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Conductive connection structure for cylindrical power battery modules

A conductive connection structure and power battery technology, which is applied to battery pack parts, structural parts, circuits, etc., can solve problems such as spot welding aluminum wire falling off, battery safety hazards, etc., to reduce the use of materials, reduce safety hazards, and alleviate effect of weight

Pending Publication Date: 2017-05-10
JIANGXI DIBIKE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: the shedding of spot welding aluminum wires, resulting in battery safety hazards; disassembly and maintenance of battery modules

Method used

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  • Conductive connection structure for cylindrical power battery modules
  • Conductive connection structure for cylindrical power battery modules
  • Conductive connection structure for cylindrical power battery modules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] as the picture shows,

[0031] Depend on figure 1 As shown in the schematic diagram of the explosion, the conductive connection method of the battery module is: through the battery module 101 and the shrapnel type manifold 102 are pressed and assembled, and the material of the shrapnel type manifold 102 is copper plated with nickel, which is conducive to the conduction of the current with pass. Between the adjacent battery modules 100A, the conductive connection structure of the front bracket 100A3, the front nickel sheet 100A2 and the shrapnel type manifold 102, the rear nickel sheet 100A9 and the rear bracket 100A8 is adopted, and the front nickel sheet 100A2, the shrapnel type manifold 102 and the rear nickel The pieces 100A9 are compressed, and the adjacent battery modules 100A are compressed and connected by locking pieces.

[0032] Such as image 3 , 4 , 5, and 6, the structure of the shrapnel type manifold 102 is as follows: a number of shrapnel units 102B ar...

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PUM

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Abstract

The invention discloses a conductive connection structure for cylindrical power battery modules. The conductive connection structure comprises nickel sheets, holders, cells, battery modules and an elastic sheet type convergence plate. The conductive connection structure is characterized by that the conductive connection structure of front holders and front nickel sheets, and the elastic sheet type convergence plate, rear nickel sheets and rear holders is employed between adjacent battery modules. Compressing structures are employed among front nickel sheets, the elastic sheet type convergence plate and the rear nickel sheets. The adjacent battery modules are in compressing connection through locking elements. According to the conductive connection structure, a traditional convergence plate structure is changed; moreover, a conductive connection mode between the cell modules is improved, the conductive distance is optimized; through compressing connection of the battery modules and the elastic sheet type convergence plate, potential safety hazards resulting from screw fall-off are reduced; compared with the screw fastening convergence plate, the elastic sheet type convergence plate has the advantage that the weight is reduced; most importantly, through adoption of the elastic sheet type convergence plate, the current transmission distance between the two battery modules is the shortest; the resistance is reduced; and direct connection between an anode and a cathode is achieved.

Description

technical field [0001] The present invention relates to the technical field of new energy power batteries, and more precisely, the present invention relates to a new type of fixed connection conduction method for busbars. Background technique [0002] New energy vehicles refer to vehicles with advanced technical principles, new technologies and new structures that use unconventional vehicle fuels as power sources. [0003] As a new type of clean energy, lithium-ion power batteries have been widely used in energy storage systems in new energy vehicles due to their advantages such as high energy density, good safety, light weight, and long cycle life. Especially in the field of electric vehicle energy storage, lithium-ion power batteries have become the preferred battery type. [0004] Lithium-ion power batteries, especially cylindrical batteries, generally use manifolds to connect single cells in parallel for assembly. At present, the manifolds are usually fixed on the cell ...

Claims

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Application Information

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IPC IPC(8): H01M2/20
CPCH01M50/502Y02E60/10
Inventor 刘钱根抚德禄
Owner JIANGXI DIBIKE
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