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

Sensors

Chi-Yuan Lee¹  Huan-Chih Peng¹  Shuo-Jen Lee¹  I-Ming Hung²  Chien-Te Hsieh²  Chuan-Sheng Chiou¹  Yu-Ming Chang¹  Yen-Pu Huang¹ 

[1] Department of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan 32003, Taiwan; E-Mails:;Department of Chemical Engineering & Materials Science, Yuan Ze University, Taoyuan 32003, Taiwan; E-Mails:

关键词: lithium battery;    micro-electro-mechanical systems;    flexible three-in-one micro- sensor;    internal monitoring;   

DOI  :  10.3390/s150511485

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.