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Rechargeable electrochemical cell and method for producing same

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: 2014-07-02
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 producing same
  • Rechargeable electrochemical cell and method for producing same
  • Rechargeable electrochemical cell and method for producing same

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0055] figure 1 An electrochemical cell according to the present invention is shown with a housing 1 comprising a lower part 2 that is only open upwards and a cover part 3 that closes the upper opening of the lower part 2. In the preferred case shown, the housing has a prismatic (square) configuration. However, it is equally possible to realize another, in particular cylindrical, housing design with preferably wound electrodes. The housing wall is preferably made of durable metal, such as stainless steel, which is resistant to corrosion of the electrolyte of the battery and is corrosion resistant 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 sleeves 5 and 6, a filling joint 7 and a safety port 8. The electric bushings 5 ​​and 6 each have a conductor rod 28 which is located in an i...

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Abstract

Rechargeable lithium battery cell having a housing, a positive electrode, a negative electrode and an electrolyte containing a conductive salt, wherein the electrolyte comprises SO2 and the positive electrode contains an active material in the composition LixM′yM″z(XO4)aFb, wherein M′ is at least one metal selected from the group consisting of the elements Ti, V, Cr, Mn, Fe, Co, Ni, Cu and Zn, M″ is at least one metal selected from the group consisting of the metals of the groups II A, III A, IV A, V A, VI A, IB, IIB, IIIB, IVB, VB, VIB and VIIIB, X is selected from the group consisting of the elements P, Si and S, x is greater than 0, y is greater than 0, z is greater than or equal to 0, a is greater than 0 and b is greater than or equal to 0.

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 very important in many technical fields. They are often used in applications where only relatively low current strength is required, such as mobile phones. In addition, battery cells are also needed for high current applications (high current batteries), among which the electric drive of the vehicle is particularly important. The invention particularly relates to batteries that are also suitable for high current applications. [0003] An important requirement is high energy density. The battery should contain as much electrical energy as possible per weight unit and volume unit. In this regard, lithium is particularly advantageous as an active metal. [0004] In practice, rechargeable lithium batteries are almost exclusively lithi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/16H01M10/0525H01M10/0563D03D15/00H01M4/80H01M2/08H01M2/18H01M4/136H01M4/58H01M2/02H01M50/119
CPCH01M4/5825Y02E60/122H01M2300/002H01M2/18H01M2/08H01M4/136H01M2/0275H01M10/0525H01M10/0563H01M2/1613H01M4/808H01M50/44H01M50/119Y10T156/10Y02E60/10Y02P70/50H01M50/403D03D15/00H01M50/116H01M10/02H01M50/431H01M50/463H01M50/183H01M4/485
Inventor M.博尔克L.青克
Owner 创辉资产股份公司