Catalysis of silica-based anode (de-)lithiation: Compositional design within a hollow structure for accelerated conversion reaction kinetics

Yabin Shen, Zhen Cao, Yingqiang Wu, Yong Cheng, Hongjin Xue, Yeguo Zou, Gang Liu, Dongming Yin, Luigi Cavallo, Limin Wang, Jun Ming

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

New hierarchical hollow SiO2 spheres (HHSs) decorated with metal nanoparticles (i.e., Co, Co-HHS) were designed using an in situ self-assembly approach. The Co nanoparticles were found to have a catalytic effect on (de-)lithiation of SiO2 and hence in storing lithium. Then, an extremely high capacity of 932 mA h g-1 and good cycling stability for more than 1000 cycles were demonstrated in the corresponding lithium battery. In addition, the lithium-ion full batteries of the Co-HHS versus lithium layered oxide cathode (e.g., LiNi1/3Co1/3Mn1/3O2, NCM333) were introduced and showed good performance, demonstrating the promising application of the Co-HHS, in particular for pursuing high-energy-density batteries. This journal is
Original languageEnglish (US)
Pages (from-to)12306-12313
Number of pages8
JournalJournal of Materials Chemistry A
Volume8
Issue number25
DOIs
StatePublished - Jun 2 2020

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