Silicon (Si) and silicon dioxide (SiO₂) are high-capacity alternatives to graphite for lithium-ion batteries, yet they suffer from volume expansion and cycling instability. This study develops Si@B-C/rGO and SiO₂@B-C/rGO composite anodes using sol-gel and modified Hummer’s methods. The architecture integrates active cores with a boron-doped carbon shell and a reduced graphene oxide (rGO) network. Boron doping enhances electronic conductivity and Li-ion kinetics, while the multi-layered shell buffers mechanical stress. Results indicate that SiO₂-based composites offer superior cycling stability, while Si-based variants provide higher capacity. This synergetic design provides a scalable and cost-effective strategy for next-generation high-performance energy storage.

Азайзия А. (науч. рук. Дорогов М.В.) Synergetic design of si@b-c/rgo core-shell nanostructures for high-stability lithium-ion battery anodes // Сборник тезисов докладов конгресса молодых ученых. Электронное издание. – СПб: Университет ИТМО, [2026]. URL: https://kmu.itmo.ru/digests/article/17281