Battery module thermal runaway test triggering and monitoring system and method

A battery module and monitoring system technology, applied in the automotive field, can solve problems such as inability to accurately reflect the heat transfer state of the battery

Active Publication Date: 2021-03-19
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] It is necessary to provide a battery module thermal runaway test triggering and monitoring system and method for the problem that the traditional method of triggering the thermal runaway of the battery cell cannot accurately reflect the heat transfer state between the batteries when the thermal runaway occurs

Method used

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  • Battery module thermal runaway test triggering and monitoring system and method
  • Battery module thermal runaway test triggering and monitoring system and method
  • Battery module thermal runaway test triggering and monitoring system and method

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Embodiment Construction

[0069] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0070] The traditional solution provides a battery system thermal runaway simulation device, including a module cell for simulating the battery to be tested, a heating trigger device, a module frame, a heating control device, a signal acquisition device, and the like. The thermal runaway simulation device of the battery system overcomes the problem that the escape time of passengers cannot be known after the thermal runaway of the existing battery module. This traditional solution accurately obtains the time for the thermal runaway of the battery module to be transferred t...

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Abstract

The invention relates to a battery module thermal runaway test triggering and monitoring system and method. The battery module thermal runaway test triggering and monitoring system comprises at leastone heater, at least one temperature sensor and a data collector, wherein each heater is the same as one battery monomer in volume, shape and size, and at least one target battery monomer is replacedby the heater; the temperature sensor is arranged in the battery module and between any two adjacent battery monomers; the data collector is electrically connected with the temperature sensor and usedfor obtaining temperature data detected by the temperature sensor. According to the battery thermal runaway triggering system, thermal runaway of the battery system can be triggered through heating,a real battery module can be selected as an experimental object, and a thermal spreading test of a battery monomer is carried out; and the design and operation of the battery thermal management systemcan be guided according to the test result of the thermal spreading of the battery monomer, and the original structure of the battery module can be reserved, so the test result is credible.

Description

technical field [0001] The present application relates to the field of automobile technology, in particular to a battery module thermal runaway test triggering and monitoring system and method. Background technique [0002] In order to alleviate energy shortage and environmental pollution, my country has included the development of new energy vehicles as a strategic emerging technology industry. At present, the key factor restricting the development of electric vehicles is still lithium-ion batteries. Due to its advantages of high specific energy, high cycle life, and moderate manufacturing cost, lithium-ion batteries are currently the main energy source for clean vehicles. [0003] However, with the large-scale application of lithium-ion batteries in the process of car cleaning, the safety of lithium-ion batteries has to be mentioned. Due to some manufacturing defects or improper use, lithium-ion batteries can experience thermal runaway in extreme cases. Specifically, th...

Claims

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Application Information

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IPC IPC(8): G01R31/382G01R31/396H01M10/42
CPCG01R31/382G01R31/396H01M10/4285Y02E60/10
Inventor 金昌勇冯旭宁卢兰光韩雪冰欧阳明高王芳樊彬刘磊
Owner TSINGHUA UNIV
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