Pure silicon electrode and solid electrolyte: a new Li-ion battery architecture

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    Xavier Boivinet

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    The University of San Diego (UCSD), in the United States, and the Korean industrialist LG Energy Solution have developed an all- solid e with a negative electrode in pure silicon (Si) (99.9% by mass). ” These jobs are unique and we are the first to take an interest in this architecture ”, says Shirley Meng, professor of nanotechnology and materials science at UCSD and corresponding author of the study published in the journal Science September 24.

    Converge here two channels of R&D in batteries. First, the tendency to add silicon in the graphite of the negative electrodes of conventional Li-ion batteries to accommodate more lithium. Then the replacement of the liquid electrolyte by a solid electrolyte, generally associated with the use of metallic lithium (Li-metal) in the negative electrode, to increase the energy density and the

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