Power lithium ion battery thermal runaway early warning system and early warning method

A lithium-ion battery and early warning system technology, applied in secondary batteries, circuits, alarms, etc., can solve problems such as no early warning function and less monitoring data, so as to reduce unnecessary losses, avoid personal accidents, and promote industrial structure upgrades Effect

Inactive Publication Date: 2017-04-19
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] (2) The monitoring data of the invention is too small to fully realize the actual early warning function. The temperature inside the battery pack is a key monitoring point, and other monitoring values ​​include battery voltage and current, and gas leakage, etc.

Method used

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  • Power lithium ion battery thermal runaway early warning system and early warning method
  • Power lithium ion battery thermal runaway early warning system and early warning method

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention 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 invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0033] figure 1 It is a structural schematic diagram of a power lithium-ion battery thermal runaway warning system according to an embodiment of the present invention. Such as figure 1 As shown, the system includes:

[0034] The electrical signal monitoring unit includes an electrical signal collector, a microprocessor CPU, and a human-computer interaction terminal. The signal collector trans...

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Abstract

The invention discloses a power lithium ion battery thermal runaway early warning system. The system comprises a microprocessor and an alarming apparatus, and the system is characterized in that the system further comprises an electric signal monitoring unit, a smog monitoring unit, a temperature monitoring unit, a controller and a human-computer interaction end. One ends of the electric signal monitoring unit, the smog monitoring unit, the temperature monitoring unit are connected to the lithium ion battery respectively, the other ends are connected to the microprocessor, one connecting end of the controller is connected to the microprocessor, and the other end of the controller is connected to the alarming apparatus. The invention further discloses a power lithium ion battery thermal runaway early warning method applicable to the system. The power lithium ion battery thermal runaway early warning system can conduct monitoring on the charge-discharge voltage, electric current, battery temperature and smog in a battery package of the lithium battery, can perform early warning in time according to a monitoring result and notify a user to manage in time, and is applicable to other fields of energy storage equipment, low-speed scooters, passenger cars, business cars and aviation and the like.

Description

technical field [0001] The invention belongs to the field of new energy and environmental protection industries, and more specifically relates to a thermal runaway warning system and method for a power lithium-ion battery. Background technique [0002] In recent years, with the increasingly prominent problems of energy consumption, resource shortage and environmental pollution caused by automobiles, electric vehicles have attracted much attention due to their significant advantages of high efficiency, energy saving and low emissions. The 13th Five-Year Plan clearly requires the development of emerging industries, and the development of new energy vehicles should focus on the development of plug-in hybrid vehicles, pure electric vehicles, fuel cell vehicles and other safe and energy-saving vehicles. However, at present, lithium-ion power battery thermal runaway accidents occur from time to time, and thermal runaway warning and safety protection have not been effectively resol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36G01D21/02G08B17/107H01M10/48
CPCG01D21/02G01R31/382G08B17/107H01M10/48H01M10/486Y02E60/10
Inventor 李顶根陶欢窦汝振辛明华
Owner HUAZHONG UNIV OF SCI & TECH
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