Cell Testing & Characterization - II — Lesson 2

This lesson covers the life cycle testing of cells, focusing on how many cycles a cell can last before reaching its end of life under specific use conditions. The lesson explains that these conditions can vary depending on the application of the cell, such as for electric vehicles or grid applications. It also discusses the equipment required for testing, including cell testers and temperature control chambers. The lesson further delves into the impact of variable charge rates, discharge rates, depth of discharge, and temperature on the life cycle of a cell. It also highlights the effects of depth of discharge, temperature, and charging rate on the life cycle of a cell. For instance, using a cell at lower depths of discharge can extend its life, but it would require more frequent charging.

Video Highlights

00:23 - Objective of cell life cycle testing
07:54 - Explanation of calendar aging tests
08:56 - Impact of temperature and storage state of charge on cell degradation
13:10 - Overview of various cell testing standards

Key Takeaways

- The life cycle of a cell depends on its use conditions and application.
- The equipment required for life cycle testing includes cell testers and temperature control chambers.
- The life cycle of a cell is influenced by variable charge rates, discharge rates, depth of discharge, and temperature.
- Using a cell at lower depths of discharge can extend its life, but it would require more frequent charging.
- The life cycle of a cell is also affected by the rate of charging. Faster charging can lead to higher degradation.