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Electrochemical element

A technology of electrochemical components and electrodes, which is applied in the field of electrochemical components, can solve problems such as system inoperability, and achieve the effects of reducing the risk of external short circuit, good strength and firmness, and high additional thermal protection performance

Inactive Publication Date: 2004-01-21
VARTA MICROBATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, then the entire system (that is to say the card together with the electrochemical element or the battery pack) is clearly unusable

Method used

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  • Electrochemical element
  • Electrochemical element

Examples

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Embodiment Construction

[0023] A flat battery 1 comprises one or more individual cells in a thin flexible casing 3 made of sheet metal 5 . The metal sheet 5 is provided with a plastic layer 9 on the outside of the cell 1 in order to improve strength. A plastic layer 9 in the form of a catpon tape is applied to the upper surface of the housing 3 via the adhesive layer 7 . The upper metal sheet 5 is provided with a metal layer 11 on the side facing the inside of the flat battery 1 . The lower metal sheet 5 has an insulating layer 6 on the inside.

[0024] As shown schematically by dashed lines, a single cell 13 is located inside the cell 1 and may be formed from a positive electrode and a negative electrode. The individual cells 13 have schematically represented connections 15 to respective output tabs 17 .

[0025] Examples of manufacturing said elements:

[0026] Paste composition formed by using 77% by weight of manganite (electrolytic manganese dioxide) thermally activated at 360°C, 6% by weigh...

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Abstract

A flexible housing (3) of electrochemical element comprises two metal sheets (5) which are connected and sealed to one another and positioned directly adjacent to an electrode. A plastic layer is provided on an outer portion of the metal sheets.

Description

technical field [0001] The invention relates to an electrochemical element, in particular having at least one lithium-doped electrode and a thin flexible casing made of two metal sheets which rest directly on the electrode and pass through in a sealed manner. Adhesive or sealing layers are connected to each other. Background technique [0002] Extremely thin flexible electrochemical elements with a total thickness of less than 0.5 mm are required as energy storage in active smart cards. In the case of a thin electronic smart card such as this, a flat energy storage is used to provide power supply for the integrated circuit chip and other components such as integrated small sensors or transponders. [0003] This thin and flexible electrochemical element is suitable for installation in active smart cards due to compliance with bending tests and test methods. In the dynamic bending test, the card is bent by 2 cm in length or by 1 cm in width at a frequency of 30 bends per min...

Claims

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Application Information

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IPC IPC(8): G06K19/077H01M6/00H01M6/02H01M6/16H01M10/04H01M10/052H01M50/126H01M50/133H01M50/186
CPCY02E60/12H01M2/0285H01M10/052H01M2/0292H01M2/08H01M2/0287H01M2/0275Y02E60/10H01M50/124H01M50/1245Y02P70/50H01M50/126H01M50/133H01M50/186
Inventor T·维尔勒P·比尔克F·比尔克-萨拉姆C·拉斯曼S·费尔斯特H·施泰尔茨格D·伊利克
Owner VARTA MICROBATTERY