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Safety element for battery cell

A technology of battery cells and primary batteries, applied in the field of primary batteries, can solve problems such as failure

Inactive Publication Date: 2014-09-17
ROBERT BOSCH GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tests to integrate the fuse in the negative current collector, usually made of copper, have failed

Method used

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  • Safety element for battery cell
  • Safety element for battery cell
  • Safety element for battery cell

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Experimental program
Comparison scheme
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no. 1 approach

[0021] figure 1 The diagram in FIG. 2 shows a first embodiment variant of a primary cell provided according to the invention, which has an overcharge safety device (Overcharge Safety Device=OSD).

[0022] exist figure 1 A primary cell 10 is shown in , which is preferably a lithium-ion battery cell. in accordance with figure 1 In a variant of embodiment of the present embodiment, the casing of the galvanic cell is formed as a stainless steel casing 34 . according to figure 1 The stainless steel housing 34 of the galvanic cell 10 shown in the figure is at negative or neutral potential. The negative terminal 12 of the galvanic cell 10 is made of copper. Unlike the negative pole - terminal 12, according to figure 1 The positive terminal 14 of the galvanic cell 10 shown in the figure is made of aluminum (Al). The stainless steel housing 34 is here indicated by reference numeral 36 at negative or neutral potential. Furthermore, the stainless steel housing 34 also includes an...

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Abstract

A galvanic element includes a housing, a positive terminal, a negative terminal, and a collector associated with each terminal. The collectors are configured to make contact with an electrode assembly in the interior of the housing. The housing is a stainless steel housing which has a negative potential or a neutral potential.

Description

technical field [0001] The invention relates to a primary battery, in particular a lithium-ion battery cell. Background technique [0002] Lithium-ion battery cells are used as traction batteries for vehicles with electric drives. Several Li-ion battery cells are connected to form a battery module. A single lithium-ion-battery cell includes at least one electrode capable of converting lithium ions (Li + ) to store (embed) or release (de-embed). [0003] DE 10 2008 063 136 A1 discloses a method and a device for protecting lithium-ion batteries in the event of thermal and / or electrical overload due to faults such as short circuits or overcharging. The solution according to DE 10 2008 063 136 A1 can be used in hybrid or electric vehicles. The battery electronics monitor the operating state of the Li-ion-battery in terms of current value, voltage, temperature and cell internal pressure. When the stored limit value is exceeded, the lithium-ion battery is disconnected from th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/34H01M50/119H01M50/55H01M50/553H01M50/562H01M50/583
CPCH01M2220/20H01M2200/20H01M10/0525Y02T10/7005H01M2/345H01M2/26Y02T10/7011H01M2/305H01M2/30H01M2200/103B60L11/18H01M2/348H01M2/34H01M2/0262Y02E60/122H01M50/581H01M50/578H01M50/553H01M50/55H01M50/119H01M50/583H01M50/562Y02E60/10
Inventor M·科尔贝格尔
Owner ROBERT BOSCH GMBH