Battery Pack Modeling

Use the Battery Builder app to interactively create a battery pack with thermal effects and build a Simscape™ model that you can use as a starting point for your simulations.

Create and build a Simscape™ system model of a battery module with inter-cell heat exchange in Simscape™ Battery™. Inter-cell heat transfer mechanisms are relevant in the design of battery systems, including analyzing battery thermal propagation and evaluating electro-thermal load cycles in virtual verification. The heat transfer mechanisms supported in Simscape™ Battery™ are conduction, convection, and radiation. To create the system model of a battery module, you must first create the Cell and ParallelAssembly objects that comprise the battery module, and then use the buildBattery function. The buildBattery function generates Simscape models for these Simscape Battery objects:

Create and build a Simscape™ system model of a module assembly with a multi-module cooling plate by using Simscape™ Battery™. Large cooling plates that span across several battery modules are quite common in the design of battery systems, including in the automotive and consumer electronics sector. The workflow in this example automates the process of thermally coupling several modules together to a single battery cooling plate. To create the system model of a battery ModuleAssembly, you must first create the Cell, ParallelAssembly, and Module objects that comprise the battery module assembly, and then use the buildBattery function. The buildBattery function generates Simscape models for these Simscape Battery objects:

Create and build a Simscape™ system model of a pack with a multi-module cooling plate by using Simscape™ Battery™ software. Large cooling plates that span across several battery modules are common in the design of battery systems in the automotive and consumer electronics sector. In this example, you thermally couple several modules to a single battery cooling plate. To create the system model of a battery Pack, you must first create the Cell, ParallelAssembly, Module, and ModuleAssembly objects that comprise the battery pack, and then use the buildBattery function. This function creates a library in your working folder that contains a system model block of a battery pack. Use this model as reference in your simulations. You can modify the run-time parameters for this model block, such as the battery cell resistance or the battery open-circuit voltage, after you create the model. To define the run-time parameters, specify them in the block mask of the generated Simscape models or use the MaskParameters argument of the buildBattery function.

Create and build Simscape™ system models for various battery designs and configurations based on cylindrical battery cells in Simscape™ Battery™. The buildBattery function allows you to automatically generate Simscape models for these Simscape Battery objects:

Create and build Simscape™ system models for various battery designs and configurations based on pouch battery cells in Simscape™ Battery™. The buildBattery function allows you to automatically generate Simscape models for these Simscape Battery objects:

How the temperature gradient over the cell surface varies during the fast charging of a battery. Fast charging is one of the key enablers for the adoption of battery electric vehicles. Fast charging pushes a considerable amount of current inside the battery. This process produces a lot of heat. It is important to understand how temperatures spatially vary in a battery and how this affects its long term warranty. Typically, to ensure a good battery life with uniform degradation, the temperature gradient over the cell surface should not exceed around five or six degrees centigrade. This example uses Simscape™ Battery™ to model the cell electrical dynamics and the PDE Toolbox™ to generate the reduced order model (ROM) that describes the battery 3-D thermal model. This example uses a 50Ahr battery (Valence:U27_36XP) and charges it for 10 minutes from an initial state of charge (SOC) of 15%. Then, the example analyzes the maximum gradient in the cell temperature.

Model a vanadium redox flow battery (VRFB), calculate the state of charge (SOC), and assess the impact of electrolyte flow rate on the performance of the battery.

Characterize a battery cell for electric vehicle applications using the test method from [1]. This example estimates the parameters of BAK N18650CL-29 18650 type lithium-ion cells [2] at five different ambient temperatures. The battery hybrid pulse power characterization (HPPC) test is performed in controlled environmental chambers.