Battery bionic heat dissipation and heat recovery system and implementation method thereof

Abstract

The invention discloses a battery bionic heat dissipation and heat recovery system. The system comprises a porous medium module containing a porous medium composite phase change material, ultra-thin gravity assisted heat pipe heat dissipation modules arranged in a honeycomb shape, a root-like heat transfer and collection module, a thermoelectric conversion module based on a Seebeck effect, a capillary-like micro-channel radiator and a charging energy storage module. According to the invention, the battery can be effectively ensured to be in an ideal working temperature range, the temperature uniformity of each single battery can be maintained, the heat dissipation loss can be reduced, the heat dissipation efficiency can be improved, and the safe and reliable performance can be ensured; thesize and the weight of the radiator can be effectively reduced; the purposes of reducing adverse effects of the heat dissipating capacity of the battery pack on other assemblies and recycling waste heat are achieved, a new way is developed for lithium battery heat management, creative attempts are made for combination of lithium battery heat management and thermoelectric conversion, and references are provided for the fields of lithium battery safety heat management and thermoelectric conversion research.

Description

technical field [0001] The invention relates to the technical field of battery heat dissipation and heat recovery, in particular to a battery bionic heat dissipation and heat recovery system and an implementation method thereof. Background technique [0002] At present, lithium batteries have become an indispensable energy storage device in various fields such as electric vehicles, aerospace, and unmanned aerial vehicles. However, in order to meet the actual needs, lithium batteries must achieve fast charging and discharging, and high energy density battery packs will generate a lot of heat during the discharge process. If there is no good heat dissipation conditions, it will lead to heat accumulation and internal temperature rise of the battery, thereby accelerating the battery life. The rate of side reactions and the decline of battery life increase the attenuation of battery capacity, affect the performance of lithium batteries, and are more likely to cause dangerous cons...

AI Technical Summary

Problems solved by technology

[0003] Since the lithium battery converts chemical energy into electrical energy for power generation, it also converts part of the chemical energy into useless heat energy, resulting in a decrease in the utilization rate of the battery, and the current focus of the relevant lithium battery thermal management systems is on how to convert the heat generated by the battery Conducted out of the battery, but did not take into account that the battery in life is not an independent entity, but a part of an electric product; the product not only has the battery component, but also other components, and the lithium battery cannot be simply integrated. In addition to the heat generated and exported to the lithium battery, the impact of its heat on other components should also be considered. Therefore, the use of good heat recovery conversion and utilization technology is of great significance to improve the utilization rate of the battery, the heat dissipation of the lithium battery and the impact of the battery environment. At the same time, it opened up a new way for lithium battery thermal management, and made a groundbreaking attempt for the combination of lithium battery thermal management and thermoelectric conversion.

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