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Connecting structure for series connection of high-capacity single batteries

A single battery and connection structure technology, applied to structural parts, battery pack parts, circuits, etc., can solve problems that affect installation efficiency and installation difficulties, and achieve the effects of material saving, stable and reliable connection, and simple and convenient operation

Pending Publication Date: 2022-01-28
SHAANXI OLYMPUS POWER ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The series connection of the battery is completed through the cooperation of the first screw, the second screw and the contact rod, but it is difficult to install, and the plug-in alignment of the contact rod affects the installation efficiency.

Method used

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  • Connecting structure for series connection of high-capacity single batteries
  • Connecting structure for series connection of high-capacity single batteries
  • Connecting structure for series connection of high-capacity single batteries

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as figure 1 , figure 2 , image 3 As shown, the connection structure of the large-capacity single cells 1 connected in series in this embodiment is formed by connecting three groups of large-capacity single cells 1 in series, and the positive current collecting posts 11 and the negative current collecting posts 12 of the three groups of single cells 1 They are located on two opposite sides of the shell of the large-capacity battery. The cross-section of the current collecting column is rectangular, and part of the current collecting column leaks out of the shell and is insulated and sealed with the shell.

[0054] To further illustrate, grooves 13 are respectively processed on the front and rear panels of the positive current collecting column 11 and the negative current collecting column 12 of each single battery 1, and the grooves 13 are arranged along the positive electrode current collecting column 11 and the negative electrode current collecting column. The...

Embodiment 2

[0056] The specific implementation of this embodiment is based on Embodiment 1, and the difference from Embodiment 1 is that, as shown in 4, this embodiment relates to a connection structure in which large-capacity single batteries 1 are connected in series. The high-capacity single battery 1 is composed of three sets of high-capacity single batteries 1 connected in series. The positive and negative current collectors 12 of the three sets of single batteries 1 are located on the two opposite sides of the shell of the large-capacity battery. The cross-section is rectangular, and part of the current collecting column leaks out of the shell and is insulated and sealed with the shell. U-shaped embedded grooves 15 are respectively opened on the connecting surfaces of the positive electrode current collecting column 11 and the negative electrode current collecting column 12 corresponding to two adjacent single cells 1, so that the two adjacent single cells 1 The U-shaped embedded gr...

Embodiment 3

[0059] The specific implementation of this embodiment is on the basis of embodiment 1, and the difference with embodiment 1 is: as Figure 5 , Figure 6 As shown, five pairs of rectangular grooves 13 are respectively arranged on the front panel and the rear panel of the positive electrode current collecting post 11 and the negative electrode current collecting post 12 of each single battery 1 of the present embodiment, and the grooves 13 are separated from the two single battery cells. The horizontal spacing of the current collecting posts of 1 is about 15 cm. Through holes 14 are respectively opened on the inner wall of the groove 13 and the panels of the corresponding current collecting posts of the two single cells 1. When the first battery When the negative electrode current collecting column 12 of the first battery is connected in series with the positive electrode current collecting column 11 of the second battery, the five pairs of grooves 13 on the front panel of the t...

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Abstract

The invention belongs to the technical field of batteries, and particularly relates to a connecting structure for series connection of high-capacity single batteries, namely a positive current collecting column and a negative current collecting column are arranged on two sides of each single battery, and the positive current collecting column of one single battery is connected with the negative current collecting column of the adjacent single battery in series through a connecting assembly; clamps are arranged in two corresponding grooves in the adjacent batteries for clamping, so that a plurality of high-capacity batteries can be connected in series through the clamps and the grooves, on one hand, the connection of the high-capacity single batteries through wires is omitted through the series connection mode, and materials are saved; and on the other hand, the direct connection contact area of the positive and negative current collecting columns between the two batteries is large, so that the connection line heating between the batteries is reduced.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a connection mode of a large-capacity lithium-ion single battery. Background technique [0002] Large-capacity lithium battery is one of the development directions of lithium battery, which can be applied in the field of energy storage and power battery. Due to the low voltage of the large-capacity single battery, but its large current, in actual use, multiple single batteries are used in series, but the current series connection method usually connects the positive and negative poles of the single batteries through wires. At the same time, fasten and connect multiple single cells through the connectors to avoid instability in series connection caused by multiple single cells shaking each other, but this often makes the cross-sectional area of ​​the connectors larger, takes up space and increases Use cost, reduce popularity. [0003] Currently, patent CN 111341985 A discloses a battery...

Claims

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Application Information

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IPC IPC(8): H01M50/51H01M50/517H01M50/548H01M50/552
CPCH01M50/51H01M50/517H01M50/548H01M50/552Y02E60/10
Inventor 郑高峰雷政军刘毅杨战军翟腾飞
Owner SHAANXI OLYMPUS POWER ENERGY CO LTD
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