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Accumulator housing having a degassing system and accumulator having an accumulator housing

A battery and shell technology, applied in battery pack parts, circuits, electrical components, etc., can solve the problems of battery burning, injury, environmental hazards, etc., and achieve the effect of an economical and effective manufacturing method

Inactive Publication Date: 2011-05-18
JOHNSON CONTROLS HYBRID & RECYCLING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gas overpressure will cause sudden reaction and battery ignition
As a result, people may be injured and the environment may be harmed

Method used

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  • Accumulator housing having a degassing system and accumulator having an accumulator housing
  • Accumulator housing having a degassing system and accumulator having an accumulator housing
  • Accumulator housing having a degassing system and accumulator having an accumulator housing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] figure 1 A degassing system 1 according to the invention is shown.

[0033] The degassing system 1 is attached to the housing bottom 2 of the battery.

[0034] The degassing system 1 has a base body 3 . A seal 4 is arranged between the housing bottom 2 and the base body 3 .

[0035] The base body 3 is made of a material such as metal which gives the degassing system 1 sufficient stability.

[0036] The impact baffle 5 is arranged at a certain distance below the base body 3 . The impact baffle 5 serves as an additional protection against direct external contamination, such as spray water.

[0037] The impact baffle 5 and the seal 4 are detachably connected together on the housing bottom 2 by means of screws 6 . Alternatively, non-detachable adhesive or welded connections are also conceivable. Non-detachable means in this context that the elements cannot be separated from each other without damage. The screws are guided through bore holes formed in the base body 3 ...

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Abstract

The degassing system for accumulators for hybrid vehicles is provided with the characteristics: a) the degassing system (1) has a base body (3) to be attached to a housing bottom (2) of the accumulator, b) the base body (3) has an opening in an upper section, c) the base body (3) is at least partially permeable to liquid in a lower section, d) a guide is arranged in the base body (3), and e) a floating body is provided in the base body (3) and is guided by the guide in order to provide a degassing system for an accumulator that offers effective protection against excess gas pressure and against outer impurities.

Description

technical field [0001] The invention relates to a battery housing with a degassing system and to a battery with a battery housing, in particular for hybrid batteries, nickel-metal hybrid batteries and lithium-ion batteries. Background technique [0002] Large-capacity accumulators with high energy density in primary cells are used in particular in hybrid and electric vehicles. [0003] High energy density generates a lot of heat. To maintain the efficiency of the battery and to be able to ensure said efficiency over a wide operating window requires effective cooling of the battery. In addition, the accumulator must have a safety system which, in particular, intervenes to prevent the battery from exploding when the accumulator overheats. [0004] In addition to effective cooling and a safety system to prevent overheating, high-capacity batteries require a safety system to prevent gas overpressure in the battery. Gas overpressure will cause sudden reaction and battery ignit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/12H01M2/36H01M50/202H01M50/60
CPCH01M2/1247Y02E60/12H01M2/36H01M2/1223H01M2/1072Y02E60/10H01M50/317H01M50/383H01M50/60H01M50/202
Inventor M·维格曼R·约斯威格
Owner JOHNSON CONTROLS HYBRID & RECYCLING
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