28 Apr '15, 3pm

First X-ray Views Inside Overheating Lithium-ion Batteries

First X-ray Views Inside Overheating Lithium-ion Batteries

For the first time, scientists have looked inside a lithium-ion battery as it failed due to overheating. The researchers suggest learning more about such "thermal runaways" can help improve the design and safety of these batteries. When a lithium-ion battery overheats , it can burn through pockets, burst into flames , or even explode. Although such thermal runaways are rare, they do happen regularly enough to lead some engineers to explore the creation of lithium-ion batteries with their own fire alarms or search for signal processing tricks that can predict fires . To learn more about how thermal runaway happens—and perhaps how to prevent it—scientists at University College London and their colleagues scanned overheating lithium-ion batteries at the European Synchrotron Radiation Facility in Grenoble, France. The image resolution from the X-rays generated at this particle...

Full article: http://spectrum.ieee.org/energywise/consumer-electronics/...

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