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Apparatus and method for airtightness inspection of battery cells and related apparatus

A battery pack and sealing technology, applied in the direction of battery/battery traction, fluid tightness test, battery/battery leakage test, etc., can solve problems such as processing errors, damaged breakpoints, improper operation of battery cells, etc. Achieve the effect of simplifying the sealing inspection and reducing the cost

Active Publication Date: 2020-04-10
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of battery cells is no longer permitted in the event of leaks in the housing which could be caused by machining errors, improper handling of the battery cells and / or damage to the rated breaking point

Method used

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  • Apparatus and method for airtightness inspection of battery cells and related apparatus
  • Apparatus and method for airtightness inspection of battery cells and related apparatus
  • Apparatus and method for airtightness inspection of battery cells and related apparatus

Examples

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Embodiment Construction

[0036] figure 1 A schematic diagram of a battery cell 10 according to an embodiment of the invention is shown in the case of a first measurement for the leak check.

[0037] as in figure 1 As exemplarily shown in , the battery cell 10 can be configured as a prismatic battery cell and comprises a battery connection terminal (battery terminal, terminal) 115 1 、115 2 battery pack cover 110 1 and having a battery pack housing bottom (housing bottom) 110 2 , two shell side walls (side walls) facing each other 120 1 、120 2 and two housing faces (end walls) facing each other 130 1 、130 2 battery case. Battery pack cover 110 1 , battery pack connection terminal 115 1 、115 2 And / or the battery pack housing may comprise metal, such as aluminum, aluminum alloys, steel, or stainless steel. Battery pack cover 110 1 , battery pack connection terminal 115 1 、115 2 and / or the transition between battery pack housings must be hermetically sealed, for example hermetically sealed, ...

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Abstract

Equipment and methods for sealing inspection of battery cells and related equipment. The invention relates to equipment for sealing inspection of battery cells (10; 10'), characterized by: a detection device for detecting (215) first measured values ​​of parameters of the battery cells (10; 10') , wherein said parameter includes a mass, volume, size or thickness of the battery cell (10; 10') and a second measurement of the parameter for detecting (255) the battery cell (10; 10') after a period of time value; comparison means for comparing the second measured value with the first measured value (265); and determining means for determining when the difference between the second measured value and the first measured value is greater than a predetermined threshold (265.1) (270): Battery cell (10; 10') is unsealed or is used to determine (275): Battery cell when the difference between the second measurement and the first measurement is less than a predetermined threshold (265.2) 10;10' is sealed.

Description

technical field [0001] The invention relates to a device and a method for leak checking of battery cells as well as a computer program, a computer program product, a battery cell, a battery module, a battery, a battery system and a vehicle. Background technique [0002] It is foreseeable that not only in stationary applications, such as in wind power plants, but also in mobile applications, such as in electric vehicles (EV), hybrid electric vehicles (HEV) or plug-in hybrid electric vehicles ( In plug-in hybrid electric vehicles (PHEV), new battery systems, for example with lithium-ion accumulators, are increasingly used as rechargeable electrical energy stores (EES, electrochemical storage system, EES). [0003] The battery system must meet very high requirements regarding usable energy content, charging / discharging efficiency, reliability, lifetime and tolerable capacity loss, for example by frequent partial discharges. Therefore, high-power and high-energy battery cells a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/00
CPCG01M3/00H01M2220/20B60L50/50H01M10/48H01M10/4228B60L3/12B60L2260/44B60L50/64Y02T10/70Y02E60/10H01M50/103
Inventor C.利贝诺夫
Owner ROBERT BOSCH GMBH
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