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Battery cells, batteries and motor vehicles

A storage battery and single cell technology, applied in the direction of batteries, battery pack components, circuits, etc., can solve problems such as safety risks, achieve the effect of preventing corrosion and reducing the risk of short circuit

Inactive Publication Date: 2016-08-17
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 cells, batteries and motor vehicles
  • Battery cells, batteries and motor vehicles
  • Battery cells, batteries and motor vehicles

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. like 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 separa...

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PUM

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Abstract

The invention relates to a battery cell (10) comprising two electrodes (18) and a battery cell housing (16). It is characterized in that one of the two electrodes (18) is electrically conductively connected to the battery cell housing (16) via a predetermined breaking point. The member forming the predetermined breaking point (21) is prestressed in such a way that when the predetermined breaking point (21) breaks, due to the elastic rebound of the prestressed member there will be A gap is formed between the broken edges. Furthermore, the invention proposes a battery (4) having a plurality of battery cells (10) according to the invention and a motor vehicle having a battery (14) according to the invention.

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 Patents(China)
IPC IPC(8): H01M2/34H01M50/176
CPCH01M2220/20H01M50/579H01M50/176Y02E60/10
Inventor M·科尔贝格尔J·费策尔H·芬克
Owner ROBERT BOSCH GMBH
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