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Sensors 2015, 15(5), 11485-11498; doi:10.3390/s150511485

A Flexible Three-in-One Microsensor for Real-Time Monitoring of Internal Temperature, Voltage and Current of Lithium Batteries

1
Department of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan 32003, Taiwan
2
Department of Chemical Engineering & Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M.N. Passaro
Received: 16 February 2015 / Revised: 14 May 2015 / Accepted: 14 May 2015 / Published: 19 May 2015
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [13164 KB, uploaded 19 May 2015]   |  

Abstract

Lithium batteries are widely used in notebook computers, mobile phones, 3C electronic products, and electric vehicles. However, under a high charge/discharge rate, the internal temperature of lithium battery may rise sharply, thus causing safety problems. On the other hand, when the lithium battery is overcharged, the voltage and current may be affected, resulting in battery instability. This study applies the micro-electro-mechanical systems (MEMS) technology on a flexible substrate, and develops a flexible three-in-one microsensor that can withstand the internal harsh environment of a lithium battery and instantly measure the internal temperature, voltage and current of the battery. Then, the internal information can be fed back to the outside in advance for the purpose of safety management without damaging the lithium battery structure. The proposed flexible three-in-one microsensor should prove helpful for the improvement of lithium battery design or material development in the future. View Full-Text
Keywords: lithium battery; micro-electro-mechanical systems; flexible three-in-one micro- sensor; internal monitoring lithium battery; micro-electro-mechanical systems; flexible three-in-one micro- sensor; internal monitoring
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lee, C.-Y.; Peng, H.-C.; Lee, S.-J.; Hung, I.-M.; Hsieh, C.-T.; Chiou, C.-S.; Chang, Y.-M.; Huang, Y.-P. A Flexible Three-in-One Microsensor for Real-Time Monitoring of Internal Temperature, Voltage and Current of Lithium Batteries. Sensors 2015, 15, 11485-11498.

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