Zhou Weihang, Ye Qing, Ye Lei, Li Xuan, Zeng Chaozhi, Huang Chun, Cai Haiwen, Qu Ronghui. Distributed Optical Fiber In-Situ Monitoring Technology for a Healthy Temperature Field in Lithium Ion Batteries[J]. Chinese Journal of Lasers, 2020, 47(12): 1204002
- Chinese Journal of Lasers
- Vol. 47, Issue 12, 1204002 (2020)
Fig. 1. Structure diagram of lithium ion battery with soft pocket
Fig. 2. Simulation results of temperature field of the battery pouch at normal temperature. (a) Initial state; (b) middle moment of discharge process; (c) end moment of discharge process
Fig. 3. Simulation diagram of the temperature change of the battery with the operating voltage during one cycle. (a) Normal temperature 17 ℃; (b) 30 ℃
Fig. 4. Experimental setup diagram (including photograph of a battery pouch with the embedded FBG sensors)
Fig. 5. Schematic diagram of fiber grating sensor temperature measurement
Fig. 6. Schematic diagram of FBG distributed sensing system
Fig. 7. Embedded method of the sensors & physical picture of battery embedded with FBGs
Fig. 8. Characteristic temperature change and errors of the battery during 3 cycles at room temperature (17 ℃). (a) Actual measured data; (b) error between theoretical data and actual data
Fig. 9. Trend of temperature change of three measuring points of the battery pouch under different ambient temperatures. (a) 30 ℃; (b) 40 ℃; (c) 50 ℃
Fig. 10. Local arrangement of battery pack and thermistor temperature sensor on battery pack for Tesla Model 3
Fig. 11. Schematic diagram of concatenation of distributed optical fiber sensors in multi-battery array
|
Table 1. Specifications and performance parameters of the 5500 mA·h lithium-ion battery
|
Table 2. Thermal physical parameters of each part of 5500 mA·h lithium-ion battery
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20