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Lithium battery safety monitoring system

A safety monitoring and lithium battery technology, applied in the direction of measuring devices, conversion sensor output, instruments, etc., can solve the problems of real-time temperature monitoring and lithium battery monitoring, etc., and achieve the effect of compact structure and high measurement accuracy

Inactive Publication Date: 2016-07-13
NIU POWER NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional monitoring sensors mainly monitor the temperature of the battery as a whole, and cannot monitor the temperature inside each battery unit in real time. At the same time, existing monitoring methods cannot monitor the internal deformation of lithium batteries.

Method used

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  • Lithium battery safety monitoring system
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Examples

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0027] A lithium battery safety monitoring system, such as figure 1 As shown, the system includes a signal control module 1 and a lithium battery module 2; the lithium battery module 2 includes several battery cells 8, and each of the battery cells is embedded with an optical fiber sensor 9; the signal control module 1 Provide the lithium battery module 2 with an original optical signal, the original optical signal is modulated by the optical fiber sensor 9 of the corresponding battery unit 8 to form a modulated optical signal, and the modulated optical signal is reflected back to the signal control module 1, The signal control module 1 demodulates the received modulated optical signal to form a demodulated ...

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Abstract

The invention discloses a lithium battery safety monitoring system, which comprises a signal control module and a lithium battery module, wherein the lithium battery module comprises a plurality of battery units; each battery unit is embedded with a fiber sensor; the signal control module provides an original optical signal for the lithium battery module, the original optical signal is modulated via the fiber sensor of the corresponding battery unit and is then reflected to the signal control module, the signal control module demodulates the received optical signal, and data for corresponding to-be-monitored information are determined according to the wavelength drift of the demodulated optical signal. Through the lithium battery module provided with the sensors and the signal control module, intrinsic data such as the temperature, the pressure, the vibration, the displacement deformation, positive and negative pole piece position changes and the like inside a cathode mix can be monitored, the detected and acquired data can more truly and objectively reflect the actual conditions of the cathode mix inside the battery, and more accurate data are provided for safety application of a power battery.

Description

technical field [0001] The invention relates to the field of battery monitoring, in particular to a lithium battery safety monitoring system. Background technique [0002] Environmental pollution and energy crisis have become two major problems in current development. Therefore, vehicle electrification technology has been extensively studied due to its unique advantages such as green environmental protection, energy saving and emission reduction. As the key to vehicle electrification technology, battery performance has a major impact on the safety and development prospects of electric vehicles. The batteries commonly used in automobiles are lithium batteries, and the thermal management of lithium batteries is a key point of safety monitoring. Conventional monitoring sensors mainly monitor the temperature of the battery as a whole, and cannot monitor the internal temperature of each battery unit in real time. At the same time, existing monitoring methods cannot monitor the i...

Claims

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Application Information

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IPC IPC(8): G01D5/26G01D21/02
CPCG01D5/268G01D21/02
Inventor 邹托武
Owner NIU POWER NEW ENERGY TECH CO LTD
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