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Single-sided welded battery module

A battery module, single-sided welding technology, applied in the direction of batteries, battery pack components, circuits, etc., can solve the problems of large battery modules, inconvenient installation, and long time for welding two sides, so as to reduce the volume and reduce the Welding surface, the effect of improving work efficiency

Pending Publication Date: 2019-01-25
宁波利维能储能系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent 201720702345.0 discloses a battery module. The battery module is equipped with a manifold on the upper side of the upper tray and the lower side of the lower tray. Each battery cell is connected to the upper and lower manifolds by aluminum wire welding. After welding one side of the product, turn the battery module over and weld the other side. and It takes longer to weld both sides
In addition, in order to ensure the safety of the battery module, a certain distance is usually maintained between the manifold and the battery cells. The upper and lower manifolds form a certain distance from the upper and lower ends of the cells, which makes the battery module bulky and inconvenient to install.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as Figure 1-7 As shown, the battery module includes a battery cell support 1, a plurality of battery cells 2 and a manifold assembly. Each battery cell 2 is placed in the battery cell support 1, and the positive poles of each battery cell 2 face upward. The cell support 1 is fixedly connected, and the manifold assembly is located on the side where the positive pole of the cell 2 is located. The manifold assembly includes a positive manifold 6, a first series manifold 4, a second series manifold 5 and a negative manifold 3 , the positive manifold 6 includes a positive manifold main body 61 and a positive manifold connecting portion 62, the positive manifold main body 61 is composed of a plurality of elongated plates, and each elongated plate is distributed in multiple layers, and the positive manifold connecting portion 62 is connected with the edge of each strip-shaped plate of the main body part 61 of the positive electrode manifold to form a complete positive el...

Embodiment 2

[0032] Cell 2 is divided into two groups. The manifold assembly includes a positive manifold, a negative manifold and a series manifold. One side of the series manifold is adjacent to the negative manifold, and the other side of the series manifold is adjacent to the positive manifold. , of the two groups of cells, one group of cell positive poles is welded to the main part of the positive bus plate by welding wire, one side of the cell shell of this group and the main body of the series bus plate is welded by welding wire, and the shell of the other group of cells is The positive electrode of the other group of cells is welded to the other side of the main body of the series manifold by welding wire.

Embodiment 3

[0034] Such as Figure 8 As shown, in the battery module, only the cells 2 need to be connected in parallel, and the cells do not need to be connected in series, so only the positive manifold 3 and the negative manifold 4 are included, and the positive manifold 6 includes the main part of the positive manifold 61 and The positive manifold connecting part 62 and the positive manifold main body 61 are composed of a plurality of strip-shaped plates, each of which is distributed in multiple layers, the positive manifold connecting part 62 and each strip of the positive manifold main part 61 The edges are connected to form a complete positive manifold. Negative electrode manifold 3 comprises negative electrode manifold body part 31 and negative electrode manifold connecting part 32, and negative electrode manifold body part 31 is made up of a plurality of elongated plates, and each elongated plate is multilayer distribution, and negative electrode manifold connecting part 32 It is...

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Abstract

The invention discloses a Single-sided welded battery module, COMPRISING A CELL SUPPORT, A plurality of cells and a bus plate assembly, each cell is arranged in a cell holder, Each cell is hierarchically distributed in the cell support, and is characterized in that the positive electrodes of each cell face in the same direction, the bus plate assembly is positioned at the position where the positive electrodes of each cell face, the bus plate assembly and the positive electrodes of the cell are welded, and the bus plate assembly and the shell of the cell are welded together by welding wires. The single-side weld battery module used by the invention is adopted, all the battery cells are oriented in the same direction, the battery cell is convenient to assemble, and only one side of the battery cell is required to be welded, the weld surface is reduced, and the working efficiency is improved; the volume of the battery module is reduced, space is made free, and heat dissipation of the negative electrode of the cells is facilitated.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of electric vehicle accessories, in particular to a battery module welded on one side. Background technique [0002] Compared with traditional cars, electric vehicles have obvious advantages in terms of environmental protection. Waste pollution and noise pollution are two major pollutions of internal combustion engine vehicles. Electric vehicles do not consume gasoline, have no exhaust pollution, low noise, and low radiation. They are ideal clean vehicles. With the enhancement of human's awareness of environmental protection, the application of electric vehicles is becoming more and more extensive, so the development of battery modules and battery modules for electric vehicles has become an important topic. Chinese patent 201720702345.0 discloses a battery module. The battery module is equipped with a manifold on the upper side of the upper tray and the lower side of the lower tray. E...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/20H01M2/10H01M50/507H01M50/516
CPCH01M2220/20H01M50/20H01M50/502Y02E60/10
Inventor 孙晓东马克明刘伟
Owner 宁波利维能储能系统有限公司
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