OPERANDO SANS OF LITHIUM-ION BATTERIES USING CARBON-COATED SILICON NANOPARTICLES ANODES
The aim of the present proposal is to follow in situ/operando process of lithium insertion and de-insertion in a Silicon based lithium-ion battery along charge/discharge. We focus on new anodes prepared with core-shell silicon carbon-coated nanoparticles (Si@C-NPs) of typically 20-30 nm. We want to follow the evolution of the size, shape and composition of the NPs by SANS, taking advantage of the sensitivity of neutrons to lithium. We have shown in our previous ex situ experiments on these materials that SANS is well suited to characterize the evolution of the Si-NPs anodes during cycling. With this operando experiment we want to correlate the real time morphological changes to the battery performances.
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MILLOT Coraline; COLIN Jean Francois; GEBEL Gerard; LEFEVRE Guillaume; LYONNARD Sandrine; MENDIL JAKANI Hakima and PORCAR Lionel. (2016). OPERANDO SANS OF LITHIUM-ION BATTERIES USING CARBON-COATED SILICON NANOPARTICLES ANODES. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-04-106
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