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Assembly method of battery cell and its operating device

A technology for operating devices and battery units, applied to electrical components, secondary batteries, assembled battery machines, etc., can solve problems such as damage or premature aging of battery units that cannot be ruled out, and achieve the effect of easy and cheap production

Active Publication Date: 2022-07-05
AVL LIST GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] These measures usually imply additional expenditure and / or an additional load on the battery cells, whereby damage or premature aging of the battery cells cannot be ruled out

Method used

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  • Assembly method of battery cell and its operating device
  • Assembly method of battery cell and its operating device
  • Assembly method of battery cell and its operating device

Examples

Experimental program
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Embodiment Construction

[0021] The actuating device 1 shown in the figures serves to fit a housing 11 of a battery module 20 with a battery stack 12 of battery cells 13 arranged next to each other, the stacking direction being indicated by arrows 14 . A balancing element 15 is arranged on each end 12a, 12b of the cell stack 12 .

[0022] Figure 1 to Figure 4 A first embodiment variant of the handling device 1 is shown, which has a carrier frame 2 on which a first slide rail 3 and a second slide rail 4 are arranged, in the present case three first slide rails 4 The slide rail group of slide rail 3 and three second slide rails 4. The first slide rail 3 and the second slide rail 4 are arranged parallel to each other at a distance a measured in a first direction 5 perpendicular to the longitudinal axes 3a, 4a of the slide rails 3,4. The distance a corresponds substantially to the height h of the battery stack 12 of the battery cells 13 of the battery module 20 . Viewed from a side transverse to the se...

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PUM

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Abstract

The invention relates to a method for assembling a housing (11) of a battery module (20) with a battery stack (12) of compressed battery cells (13). In order to reduce the installation expenditure and the load on the battery cells (13), provision is made as follows: the battery stacks (12) of the battery cells (13) are introduced into at least two slide rails (3, 4) or groups in the handling device (1) Between the slide rails (3, 4), wherein at least one slide rail (3, 4) or a group of slide rails (3, 4) of the manipulation device (1) respectively act on the outermost battery unit (13), and the battery The cell (13) is held in a defined compression, the cell stack (12) of the cell (13) is inserted into the housing (11) by means of the handling device (1) perpendicular to the stacking direction (14) of the cell stack (12) In and applied in the housing (11), the battery cells (13) are separated from the slide rails (3, 4) and the slide rails (3, 4) are drawn out of the housing (11) again.

Description

technical field [0001] The present invention relates to a method for assembling the housing of a battery module with a battery stack of compressed battery cells. Furthermore, the invention relates to a handling device for carrying out the method. Background technique [0002] Many current lithium-ion batteries have a certain volume increase during charging / discharging and due to aging effects over their lifetime. In order to ensure a prestress that is as uniform as possible while taking into account volume changes, it is often not sufficient to construct the battery cells in the housing without further measures. For this purpose, balancing elements (often referred to as compression pads), in particular elastic elements, are typically built into the module at the ends or between the stacked battery cells. By means of a corresponding design, these elements ensure that the prestress on the cell is kept within the specified range, even in the event of a volume change of the ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/204H01M50/289H01M50/244H01M10/04H01M50/211
CPCH01M10/0404H01M50/211H01M10/0468H01M10/0481Y02E60/10
Inventor T·沃尔克W·弗里茨V·亨尼吉
Owner AVL LIST GMBH