Sustainable Energy Systems Lab

I’m very excited to announce the publication of my team’s research work! Skylar Jordan, Krishna Shah, Mohammad Parhizi (Arash) Title: “A new multiphysics modeling framework to simulate coupled electrochemical-thermal-electrical phenomena in Li-ion battery packs” If you are unfamiliar with batteries and battery modeling, no worries! The introduction provides a great overview of what is currently being done and the issues that batteries face. I would recommend reading if you want to learn a bit about Li-ion batteries! Further in this publication, we delve into the physics within battery pack thermal management systems (BTMS). We first developed a new BTMS modeling framework based on the Volume Averaging Theory (VAT) commonly used in modeling fin-and-tube heat exchangers. By using the VAT, we were able to vastly reduce the typical computing demand of computational fluid dynamics simulations and were able to simulate a battery pack of hundreds to thousands of cells in a fraction of the typical time. We then coupled the thermal model with a recently developed electrochemical model – the Tank-in-Series (TiS) model. The TiS model is based upon a volume-averaged pseudo-two-dimensional model, which allows us to capture electrolyte and particle dynamics within the battery. Using this model, we found some interesting results correlating temperature variation within the battery pack to uneven current distribution amongst cells. We also tested how cell-to-cell manufacturing variation affects overall pack performance, finding that even a 0.5% variation could cause significant voltage variation across cells. Overall, our present framework can be used to design battery packs with effective thermal management strategies, enhancing the overall reliability and performance of battery systems. The article has 50 days of free access, so download/read before April 10th at this link: https://lnkd.in/dvVD2rcJ Feel free to reach out and message me if you have any questions! #BatteryTechnology #MultiphysicsModeling #RenewableEnergy #Research #LiIonBatteries #Electrochemical #BTMS #BatteryPack #BatteryPackAging #CellBalancing #BatteryPackModeling

I’m very excited to announce the publication of my team’s research work! Skylar Jordan, Krishna Shah, Mohammad Parhizi (Arash) Title: “A new multiphysics modeling framework to simulate coupled electrochemical-thermal-electrical phenomena in Li-ion battery packs” If you are unfamiliar with batteries and battery modeling, no worries! The introduction provides a great overview of what is currently being done and the issues that batteries face. I would recommend reading if you want to learn a bit about Li-ion batteries! Further in this publication, we delve into the physics within battery pack thermal management systems (BTMS). We first developed a new BTMS modeling framework based on the Volume Averaging Theory (VAT) commonly used in modeling fin-and-tube heat exchangers. By using the VAT, we were able to vastly reduce the typical computing demand of computational fluid dynamics simulations and were able to simulate a battery pack of hundreds to thousands of cells in a fraction of the typical time. We then coupled the thermal model with a recently developed electrochemical model – the Tank-in-Series (TiS) model. The TiS model is based upon a volume-averaged pseudo-two-dimensional model, which allows us to capture electrolyte and particle dynamics within the battery. Using this model, we found some interesting results correlating temperature variation within the battery pack to uneven current distribution amongst cells. We also tested how cell-to-cell manufacturing variation affects overall pack performance, finding that even a 0.5% variation could cause significant voltage variation across cells. Overall, our present framework can be used to design battery packs with effective thermal management strategies, enhancing the overall reliability and performance of battery systems. The article has 50 days of free access, so download/read before April 10th at this link: https://lnkd.in/dvVD2rcJ Feel free to reach out and message me if you have any questions! #BatteryTechnology #MultiphysicsModeling #RenewableEnergy #Research #LiIonBatteries #Electrochemical #BTMS #BatteryPack #BatteryPackAging #CellBalancing #BatteryPackModeling

I’m very excited to announce the publication of my team’s research work! Skylar Jordan, Krishna Shah, Mohammad Parhizi (Arash) Title: “A new multiphysics modeling framework to simulate coupled electrochemical-thermal-electrical phenomena in Li-ion battery packs” If you are unfamiliar with batteries and battery modeling, no worries! The introduction provides a great overview of what is currently being done and the issues that batteries face. I would recommend reading if you want to learn a bit about Li-ion batteries! Further in this publication, we delve into the physics within battery pack thermal management systems (BTMS). We first developed a new BTMS modeling framework based on the Volume Averaging Theory (VAT) commonly used in modeling fin-and-tube heat exchangers. By using the VAT, we were able to vastly reduce the typical computing demand of computational fluid dynamics simulations and were able to simulate a battery pack of hundreds to thousands of cells in a fraction of the typical time. We then coupled the thermal model with a recently developed electrochemical model – the Tank-in-Series (TiS) model. The TiS model is based upon a volume-averaged pseudo-two-dimensional model, which allows us to capture electrolyte and particle dynamics within the battery. Using this model, we found some interesting results correlating temperature variation within the battery pack to uneven current distribution amongst cells. We also tested how cell-to-cell manufacturing variation affects overall pack performance, finding that even a 0.5% variation could cause significant voltage variation across cells. Overall, our present framework can be used to design battery packs with effective thermal management strategies, enhancing the overall reliability and performance of battery systems. The article has 50 days of free access, so download/read before April 10th at this link: https://lnkd.in/dvVD2rcJ Feel free to reach out and message me if you have any questions! #BatteryTechnology #MultiphysicsModeling #RenewableEnergy #Research #LiIonBatteries #Electrochemical #BTMS #BatteryPack #BatteryPackAging #CellBalancing #BatteryPackModeling