STDA020A February   2026  – June 2026 BQ79826Z-Q1 , BQ79881-Q1

1.   1
2.   Abstract
3.   Trademarks
4. 1Introduction
5. 2Analyzing Batteries With EIS
   1. 2.1 What Has Changed? Regulation Driving Earlier Detection
   2. 2.2 What is EIS?
   3. 2.3 How Does a Battery EIS Work?
   4. 2.4 How to Use Impedance Data
   5. 2.5 What Other Insights Does EIS Provide?
6. 3Impact of EIS: Three Use Cases
   1. 3.1 Thermal Runaway Detection
   2. 3.2 Faster Charging
   3. 3.3 Charge and Availability
7. 4Measuring EIS
   1. 4.1 EIS System Architecture
   2. 4.2 Parameters for EIS Measurement
   3. 4.3 TI's EIS Chipset
   4. 4.4 Reference Designs
8. 5Conclusion