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Article | REF: D3342 V2

Microbatteries -Microsources of energy in thin layers

Authors: Alain LEVASSEUR, Brigitte PECQUENARD, Philippe VINATIER, Raphaël SALOT, Frédéric LE CRAS, Michel MARTIN

Publication date: May 10, 2009, Review date: September 15, 2020 | Lire en français

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    1. Lithium microbattery: principle and specific features

    1.1 The benefits of lithium electrochemical systems

    Among the many R&D projects currently being carried out on microbatteries, those involving systems with a lithium metal negative electrode are particularly promising.

    There are three main reasons for this:

    • the potential of the Li + /Li couple is the lowest of all redox couples ( E 0 = – 3 V/ENH); lithium is in fact the most reductive element. It can be combined with any other material involving a redox couple and capable of inserting lithium, which then forms the positive electrode. The generator's potential difference can be as high as 3 to 5 V, depending on the material...

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