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Battery having a protection from adjacent cells in case of discharge of a battery cell

A technology of battery cells and batteries, applied in the direction of repair/maintenance of secondary batteries, batteries, electrical components, etc., can solve the problems of high repair cost and high cost, and achieve the effect of simple removal and replacement

Active Publication Date: 2013-06-12
ROBERT BOSCH GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Incurring high repair costs and associated high expenses

Method used

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  • Battery having a protection from adjacent cells in case of discharge of a battery cell
  • Battery having a protection from adjacent cells in case of discharge of a battery cell
  • Battery having a protection from adjacent cells in case of discharge of a battery cell

Examples

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Embodiment Construction

[0027] exist figure 1 and figure 2 A battery according to the invention is schematically shown in . exist figure 1 The battery is shown in side view, while figure 2 The same embodiment is shown in plan view. A plurality of battery cells 2 are arranged in the housing 1 , each battery cell 2 having at least one vent valve 3 . On the exhaust valves 3 of the battery cells 2 are respectively mounted independent connecting parts 4, which can receive the gas released through the corresponding exhaust valves 3 when the battery cells 2 are exhausted and lead them to the outlet pipe system. Common derivation guide 5. The released gas can be conveyed via the common discharge guide 5 of the discharge tube system to an outlet 6 in the housing 1 and via this can be discharged from the cell interior. The battery according to the invention is characterized in that a protective film 7 is arranged between the vent valves 3 of the plurality of battery cells 2 and the individual individua...

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Abstract

The invention relates to a battery. The battery comprises a housing (1) and a plurality of battery cells (2) arranged in the housing. According to the invention, each battery cell (2) has at least one discharge valve (3). The battery further comprises a discharge pipe system for discharging gases released from one, a plurality of or all discharge valves (3) of the battery cells (2). The discharge pipe system according to the invention has a plurality of separate connections (4) for receiving the released gases and a common discharge guide (5) into which the separate connections (4) open and via which the released gases can be discharged out of the housing (1). The battery according to the invention is characterized in that a protective film (7) is arranged between the discharge valves (3) of the battery cells (2) and the separate connections (4) of the discharge pipe system so that direct contact of the battery cells (2) to the gases in the discharge pipe system is prevented.

Description

technical field [0001] The invention relates to a battery which is embodied in such a way that adjacent battery cells are protected from the harmful effects of gases released when the battery cells are vented. Background technique [0002] Battery cells commonly used in batteries, in particular lithium-ion batteries, have safety valves or vent valves that are closed when excessive pressure builds up inside the battery cell, for example due to overheating or evaporation of the electrolyte. The safety or vent valve opens and allows the substance, mostly in gaseous form, to escape from the cell. Thereby, explosion of the battery cells is avoided. The gases released during the so-called venting of the battery cells are guided out of the battery housing via a discharge line system in order to prevent partially reactive gases from coming into contact with other components of the battery. For this purpose, in most cases all battery cells of the battery are connected to a common d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/12H01M10/42H01M50/367
CPCH01M2220/20Y02E60/10H01M50/317H01M50/3425H01M50/367
Inventor A·赖茨莱U·齐默尔曼
Owner ROBERT BOSCH GMBH
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