Tesla Model S - 18650 Cell

NCR-18650B

18650 Cells

Cell safety features

PTC (Positive Temp Coefficient) thermistor
Over charge pressure sense, CID (Current Interrupt Device)

Tesla Model S - Panasonic lithium-ion battery cell

• Cell format is standard 18650
  

Tesla’s Liquid-Cooled Module features 444 18650 cells per module.
7104 cells total

Central rod inside the jelly roll deforms at higher temperature, causing battery cell to collapse downwards in case of thermal runaway

Each 18650 cell is connected to a busbar with 1 mm wide connector which serves as current collector and physical fuse