Abstract:

In response to the low accuracy of temperature detection and excessive wiring harness in the use process of energy storage lithium-ion battery,a temperature measurement method for lithium-ion battery based on fiber Bragg grating sensing technology was developed.This measurement method can reduce effectively the interference between the wiring harness,and save the space in the module,meet the requirements of on-line monitoring and safety warning during the operation of energy storage battery,improve the accuracy of temperature measurement,optimize the module space,reduce the design of wiring harness,provide a new safe,reliable and low-cost measurement method for future battery management system technology,and improve the stability and reliability of battery management system further to improve the overall safety performance of energy storage battery,greatly promote the promotion and application of battery energy storage.

Key words: fiber Bragg grating, lithium ion battery, temperature measurement, battery energy storage