Cell Testing

Exponent laboratories are equipped to test a large variety of cell chemistries, form factors and configurations. Our experienced engineers can design unique application specific test protocols that are tailored to evaluate a cell’s performance in its operating environment.

We commonly conduct a variety of high-level performance and reliability tests on cells including:

• Normal operation evaluation
• Capacity analysis and testing to identify degradation mechanisms
• Cell performance evaluation under a variety of temperature conditions (constant or cyclic)
• Calendar life testing
• Cell shelf life testing
• Cell service life testing
• Vent testing

We also conduct cell stress tests to evaluate response to a variety of stresses including:

• Electrical
• Electrical overstress/overcharge
• Electrical overdischarge
• Electrical life cycles
• Electrical short circuit performance
• Environmental
• Heating including hot box, flame attack, and UL projectile testing
• Altitude simulation
• High/low humidity
• Mechanical
• Random and controlled impacts 
• Random and controlled drops
• Steady force application
• Random and controlled vibration
• Mechanical shock
• Crush and puncture, including nail penetration
• Customized user abuse scenarios
• Vehicle accident scenarios