Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power battery thermal management system based on tab and module bottom combined liquid cooling heat dissipation

A heat management system, liquid cooling and heat dissipation technology, applied in the direction of secondary batteries, circuits, electrical components, etc., can solve the problems of low thermal conductivity, poor heat transfer effect, and poor thermal conductivity of diaphragm materials, so as to achieve good heat dissipation effect and prevent The effect of external short circuit phenomenon and high temperature uniformity

Active Publication Date: 2020-07-10
HARBIN ENG UNIV
View PDF15 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the vast majority of power batteries are composed of positive electrodes, diaphragms, negative electrodes and battery casings, and the thermal conductivity of the diaphragm material is low, and the thermal resistance from the inside of the cell to the vertical surface is large, and the thermal conductivity is poor. bad

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power battery thermal management system based on tab and module bottom combined liquid cooling heat dissipation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0017] combine figure 1 , the present invention provides a power battery thermal management system based on the joint liquid cooling and heat dissipation of the tabs and the bottom of the battery cell. The battery pack is clamped by the liquid cooling plate on the top and bottom of the system, and the combination of multiple spatial dimensions is used for efficient liquid cooling and heat dissipation; isolation The thermally conductive filling glue provided in the frame increases the heat exchange contact area between the tab and the top liquid cooling plate. The present invention couples the heat management method of tab heat dissipation, which can greatly reduce the heat transfer resistance of the system, efficiently dissipate heat from the battery module, ensure that the power battery is in a suitable temperature range, and further improve the temperature unifo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention aims to provide a power battery thermal management system based on tab and module bottom combined liquid cooling heat dissipation. The power battery thermal management system comprises abattery cell, a positive tab, a negative tab, a connecting bar, a tab liquid cooling plate, an isolation frame, a soaking film, a bottom liquid cooling plate and a bottom heat insulation pad. The positive electrode and the negative electrode of the battery cell are connected through the connecting bar and are fixed into a group through the left end plate, the right end plate and the peripheral fastening bandages; an isolation frame is arranged at the upper part of the system and is adhered to the top surface of the battery cell through a structural adhesive, a soaking film is laid after the isolation frame is provided with front and rear channels to fill the heat-conducting adhesive, and a tab liquid cooling plate is arranged above the soaking film; and a lower liquid cooling plate, a bottom soaking film and a bottom heat insulation pad are sequentially arranged at the bottom of the battery cell from top to bottom. Based on battery cell tab and bottom combined liquid cooling heat dissipation, the system is compact in structure, high in temperature uniformity and good in heat dissipation effect; the upper liquid cooling plate and the lower liquid cooling plate clamp a module, thereby further strengthening the system reliability.

Description

technical field [0001] The invention relates to a power battery thermal management system. Background technique [0002] In recent years, accidents such as smoke, spontaneous combustion, and fire of electric vehicles have occurred frequently. As its core component, the power battery is developing in the direction of high energy density, long cruising range, short charging time, high safety, high space utilization, light weight, and long cycle life. [0003] The air cooling heat management method has low air thermal conductivity, small convective heat transfer coefficient, long time required for heat dissipation, large pressure difference between inlet and outlet, uneven flow field, poor temperature uniformity, and poor cooling effect at high discharge rates; thermal conductivity of phase change materials The efficiency is low, the phase change latent heat is small, the heat transfer is limited, additional volume is required, the mass is heavy, and the preheating problem of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/617H01M10/625H01M10/653H01M10/6554H01M10/6556H01M10/6567
CPCH01M10/613H01M10/617H01M10/625H01M10/653H01M10/6554H01M10/6556H01M10/6567Y02E60/10
Inventor 范立云李奎杰徐超姜泽军刘宇阳
Owner HARBIN ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products