White PaperManufacturing & Prototyping
Four Companies Share How They Use Simulation
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Engineers and researchers specializing in battery design and development often lean on modeling and simulation in order to understand the inner workings of batteries and predict their performance under real-world operating conditions. Multiphysics simulation, in particular, is well suited for overcoming common battery design challenges such as balancing energy density, power density, charging time, life, cost, and sustainability concerns.
In this ebook, you will gain insight into how engineers and researchers are using modeling and simulation to analyze batteries at different scales and optimize their designs. As one example, there is a story about how IAV combined sodium-ion and solid-state lithium iron phosphate battery technologies in a twin-battery design concept to open up new possibilities for car manufacturers and battery designers. In another story, you can explore the development of a pseudo-3D model of a semisolid flow battery, designed to predict how flow rate affects particle discharge and how cell voltage changes during the discharge process.
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Overview
The document discusses advancements in battery technology, particularly focusing on the design and optimization of batteries for electric vertical takeoff and landing (eVTOL) aircraft and the challenges associated with lithium-ion batteries. It highlights the importance of battery management systems (BMS) that monitor critical parameters such as voltage, current, temperature, and state of charge (SOC) to ensure safe operation and extend battery life.
One of the key innovations mentioned is the twin-battery design concept developed by IAV, which allows for greater flexibility in addressing conflicting demands in battery performance. This design enables engineers to simulate and evaluate battery performance in real-time, providing insights into internal states like current, voltage, and temperature. The use of COMSOL Multiphysics® software facilitates the creation of applications that can be integrated into existing frameworks, enhancing the efficiency of battery management and performance evaluation.
The document also addresses the issue of lithium dendrite formation, which poses a significant risk of short circuits in lithium metal electrodes. This challenge must be overcome to commercialize lithium-ion batteries effectively. The authors emphasize the need for reliable simulation tools to explore various battery configurations, materials, and geometries, which can lead to innovative solutions in battery design.
Furthermore, the document illustrates the role of simulations in minimizing dendrite formation and optimizing battery performance. By leveraging numerical simulations, researchers can confidently investigate different battery types and applications, paving the way for future advancements in battery technology.
Overall, the document underscores the critical role of advanced simulation tools like COMSOL Multiphysics® in the development of next-generation battery systems for eVTOL aircraft and other applications. It highlights the collaborative efforts of engineers and researchers to address the complexities of battery design, ensuring that future technologies can be integrated into existing systems while meeting the demands of performance, safety, and efficiency.