ArticleScience advances2026
Multiphase nanocomposite prelithiation agents for service life lithium replenishment in Si-based Li-ion batteries.
Chao-Fan Gu, Chen Li, Xin Chang, Min Fan, Boheng Yuan, Ji-Yuan Chen, Yi-Nan Lv, Qinghai Meng, Yu-Guo Guo
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Chao-Fan GuCAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, P. R. China.ORCID 0009-0000-9828-5005 Chen LiCAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, P. R. China.
Xin ChangCAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, P. R. China.
Min FanCAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, P. R. China.
Boheng YuanCAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, P. R. China.
Ji-Yuan ChenCAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, P. R. China.ORCID 0009-0006-0575-5092 Yi-Nan LvCAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, P. R. China.
Qinghai MengCAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, P. R. China.ORCID 0000-0002-9264-0886 Yu-Guo GuoCAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100190, P. R. China.ORCID 0000-0003-0322-8476 Funding
No grant is acknowledged in the PubMed record.
6 · The paper itselfAbstract
High-energy density lithium-ion batteries (LIBs) using Si-based anodes are expected to dominate the lithium-ion power battery market in the near future. However, the Si anode suffers from continuous capacity degradation during initial and subsequent cycles. Prelithiation agents can effectively replenish lithium and enhance battery capacity, while currently investigated cathode prelithiation agents generally only prelithiate at the initial cycle. Herein, we have developed a multiphase nanocomposite prelithiation agent (MNCP) on the basis of two distinct mechanisms-oxygen oxidation and conversion reaction-aiming to provide service life lithium replenishment for Si-based LIBs. MNCP presents several tunable delithiation plateaus to prelithiate anodes in the initial and extending cycles with exceeding 600 milliampere-hours per gram without gas generation. This work emphasizes a mechanism-based design strategy for functional prelithiation agents, aiming to comprehensively optimize the performance of advanced LIBs.
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PMID42268962
PMCPMC13251865
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