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Battery with filtering element arranged outside battery housing

A filter element and battery casing technology, applied to battery pack parts, electrical components, secondary batteries, etc., can solve the problems of dirt entering the inside of the battery casing, water or dirt entering the inside of the battery casing, etc., to achieve The effect of reducing dead volume

Inactive Publication Date: 2011-05-11
CARL FREUDENBERG KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage here is that water or dirt can enter the interior of the battery housing
Another disadvantage is that this element requires a lot of space in the battery housing, and a vapor pressure is always built up in the battery housing by the desiccant
It is also disadvantageous that dirt can get inside the battery housing when the element is replaced
A further disadvantage is that the component has to be passed through a busbar plate in which the thin monitoring contacts are distributed

Method used

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  • Battery with filtering element arranged outside battery housing
  • Battery with filtering element arranged outside battery housing
  • Battery with filtering element arranged outside battery housing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] figure 1 The lower view shows a prior art battery in which the filter element 1 is arranged inside the battery housing 2 .

[0048] figure 1 In the middle view is shown a filter element 1 which is arranged on the outside of the battery housing 2 and is connected via a hose 3 in an air-conducting manner to the inside of the battery housing 2 .

[0049] figure 1 The upper view shows a filter element 1 which is arranged outside the battery housing 2 and is integrated in the outer wall 4 of the battery housing 2 .

[0050] figure 2 A filter element 1 with a three-layer structure is shown. The outer first layer 5 is designed as a fleece and filters particles. The inner second layer 6 is designed as an adsorption layer which absorbs moisture and / or gases. The second layer 6 comprises a desiccant, a superabsorbent substance (SAP) and / or activated carbon. The third middle layer 7 is designed as a microporous or permeable membrane, which is supposed to keep condensation ...

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PUM

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Abstract

The invention provides a battery with a filtering element arranged outside the battery housing, which relates to a battery equipped with a battery housing (2).According to the invention, the battery housing is subject to antifouling and waterproof protection lastingly.The battery is characterized in that a moisture-proof filtering element (1) is arranged outside the battery housing (2).The filtering element (1) separates the interior of the battery housing (2) against the surrounding environment with air-conduction.

Description

technical field [0001] The invention relates to a (accumulator) battery with a battery housing. Background technique [0002] The individual cells are arranged in the larger battery housing, the individual cells / battery cells being hermetically shielded. These single cells are usually cooled by contact cooling. In this case, the internal temperature of the battery housing is generally lower than the external temperature. Contact cooling is achieved either by liquid-based systems with water-based media, in particular by water-glycol cooling, or by means of air conditioning systems based on fluorinated hydrocarbons or carbon dioxide. [0003] Common battery volumes are greater than 50 liters. Batteries for electric vehicles have volumes of even greater than 100 liters. There is generally an unavoidable dead volume in the battery housing, which is about 5% of the battery volume. Depending on the configuration of the individual cells, this dead volume can be even significan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M50/204H01M50/24
CPCB01D53/261B01D2253/102B01D2253/106B01D2253/108B01D2253/112B01D2258/06B01D2259/40096H01M10/0525H01M14/005Y02E60/10H01M50/204H01M50/24
Inventor P·克里泽H·赖因哈特K·韦瑟M·克格尔
Owner CARL FREUDENBERG KG