Methods and Systems for Battery Monitoring
Noninvasive magnetic sensing delivering fast, accurate state-of-charge and health for EV batteries.
Researchers at Purdue University have developed a new battery state monitoring system to enhance performance, avoid failure, and prolong lifetime for batteries in electronic vehicle and energy storage system applications. This approach measures states of charge (SoC) and health (SoH) in batteries with higher accuracy and speed than current technologies. Purdue researchers implement an ampere hour counting (AHC) approach that induces a magnetic field to quantify the electrochemical state of batteries. In addition, this technique makes up for Eddy current loss in measuring SoH by opening charging discharging paths during inductive coil excitation.
Advantages:
-Accurate
-High Speed
-Noninvasive
Potential Applications:
-Electronic Vehicles
-Energy Storage Systems
Technology Validation: Testing compared with current technology
TRL: 2
Intellectual Property:
Provisional-Patent, 2020-07-21, United States
Utility Patent, 2021-07-21, United States
Keywords: noninvasive battery monitoring,state of charge detection,state of health estimation,magnetic field ampere hour counting,EV battery diagnostics,energy storage battery management,fast accurate battery state monitoring,advanced battery monitoring system,eddy current compensated sensing,high speed battery diagnostics