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Energy storage element and method of manufacturing same

An energy storage and component technology, applied in electrical components, final product manufacturing, secondary battery manufacturing, etc., to solve problems such as damage to internal windings

Pending Publication Date: 2021-04-30
VARTA MICROBATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The unavoidable heat input during soldering can also cause problems, such as damage to internal windings

Method used

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  • Energy storage element and method of manufacturing same
  • Energy storage element and method of manufacturing same
  • Energy storage element and method of manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0116] figure 1 The energy storage element 100 shown is a button cell. It comprises a housing 101 enclosing an interior 114 formed by a first metal housing part 103 and a second metal housing part 104 and having a circular upper side 101a and a circular lower side spaced from and parallel to each other. 101c, and an annular housing side wall 101b connecting the upper side 101a and the lower side 101c. Both the first housing part 103 and the second housing part 104 are designed cup-shaped and each have a circular base 103a, 104a and an annular side wall 103b, 104b. The base 103 a , 104 a and the annular side wall 103 b , 104 b of the cup-shaped housing parts 103 , 104 are each connected to one another via a transition region 103 d , 104 d designed as an edge. The annular side walls 103b, 104b are each delimited firstly by a transition region and secondly by a circumferential free edge 103c, 104c delimiting a circular opening.

[0117] An annular electrically insulating seal...

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PUM

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Abstract

An energy storage element 100 includes a housing 101 enclosing an interior space 114, which housing is formed of a first metal housing part 103 and a second metal housing part 104 and has a substantially circular upper side 101a and a substantially circular lower side 101c spaced from one another and parallel to one another, and an annular housing side 101b that connects the upper side and the lower side; a winding 106 arranged in the interior, which winding includes a strip-shaped positive and a strip-shaped negative electrode and a strip-shaped separator arranged between the electrodes that are wound in a spiral around a winding axis 113; wherein the winding has a first end face 106a and a second end face 106b and an annularly circumferential winding outer side 106c, the first and second end faces face in the direction of the circular and mutually parallel upper side 101a and lower side 101c such that the winding axis is oriented perpendicular or at least substantially perpendicular to the upper side 101a and the lower side 101c, and the winding has an axial cavity 102 through which the winding axis runs; and an electrically conductive pin 109 arranged in the cavity 102 and electrically connects one of the electrodes of the winding to one of the housing parts.

Description

technical field [0001] The invention described below relates to energy storage elements and methods of manufacturing energy storage elements. Background technique [0002] In this context, an energy storage element is understood to mean an electrochemical cell or accumulator capable of storing electrical energy, comprising a plurality of electrically interconnected energy storage elements capable of storing electrical energy and arranged in a common housing. Within the meaning of the present application, each electrochemical cell and thus each energy storage element comprises at least one positive electrode and at least one negative electrode. [0003] In such an energy storage element an electrochemical energy-generating reaction takes place which consists of two electrically interconnected but spatially separated partial reactions. A partial reaction at a relatively low redox potential takes place at the negative electrode, while a partial reaction at a relatively high re...

Claims

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Application Information

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IPC IPC(8): H01M50/107H01M50/531H01M50/528H01M10/0525H01M10/0587
CPCH01M10/0587H01M10/0525H01M10/0427Y02E60/10Y02P70/50H01M50/561
Inventor N·巴伦廷
Owner VARTA MICROBATTERY