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Battery cell comprising housing cover plate with riveted filling opening

A technology for battery cells and filling openings, applied in the field of battery cells, can solve problems such as increasing costs, and achieve the effects of low cost, avoiding current or electrochemical processes and reactions

Inactive Publication Date: 2015-07-15
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All this can lead to increased costs in the manufacture of the battery cell

Method used

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  • Battery cell comprising housing cover plate with riveted filling opening
  • Battery cell comprising housing cover plate with riveted filling opening
  • Battery cell comprising housing cover plate with riveted filling opening

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0048] figure 1 An exploded view of a conventional Li-ion battery cell is shown. It can be seen that the battery cell is composed of a plurality of individual components. Only the components and their features necessary for understanding the embodiment of the present invention are described here, and the description of the remaining components of the battery cell is omitted.

[0049] The battery cell 1 has at least one wound element 3 with a wound stack 5 consisting of a copper film coated with anodic material, an aluminum film coated with cathodic material and an interposed Constructed of plastic film used as a diaphragm.

[0050] For electrical contacting, the copper foil and the aluminum foil are stacked on top of each other slightly offset in opposite directions along the winding axis, so that the copper foil on the narrow side and the aluminum foil on the opposite narrow side protrude slightly beyond the respective edge of the wrapping element. A current collector 7 ma...

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PUM

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Abstract

What is proposed is: a battery cell, in particular a lithium-ion battery cell, in which a coil element, two current collectors and electrolyte are accommodated in a housing. The housing comprises a container and a cover arrangement. The cover arrangement comprises, inter alia,a cover plate which is fixedly connected to the container once internal components of the battery cell have been introduced. In accordance with the invention, a filling opening (25) is provided in the cover plate (23), through which filling opening electrolyte can be introduced into the interior of the housing and which is closed by means of a rivet (31).

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 cell. Background technique [0002] A battery cell, also partly called a battery cell, is used for the chemical storage of electrically supplied energy. Already today battery cells are used to power several mobile devices. In the future, battery cells should also be used for the power supply of mobile electric or hybrid vehicles on land as well as in water, or for the static temporary storage of electrical energy from alternative energy sources. [0003] For this purpose, a plurality of battery cells are usually combined to form a battery pack. In order to utilize the available pack capacity as efficiently as possible here, in particular cells having a prismatic, for example cuboid, shape are used for this purpose. [0004] Due to its possible high energy density, thermal stability and lack of memory ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/36H01M2/08H01M10/04H01M2/04B60L11/18H01M50/184H01M50/186H01M50/193H01M50/627H01M50/636
CPCB60L11/1877Y02T10/705H01M2220/20H01M2/365H01M2/361H01M2/0473Y02T10/7011Y02T10/7005H01M10/0431H01M2/08B60L50/66H01M50/15H01M50/636H01M50/193H01M50/186H01M50/184H01M50/627Y02E60/10Y02P70/50
Inventor M.肖尔恩K.哈特曼
Owner ROBERT BOSCH GMBH