Lithium‑ion batteries power everything from smartphones to electric vehicles.
They offer high energy density, relatively low weight and good cycle life compared to older chemistries.
A typical lithium‑ion battery pack includes:
- Cells (cylindrical, prismatic or pouch)
- A battery management system (BMS)
- Thermal management
- Protection circuitry
Understanding the basics of lithium‑ion technology is essential for anyone building energy storage systems, battery‑powered devices or automation platforms that monitor and control power usage.