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Battery unit with cover fixed in housing by gluing

A technology for battery cells and casings, applied in electrical components, secondary batteries, battery pack components, etc., can solve problems such as complex structures

Active Publication Date: 2018-06-15
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these battery cells generally have a complex structure, in which a large number of different individual parts and a large number of processing methods of materials are used to assemble the entire battery cell

Method used

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  • Battery unit with cover fixed in housing by gluing
  • Battery unit with cover fixed in housing by gluing
  • Battery unit with cover fixed in housing by gluing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] figure 1 An exploded view of a conventional Li-ion battery cell is shown. It can be recognized that the battery cell comprises a plurality of individual components which have to be provided separately and which have to be assembled in a complex manner during production. Only the components and their features required for understanding the embodiments of the present invention are described here, and the remaining components of the battery unit are not described.

[0030] The battery cell 1 has a wound element 3 with a wound stack 5 consisting of a copper foil coated with anode material and an aluminum foil coated with cathode material and a plastic film between them made, the plastic film was used as a separator.

[0031] The current collectors 7, 9 are welded to the copper and aluminum foils for electrical contact, so that these current collectors are electrically connected to the anode and cathode of the wound element.

[0032] The wound element 3 is placed together...

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PUM

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Abstract

A battery cell, in particular a lithium-ion battery cell, wherein a coiled element, two current collectors and electrolyte are accommodated in a housing (11). The casing includes a container (13) and a cover assembly, wherein the cover assembly especially includes a cover plate (23), which is fixedly connected to the container (13) after the built-in components of the battery unit are inserted. )connect. The cover ( 23 ) is glued to the inner surface ( 37 ) of the container ( 13 ), for example along the projecting arm ( 29 ) by means of a layer of adhesive material ( 31 ). The sealing projection ( 33 ) of the sealing assembly ( 32 ), for example formed by an O-ring ( 41 ), prevents electrolyte introduced into the housing ( 11 ) from coming into contact with the bonding material ( 31 ) and chemically attacking the bond. Material.

Description

technical field [0001] The invention relates to a battery cell, especially a lithium-ion battery cell. The invention also relates to a motor vehicle having such a battery unit. Background technique [0002] A battery cell, sometimes called a battery cell, is used to chemically store electrical energy for use. Today battery cells are used for the energy supply of a large number of mobile devices. In the future, battery cells are to be used in particular for the energy supply of mobile electric vehicles or hybrid vehicles on land and water, or for the stationary intermediate storage of electrical energy from alternative energy sources. [0003] For this purpose, a large number of battery cells are often combined to form a plurality of battery packs. In order to utilize the available pack volume as efficiently as possible in this case, battery cells having a prismatic, for example cuboid, shape are used for this purpose. [0004] Due to its potentially high energy density, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/04H01M2/08H01M2/02H01M10/0525H01M50/171H01M50/184H01M50/186
CPCH01M10/0525H01M50/15H01M50/186H01M50/171H01M50/184Y02E60/10Y02P70/50
Inventor O.格伦特M.法伊格尔
Owner ROBERT BOSCH GMBH
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