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Degassing system for an accumulator, and accumulator comprising a degassing system

A technology of exhaust system and storage battery, which is applied in the direction of electrical components, secondary batteries, battery pack components, etc.

Inactive Publication Date: 2011-04-06
JOHNSON CONTROLS HYBRID & RECYCLING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excess air pressure can cause sudden reactions and ignite the battery

Method used

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  • Degassing system for an accumulator, and accumulator comprising a degassing system
  • Degassing system for an accumulator, and accumulator comprising a degassing system
  • Degassing system for an accumulator, and accumulator comprising a degassing system

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Embodiment Construction

[0027] figure 1 An exhaust system 1 according to the invention is shown.

[0028] The exhaust system 1 includes a corso 2 . By saddle is meant the body in which preferably also located holes for attaching other components. The saddle body 2 comprises a cylindrical shape with a circular cross-sectional area. The upper part 3 of the saddle body 2 has rounded edges 4 and is centered in a circular shape. The circular recess 5 has an exhaust opening 6 .

[0029] The exhaust opening 6 comprises two openings in circular cross-section (in each case formed by an arc and a secant) arranged symmetrically with respect to the diagonal of the recess 5 .

[0030] On its outer shell, the saddle body 2 has two holes 7 arranged diagonally opposite each other, although only one hole is visible. A pin 8 can fit into the hole 7 . The pin 8 conveniently has a circular-cylindrical shape.

[0031] In the assembled state, the pin 8 is fitted into the saddle body 2 such that it is arranged below...

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Abstract

The invention relates to a degassing system for an accumulator, by which means an effective protection from excess gas pressure and outer impurities is obtained for the accumulator, when the degassing system (1) comprises: a) a body (2) comprising a degassing opening (6), b) a rod (8) arranged in the body (2), c) at least one flap mounted rotatably around the rod (8), d) a spring (17) arranged insuch a way as to exert a torque on the at least one flap (14), e) and a seal (10) arranged in such a way that the at least one flap (14) lies on the seal (10) in an idle position and closes the degassing opening.

Description

technical field [0001] The present invention relates to exhaust systems for batteries, and more particularly to exhaust systems for hybrid batteries, nickel-metal hydride batteries, and lithium-ion batteries. [0002] The invention also relates to a battery with an exhaust system. Background technique [0003] Among electrochemical cells, high-performance accumulators with a high energy density are used in particular in hybrid and electric vehicles. [0004] High energy density results in a large amount of heat. In order to maintain the performance of the battery and make it possible to ensure performance over a wide operating window, efficient cooling of the battery is necessary. It is also necessary for the accumulator to have a safety system which comes into play in the event of overheating of the accumulator, especially in order to prevent the battery from exploding. [0005] In addition to efficient cooling and safety systems for protection against overheating, high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/12
CPCH01M10/0525H01M2/1276H01M10/345H01M2/1223Y02E60/12Y02T10/7011H01M50/317H01M50/333Y02E60/10
Inventor M·维格曼R·霍斯韦格
Owner JOHNSON CONTROLS HYBRID & RECYCLING
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