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Archives par mot-clé : Battery

What is a lithium-ion battery?

lithium-ion battery

The lithium-ion battery is one of the best-sellers of recent decades in microelectronics. It is present in most of the devices we use in our daily lives, from our mobile phones to electric cars. The 2019 Nobel Prize in Chemistry was awarded to John Goodenough, Stanley Wittingham, and Akira Yoshino, …

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An autonomous contact lens to improve human vision

lentille autonome, autonomous contact lens

Two teams from IMT Atlantique and Mines Saint-Étienne have developed an autonomous contact lens which is powered by an integrated flexible micro-battery. This invention is a world first that opens new health prospects, whilst also opening the door for scientists to develop other human-machine interfaces.   Human augmentation, a field …

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What is renewable energy storage?

renewable energy storage, stockage énergies renouvelables

The storage of green energy is an issue which concerns many sectors, whether for energy transition or for supplying power to connected objects using batteries. Thierry Djenizian, a researcher at Mines Saint-Étienne, explains the main problems to us, focusing in particular on how electrochemical storage systems work.   Why is …

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Towards a new generation of lithium batteries?

Nouvelle génération batterie lithium

The development of connected devices requires the miniaturization and integration of electronic components. Thierry Djenizian, a researcher at Mines Saint-Étienne, is working on new micrometric architectures for lithium batteries, which appear to be a very promising solution for powering smart devices. Following his talk at the IMT symposium devoted to …

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Cloud computing for longer smartphone battery life

cloud computing, Maurice Gagnaire

How can we make our smartphone batteries last longer? For Maurice Gagnaire, a researcher at Télécom ParisTech, the solution could come through mobile cloud computing. If computations currently performed by our devices could be offloaded to local servers, their batteries would have to work less. This could extend the battery …

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