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Batteries with shaped bodies made of moisture-retaining porous material for transporting moisture away from the battery case

A technology of porous materials and formed bodies, which can be used in battery pack components, isolation of batteries from their environment, repair/maintenance of secondary batteries, etc., and can solve problems such as increasing risks

Active Publication Date: 2016-01-20
ROBERT BOSCH GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of battery construction therefore offers the possibility of transporting water from the interior of the battery, but this also increases the risk of containing water from the surrounding environment

Method used

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  • Batteries with shaped bodies made of moisture-retaining porous material for transporting moisture away from the battery case

Examples

Experimental program
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Embodiment Construction

[0022] figure 1 A schematic diagram of an embodiment of a battery according to the invention is shown. The battery 1 according to the invention comprises a housing 2 which encloses a housing interior 3 so that a substantially closed air chamber is formed in the housing interior 3 . Arranged in the housing interior 3 are one or more battery cells 4 and a device 5 for drying the air present in the housing interior 3 . The device 5 can here be designed in particular as a cooler. Furthermore, the battery 1 has a shaped body 7 which consists of a moisture-absorbing porous material. The shaped body 7 is arranged in such a way that the shaped body 7 extends both into the housing interior 3 and into the exterior of the housing 2 . The shaped body 7 thus connects the atmosphere of the housing interior 3 and the atmosphere of the outer space of the housing 2 in such a way that a liquid transport between the two atmospheres is achieved via the shaped body 7 . The shaped body 7 is pos...

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Abstract

The invention relates to a battery with a housing in which at least one battery cell and a device for drying the air present in the interior of the housing are arranged. The battery according to the invention is characterized in that the battery (1) has a shaped body (7) of a moisture-accommodating porous material which is arranged to extend not only into the housing interior (3) but also into the housing (2) in the external space and connect the internal space of the housing with the external space in a moisture-conducting manner. The part of the shaped body (7) that is in the housing interior (3) is connected to a device (5) for drying the air in the housing interior (3), so that the collected water (6) can be removed from the The device (5) for drying air is conveyed to the forming body (7).

Description

technical field [0001] The invention relates to a battery, in particular a lithium-ion battery, with a shaped body made of a moisture-retaining porous material for transporting the moisture away from the battery housing, and a battery with such a Batteries for motor vehicles. Background technique [0002] In instruments comprising a housing with a closed air volume which is subjected to temperature changes and thus volume changes, a pressure equalization element is usually provided. Such a pressure equalization element can be configured, for example, as a microporous membrane. Such films are generally breathable. [0003] One problem with such microporous membranes is that they are in most cases impermeable to liquid water, but permeable to water vapour. In the atmosphere with high air humidity, the moist air reaches the interior of the housing through the microporous membrane. It can happen inside the housing that moisture in the air condenses into liquid water. This c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10H01M2/12H01M10/42H01M50/204H01M50/24H01M50/60
CPCH01M10/42Y02E60/10H01M50/30H01M50/394H01M50/342H01M50/204H01M50/24H01M50/60
Inventor M·格莱斯U·齐默尔曼
Owner ROBERT BOSCH GMBH
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