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High-power lithium ion battery thermal management system

A lithium-ion battery and thermal management system technology, which is applied in the field of high-power lithium-ion battery thermal management systems, can solve problems such as unsuitable sports scenes, and achieve the effects of simplifying the automatic control process, improving safety and reliability, and efficient heat dissipation performance

Pending Publication Date: 2018-09-18
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this thermal management method requires a large amount of phase change coolant and a supporting condensation system, which is not suitable for sports scenes

Method used

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  • High-power lithium ion battery thermal management system
  • High-power lithium ion battery thermal management system
  • High-power lithium ion battery thermal management system

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Experimental program
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specific Embodiment

[0045] The lithium battery module 1 is composed of 48 218*140*6mm monomers with a 2P24S structure, the surface of 140*6mm is parallel to the lower bottom plate, and the sideways arrangement of the monomers leaves the flow channels for liquid and gas.

[0046] Such as figure 2 As shown, the energy storage box 3 includes an upper cover plate 31, a bottom plate 33, a side panel 32 and a sealing strip 39; the side panels 32, the upper cover plate 31 and the bottom plate 33 of the energy storage box 3 A groove 38 is provided at the overlap of the grooves, and a sealing strip 39 is placed in the groove 38, and the grooves 38 on two adjacent surfaces wrap the sealing strip 39 to form a sealed connection structure, such as Figure 8 shown.

[0047] The components that realize the heat dissipation function include a phase-change cooling liquid 4 and a heat pipe radiator unit 2, and a plurality of the heat pipe radiator units 2 are arranged at certain intervals to form a condensation ...

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PUM

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Abstract

The invention discloses a high-power lithium ion battery thermal management system, comprising a lithium battery module consisting of multiple lithium battery units, a plurality of heat pipe radiatingunits, a module box body, a phase change coolant, a temperature and liquid level collector and the like. According to the scheme of the invention, the battery units are immersed in the phase change coolant, and the heat pipe radiating units are combined to quickly take away the heat inside the box body, and thus a vehicle-mounted energy storage system can work within an appropriate temperature range under a high-temperature environment, the temperature consistency of the battery units can be effectively improved, the safety and reliability of rail vehicle energy storage systems under the hightemperature can be effectively improved, and low economic indicators, low volume quality indicators and environmental protection indicators can also be increased.

Description

technical field [0001] The invention belongs to the technical field of battery heat management, and in particular relates to a high-power lithium-ion battery heat management system. Background technique [0002] If the heat generated by the power battery during charging and discharging cannot be discharged in time, it will inevitably cause the internal temperature of the battery to rise. The influence of temperature on lithium-ion batteries is reflected in electrochemical reactions and thermochemical reactions. Improper battery thermal management can lead to excessive and inconsistent temperatures, which can reduce system efficiency, reliability, and lifetime. Especially when the battery is used in urban rail transit under high-current charging and discharging conditions or the ambient temperature is high, once the lithium battery system has a large-scale heat accumulation, it is easy to cause thermal runaway of the lithium battery. Therefore, more effective thermal manage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/6569H01M10/6552H01M10/6551
CPCH01M10/613H01M10/625H01M10/6551H01M10/6552H01M10/6569Y02E60/10
Inventor 戴朝华周海阔陈化博刘洋陈维荣
Owner SOUTHWEST JIAOTONG UNIV
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