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Drying unit and operating method thereof

A drying unit and desiccant technology, applied in separation methods, chemical instruments and methods, and other chemical processes, etc., can solve problems such as damage and strong mechanical load on battery shells, and achieve the effects of high surface activity and good durability.

Active Publication Date: 2015-05-20
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In extreme cases the battery housing may be destroyed due to extreme mechanical loads

Method used

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  • Drying unit and operating method thereof
  • Drying unit and operating method thereof
  • Drying unit and operating method thereof

Examples

Experimental program
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Embodiment Construction

[0029] exist figure 1 A drying unit 16 according to a first embodiment of the invention is shown in . For example, it is positioned inside the housing 12 of the accumulator 10 which is only shown in section. Drying unit 16 includes a housing element 36 in which a drying element 34 is positioned. The desiccant element 34 is preferably formed from a porous, in particular open-pored, metal structure, in whose pores the desiccant 18 is at least partially provided. Suitable hygroscopic desiccants 18 are, for example, silica gel desiccants or suitable zeolitic materials. A desiccant 18 is provided at least in some of the pores of the drying element 34 , wherein the desiccant 18 at least partially coats the inner walls of the respective pores.

[0030] The drying device 16 also includes an inlet 22 for allowing air from inside the battery housing 12 to enter the interior of the drying device 16 and an outlet for exhausting excess moisture from the desiccant 18 from the surrounding...

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PUM

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Abstract

The invention relates to a drying unit which is used for performing dehumidifying on gas or a liquid mixture. The drying unit is provided with at least one inlet (22) for the gas or liquid mixture to be dehumidified, and at least one outlet (24) which is used for dehumidifed gas or liquid mixture, wherein a porous metal member (34), particularly an opened metal member (34) is arranged. The micropores of the metal member are at least coated by a drying agent (18) partially.

Description

technical field [0001] The invention relates to a drying unit according to the preambles of the independent claims, a battery system comprising the drying unit, a method for operating the drying unit and its use. Background technique [0002] Many application areas such as vehicles, fixed equipment (such as wind turbines), and mobile electronic devices (such as laptops) and communication equipment have huge demands on batteries, and the reliability, service life and performance of these batteries are extremely high. requirements. [0003] A battery cell is internally composed of electrochemical components which react sensitively to external influences such as air or humidity and must therefore be prevented as much as possible. [0004] Taking a lithium ion battery cell as an example, there must be a lithium ion conductive salt to allow lithium ions to be intercalated and extracted. Lithium hexafluorophosphate (LiPF) as a conductive lithium salt 6 ) can be used not only fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/52B01D53/26B01J20/00
CPCB01D53/261B01D53/28B01D2259/40096H01M10/052H01M10/52B01J20/28097B01J20/3204B01J20/3234B01J20/3238Y02E60/10
Inventor S·鲍曼G·布亚M·祖奇尼M·聚克斯
Owner ROBERT BOSCH GMBH