Unlock instant, AI-driven research and patent intelligence for your innovation.

Electrochemical element

A technology of electrochemical components and electrical components, which is applied in the field of electrochemical components and can solve problems such as contact short circuit

Inactive Publication Date: 2004-01-21
VARTA MICROBATTERY +1
View PDF1 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has been found that short circuits frequently occur in such cells due to contact between the output conductor tabs and the metal of the outer composite aluminum sheet

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electrochemical element
  • Electrochemical element
  • Electrochemical element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] By way of example the battery pack 1 comprises seven or eight individual cells in a casing made of composite sheet material 1 , for example composite aluminum sheet. The composite sheet 1 is provided with an insulating plastic coating at least on the surface pointing toward the interior of the battery.

[0013] A single battery includes a positive electrode 2 , a negative electrode 3 and a separator 4 . Each electrode 2 and 3 has an output conductor tab 8 , wherein the figure shows a positive output conductor tab 8 . These tabs are connected to current collectors 5 made of the same material as the output conductor tabs 8 . These materials are aluminum in the case of the positive electrode and copper in the case of the negative electrode.

[0014] In order to achieve good space utilization and corresponding high energy density, the output conductor tabs are closely stacked together, such as figure 2 shown. In this case, in particular when the output conductor tabs 8...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

Galvanic element comprises a housing having a wall (1) with a metal foil coated with an insulating material on the inner side, a stack of several individual cells with positive or negative electrodes (2, 3), and separators (4). Galvanic element comprises a housing having a wall (1) with a metal foil coated with an insulating material on the inner side, a stack of several individual cells with positive or negative electrodes (2, 3), and separators (4). The electrodes have diverter connections (8) and the galvanic element has collector connections (5) formed as electrical connections. The diverter connections of the same polarity are connected to one of the collector connections. The diverter connections lying next to the housing wall have regions facing an inner side of the wall and covered with a plastic layer (6).

Description

technical field [0001] The invention relates to an electrochemical element comprising a stack comprising two or more individual cells with positive and negative electrodes and separators in a casing, the casing being coated on its inside by Made of synthetic sheets of insulating material. Background technique [0002] Rechargeable electrochemical elements, in particular lithium batteries, in many cases comprise cell stacks formed from two or more individual cells or individual elements. The individual cells thus formed into the cell stack are laminated structures made of output conductors, active electrode membranes and separators. In particular in so-called bi-cells, such a laminated structure made of a plurality of firmly connected parts is produced in a possible sequence comprising negative electrode / separator / positive electrode / separator / negative electrode or positive electrode Electrode / Separator / Negative Electrode / Separator / Positive Electrode. [0003] A method of m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/58H01M4/66H01M6/42H01M6/46H01M10/04H01M10/40H01M10/42H01M50/186H01M50/193H01M50/529H01M50/54
CPCY02E60/12H01M2/266H01M2/08H01M10/0436Y02E60/10H01M50/54Y02P70/50H01M50/186H01M50/193H01M50/105
Inventor T·维尔勒W·高格勒W·-U·巴伦欣H·施泰尔茨格D·伊利克
Owner VARTA MICROBATTERY