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Battery box thermal management system in consideration of heat recovery and control method thereof

A management system and heat recovery technology, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as unsatisfactory heat dissipation effect of battery thermal management system, shortened discharge cycles of lithium-ion batteries, and decomposition of battery electrodes and electrolytes. , to achieve the effect of improving uneven flow distribution, simple design and energy saving

Active Publication Date: 2020-02-28
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most suitable charging and discharging temperature of the battery is between 20°C and 45°C. At low temperature, the internal resistance of the lithium-ion battery increases, the capacity decreases, and the working efficiency decreases.
If the temperature is too high, the battery will produce electrode degradation and electrolyte decomposition, which will accelerate its aging process
At an ambient temperature of 60°C, the number of discharge cycles of lithium-ion batteries is significantly shortened, and the aging is serious
However, the heat dissipation effect of the existing battery thermal management system is not ideal, and heat recovery is not considered

Method used

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  • Battery box thermal management system in consideration of heat recovery and control method thereof
  • Battery box thermal management system in consideration of heat recovery and control method thereof
  • Battery box thermal management system in consideration of heat recovery and control method thereof

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Embodiment Construction

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0042] In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "axial", The orientation or positional relationship indicated by "radial", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or elem...

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Abstract

The invention discloses a battery box thermal management system in consideration of heat recovery and a control method thereof, and relates to a battery box thermal management system. The system includes a battery box heat dissipation structure module and a control module. The battery box heat dissipation structure module includes a liquid-cooling thermal management device and an air-cooling thermal management device. The liquid-cooling thermal management device includes multiple heat dissipation structure liquid-cooling plates. The air-cooling thermal management device includes a fan with a curved flow deflector. The control method comprises detecting a battery surface temperature; determining a temperature range of the battery surface by a controller; sending instructions to a corresponding execution unit; and preheating or cooling the battery module. The battery box thermal management system and the control method thereof can effectively control the temperature of a power battery, improve the consistency of the temperature of the battery box, and recover the generated heat to provide power for an air-cooling device.

Description

technical field [0001] The invention relates to the technical field of a battery box thermal management system, in particular to an energy-saving and efficient battery box thermal management system considering heat recovery and a control method thereof. Background technique [0002] Exhaust gas from traditional automobiles continues to aggravate environmental pollution. Motor vehicles have become the largest source of air pollutants in many large cities, and resource and environmental problems caused by automobiles have become increasingly severe. It is imminent to solve resource and environmental problems. The development of new energy vehicles is an important solution. It can not only reduce vehicle exhaust emissions, but also reduce the use of non-renewable resources such as petroleum. Electric vehicles have gradually become the research and development focus of many car companies and scientific research institutions. The government has also formulated a series of policie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/48H01M10/615H01M10/617H01M10/633H01M10/635H01M10/6551H01M10/6557H01M10/6563H01M10/6568H01M10/6571
CPCH01M10/613H01M10/617H01M10/633H01M10/635H01M10/486H01M10/6568H01M10/6557H01M10/6563H01M10/6551H01M10/615H01M10/6571Y02E60/10
Inventor 叶佳朱茂桃罗雪松
Owner JIANGSU UNIV
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