A welding-free square lithium battery module

A lithium battery, welding-free technology, applied to battery components, secondary batteries, circuits, etc., can solve the problems of difficult free assembly and cascade utilization, insufficient capacity, high temperature, etc., to achieve long battery life, balanced temperature difference, The effect of improving the utilization rate

Active Publication Date: 2020-11-06
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a square lithium battery module, which can solve the problems of possible missing welding, high temperature, insufficient capacity, difficulty in free assembly and cascaded utilization when the square lithium battery is composed of a large module.

Method used

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  • A welding-free square lithium battery module
  • A welding-free square lithium battery module
  • A welding-free square lithium battery module

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Embodiment Construction

[0029] The content of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] like figure 1 As shown, a welding-free square lithium battery pack module is suitable for use on battery equipment with mechanical connection and independent thermal management structure, which includes: square lithium battery 10, finned cold plate 20, and the surface is passed through The oxidized cold plate 30 , the electrode contact piece 40 , the pressing plate 50 and the fixing frame 80 .

[0031] The square lithium battery uses a finned cold plate 20 and a cold plate 30 , supplemented by upper, lower, left and right pressure plates 70 and a fixing frame 80 to ensure the stability of the entire square lithium battery module.

[0032] Inside the square lithium battery module, there are square lithium battery 10, finned cold plate 20, cold plate 30, electrode contact piece 40, bonding layer 50 between cold pl...

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Abstract

The invention discloses a welding-free square lithium battery module, which comprises structures such as a square lithium battery, a cold plate, an insulating plate, an electrode contact piece, a fixing frame, and a pressing plate. The inside of the square lithium battery module does not need to be welded. The connection between the liquid inlet and outlet on the cold plate and the sealing joint can be used to quickly connect the cells in series and parallel, and the modules can be freely combined. The welding-free square lithium battery module of the present invention reduces the damage caused by battery welding, enhances the heat dissipation (heating) capacity of the battery, improves the utilization efficiency of the battery, and enhances the free combination ability of the square lithium battery with lower cost and means. And heat dissipation (heating) capacity, reduce the temperature of the prismatic lithium battery, balance the temperature difference between the battery and the module, increase the reliability of the prismatic battery module, and prolong the service life of the equipment used by the prismatic lithium battery module.

Description

technical field [0001] The invention relates to the technical field of square lithium batteries, in particular to a square lithium battery module that is mechanically connected, has an independent heat dissipation (heating) structure, and is free of welding. Background technique [0002] Lithium batteries are widely used because of their high energy density, long service life, no memory effect, and no toxic and harmful substances such as lead. In order to meet the capacity and voltage requirements, lithium batteries usually need to be combined into battery packs for use. The grouping method of traditional lithium battery packs is to fix the conductive parts with screws, which easily leads to the risk of single point failure; the conductive parts are grouped and fixed by welding, the conductive contact area is small, and it is difficult to achieve single-section replacement and maintenance, especially not conducive to cascade reuse , there is an urgent need to develop a mech...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10H01M2/20H01M10/613H01M10/6555H01M50/204H01M50/269H01M50/509H01M50/514
CPCH01M10/613H01M10/6555H01M50/20H01M50/50Y02E60/10
Inventor 蒋方明王亦伟曹文炅岑继文彭鹏
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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