Technology to Improve Lithium-Ion Battery Life and Performance

Pressure Mapping Technology for Lithium Ion Battery Design

Many familiar with lithium-ion battery technology will say that it
breathes as a byproduct of routine charge/discharge cycles.

However, few methods exist to quantify the internal stress this activity may have on battery life and performance. 

 

what happens when you charge and discharge a battery? Changes in temperature, electrochemistry, and internal components, all of which contribute to changes in pressure within the battery stack housing.

If Li-Ion Battery Stack Pressures are Too High?

If Li-Ion Battery Stack Pressures are Too Low?

Higher rates of capacity fade

Plastic deformation/delamination from internal pressure

In extreme cases, thermal runaway

Too much movement for thermal expansion in the housing.

Plastic delamination/deformation

Summarized from: Cannarella, J., Arnold, C., “Stress Evolution and Capacity Fade in Constrained Lithium-Ion Pouch Cells”
Journal of Power Sources. 245 (2014) 745-75 https://doi.org/10.1016/j.jpowsour.2013.06.165


Now, here's where the I-Scan™ pressure mapping system fits in.

thin conformable sensors for lithium ion battery design

Thin, conformable sensors offer the ability to capture pressure exchanges across an entire battery cell, or
between cells.

use tekscan's i-scan system to measure battery stack pressure
identify regions of pressure on battery design

Identify regions of excessive pressure, which can result in battery failure.

long-term charge/discharge cycle testing

Collect charge/discharge cycle data over multiple months without replacing sensors.

Want to See this Application in Action? Check Out this Short Demonstration Video:


Are you Trying to Increase Battery Life and Performance?

Learn More about I-Scan ™️ Pressure Mapping Technology for Lithium-ion Battery Design. Fill out the form below and a Tekscan representative will be in touch.