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Electrochemical accumulator and vehicle comprising an electrochemical accumulator

A technology for vehicles and batteries, applied in the field of vehicles, can solve the problems of sudden reaction of battery cells, ignition of battery cells, harm to people and the environment, etc., and achieve the effects of favorable cost, improved efficiency and high production cost

Active Publication Date: 2011-04-13
科瑞斯技术与再循环有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gas overpressure in the battery cell can cause a sudden reaction inside the battery cell and cause the battery cell to ignite
Danger to persons and the environment may result from this

Method used

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  • Electrochemical accumulator and vehicle comprising an electrochemical accumulator
  • Electrochemical accumulator and vehicle comprising an electrochemical accumulator
  • Electrochemical accumulator and vehicle comprising an electrochemical accumulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] exist figure 1 A module of a plurality of galvanic cells 2 (hereinafter simply referred to as cells) is shown in .

[0028] The battery cell 2 is a cylindrically wound circular battery cell. The wound assembly includes a positive electrode (not shown) and a negative electrode (not shown) with a separator and non-aqueous electrolyte disposed between the positive and negative electrodes. The present battery cell 2 is a lithium-ion battery cell.

[0029] The battery unit 2 is fixed in the bracket 3 . The bracket 3 is made of plastic.

[0030] The frame 3 has a single base plate 4 and a double base plate 5 . The single base plate 4 and the double base plate 5 are connected to each other by means of connecting strips 6 in such a way that they are spaced apart from each other and parallel to each other. A channel 7 is formed between every two connecting bars 6 . These channels 7 form the cooling air space of the accumulator according to the invention. Cooling air for c...

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PUM

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Abstract

The invention relates to an electrochemical accumulator comprising a) a plurality of galvanic cells (2), b) a cover, c) a housing sealed by the cover, d) at least one connection pole for electrically contacting the accumulator (1) which is electrically connected to a group of the galvanic cells (2), e) an electrolyte in the housing, f) a cooling air space for receiving cooling air for cooling the cells (2), and g) a degassing space for receiving gas escaping from the cells (2) during a failure. According to the invention, the performance and safety are improved when h) the cooling air space and the degassing space are separated from each other in a gas-permeable manner, and i) the cooling air space and the degassing space are independently lead out of the housing.

Description

technical field [0001] The invention relates to an electrochemical accumulator having the features of the preamble of claim 1 . The invention also relates to a vehicle with an electrochemical battery. Background technique [0002] Powerful accumulators with a high energy density in the primary cells are used in particular in hybrid vehicles (eg vehicles with accumulator and fuel cell units) and in electric vehicles. [0003] High energy density results in high heat release. In order to maintain and ensure the performance capacity of the battery within a wide operating window (given, for example, by the ambient temperature), the battery must be cooled efficiently. [0004] Efficient and cost-effective cooling of the battery is achieved by air cooling. For air cooling, cooling air ducts are provided in the battery between the individual battery cells, through which cooling air is guided by means of fans. [0005] It is known that the cooling air used for the cooling of the...

Claims

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Application Information

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IPC IPC(8): H01M2/02H01M2/12H01M10/50B60K1/04H01M2/04H01M10/36H01M50/107H01M50/147
CPCH01M2/04H01M2/0237H01M10/5004H01M10/503H01M10/052H01M2/1241H01M10/5016H01M10/5067Y02E60/12Y02T10/7011H01M10/5073H01M10/625H01M10/6563H01M10/643H01M10/6566H01M10/613Y02E60/10H01M50/147H01M50/3425H01M50/107
Inventor M·维格曼M·赫J·比克霍尔茨
Owner 科瑞斯技术与再循环有限责任公司
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