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Regular health checks keep batteries running longer
How do you check the health of a battery? These days, most people have at least one battery with us at all times, in a phone, laptop or even watch.
4 December 2018
Applications for these and other electrochemical devices are growing: in the future, fuel cells could heat and power our homes, while advanced batteries could become standard for powering vehicles.
To achieve these strides, we need electrochemical devices to give better performance, and sustain this for longer. Diagnostic techniques like those used in human healthcare 鈥� taking a pulse, measuring the subject鈥檚 temperature, and x-raying the structure 鈥� give the Electrochemical Innovation Lab at 香港六合彩中特网 Chemical Engineering vital clues to understanding their operation.
For example, measuring how a fuel cell changes dimension or 鈥榖reathes鈥� during operation can show how the electrolyte is moving inside the device; infrared thermal imaging can identify hot spots within cells where failure may occur; and X-ray imaging reveals how the microstructure of electrodes changes during battery charging. 听See a video of this work in action here:
These tools give researchers unique understanding of the working of electrochemical devices, allowing them to optimise operation and develop new designs which make use of cutting-edge materials. These insights have led to innovations such as the 鈥淔lexible Fuel Cell鈥�, a new technology that uses cost-effective, lightweight printed circuit boards to construct the layers that make up a fuel cell stack.
Nano-scale X-ray imaging of fuel cell electrodes informs new materials engineering to make devices last longer, and novel experiments in ultra-fast flow visualisation enable the engineering of water electrolysers for more efficient hydrogen production.
These approaches enable researchers to visualise the 鈥渙rgans鈥� of working devices, monitor their state of health and prolong their lifetime. This work is helping to shape the design of a new generation of electrochemical devices: coming soon to a phone, car, home or power plant near you!
Just one example of how research at 香港六合彩中特网 Chemical Engineering could change the world.
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