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Battery system with improved cooling

A battery system and cooling system technology, which is applied in the direction of batteries, secondary batteries, battery pack components, etc., can solve problems affecting cooling fluid or battery system performance and safety, achieve significant reliability benefits and safety benefits, and improve Life, the effect of increasing peripheral equipment

Pending Publication Date: 2020-09-01
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the electrical conductivity of the cooling fluid increases, this can adversely affect the performance and safety of the cooling fluid or battery system

Method used

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  • Battery system with improved cooling

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Embodiment Construction

[0035] exist figure 1 A battery system 10 with a battery housing 12 is shown in , in which a battery module 14 with a plurality of interconnected battery cells 16 is arranged. The battery system 10 also has a cooling system 18 , such that the battery cells 16 are at least partially surrounded by an electrically insulating or in other words non-conductive cooling housing 20 , which is designed to conduct cooling of the contacting battery cells 16 . Fluid 22. The battery cells 16 are thus directly flushed or circulated by the cooling fluid 22 .

[0036] The cooling housing 20 is connected to coolant connections 28 , 30 through which a cooling fluid 22 can flow into or out of the cooling housing 20 and which is connected to an external cooling circuit. The coolant connections 28 , 30 designed as tubes are electrically connected to the battery housing 12 .

[0037] Furthermore, a measuring circuit 24 is provided for measuring the electrical insulation resistance of the cooling ...

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PUM

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Abstract

The invention relates to a battery system (10) having a battery housing (12) in which a battery module (14) having a plurality of interconnected battery cells (16) is arranged, the battery system (10)further having a cooling system (18), wherein the battery cell (16) is at least partially surrounded by an electrically insulating cooling housing (20), which is designed to conduct a cooling fluid (22) contacting the battery cell (16), and wherein a measuring circuit (24) for measuring an electrical insulation resistance of the cooling fluid (22) is also provided, the measuring circuit (24) is part of a sensor circuit (26) monitoring insulation, which is designed to measure an electrical insulation resistance between the battery housing (12) and a voltage-conducting part of the battery module (14).

Description

technical field [0001] The invention relates to a battery system with improved cooling of battery modules. In particular, the invention relates to a battery system in which the functional state of the cooling fluid can be effectively checked. The invention also relates to the use of the insulation monitor for checking the functional state of the cooling fluid of the battery modules. Background technique [0002] To cool the battery during operation, the battery can be brought into contact with a cooling fluid. To avoid negative effects, the cooling fluid is mostly electrically insulating. If the electrical conductivity of the cooling fluid increases, this can adversely affect the performance and safety of the cooling fluid or the battery system. [0003] US 9,880,226 B2 describes a system and method for monitoring the conductivity of a cooling fluid flowing in a fuel cell system on a vehicle having a chassis. The fuel cell system includes a fuel cell stack electrically c...

Claims

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Application Information

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IPC IPC(8): H01M10/613H01M10/625H01M10/6568H01M10/6556H01M10/48H01M2/10H01M50/209H01M50/569
CPCH01M10/613H01M10/625H01M10/6568H01M10/6556H01M10/482H01M10/48H01M50/569H01M50/209H01M2220/20H01M10/425Y02E60/10
Inventor C.施皮斯贝格尔
Owner ROBERT BOSCH GMBH