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Battery cell, battery and motor vehicle

A battery and single cell technology, applied in batteries, battery pack components, battery boxes/jackets, etc., can solve safety risks and other issues, and achieve the effect of preventing corrosion and reducing the risk of short circuits

Inactive Publication Date: 2014-10-22
ROBERT BOSCH GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fact that one of the multiple poles is connected to the battery cell case is now a safety risk

Method used

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  • Battery cell, battery and motor vehicle
  • Battery cell, battery and motor vehicle
  • Battery cell, battery and motor vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] exist figure 1 The prior art has been described in .

[0024] figure 2 A partial section through a battery cell 10 according to the invention is shown. An electrode 18 (battery pole), usually a negative electrode, is drawn from the interior of the battery cell 10 via the battery cell case 16 . In the lead-off region, the electrodes 18 are electrically isolated from the battery cell housing 16 by an electrical insulator 24 . An electrically conductive connection can be made on the outside of the battery cell housing 16 via the legs 20 and the pins 22 , the intended breaking point 21 being located in the transition region thereof. Such as figure 2 As shown, the predetermined breaking point 21 is not broken, so that current can flow between the electrode 18 and the battery cell housing 16 .

[0025] image 3 A cross-sectional view of the same part of the battery cell 10 according to the invention is shown, but with the intended breaking point 21 broken so as to sep...

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PUM

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Abstract

A battery cell (10) is provided which comprises two electrodes (18) and a battery cell housing (16). A characteristic feature consists in that one of the two electrodes (18) is electrically conductively connected to the battery cell housing (16) via a desired breaking point (21). The component part forming the desired breaking point (21) is pre-stressed such that, when the desired breaking point (21) is broken, a gap forms between the broken edges of the desired breaking point (21) as a result of the pre-stressed component part springing back elastically. In addition, a battery (14) with a plurality of battery cells (10) according to the invention and a motor vehicle with the battery (14) according to the invention are provided.

Description

technical field [0001] The invention relates to a battery cell comprising two electrodes and a battery cell housing. The invention also relates to a battery having a plurality of battery cells according to the invention and a motor vehicle having a battery according to the invention. Background technique [0002] An electrical energy store is used in at least partially electrically driven vehicles for storing electrical energy for an electric machine which supports or is used as a drive. So-called lithium-ion batteries are used in the new generation of vehicles. Lithium-ion batteries are distinguished by their high energy density and particularly low self-discharge. A lithium-ion battery cell has at least one positive electrode and at least one negative electrode (cathode or anode), and lithium ions (Li+) can be intercalated or deintercalated in a reversible manner. [0003] figure 1 It is shown how the individual battery cells 10 can be combined to form a battery module...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/34H01M50/176
CPCH01M2/06H01M2220/20H01M2/347H01M50/579H01M50/176Y02E60/10
Inventor M·科尔贝格尔J·费策尔H·芬克
Owner ROBERT BOSCH GMBH
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