Electrode Balancing of a Lithium-Ion Battery with COMSOL®

Henrik Ekström May 16, 2019

Electrode balancing is an important consideration for battery cell engineers. Get an overview and mathematical framework of this phenomenon and learn how to analyze it in a lithium-ion battery.

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Bridget Paulus May 2, 2019

EChT offers many benefits for the treatment and removal of cancerous tumors, so why isn’t it a widely accepted method yet? First, we need a better understanding of tumor destruction mechanisms.

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Bridget Paulus April 11, 2019

Large-format batteries are found in energy storage systems; electric, hybrid, and plug-in cars; unmanned vehicles; light-rail trains; and more. We discuss modeling a component of these batteries.

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Ed Fontes February 20, 2019

By combining high-fidelity multiphysics models with lightweight models and measured data, engineers can create digital twins to understand, predict, optimize, and control real-world systems.

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Henrik Ekström August 29, 2018

Get an introduction to the theory behind the Nernst-Planck-Poisson equations, Donnan potentials, and how to model ion-exchange membranes in batteries and fuel cells.

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Brianne Christopher June 14, 2018

What good are fully autonomous vehicles if they run on fuel? To develop hybrid and electric autonomous vehicles, we need to design efficient and optimized battery management systems.

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Brianne Christopher May 24, 2018

The lead-acid battery in your car is not much different from the original one developed by Gaston Planté in 1859. 1 change is that you can now analyze the current distribution using simulation.

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Caty Fairclough December 21, 2017

The chemical energy in vanadium redox flow batteries is contained in liquid electrolytes and stored in external tanks. They can be used to improve grid energy storage and renewable energy.

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Bridget Cunningham December 7, 2016

Traditional lithium-ion batteries use an electrolyte based on a flammable liquid solvent, which can cause them to catch fire if they overheat. In recent years, nonflammable solid electrolytes have been investigated as an alternative to improve battery design and safety. Optimizing this technology for industrial applications, however, requires a better understanding of the electrochemical processes inside the device. Simulation serves as a valuable tool for this purpose, helping to realize the use of solid-state lithium-ion batteries in the near future.

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Edmund Dickinson October 25, 2016

A short circuit in a battery is bad news: the chemical energy stored in the battery is lost as heat, rather than being used to power a device. Short circuits create intense heat, which can degrade battery materials or lead to fires or explosions due to thermal runaway. To avoid conditions that lead to short circuits in devices and ensure that short circuits do not cause unsafe operating conditions, we can study lithium-ion battery designs with the COMSOL Multiphysics® software.

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Scott Smith August 24, 2016

Resistive and capacitive effects are fundamental to the understanding of electrochemical systems. The resistances and capacitances due to mass transfer can be represented through physical equations describing the corresponding fundamental phenomena, like diffusion. Further, when considering the resistive or capacitive behavior of double layers, thin films, and reaction kinetics, such effects can be treated simply through physical conditions relating electrochemical currents and voltages. Lastly, resistances and capacitances from external loading circuits can easily be represented in the COMSOL Multiphysics® software.

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