ExperimentalData classExperimentalData class#While PyBaMM is a modeling package, the majority of battery research is performed through experiments, whose data (cell voltage, current, temperature, …) can be generated in a wide variety of formats.
The goal of this project is to develop functionality to better interface PyBaMM with this experimental data.
In particular, the proposed ExperimentalData class should import real data and behave like the existing Solution class (generated by solving a model), so experimental data can be easily plotted and compared with simulations.
ExperimentalData class fully integrated with the PyBaMM structureToday, Twitter is one of the best and quickest ways to publicize new science, with a very active battery research community (#battchat). The goal of this project is to develop a bot that automatically generates PyBaMM simulations of battery degradation under various conditions. This will lead to:
a) increased publicity and visibility for PyBaMM, showcasing its ability to simulate a wide range of degradation mechanisms
b) improved understanding of degradation mechanisms with regular generation of new simulations that may match experiments
As a stretch goal, the bot will be able to take requests from Twitter users: the user tweets to the bot with the specifications of the simulation and the bot then runs the simulation and tweets the results back.
In PyBaMM, models are represented by expression trees. This allows the model to be defined independent of the user’s choice of parameters, spatial discretization, numerical methods and so on, which are plugged in during model processing. The goal of this project is to implement a function that renders a given expression tree in a human-readable form (e.g. by using LaTeX to generate a pdf of the model equations). This will make it easier for users to see the equations of the model that they are using.
An existing issue with some ideas for this project can be found here.
A common type of experiment in battery science is Electrochemical Impedance Spectroscopy (EIS), which is used to generate a plot known as the “Nyquist plot”. While this is typically modeled using simple “equivalent-circuit” models, the physical models implemented in PyBaMM could also be used to explain such experiments. In this project, we will
a) Develop functionality to solve a PyBaMM model in the frequency domain to generate Nyquist plots
b) Integrate with existing EIS modeling packages, such as impedance.py or pyEIS, to fit experimental data
impedance.py or pyEIS, to fit experimental dataExperimentalData class#