equivalent-circuit-model

An equivalent circuit model (ECM) for a battery cell, module, and pack

A software tool to online identification of lithium-ion battery equivalent circuit model parameters

Due to the electrification megatrend, estimating battery model parameters using impedance data is of great interest, since typically battery model parameters are estimated using time domain data, and the estimation is usually slow.

Python package for the analysis of electrochemical impedance spectra.

Implementation of Pontryagin's Minimum Principle for microgrid energy storage control

This is a open-source lithium-ion battery management system software. It contains code pertaining to lithium-ion battery, pack, and application simulations. Lithium-ion battery simulations include equivalent circuit model and physics-based models. This Python package uses C++- and Python-based backend code for faster processing and calculations.

A Python library for transient response analysis and optimization of ultrasound transducers using the Butterworth-Van Dyke (BVD) equivalent circuit model.

Data analysis program for Electrochemical Impedance Spectrocopy (EIS); determination of equivalent circuit models.

从零复现 Severson et al. 2019（Nature Energy）电池循环寿命预测：官方 test_ind 口径 EN6 中位百分比误差 5.9%（95% bootstrap CI 5.1~8.9，论文点估计 9.1%），并拆解出 33.6%→5.9% 的完整误差归因链。原创拓展：NASA 数据 34 颗标签审计、零样本跨数据集迁移、域间隙四实验拆账、KM 生存分析。附 13 篇攻略文档、可复跑脚本、测试与 CI，每个结论都有数据与复核记录。

Thevenin ECM parameter identification (NASA PCoE) + early cycle-life prediction from 100 cycles (MIT-Stanford, Severson 2019 protocol) + PyBaMM physics ruler + third-party identification audit. Measurable is not identifiable.

PyQt5 simulator showing why cold Li-ion packs lose range and power (equivalent-circuit model)

面向 DeepSeek Harness 的 EIS 等效电路拟合全流程硬规范（Apache-2.0）：给出阻抗数据即可产出可复现、可发表的拟合结果。含 E1–E18 硬门槛、物理初值反解、多起点全局拟合、剖面似然与 bootstrap 可辨识性、AICc 模型比较、批次核查与固定交付物校验。

Python battery pack simulator: ECM electro-thermal model, RTE, BMS, thermal runaway, drive cycles, EV/grid/UPS analysis.

Two-RC Thevenin equivalent circuit battery model with thermal, hysteresis, and pack-scaling dynamics, in Octave/MATLAB

Files for the VIBE website

Lithium-ion cell characterization toolkit: parses DOE test spreadsheets into executable waveforms, and extracts battery-model parameters — DC internal resistance, OCV, voltage hysteresis, and 1RC–5RC Thevenin equivalent-circuit values — from cycler data. Python, NumPy/SciPy, Streamlit.

Open-source battery digital twin for electro-thermal simulation, degradation scenarios, SOH modeling, and measured held-out validation.

Extract 3RC equivalent circuit model parameters from EIS data for CALB L148N58A prismatic lithium-ion battery cells

Adaptive 2RC Thevenin EKF for LG INR18650 MJ1 with autonomous excitation gating and causal online Bayesian R0 adaptation in MATLAB/Simulink.

1RC/2RC electro-thermal BESS with EKF/UKF SoC estimation, thermal SOP limits and ASTM E1049-85 degradation. OCV tables match PyBaMM to 5 uV, 185 tests.