TIAX Develops Short-Circuit Sensing System to Increase Safety of Lithium-Ion Batteries

5 years ago by Eric Loveday 1

This electric BYD e6 taxi burned to the ground last May.

Though lithium-ion batteries seem to be inherently safe (at least according to limited statistics available in automotive applications), improved safety is always on our list of top priorities.

That’s why a safety sensor system, designed and developed by TIAX, intrigues us.  The system, which simply detects short circuits within a lithium-ion cell, could advance safety of electric vehicles.

As Dr. Brain Barnett, vice-president of TIAX explains:

Approximate location of lithium-ion battery pack in typical electric vehicle.

“Safety incidents in lithium-ion batteries, while infrequent, can be hazardous for consumers and can result in expensive recalls. The primary cause of these safety incidents is short circuits inside cells, which are not present at the point of manufacture and which, to date, have been impossible to detect in the field.”

“The use of our sensor system provides early warning of developing hazardous conditions due to internal shorts thus enabling a range of appropriate interventions.”

TIAX claims its safety sensing system preempts short circuits, but it’s unclear how this is accomplished.  The TIAX setup is claimed to be  compatible with all lithium-ion battery chemistries and requires no modification to individual cells, which means that it’s easy to incorporate into existing designs.

Though developed for safety purposes, TIAX believes its system could extend the life of lithium-ion batteries.  And that’s a plus that’s worthy of recognition, too.

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One response to "TIAX Develops Short-Circuit Sensing System to Increase Safety of Lithium-Ion Batteries"

  1. Anthony says:

    Forget GM or Ford needing this safety system, Boeing should check it out for their beleaguered 787!