A safety prevention and control method and device for a battery energy storage module

A battery energy storage and battery technology, which is applied to batteries, secondary batteries, battery pack components, etc., can solve the problems of high cost and poor thermal pick-up effect of battery energy storage modules, so as to protect safety and suppress the spread of flames. , reduce the effect of safety accidents

Pending Publication Date: 2018-12-18
CHINA ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems in the background technology of preventing battery energy storage modules from getting out of control due to thermal pick-up and high cost, the present invention provides a safety prevention and control method for battery energy storage modules, the method comprising:

Method used

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  • A safety prevention and control method and device for a battery energy storage module
  • A safety prevention and control method and device for a battery energy storage module
  • A safety prevention and control method and device for a battery energy storage module

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Embodiment 1

[0052] figure 1 It is a flow chart of the safety prevention and control method of the battery energy storage module according to the first preferred embodiment of the present invention. Such as figure 1 As shown, this preferred embodiment is to design and prepare a flame-retardant and heat-insulating device for a hard-shell packaged lithium-ion battery module. Explosion-proof valve, the cooling method of the battery module is air cooling. The safety prevention and control method 100 for battery energy storage modules in this preferred embodiment starts from step 101 .

[0053] In step 101, test the battery in the battery energy storage module, determine the rupture location of the battery and the temperature and duration of the substance ejected from the rupture location of the battery, and determine the rupture location of the battery and the temperature of the substance ejected from the rupture location according to the test and duration to determine the structural parame...

Embodiment 2

[0097] Figure 8 It is a flow chart of the safety prevention and control method of the battery energy storage module according to the second preferred embodiment of the present invention. Such as Figure 8 As shown, this preferred embodiment is to design and prepare a safety protection device for a hard-shell packaged lithium-ion battery module. The cooling method of the module is air cooling. The safety prevention and control method 800 of the battery energy storage module in this preferred embodiment starts from step 801 .

[0098] In step 801, conduct a hot box test on each battery in the battery energy storage module, heat the battery at a heating rate of 20°C / min until the battery ruptures, and determine the temperature at the ruptured location of the battery and the time for ejecting substances.

[0099] Figure 9 It is a schematic diagram of the rupture position of the battery in the battery energy storage module of the second preferred embodiment of the present inv...

Embodiment 3

[0118] Figure 12 It is a flow chart of the safety prevention and control method of the battery energy storage module according to the third preferred embodiment of the present invention. Such as Figure 12 As shown, this preferred embodiment is to design and prepare a safety protection device for a soft-packed lithium-ion battery module, the battery is soft-packaged, the battery has a nominal capacity of 10Ah, the battery lugs are drawn out from the same side, and the cooling method of the battery module is liquid cooling. The safety prevention and control method 1200 of the battery energy storage module in this preferred embodiment starts from step 1201 .

[0119] In step 1201, conduct a hot box test on each battery in the battery energy storage module at a heating rate of 1°C / min, heat until the battery ruptures, determine the location of the battery rupture, the temperature of the rupture location, and the time for ejecting substances.

[0120] Figure 13 It is a schema...

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Abstract

The invention provides a safety prevention and control method and device for a battery energy storage module. The method comprises the following steps: testing a battery in the battery energy storagemodule, and determining a rupture position of the battery and temperature and duration of a substance ejected from the rupture position of the battery; according to the installation and arrangement mode of each battery in the battery energy storage module, determining the contact surface with the strongest heat exchange effect between the batteries; and installing flame retardant and heat insulating devices in the rupture position of the battery in the battery energy storage module and on the contact surface with the strongest heat exchange effect between the battery and the battery. The safety prevention and control method and device for the battery energy storage module ensures that a chain reaction of other batteries and expansion of a safety accident are not caused when thermal runawayof one or a few batteries in the battery energy storage module occurs, and the heat dissipation problem of the battery in normal use is solved while flame retardant and heat insulation effects are achieved.

Description

technical field [0001] The present invention relates to the field of battery safety, and more specifically, to a method and device for safety prevention and control of battery energy storage modules. Background technique [0002] With the wide application of lithium-ion batteries, fire accidents caused by lithium-ion batteries have occurred frequently in recent years, and the fire hazard of lithium-ion batteries has gradually emerged. Many influential fire accidents have occurred at home and abroad, and have caused large-scale fire accidents in related products. Large-scale recalls have brought significant direct economic losses to enterprises and industries related to lithium-ion batteries. [0003] Lithium-ion batteries are prone to danger and thermal runaway under certain abuse conditions (such as overcharge, high temperature, short circuit, etc.). During this process, the internal and surface temperatures of the battery will suddenly rise to several hundred degrees, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/613H01M10/647H01M10/654H01M10/6554H01M10/6556H01M10/658A62C3/16H01M50/24
CPCA62C3/16H01M10/613H01M10/647H01M10/654H01M10/6554H01M10/6556H01M10/658H01M2200/00H01M50/24Y02E60/10
Inventor 高飞杨凯刘超群王康康惠娜范茂松刘皓张明杰耿萌萌
Owner CHINA ELECTRIC POWER RES INST
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