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Rechargeable electrochemical cell and method for its manufacture

An electrochemical and recharging technology, applied in electrochemical generators, sustainable manufacturing/processing, battery electrodes, etc., can solve problems such as cost, volume and weight increase, and energy density reduction

Active Publication Date: 2018-02-27
创辉资产股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these measures lead to increased cost, volume and weight, thus reducing energy density

Method used

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  • Rechargeable electrochemical cell and method for its manufacture
  • Rechargeable electrochemical cell and method for its manufacture
  • Rechargeable electrochemical cell and method for its manufacture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] figure 1 An electrochemical cell according to the invention is shown with a housing 1 comprising a lower part 2 which is open only upwards and a cover part 3 which closes the upper opening of the lower part 2 . In the preferred case shown, the housing is prismatic (square). However, another, in particular cylindrical, housing design with preferably wound electrodes is also possible. The housing walls are preferably made of a durable metal, such as stainless steel, that is resistant to corrosion by the battery's electrolyte and with respect to potential overcharge products. For many applications, especially in vehicle technology, the housing should have a service life of more than ten years.

[0056] In the preferred case shown, the cover part 3 has four ports, namely two electrical bushings 5 ​​and 6 , a filling connection 7 and a safety port 8 . The electrical bushings 5 ​​and 6 each have a conductor shaft 28 which is located in an insulating ring 29 by means of whi...

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Abstract

A rechargeable electrochemical battery cell having a housing (1), a positive electrode (11), a negative electrode (10) and an electrolyte (9) containing SO and the active metals of the cell Conductive salt, wherein at least one of said electrodes (11) is enclosed by an envelope (13) made of glass fiber textile material, the surface extension ratio of the envelope (13) made of glass fiber textile material being The face extension of the electrode (11) is greater so that the fiberglass textile material extends beyond the boundary (14) of the electrode, and the two layers (15) of fiberglass textile material covering both sides of the electrode (11) , 16) are connected to each other by edge connections (17) at the edges of the electrodes (11).

Description

technical field [0001] The present invention relates to a rechargeable lithium battery cell having a positive electrode, a negative electrode and an electrolyte containing a conductive salt. Background technique [0002] Rechargeable battery cells are of great importance in many technical fields. They are often used in applications where only relatively low current strengths are required, eg mobile phones. Furthermore, battery cells are also highly required for high-current applications (high-current batteries), where the electric drive of vehicles is of particular importance. In particular the invention relates to batteries which are also suitable for high current applications. [0003] An important requirement is a high energy density. Batteries should contain as much electrical energy as possible per unit of weight and unit of volume. Lithium is particularly advantageous as active metal in this respect. [0004] In practice, rechargeable lithium batteries are almost ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/16H01M10/0525H01M10/0563D03D15/00H01M4/80H01M2/08H01M2/18H01M4/136H01M4/58H01M2/02H01M50/119
CPCH01M4/5825H01M10/0525H01M10/0563H01M4/808H01M4/136H01M2300/002H01M50/44H01M50/119Y10T156/10Y02E60/10Y02P70/50H01M50/403D03D15/00H01M50/116H01M10/02H01M50/431H01M50/463H01M50/183H01M4/485
Inventor M.博尔克L.青克
Owner 创辉资产股份公司