Lithium-Ion Batteries: Importance and Battery Health Assessment
Lithium-ion batteries are widely used to power mobile devices, gasoline-powered cars, and various other applications. As the adoption of electric vehicles increases, the role of lithium-ion batteries becomes even more significant.
Ensuring battery health is crucial due to limited research on their long-term durability and resilience. Battery failure can lead to safety issues like smoke, fire, and explosions, so it is important to monitor battery states and overall health condition.
New Battery Management System for Health Assessment
A team of researchers from Carnegie Mellon and the University of Texas at Austin have developed a battery management system that allows drivers to assess battery health and make informed decisions. They studied charge curves to estimate battery health and used machine learning to predict complete charging curves with high accuracy.
By analyzing only the initial five percent of a battery’s charging process, the system can predict how the battery will charge with a margin of error of just two percent. This level of precision is achieved using only 10% of the initial charge curve as input data.
Improving the Model with Real-World Data
The researchers plan to collect and use real data as input for the machine learning models to improve accuracy. They also aim to incorporate environmental variables into battery charge and discharge profiles. By using actual data from electric vehicle batteries on the road, the battery management system can better predict when to charge and discharge batteries.
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