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Lithium batteries, between efficiency and danger

Lithium batteries, between efficiency and danger


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The lithium ion batteries are accumulators commonly used in consumer electronics. When it comes to rechargeable batteries, the ion of lithium they are able to offer the best weight / power ratio. The density of lithium batteries is equal to 200Wh / kg, laboratories around the globe are working on new technologies, so others have been born lithium batteries, it is the lithium-air batteries which carry a theoretical maximum density of 3450Wh / kg.

The current lithium batteries they are found in notebooks, smartphones and numerous electric cars. When it comes to accumulators, another problem is related to the regulation of the temperature and, the lithium batteries they seem to be particularly sensitive to overheating. The chemistry of lithium ion batteries they can experience overload and for this reason, inside one battery to the ions of lithium safety systems have been included to prevent overheating.

Very often we have heard of "cell phones exploded ", this phenomenon is due precisely to the overheating of the lithium ion battery. In fact, despite the safety systems that provide relief valves to control the internal pressure, recall to the factory is very frequent. It is for this reason that the need arose to develop control systems to identify the defects of the lithium batteries since their production.

In this panorama, the latest news comes from Purdue University with a system capable of improving the quality and reliability of lithium batteries and cut waste and inefficiencies related to the production process.

The image above is the result of a diagnostic test carried out using the new Purdue University instrument. The test detects the defects of the lithium ion batteries. Defects not only cause overheating but also lower battery life.

A lithium battery how many charging cycles can it withstand?
The duration of lithium batteries Another sad note of this accumulator is that over time, it loses its ability to store energy. The Purdue University instrument highlights the defects and inconsistencies found in the thickness of the electrodes, this is the crucial factor affecting battery life.



Video: Lithium Battery Causing Extreme Fumes When Cut (June 2022).


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