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Battery internal temperature estimation using electrochemical impedance

The ability to estimate battery temperature is necessary for battery management systems to accurately predict parameters such as state of charge (SOC) and state of health (SOH), and to mitigate problems such as high temperatures triggering thermal runaway and battery fires. While incidents such as battery fires are rare, occurring in anywhere from one in 1 million to one in 10 million batteries according to the best estimates, their consequences include costly recalls of millions of batteries and potential endangerment of human life.

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FUTURE Vehicles Conference 2013

On the morning of the 15th of January 2013, Japan’s two biggest airlines grounded all their Boeing 787 aircraft after one was forced to make an emergency landing when a lithium-ion battery caught fire. Meanwhile, a group of bright minds from academia and industry were gathered in a conference room in the University of Warwick ready to clash heads on their latest research efforts towards understanding the science behind electrochemical storage technologies.

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