Upcoming Webinars

3D Lithium-ion Battery Electrochemical Modeling Using Ansys Fluent

October 15, 2020
10 AM EDT / 2 PM GMT

It is important to understand the phenomena taking place inside a battery in order to enhance its performance. However, visualizing extremely small-scale phenomena can be problematic. Ansys’ 3D lithium-ion (Li-ion) electrochemical model can solve the phenomena inside of a battery related to potential, Li, Li-ion transport and electrochemical reaction. These results will help to understand battery performance due to electrode construction, porosity, Li concentration, material properties and so on. In this webinar, we introduce the 3D lithium-ion battery electrochemical model theory in Fluent along with its graphic user interface.


On Demand Webinars

Ansys’ Solution for Structural Integrity Assessment of Li-ion Battery Packs

This webinar focuses on battery structural analysis to address critical design challenges, such as vibration, reliability and crash safety. We will demonstrate Ansys’ solution for structural integrity assessment of Li-ion battery packs, including smart geometry cleanup and an integrated meshing process, to solve static, transient, thermal stress, dynamics and explicit dynamic multiphysics problems in the Ansys Workbench platform. Using multiphysics simulation, we can consider all critical design goals simultaneously to find the best possible structural design for a battery.

View Now

Lithium-ion Battery Safety Modeling in Ansys Fluent

With the growth of the electric vehicle market, the demand for smaller and lighter batteries with greater capacity has never been higher. However, a key issue limit in Li-ion battery (LIB) applications is the potential safety. Thermal abuse, which is induced by either poor manufacturing quality control or poor thermal management design in nominal and off-nominal conditions, is the most dangerous scenario among various safety risks. Due to the complexity of the electrochemical/thermal system, LIB safety testing cannot provide sufficient information to show the mechanism of thermal runaway propagation during internal shorting. Therefore, a robust numerical model is the key to understanding the thermal runaway propagation and identifying the dominant parameters to mitigate thermal runaway in a battery module or pack. In Ansys Fluent, a comprehensive three-dimensional safety model for a Li-ion cell, which is based on a multiscale, multidimensional (MSMD) battery modeling methodology, has been developed. This safety model provides a unique capability to investigate the effects of an internal short circuit on thermal runaway propagation in a Li-ion battery. In this webinar, a three-dimensional thermo-electro-chemical model will be introduced. The model will be validated by comparing with the testing data. Moreover, a demo case will be shown to provide further insights into a passive heat sink design for Li-ion battery packs, which can be used to propose a configuration of a battery thermal management system to mitigate thermal runaway.

View Now

Toward a Greener World — Ansys Battery Management Systems Solutions

Electric vehicles are becoming more cost-effective as Li-ion battery technology progresses. State of the art Li-ion batteries have increased ranges, faster charge times, lower costs and extended life. Behind every large-scale battery is an intelligent battery management system (BMS) that operates as a control center. An effective BMS extends the useful life of batteries by promoting safe charging and discharging, a balanced charge across batteries and efficient communication with the operator. In this webinar, Ansys solutions for end-to-end BMS design will be introduced. Ansys tools enable functional safety analysis of battery systems and software, efficient and robust control algorithms, along with fast controller prototyping, design and verification. This provides a complete battery system simulation workflow across different Ansys platforms. Ansys’ BMS solution helps you understand the interaction between different components and how to fine-tune embedded models to get the most out of a battery system.

View Now

Battery Thermal Management Using a Functional Mock-Up Unit

In an electrothermal coupled battery analysis, a battery equivalent circuit model (ECM) is coupled with a conjugate heat transfer (CHT) computational fluid dynamics (CFD) model. Ansys Fluent offers a variety of built-in tools for this type of coupled analysis. In some cases, the user has an existing ECM and would like to take advantage of Fluent's advanced battery thermal capability using it. In Ansys 2020 R2, this can be achieved by importing a customer ECM into Fluent through a functional mock-up unit (FMU) and coupling it with Fluent's advanced battery model to run a co-simulation. This enables the user to combine Fluent's powerful battery capability with a custom battery ECM model. This webinar will showcase the FMU import capabilities within Fluent in Ansys 2020 R2, and its application to a 14S1P automotive battery module.

View Now

Battery Pack Electrothermal Coupled Model or System Analysis

A battery pack model is required for many applications, including electric powertrain simulation, BMS design and digital twin generation. This webinar presents an electrothermal coupled Li-ion battery pack model with cold plate liquid cooling, a common design in electric vehicles. The model starts from the hybrid pulse power characterization (HPPC) test data at different state of charge (SoC) and temperature levels. Such information is used for cell-level battery equivalent circuit model (ECM) parameter identification. Multiple cell ECMs are connected in series/parallel to create a module ECM. The battery thermal performance of the module is simulated first by computational fluid dynamics (CFD) for the module. Then, a thermal reduced-order model (ROM) is created out of the CFD solution. The thermal ROM is two-way coupled with the battery module ECM to form a complete battery module model. Different modules will have different heat transfer coefficient values, calculated separately from a cold plate conjugate heat transfer analysis. Multiple module models are connected to create a battery pack model. The complete pack model can be used for system simulation or BMS design using Ansys system tools or any third-party system tool through functional mock-up units (FMUs).

View Now