Summary
Overview
Work History
Education
Skills
Websites
Patents
Selected Conference Presentations
Selected Publications
Timeline
Generic

Mehdi Forouzan

Fremont,CA

Summary

Battery expert with a Ph.D. in chemical engineering and +12 years of experience in electrochemical systems and Li-ion cell design, development, characterization, and modeling. Proficiency in cell design and product development from proof of concept to pilot production. In-depth understanding of electrochemical phenomena and physics. Highly skilled in cell fabrication (electrode stacking, tab welding, pouch sealing). Extensive experience in cell and electrode characterization and testing. Steep knowledge of cell degradation mechanisms in graphite, silicon, and Li metal systems with different cathode chemistries. Strong ability to solve technical problems in a short amount of time. Superior management skills. Able to work under pressure and in fast-paced environments. Strong technical communication skills.

Overview

11
11
years of professional experience

Work History

Director of Cell Development

Amprius Technologies
06.2023 - Current
  • Developed a high-performing team by providing mentorship, guidance, and opportunities for professional growth.
  • Enhanced team collaboration through regular communication, goal setting, and performance evaluations.
  • Worked closely with organizational leadership and board of directors to guide operational strategy.
  • Established a culture of continuous improvement by fostering open communication channels and empowering employees to voice their ideas.

Senior cell scientist

Amprius Technologies
03.2020 - 06.2023
  • Designed high capacity cathode formulations and Li-ion cells (7Ah) to meet gravimetric energy density (GED) of 500 Wh/kg, increasing specific energy by 25% from proof of concept to pilot production to commercialization
  • Reduced dependency on prelithiation by designing comparable performance cells without prelithiation, resulting in 70% reduction in production labor
  • Optimized Li-ion cell formulations to meet high voltage (4.9V) and high GED 400 Wh/kg with minimized degradation at higher voltages
  • Designed a fast charge algorithm along with ultra-high power Li-ion cells capable of 80% SOC charge in 4:48 minutes and continuous 10C discharge only with less than 10% capacity drop
  • Developed SAFE high energy cells (20 Wh) to pass nail penetration test at high SOCs
  • Arranged test protocols to analyze degradation mechanisms of cells made with different cathode chemistries combined with 100% silicon nanowires anode
  • Managed cathode materials sourcing and cathode formulation design and optimization
  • Processed large data using Matlab and excel
  • Skilled in UN38.3 tests.

Senior characterization and modeling engineer

Insyte
11.2019 - 02.2020
  • Analyzed ohmic, charge transfer, and diffusion impedances using EIS and current interrupt methods.

Battery engineer

SF Motors
06.2018 - 11.2019
  • Developed, validated, and improved a full order electrochemical thermal (ECT) model (COMSOL)
  • Built a full order physics-based life model for cycle life prediction (capacity fade + DCIR growth)
  • Implemented offline SOH estimation by a semi-empirical life model and experimental data
  • Created fast charge algorithm for minimized Li plating and degradation (empirical + analytical modeling)
  • Extracted and measured electrochemical, microstructural, and transport parameters of Li-ion cells
  • Characterized degradation mechanisms (empirical + analytical modeling)
  • Analyzed non-uniformity effects of different pack cooling systems (side, top/bottom, bottom cooling).

Cell modeling and characterization

Brigham Young University - Dean R. Wheeler-Advisor
09.2013 - 06.2018
  • Studied the effects of local heterogeneity of Li-ion cell electrodes, resulting in non-uniform temperature, current, and SOC as well as non-uniform aging by a Newman-type model using COMSOL Multiphysics
  • Measured tortuosity of electrodes with different compositions and conductive additives, mainly by DC polarization-interrupt and AC impedance methods, using Arbin
  • Simulated polarization-interrupt method, as a tortuosity measurement support, using COMSOL
  • Fabricated and characterized cell Li-ion electrodes
  • Managed electrode imaging using SEM/FIB equipment for microstructure characterization, and 3D reconstruction modeling, resulting in better understanding of structural parameters.

Cell modeling intern

Tesla
10.2016 - 05.2017
  • Developed electrochemical-thermal (ECT) models to characterize half-cell performance, resulting in improved full-cell models (Matlab)
  • Performed image processing of 2D tomographic X-ray and SEM/FIB images for automatic segmentation, and 3D reconstruction using MATLAB and Avizo Inspect
  • Created a 3D microstructure model based on the tomographic data for electrode characterization and structural properties (such as tortuosity and porosity) computation using MATLAB.

Education

Ph.D. Chemical Engineering -

Brigham Young University
Provo, UT
01.2018

M.Sc. Chemical Engineering -

Amirkabir University of Technology
01.2011

B.Sc. Chemical Engineering -

Amirkabir University of Technology
01.2008

Skills

  • Experiment: cell and electrode design and characterization, fast charge algorithm development, cross-sectional imaging and analysis (SEM/FIB-CT scan), analytical testing (EIS, PI,CV, GITT, HPPC, RPT)
  • Instrument: potentiostat (Arbin, Gamry, BioLogic), cell assembly equipment, SEM/FIB, EDX
  • Modeling: electrochemical-thermal modeling, physics-based life modeling, empirical storage and cycling (capacity fading and DCIR growth) modeling, image processing, 3D reconstruction modeling, fast charge simulation, electrode fabrication process MD simulation
  • Software: COMSOL, MATLAB, Aviso Inspect, ImageJ, Python, JMP

Patents

  • Control-oriented physics-based calendar life model for lithium ion cells, US Patent 11287479, SF Motors Inc., 2022
  • Continuous derating fast charging method based on multiple particle reduced order model, US Patent 10829004, SF Motors Inc., 2020
  • Electric vehicle lithium batteries having non-uniform anode layer, US Patent 10673093, SF Motors Inc., 2020
  • Detection of Lithium Plating Potential with Multi-Particle Reduced-Order Model, US Patent 16237526, SF Motors Inc., 2020
  • Optimizing a temperature profile in a thermal management system of an electric vehicle, US Patent 10481623, SF Motors Inc., 2019

Selected Conference Presentations

  • Effects of Active Material Loss on Li Plating, SEI Growth, and Lifetime By a Comprehensive Physics-Based Life Model, Meeting of the Electrochemical Society, Atlanta, USA, 2019
  • Non-Uniform Li Plating Behavior of Li-Ion Cells in a Battery Pack with Bottom, Symmetric Top-Bottom, or Side Cooling Thermal Management Systems during Fast Charging, Meeting of the Electrochemical Society, Dallas, USA, 2019
  • The Effects of Cell Design on Li Plating in Li-Ion Cells: A Real Insight into Cell Design Optimization for Minimizing Li Plating, Meeting of the Electrochemical Society, Dallas, USA, 2019
  • Effects of Local Tortuosity and Porosity Heterogeneities on Charge and Discharge Performance of Li-Ion Batteries, Meeting of the Electrochemical Society, Seattle, USA, 2018
  • 3D Microstructure Modeling Using X-Ray Tomographic Images for Porosity and Tortuosity Quantification, Tesla Intern EXPO, Palo Alto, California, 2017
  • A Predictive Model of Lithium-Ion Electrode Fabrication, Including Mixing, Coating, Drying, and Calendering, Meeting of the Electrochemical Society, Hawaii, USA, 2016
  • Predicting Transport, Mechanical, and Microstructural Properties of Porous Li-Ion Battery Electrodes by a Particle-Based Simulation, 2015 Annual Meeting of AICHE, Salt Lake City, UT, 2015
  • Predictive Particle-Based Simulation of the Fabrication of Li-Ion Battery Electrodes, Meeting of the Electrochemical Society, Chicago, USA, 2015
  • Ion-Transport Characteristics of Alkaline Battery Cathodes Containing Different Graphitic Additives, Meeting of the Electrochemical Society, Chicago, USA, 2015
  • Investigation of Electronic and Ionic Conductivity in Alkaline Battery Cathodes, Material Research Society (MRS) conference, Boston, USA, 2014
  • Dynamic Particle Packing Model for Simulating Electrode Microstructure, Material Research Society (MRS) conference, Boston, USA, 2014

Selected Publications

  • A Generalized Physics-based Calendar Life Model for Li-ion Cells, Saeed Khaleghi Rahimian, Mehdi M. Forouzan, Sangwoo Han, Yifan Tang, Electrochimica Acta, 348, 343-355, 2020
  • Electrode microstructure controls localized electronic impedance in li‐ion batteries, John Vogel, Mehdi M. Forouzan, Brian A. Mazzeo, and Dean R. Wheeler, Electrochimica Acta, 279, 820-825, 2019
  • Modeling the effects of electrode microstructural heterogeneities on Li-ion battery performance and lifetime, Mehdi M. Forouzan, Brian A. Mazzeo, and Dean R. Wheeler, Journal of the Electrochemical Society, 165, 10, A2127-A2144, 2018
  • Experiment and Simulation of the Fabrication Process of a Lithium-ion Battery Cathode for Determining Microstructure and Mechanical Properties, Mehdi M. Forouzan, Chien-Wei Chao, Danilo Bustamante, Brian A. Mazzeo, Dean R. Wheeler, Journal of Power Sources, 312, 172-183, 2016
  • Tortuosity of Composite Porous Electrodes with Various Conductive Additives in an Alkaline System, Mehdi M. Forouzan, Michael Wray, Logan Robertson, Dean R. Wheeler, Journal of the Electrochemical Society, 164, 13, A3117-A3130, 2017

Timeline

Director of Cell Development

Amprius Technologies
06.2023 - Current

Senior cell scientist

Amprius Technologies
03.2020 - 06.2023

Senior characterization and modeling engineer

Insyte
11.2019 - 02.2020

Battery engineer

SF Motors
06.2018 - 11.2019

Cell modeling intern

Tesla
10.2016 - 05.2017

Cell modeling and characterization

Brigham Young University - Dean R. Wheeler-Advisor
09.2013 - 06.2018

Ph.D. Chemical Engineering -

Brigham Young University

M.Sc. Chemical Engineering -

Amirkabir University of Technology

B.Sc. Chemical Engineering -

Amirkabir University of Technology
Mehdi Forouzan