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Battery cell with cover consisting of at least two parts and method of manufacturing the same

A battery cell and cover technology, applied in secondary battery manufacturing, batteries, secondary batteries, etc., can solve the problems of high processing technology cost, high component cost, etc., and achieve low manufacturing cost and good moisture infiltration. Effect

Active Publication Date: 2017-11-17
ROBERT BOSCH GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, the realization of the electrical insulation of at least one passage for one of the battery cell terminals and the sealing of the connection therewith against the penetration of moisture presents a relatively high level of effort in the prior art on the one hand. Component costs and, on the other hand, appear as relatively high processing technology costs

Method used

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  • Battery cell with cover consisting of at least two parts and method of manufacturing the same
  • Battery cell with cover consisting of at least two parts and method of manufacturing the same

Examples

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Embodiment Construction

[0027] exist figure 1 An exemplary embodiment of a battery cell 45 according to the invention is shown in a transverse sectional view. In this exemplary embodiment, the battery cell 45 comprises a merely exemplary prismatic battery cell housing 41 and a cover 40 with which the battery cell housing 41 can be closed. Furthermore, the battery cell 45 has two battery cell terminals 11 , 12 via which the battery cell 45 can be connected to a battery system. In this exemplary embodiment, the battery cell terminals 11 , 12 are connected directly to the cover 40 only by way of example. Furthermore, the battery cell 45 comprises an electrode coil 7 with a positive electrode 8 and a negative electrode 9 which are arranged inside the battery cell housing 41 and respectively pass through the battery cell housing 41 The current paths are connected to the corresponding battery cell terminals 11,12. In this exemplary embodiment, the cover part 40 is only exemplarily composed of an electri...

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PUM

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Abstract

The invention relates to a battery cell (45), comprising a battery cell housing (41) and a cover (40), with which the battery cell housing (41) can be closed. The battery cell (45) also includes two battery cell terminals (11, 12) through which the battery cell (45) can be connected to the battery system; and includes a positive electrode (8 ) and the electrode coil (7) of the negative electrode (9), the positive electrode and the negative electrode are arranged inside the battery cell casing (41) and are respectively connected to the corresponding current paths through the battery cell casing (41) connected to the battery cell terminals (11, 12). According to the invention, the cover part (40) is composed of at least one electrically conductive first and second cover part (24, 26), wherein the second cover part (26) is arranged inside the first cover part (24) and The first and second cover members (24, 26) are electrically insulated from each other. The invention also relates to a method for producing battery cells ( 45 ).

Description

technical field [0001] The invention relates to a battery cell with a cover which is composed of at least one electrically conductive first and second cover part, wherein the second cover part is arranged inside the first cover part and the first The cover part and the second cover part are electrically insulated from one another. The invention also relates to a method for producing a battery cell. Background technique [0002] It is becoming increasingly apparent that in the future new types of battery systems, in which in particular a plurality of lithium-ion battery cells are connected, will be used more and more not only in stationary applications but also in vehicles. Lithium-ion battery cells of this type are very sensitive to the penetration of moisture, so in the prior art they often have a hard shell housing, also known as Hardcase, which supports the inner structure of the battery cell. [0003] This hard-shell housing, hereinafter referred to as battery cell hous...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/04H01M2/02H01M2/22H01M10/04H01M50/102H01M50/103H01M50/147H01M50/148H01M50/528H01M50/55H01M50/553H01M50/566H01M50/593
CPCH01M10/04H01M50/147H01M50/528H01M50/553H01M50/55H01M50/593H01M50/566H01M50/103H01M10/0431H01M10/052H01M10/0587H01M2220/20Y02E60/10Y02P70/50
Inventor H·芬克
Owner ROBERT BOSCH GMBH