Iowa State University Capstones, Theses and Graduate Theses and Dissertations Dissertations 2018 Multiphysics analysis of electrochemical and electromagnetic system addressing lithium-ion battery and permanent magnet motor Abhishek Sarkar Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/etd Part of the Electromagnetics and Photonics Commons, Mechanical Engineering Commons, and the Physics Commons Recommended Citation Sarkar, Abhishek, "Multiphysics analysis of electrochemical and electromagnetic system addressing lithium-ion battery and permanent magnet motor" (2018). Graduate Theses and Dissertations. 17307. https://lib.dr.iastate.edu/etd/17307 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. Multiphysics analysis of electrochemical and electromagnetic system addressing lithium-ion battery and permanent magnet motor by Abhishek Sarkar A dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Major: Mechanical Engineering Program of Study Committee: Abhijit Chandra, Co-Major Professor Pranav Shrotriya, Co-Major Professor Ikenna C. Nlebedim, Co-Major Professor Steve W. Martin Kurt Hebert Michael Olsen The student author, whose presentation of the scholarship herein was approved by the program of study committee, is solely responsible for the content of this dissertation. The Graduate College will ensure this dissertation is globally accessible and will not permit alterations after a degree is conferred. Iowa State University Ames, Iowa 2018 Copyright © Abhishek Sarkar, 2018. All rights reserved. ii TABLE OF CONTENTS LIST OF FIGURES .................................................................................................................. iv LIST OF TABLES ................................................................................................................... vii ACKNOWLEDGEMENTS ................................................................................................... viii ABSTRACT .............................................................................................................................. ix CHAPTER 1. INTRODUCTION AND LITERATURE REVIEW .......................................... 1 1.1 Composition and Working Principle ................................................................... 1 1.2 Literature Overview ............................................................................................. 2 1.3 Current Work ....................................................................................................... 4 CHAPTER 2. PARAMETRIC ANALYSIS OF ELECTRODE MATERIALS FOR MECHANICAL PERFORMANCE OF LITHIUM-ION BATTERY: A MATERIAL SELECTION APPROACH ....................................................................................................... 7 2.1 Introduction .......................................................................................................... 7 2.2 Mathematical and Parametric Analysis ............................................................... 9 2.2.1 Mathematical Model ..................................................................................... 9 2.2.2 Material Characterization for Lithium Electrodes: ..................................... 15 2.2.3 Constraints and Free Variables ................................................................... 16 2.3 Results and Discussions ..................................................................................... 18 2.3.1 Charging Index ........................................................................................... 20 2.3.2 Elastic and Plastic Indices ........................................................................... 21 2.3.3 Stress Index ................................................................................................. 22 2.3.4 Fracture Index ............................................................................................. 22 2.4 Conclusions ........................................................................................................ 28 CHAPTER 3. PARAMETRIC ANALYSIS OF ELECTRODE MATERIALS ON THERMAL PERFORMANCE OF LITHIUM-ION BATTERY: A MATERIAL SELECTION APPROACH ..................................................................................................... 30 3.1 Introduction ........................................................................................................ 30 3.2 Mathematical and Parametric Analysis ............................................................. 32 3.2.1 Thermal Model ........................................................................................... 32 3.2.2 Parametric Analysis .................................................................................... 37 3.3 Results and Discussion ...................................................................................... 38 3.3.1 Entropic Index ............................................................................................. 40 3.3.2 Polarization Index ....................................................................................... 41 3.3.3 Joule Index .................................................................................................. 43 3.3.4 Plastic Heat Index ....................................................................................... 44 3.3.5 Thermal Diffusion Index ............................................................................ 46 3.3.6 Effect of charging rate on heat generation in lithium battery electrodes .... 49 3.4 Conclusions ........................................................................................................ 50 CHAPTER 4. MODELING AND PROGNOSTICS OF SEPARATOR MELTDOWN FOR LITHIUM-ION POUCH CELLS UNDER COMPRESSION: BASED ON OPEN- CELL FOAM MODEL ............................................................................................................ 52 4.1 Introduction ........................................................................................................ 52 4.2 Mathematical Model .......................................................................................... 55 iii 4.2.1 Conductivity-stress analysis for a foam-based separator model: ................ 56 4.2.2 Chemo-thermal model for pouch cells:....................................................... 58 4.3 Results and Discussion ...................................................................................... 61 4.3.1 Validation of separator model:.................................................................... 61 4.3.2 Prediction of ionic-conductivity for different separator materials: ............ 62 4.4 Conclusion ......................................................................................................... 71 CHAPTER 5. CHEMO-ECONOMIC ANALYSIS OF BATTERY AGEING AND CAPACITY FADE IN LITHIUM-ION BATTERY ............................................................... 72 5.1 Introduction ........................................................................................................ 72 5.2 Mathematical Model .......................................................................................... 75 5.3 Economic Analysis ............................................................................................ 78 5.4 Results and Discussion ...................................................................................... 81 5.5 Conclusion ......................................................................................................... 88 CHAPTER 6. BOLTZMANN TRANSPORT EQUATION BASED MODELS FOR PREDICTION OF MODE-DEPENDENT PHONON THERMAL CONDUCTIVITY OF SILICON NANOPARTICLE .................................................................................................. 90 6.1 Introduction ........................................................................................................ 90 6.2 Mathematical Model .......................................................................................... 91 6.3 Results and Discussion ...................................................................................... 95 6.4 Conclusion ......................................................................................................... 97 CHAPTER 7. THERMO-MECHANICAL ANALYSIS OF BRUSHLESS DC MOTOR FOR APPLICATION OF BONDED PERMANENT MAGNETS ......................................... 99 7.1 Introduction ........................................................................................................ 99 7.2 Magnet Model .................................................................................................. 102 7.3 Material property prediction ............................................................................ 106 7.4 Conclusion ....................................................................................................... 110 7.5 Appendix .......................................................................................................... 111 CHAPTER 8. CONCLUSION AND FUTURE SCOPE ....................................................... 112 8.1 Summary and Conclusions .............................................................................