Housing for a galvanic element consisting of carbon fibre-reinforced polymer with a moisture-impermeable layer, galvanic cell, rechargeable battery and motor vehicle

A technology for reinforcing plastics and primary batteries, applied in the field of primary battery casings, can solve problems such as danger and casing damage, achieve high service life, prolong service life, and improve the effect of heat transfer

Active Publication Date: 2014-10-08
ROBERT BOSCH GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a correspondingly designed housing is also susceptible to damage and the resulting hazards

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0040] The invention is explained below with the aid of an example.

[0041] In order to experimentally demonstrate the crash safety of the battery housing according to the invention, a crash test is carried out.

[0042] 100 Li-ion polymer cells (with soft pouch-cell housing) were electrically connected into a reference system, placed in an aluminum-casing and fully charged, whereby the system had 420 voltage in volts.

[0043] The accumulator gets a housing made of carbon-fibre-reinforced plastic, while the other components are unchanged, with polypropylene (PP) being used as plastic.

[0044] The test was carried out in accordance with the Euro NCAP-crash test by frontal impact, in which the test vehicle hits a deformable barrier at a speed of 64 km / h and a coverage of 40%. A typical sedan is used as a test vehicle. The housing of the reference system is deformed and short-circuited and heated. The carbon-fiber-reinforced housing of the energy store according to the inven...

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Abstract

The invention relates to a housing for a galvanic element, preferably a lithium-ion cell, wherein the housing consists of a carbon fibre-reinforced plastic (CFK) provided with a moisture-impermeable layer. In addition, a galvanic element, a rechargeable battery and a motor vehicle are disclosed.

Description

technical field [0001] The invention relates to housings for primary cells, primary cells, accumulators and motor vehicles. Background technique [0002] Whether in stationary applications, such as in wind power plants, in motor vehicles, such as in hybrid and electric vehicles, or in the consumer sector, such as in laptops and mobile phones, safety, reliability , performance and service life put forward higher requirements on the battery system used. [0003] An important parameter for the service life of a battery cell is the energy density or capacity, on which the range of a vehicle driven by an electric motor also depends. Capacitance can also be expressed gravimetrically in terms of watt-hours per kilogram (Wh / kg). [0004] The electrical capacity or nominal electrical capacity of the accumulator cell is determined by the so-called active material of the accumulator cell. For example in the case of a lithium-ion cell this is lithiated metal oxide in the positive ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M50/117H01M50/119H01M50/121H01M50/122H01M50/124H01M50/141
CPCH01M2/022H01M10/0525H01M2/0262H01M10/052Y02T10/7011H01M2/0287H01M2/0282H01M50/107H01M50/124H01M50/117H01M50/141H01M50/119H01M50/122H01M50/121Y02E60/10
Inventor T·韦尔勒J·费策尔H·芬克
Owner ROBERT BOSCH GMBH
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