August 3, 2022 10:00 a.m.–4:00 p.m. IST

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COMSOL Day: Batteries & Fuel Cells

Modeling batteries, fuel cells, and electrolyzers

Battery, fuel cell, and electrolyzer development has been an integral part of the electric vehicle and power industries, particularly as the investment in eco-friendly technologies has increased. The COMSOL Multiphysics® software is a multiphysics simulation platform that helps you set up physics-based, high-fidelity models of electrochemical cells, including material transport, charge transport, heat transfer, fluid flow, and electrochemical reactions. You can also incorporate lumped models into system models and digital twins, such as electric vehicle drivetrains, and create simulation apps for use by nonexperts.

Join us for COMSOL Day: Batteries & Fuel Cells to learn from keynote talks and technical presentations about the benefits of using multiphysics simulation to study and design batteries, fuel cells, and electrolyzers. We will also give an overview of the relevant features in COMSOL Multiphysics® and demonstrate how the software can be used across large development teams.

Register for this free, 1-day online event below.

Schedule

10:00 a.m.
Welcoming Remarks
10:05 a.m.

The electric car revolution is progressing at an accelerating pace. The development of the lithium-ion battery has made this innovation possible, and modeling and simulation have been crucial for this development. With its high energy density, the fuel cell offers a future alternative for trucks that can be used in combination with batteries. COMSOL Multiphysics® has been one of the most commonly used modeling and simulation software platforms for the study of batteries and fuel cells since the original release of the add-on Batteries & Fuel Cells Module.

The Battery Design Module and Fuel Cell & Electrolyzer Module are the successors to the Batteries & Fuel Cells Module and offer even more feature-rich modeling and simulation capabilities. These modules allow for the fundamental investigation of unit cells as well as the design of battery packs and fuel cell stacks. Evaluation of performance and safety, with thermal management, short-circuit, and leakage scenarios, can be completed with ready-made functionality.

In this session, we give you an introduction to modeling and simulation of batteries and fuel cells using COMSOL Multiphysics®. We demonstrate models from the microscale, where the detailed structure of the porous electrodes is investigated, to the pack and stack scale. The use of electrochemical impedance spectroscopy and transient, stationary (fuel cells), and charge–discharge (batteries only) studies is also demonstrated.

10:50 a.m.
Break
10:55 a.m.

Thermal management is an important aspect across different automotive applications. Within vehicle electrification, thermal management is crucial. Batteries, fuel cells, and many other components produce or require heat as they work best within narrow temperature intervals.

In this session, an overview of the features and benefits offered by COMSOL Multiphysics® to model thermal management of systems through convection and conduction will be demonstrated and presented. In particular, a demonstration of forced convective cooling will be shown.

11:40 a.m.
Break
11:45 a.m.

Two-phase flow is prevalent in many electrochemical systems, such as fuel cells and electrolyzers. The CFD Module together with the Fuel Cell and Electolyzer Module have inbuilt features that can model such phenomena. These can include disperse and surface tracking methods.

This session will focus on the two-phase features of the Fuel Cell & Electrolyzer Module, and how these can be coupled to electrode kinetics and chemical species transport.

12:30 p.m.
Break
12:35 p.m.
Keynote Speaker
Analyzing Thermal Runaway and Improving Battery Pack Designs with Simulation

Analyzing Thermal Runaway and Improving Battery Pack Designs with Simulation

Parmender Singh, Exicom Energy Systems Ltd

Thermal modeling is an essential part of designing battery packs. Thermal runaway is one of the prime concerns for the commercialization of Li-ion battery packs, and requires a well-known and accurate modeling approach. Lumped approach-based modeling, for instance, provides significant results for external short-circuit tests that lead to thermal runaway. The Exicom R&D Mobility team extensively works on thermal modeling and identifies the hot spots and parameters that lead to thermal runaway in battery packs. The team developed a model in COMSOL® for an external short-circuit test for Li-ion cylindrical cells. The simulation results match experimental data with 90% accuracy.

1:00 p.m.

Thermal Management of Batteries with COMSOL Multiphysics®

Cyril John, Murata Business Engineering (India)

In this session, keynote speaker Cyril John will discuss how he used the battery modeling capabilities of the COMSOL® software to:

  • Select appropriate cells
  • Perform thermal verification to ensure cell arrangement for optimum heat distribution in a battery pack
  • Analyze the electrothermal properties of busbar designs to reduce losses

He will also discuss verification of thermal management efficiency, thermal propagation, and the species escape path.

1:25 p.m.
Keynote Speaker
1:50 p.m.
Break for Lunch
1:50 p.m.

Learn the fundamental workflow of COMSOL Multiphysics®. This introductory demonstration will show you all of the key modeling steps, including geometry creation, setting up physics, meshing, solving, and postprocessing.

2:20 p.m.

Many parameters required for electrochemical models are difficult, if not impossible, to measure or determine empirically. COMSOL Multiphysics® allows you to use physics-based models together with optimization methods to extract quantified approximations of these parameters. Lumped models are simplified versions of more complex battery designs, whose use can be justified under certain conditions. The main advantage of lumped models is increased computational speed, especially for transient cases. When used in conjunction with parameter estimation, validated lumped models can analyze 3D battery packs faster and more accurately within a defined range of operation.

In this session, we will demonstrate how parameter estimation can be used for characterizing battery and fuel cell design, as well as operation. We will also introduce you to to the lumped modeling approach for computing parameters such as ohmic, activation, and concentration overpotential losses as well as cell voltage prediction.

3:05 p.m.
Break
3:10 p.m.

Battery systems are often burdened by unwanted side reactions at the electrodes. The Battery Design Module can be used to simulate various aging and degradation mechanisms and the resulting capacity fade in batteries.

Any arbitrary by-reaction, such as hydrogen and oxygen evolution, the growth of a solid electrolyte interface due to deposition, metal plating, metal corrosion, and graphite oxidation can be included in a battery model through the flexibility built within the Battery Design Module.

In this session, we will present and demonstrate the capabilities of this module to model degradation in batteries and the process of building and running a capacity fade model.

3:55 p.m.
Closing Remarks

COMSOL Speakers

Rustam Shekhar
Applications Engineer II

Rustam Singh Shekhar is an applications engineer at COMSOL, specializing in electrochemistry and battery simulation. He received his PhD in energy science and engineering from IIT Bombay, masters in chemical engineering from IIT Hyderabad, and bachelors in chemical engineering from MITS Gwalior. His expertise includes electrode microstructure and cell- and pack-level modeling.

Kamakshi Jagannathan
Technical Product Manager

Kamakshi Jagannathan works as a product specialist in the electrochemical development team at COMSOL. She received her PhD from the University of Wisconsin, Madison and was a postdoctoral research associate at the University of Leeds, UK. Prior to joining COMSOL in 2012, Kamakshi worked as a senior researcher at General Motors Global R&D, Bangalore, for 5 years.

Kiran Deshpande
Technical Product Manager

Kiran Deshpande works as a technical product manager on the electrochemical development team at COMSOL. He received his PhD in chemical engineering from the University of Sheffield. Prior to joining COMSOL in 2012, Kiran worked as a senior researcher at General Motors Global R&D, Bangalore, for five years.

Anirudh Narasimha Katti
Regional Sales Manager

Anirudh Narasimha Katti is a regional sales manager at COMSOL India. He received his bachelor's degree in mechanical engineering from B.M.S. College of Engineering, Bangalore, and his master's degree from the University of Illinois, Chicago. He founded DWAIL Pvt Ltd., which develops products for agriculture postharvest processing.

Cyril John
Murata Business Engineering (India)

Cyril John is the technical lead at Murata Business Engineering (India), handling thermal design and management as well as structural integrity of batteries. He has expertise in battery intelligence modeling, battery and system integration, and charging and swapping stations. John previously worked in battery product design at ION Energy and in electromechanical design and development at Emerson Electric India.

Register for COMSOL Day: Batteries & Fuel Cells

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COMSOL Day Details

Local Start Time:
August 3, 2022 | 10:00 a.m. IST (UTC+05:30)
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Invited Speakers

Parmender Singh Exicom Tele-Systems Ltd.

Parmender Singh currently leads the technology team working on mobility R&D at Exicom Tele-Systems Ltd. His expertise lies in battery management system (BMS) algorithms for cell balancing, thermal modeling, and parameters including state of charge (SOC), state of health (SOH), state of power (SOP), and state of energy (SOE) . He has extensive experience in the mathematical modeling of Li-ion cells, including electrochemical and electrochemical machining (ECM) modeling. He received his PhD in engineering from Banasthali Vidyapith, where he completed his thesis, “Smart Monitoring of Li-ion Battery Ageing Using Magnetic Field Probing”. He has hands-on experience with different simulation tools, including COMSOL Multiphysics®, MATLAB®, and Simulink®.