News
26 October 2021 We have 3 papers presented at the Modeling, Estimation and Controls Conference (MECC)!
Safe charging algorithms: In this paper, we present a PI controller-based charging algorithm that imposes varying levels of constraints on variables pertinent to degradation, such as plating potential and mechanical stress. Furthermore, we discuss how uncertainties can be accounted for by considering safety margins for the plating and stress constraints.
Modeling first venting: This study presents a model for CO2 gas generation and internal cell pressure at elevated temperature, which can be used to predict the amount of CO2 generated for setting detection thresholds and predict venting timing based on the buildup of cell internal pressure.
23 October 2021 Our research article on "Predicting the impact of formation protocols on battery lifetime immediately after manufacturing" has been published. In this work, we have identified a low-cost and scalable diagnostic signal for screening batteries for lifetime.
23 October 2021 Our research article on "Predicting the impact of formation protocols on battery lifetime immediately after manufacturing" is out in Joule! In this work, we have identified a low-cost and scalable diagnostic signal for screening batteries for lifetime.
9 July 2021 Our perspective on "The challenge and opportunity of battery lifetime prediction from field data" is out in Joule. We explore the benefit of using field data for better battery lifetime estimation and hence improved reliability, safety, extended usage, and reduced cost, and address some of the challenges [Twitter thread]
9 July 2021 Our perspective on "The challenge and opportunity of battery lifetime prediction from field data" is out in Joule. We explore the benefit of using field data for better battery lifetime estimation and hence improved reliability, safety, extended usage, and reduced cost, and address some of the challenges [Twitter thread]
5 May 2021 Peyman Mohtat will be defending his thesis, "Advanced Diagnostics for Lithium-ion Batteries: Decoding the Information in Electrode Swelling", on May 18th
7 April 2021 Ting Cai will be defending his thesis, "Detection of Lithium-Ion Battery Failure and Thermal Runaway", on Wednesday 7th
6 April 2021 Vivian Tran will be presenting at the BMWS Three-Minute Thesis competition on "Harnessing Battery Abuse for Deactivation and Reignition Prevention"
16 March 2021 Three of our students will be presenting at the 239th ECS conference (May 30 - June 3).
Abstract 1 | Abstract 2 | Abstract 3
24 January 2021 Two of our papers have been accepted in the 2021 ACC!
15 October 2020 A new article is up on ArXiv about "Promise and Challenges of a Data-Driven Approach for Battery Lifetime Prognostics", submitted for ACC 2021
8 October 2020 Valentin Sulzer presented at ECS PRiME 2020 on "Electrochemical Modeling of PEM Fuel Cells"
8 September 2020 Valentin Sulzer presented at the Battery Modeling Webinar Series on "Open-source battery modeling with PyBaMM"
29 July 2020 A new article is out in ECS on "Differential Expansion and Voltage Model for Li-ion Batteries at Practical Charging Rates"