration to provide optimal thermal transfer between the heat sink and the heat source, eliminating the need for separate thermal interfaces and enabling higher thermal performance compared to conventional busbar-based solutions.

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Temperature management system for electric vehicle batteries to mitigate thermal stress. The system enables precise temperature control between the battery cell temperature and ambient temperature through advanced thermal management architecture. This approach ensures optimal battery performance while maintaining the required operating parameters for safe and efficient charging and discharging.

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Integrated battery thermal management method for electric vehicles that provides efficient heating and cooling of battery packs in both low and high temperature environments. The method uses electric heating films attached to one side of the battery cells and spaced apart. The gaps between the films are filled with phase change materials like paraffin wax. In low temperatures, the heating films heat the batteries and the PCM absorbs excess heat. In high temperatures, the PCM releases latent heat to dissipate heat. This allows batteries to be maintained within a suitable temperature range for optimal performance and longevity.

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Active and passive thermal management system for power batteries that improves temperature control efficiency and reliability compared to traditional methods. The system combines active cooling like fans and refrigeration with passive phase change materials (PCMs) to maintain optimal battery temperatures. The battery pack has a metal plate attached to it, with a PCM-filled heat storage plate attached to the metal plate. Fans blow air through the PCM to cool it. A refrigeration device chills the air. Metal fins increase thermal conductivity. The PCM provides stable temperature buffering. A controller manages the active cooling and fan speeds based on battery temperature.

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Battery module design for electric vehicles that integrates cooling into the module structure itself. The module comprises a cooling system that thermally cools both the power electronics and the busbar. The cooling system is integrated into the module's structural components, with the power electronics mounted to a bottom portion and the busbar positioned between the top and bottom portions. This modular approach enables efficient cooling of both critical components while maintaining a single, enclosed enclosure.

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High-efficiency heat dissipation power battery pack that combines phase change cooling and air cooling to cool the battery pack. The pack has a thermally conductive metal frame around the battery cells that transfers heat to fins. These fins contact a phase change material with a melting point around the optimal battery operating temperature. When the battery gets too hot, the phase change material absorbs heat as it melts, preventing overheating. Air ducts around the phase change material enhance heat transfer. This allows air cooling for additional cooling when needed.

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Battery module with integrated cooling element for electric vehicles, enabling efficient heat dissipation through a single cooling element. The module comprises two identical battery packs connected in a symmetrical configuration, with the cooling element positioned between the battery contacts. The cooling element is designed to facilitate heat transfer between the battery cells and the heat-conducting plate, while maintaining electrical isolation. The cooling element's design enables direct contact between the battery contacts and the heat-conducting plate, eliminating the need for separate cooling elements. This configuration enables a single cooling element to provide comprehensive heat management for both battery cells.

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Compact thermoelectric power generation device that enables efficient conversion of thermal energy into electrical power by integrating thermoelectric devices with optimized heat transfer interfaces. The device incorporates thermoelectric elements directly onto the heat source wall, eliminating the conventional heat transfer interfaces and enabling enhanced heat exchange between the heat source and thermoelectric element. This design addresses the thermal resistance and efficiency limitations associated with traditional thermoelectric power generation systems.

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Battery module for electric vehicles with advanced thermal management that enables precise temperature control of individual battery cells. The module comprises a thermoelectric device with a thermally conductive plate and graphite ribbon, where the graphite ribbon is thermally connected to a battery cell's outer surface and the plate is thermally connected to the cell's inner surface. A remote Peltier module monitors and controls the temperature of the thermoelectric device, enabling precise temperature regulation of each battery cell through localized heat management. This design enables optimized temperature control for each individual cell while maintaining overall pack efficiency and reliability.

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Battery temperature control method and apparatus for electric vehicles that efficiently regulates battery pack temperature while minimizing energy consumption. The method involves adaptive temperature control strategies based on real-time battery pack and environment conditions. It uses a threshold for initiating cooling, compensating for current heat dissipation, verifying cooling effectiveness, and optimizing cooling path based on pack temperature trends. The adaptive control improves temperature regulation compared to fixed logic thresholds.

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A cooling device for energy storage systems that enables easy disassembly without compromising thermal performance. The cooling device features a thermally conductive heat-conducting foil and a thermally conductive filling layer that are arranged overlapping in the region where the energy storage and cooling plate meet. This overlapping design maximizes thermal contact while maintaining electrical insulation between the energy storage and cooling plate. The filling layer is specifically designed to be electrically insulating, ensuring reliable thermal contact without compromising electrical integrity. The overlapping design enables the energy storage to be separated from the cooling plate during assembly, while maintaining thermal contact and preventing thermal bridging.

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A battery with enhanced thermal management features that improves heat dissipation and prevents overheating. The battery design incorporates a specially configured heat management system that utilizes a heat radiation base, a first heat dissipation layer with fins, and a bottom plate to facilitate efficient heat transfer. The base features a strategically positioned heat sink, while the first dissipation layer incorporates heat radiating fins to enhance convective cooling. The bottom plate incorporates multiple cooling holes for enhanced thermal management. This design provides effective heat dissipation while maintaining structural integrity, enabling reliable operation in high-temperature environments.

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Battery thermostat and system for power batteries that enhances heat management through advanced cooling technology. The system comprises a compact thermostat housing containing a honeycomb structure with internal cooling channels, where the battery cells are arranged in series. The thermostat includes a temperature measurement device, heating film, and fireproof layer. The honeycomb structure is made from flame-retardant alloy material, and the cooling channels are filled with a specialized honeycomb core that enhances heat transfer while maintaining structural integrity. The thermostat provides precise temperature control while maintaining safety through its integrated fire protection features.

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Power battery pack for electric vehicles with improved thermal management. The pack features a tray with multiple battery modules stacked vertically, each with a thermal interface plate and side heat transfer plate. The side heat transfer plate connects to the side heat pipes, while the bottom plate connects to the side plate. This configuration enables efficient heat transfer between the bottom plate and side plate, with the side plate providing additional thermal interface between the side plate and the side heat transfer plate. The bottom plate and side plate are connected to a common heat pipe system, allowing for uniform heat distribution across the battery pack.

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A temperature control system for optimizing the performance of battery packs in electric vehicles. The system uses a coolant loop with a compressor, condenser, expansion valve, and heat exchangers to actively cool the battery pack. A sensor measures the battery temperature and a controller adjusts the coolant flow rate based on a threshold. If the battery temperature is below the threshold, the flow rate is reduced. If above, the flow rate is increased to improve cooling. This allows precise temperature control within the optimal range for battery performance.

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Thermal management system for electric vehicles that uses regenerative braking to actively cool key components like batteries and power converters. During regenerative braking, the traction motor generates power which is sent to temperature adjustment devices like Peltier coolers. These devices are positioned near components like batteries and converters to actively cool them. This mitigates temperature issues during discharge/charge cycles and improves overall performance and efficiency. Sensors monitor component temps, electrical characteristics, and motor speeds to optimize cooling based on real-time conditions.

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An assembly element for battery cooling and thermal runaway prevention that combines a thermally conductive block-barrier assembly with a structural design. The assembly comprises a cylindrical hole formed through the structural design, which enables rapid heat dissipation through air, liquid, phase change material, or heat pipe cooling paths. This design enables efficient heat transfer while preventing thermal runaway by creating a controlled thermal pathway. The structural design integrates the thermal barrier with the cooling mechanism, addressing the traditional thermal runaway issue by simultaneously enhancing cooling performance and preventing thermal runaway.

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Battery featuring advanced temperature management through integrated compensation heating and cooling elements. The battery comprises a plurality of individual cells electrically connected in parallel or a plurality of cell blocks which are electrically connected in parallel. Each cell or block has a basic temperature control device and a compensation heating or cooling element that can be thermally coupled to one another. The compensation elements can be used for fine temperature adjustment, both heating and cooling, and can be integrated into the basic temperature control device. This enables precise temperature control across the battery while minimizing energy loss through environmental influences.

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A method for cooling traction batteries with enhanced thermal conductivity and electrical insulation. The method involves arranging a heat-conducting mat between the heat sink and battery module, ensuring optimal surface contact through elastic expansion. This mat design eliminates the need for conventional gap fillers and electrical insulation, allowing for improved thermal transfer between the heat sink and battery module. The mat's elastic properties enable precise surface contact while maintaining structural integrity, while the heat sink provides effective thermal management.

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Battery thermal management system that uses a unique hexagonal honeycomb structure to provide efficient cooling and heating for batteries. The system has a battery module with a regular hexagonal honeycomb structure made of aluminum. The honeycomb structure has channels between adjacent hexagons that form passages filled with a heat exchange medium like water glycol. This allows efficient heat transfer between the battery and the medium. A heating and cooling device connects to the channels. A thermocouple monitors the medium temperature and feedback to a controller to regulate heating and cooling. This smart system can adapt battery temperature to hot or cold environments.

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Battery assembly module that enables efficient cooling of multiple batteries through a single liquid cooling device. The module integrates a liquid cooling system with a welding station, where positive and negative battery electrodes are connected through a common welding point. The liquid cooling system features a hollow structure with inlet and outlet ports, allowing it to distribute cooling across the battery cells. This design enables direct thermal management between the battery cells and the cooling system, eliminating the need for separate cooling channels and reducing manufacturing complexity.

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A battery box assembly for vehicles that enables high-performance battery management while minimizing power consumption. The assembly includes a battery case housing, a battery module, a heat exchanger assembly, and a phase change material storage unit. The battery module is housed within the battery case assembly, the heat exchanger assembly is partially disposed within the housing, and the phase change material storage unit is located within the battery case assembly. This configuration enables efficient temperature control of the battery case while maintaining high performance energy storage capabilities.

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Efficient cooling and heating power battery thermal management system for electric vehicles that uses phase change materials, heat pipes, and active cooling/heating devices to efficiently regulate battery temperature. The system has a battery case with cells surrounded by phase change material plates. Heat pipes connect the cells and extend out to external cooling/heating devices. Temperature sensors monitor the cells and a thermostat controls fan and heater operation. The phase change material absorbs/releases heat during charging/discharging, heat pipes transfer it, and active cooling/heating devices regulate the battery temperature.

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A thermal management system for electric vehicle batteries that enables precise temperature control through a thermoelectric heat exchanger and radiator. The system comprises a thermoelectric plate heat exchanger with two fluid flow paths, a radiator, a fan, battery packs, a water bottle, a first circulating water chestnut, and a second circulation pipe. The thermoelectric plate heat exchanger is connected to the battery pack and water bottle, while the radiator and fan are connected to the thermoelectric plate heat exchanger. The system forms two independent closed fluid circulation systems: one for heating and cooling the battery pack, and another for cooling the battery pack. The system operates through a closed-loop temperature control mechanism that maintains optimal battery operating temperature between 0°C and 40°C.

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A compact plate heat exchanger with integrated heating and cooling functions that enables simultaneous operation of heating and cooling modes through a single unit. The heat exchanger features a thermoelectric module and a heat transfer system that can be easily replaced or modified to accommodate different temperature requirements. The system's compact design and modular architecture enable efficient installation in various applications, including automotive, industrial processes, and HVAC systems.

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Battery module design with improved thermal management for better performance and safety. The module has a square shape with coated phase change material (PCM) on the outer surface of the battery core. The PCM absorbs excess heat from the core during charging and releases it during discharging to prevent excessive temperature buildup. The PCM also improves heat dissipation from the core. The module has removable terminals and a conducting strip for electrical connection. The PCM-coated core shape allows efficient heat transfer to the shell and surrounding environment.

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Cooling system for integrated battery management in electric vehicles that utilizes Peltier elements to manage temperature between the battery and electrical components. The system employs a Peltier element-based cooling circuit that actively extracts heat from the battery's temperature range, maintaining optimal operating conditions for the battery and electrical system. This innovative cooling solution enables precise temperature control while minimizing the need for external cooling systems.

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Battery module packaging method that addresses thermal management and safety concerns in lithium-ion battery packs. The method integrates a heat management system with the battery cells, featuring a heat radiating plate that supports the battery cells in a stacked configuration. The plate is connected to a network of heat transfer tubes that distribute cooling through the battery cells. This configuration enables efficient heat dissipation while maintaining structural integrity and preventing thermal runaway. The heat transfer tubes feature non-closed annular gaps between adjacent cells, ensuring effective thermal contact while maintaining safety. The plate is fixed to the outside of the housing, with the heat transfer tubes directly contacting the plate's surface. This design provides comprehensive thermal management while maintaining the structural integrity of the battery cells.

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A heat exchanger for electric vehicles that enables dynamic temperature control of high-power batteries. The heat exchanger incorporates a modular design with separate heating and cooling paths, allowing each battery cell to be independently controlled. The system automatically switches between heating and cooling modes based on battery temperature and operating conditions, ensuring optimal thermal management for both battery cell operation and overall vehicle performance.

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Power battery thermal management system based on thermoelectric cooling that integrates compact, efficient heat dissipation with safety features. The system comprises a battery module, a battery box accommodating the battery module, a thermoelectric semiconductor chip embedded on both sides of the battery box, a finned radiator located at the upper end of the thermoelectric semiconductor chip, a square single battery located inside the battery box, and connecting pieces for electrical connection to single cells. The chip is integrated with a composite phase change material that matches the battery box's internal structure, and a metal mesh system provides structural support. The system enables controlled heat transfer through thermoelectric cooling while maintaining safety through electrical isolation.

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A battery system that enables both temperature control and high power density through advanced thermal management. The system incorporates a novel Peltier element-based thermal management system that integrates with the battery pack to maintain optimal operating temperature while enabling precise control over battery cell temperatures. The Peltier elements are integrated into the battery housing and connected to the battery cells, allowing for precise temperature regulation without the need for complex cooling systems. This system enables both controlled battery temperature and high power output, making it suitable for applications requiring both performance and thermal management.

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A battery pack for electric vehicles that integrates heating and cooling functions while maintaining battery performance. The pack comprises a base plate, a bearing plate, and a cover plate, with heating and cooling elements integrated into the base plate. The heating and cooling elements are mounted on the base plate, and a specially designed cover plate with integrated thermal management components enables efficient heat transfer between the battery and the cooling system. This innovative design enables precise temperature control while maintaining the battery's thermal stability, particularly at high temperatures.

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Battery cell for lithium-ion batteries that integrates cooling/heating directly into the cell without needing external cooling systems. The cell contains a Peltier element partially inside and partially outside the housing. This allows the element to be thermally connected to both the cell interior and exterior. One side of the element is in the cell and the other side is exposed. This allows the cell temperature to be controlled by the Peltier element without needing a central control unit. It also reduces weight, complexity, and leaks compared to external cooling systems. The cell can be used in batteries for vehicles where the cell's underside is exposed to airflow. This provides an additional heat sink for the exposed Peltier element side.

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