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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Device for electrically connecting electrical components, particularly charging sockets with battery storage devices of electric vehicles, through a busbar. The device incorporates a phase change material (PCM) chamber along the busbar, with a gas-tight first chamber and a parallel second chamber. The PCM chamber maintains a temperature above a defined operating point during electrical operation, while the parallel chamber absorbs and releases heat through evaporation and condensation. This dual-chamber design enables efficient heat management during high-current charging operations, preventing temperature-related issues that can occur with conventional busbar designs.

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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 novel thermal management system for electric vehicles that replaces traditional air insulation with a novel thermal insulation structure. The system comprises an outer thermal insulation layer, a thermal insulation material layer, and a PP material layer. The outer layer is applied between the battery module and the vehicle's upper cover plate, the thermal insulation material layer is applied between the battery module and the vehicle's casing, and the PP material layer is applied outside the thermal insulation material layer. This multi-layer approach provides superior thermal insulation compared to traditional air insulation methods, enabling more efficient energy storage systems.

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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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A traction battery system for electric vehicles that enables efficient cooling and heating of the battery pack. The system includes a battery module and a heating pad positioned above the battery pack. The heating pad has a low thermal isolation effect through its notch, with multiple heating elements arranged in a compact configuration to minimize thermal losses. The heating pad is supported by a thermal paste layer on the battery module and a thermal paste heating structure on the battery shell. The heating pad is positioned on the upper side of the battery shell, with the thermal paste layer on the lower side of the battery module. This configuration allows the battery to maintain optimal operating conditions while the heating pad provides efficient thermal management.

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A traction battery design that optimizes thermal management through a novel heating structure configuration. The battery housing incorporates a heating mat with cutouts, where the cutouts are designed to be internal rather than open. This design enables the heating mat to maintain its thermal insulation properties while allowing coolant to flow through the housing channels. The heating mat is arranged in a vertical configuration between the battery module and the battery cooling system, with multiple heating elements strategically positioned to maximize heat dissipation. This configuration enables efficient cooling while maintaining the benefits of direct heating.

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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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