Method for producing metal composite foil for battery cell and motor vehicle having battery cell

A technology of battery cells and cell stacks, applied in battery electrodes, non-aqueous electrolyte battery electrodes, lithium batteries, etc., which can solve the problems of limited electrolyte release rate, expensive and complicated battery cell manufacturing, etc.

Pending Publication Date: 2022-05-20
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the manufacture of such cells more expensive and complex
Furthermore, the arrangement of the electrolytes in the prefabricated capsules requires additional manufacturing effort and can only be adjusted to a limited extent with regard to the release rate of the electrolytes

Method used

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  • Method for producing metal composite foil for battery cell and motor vehicle having battery cell
  • Method for producing metal composite foil for battery cell and motor vehicle having battery cell
  • Method for producing metal composite foil for battery cell and motor vehicle having battery cell

Examples

Experimental program
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Embodiment Construction

[0059] at Figure 1 Medium schematic and side section diagram illustrating the battery cell 1. Battery unit 1 has a shell cover 2, the shell cover 2 consists of a battery pack film 3 in the upper part and a battery pack film 4 in the lower part. Battery pack films 3 and 4 are sealed to each other by welds. The unit stack 5 composed of alternating stacks of anodes 6, divider layer 7 and cathode 8 is located in the housing cover 2. Here, the unit stack 5 is surrounded by electrolyte 9. In particular, electrolyte 9 is also present in the pores or recesses of the anode 6, the dividing layer 7 and cathode 8 and may also accommodate lithium ions of the lithium ion source there when desired.

[0060] Figure 2 To show a member of the battery cell 10 in a magnified cross-sectional view. Member 10 may be, for example, housing cover 2, anode 6, separation layer 7, cathode 8 or other components of the battery unit 2 disposed within the housing cover 2. Layer 12 is applied to the surface 11 in c...

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Abstract

The invention relates to a battery cell (1) having a cell stack (5), comprising at least one anode (6), at least one cathode (8), at least one separator layer (7) arranged therebetween, and an electrolyte (9), which are enclosed together by a casing (2). The battery cell (1) is characterized in that at least one separate lithium ion source (17) is arranged inside the housing (2) and is in direct contact with the electrolyte (9).

Description

Technical field [0001] The present invention relates to a battery cell (or battery single cell) having a cell stack or unit roll, the cell stack or cell roll comprises at least one anode, at least one cathode, at least one separator layer and electrolyte arranged between them, which together surrounded by a shell cover. This battery cell can be used in particular in automobiles. Background [0002] Different types of battery cells are known in the prior art, they are typically designed as primary cells. Such a battery unit is used, for example, to provide electrical energy for driving a means of transport. Another application is to provide power to mobile devices, such as mobile radios, tablets or laptops, for their operation. Due to the increasing requirements for such batteries and battery cells installed in the battery, it is constantly expected to extend the service life of the battery as much as possible and at the same time maintain the performance of the battery cell or th...

Claims

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Application Information

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IPC IPC(8): H01M10/058H01M10/0525
CPCH01M10/058H01M10/0525H01M4/13H01M4/36H01M4/366H01M4/364H01M2300/0091H01M10/052H01M10/056
Inventor M.昆泽S.L.科赫
Owner VOLKSWAGEN AG
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