Novel SiOx/Cu3Si/Cu anode materials for lithium-ion batteries

Preparation of a N-doped Si/Cu/C anode for high-performance lithium-ion batteries

“…5(d)–(f) that compared with Si/NC and Si/Cu, the charge and discharge curves of the first, third, and fifth cycles of the Si/Cu/NC sample have the same shape, indicating that the polarization of the sample is small. 53 Its good cyclic stability was preliminarily demonstrated. It can be clearly seen from Fig.…”

Co-synthesis and Electrochemical Investigation of the Nitrogen-Doped Carbon Layer with Metallic Nano Beads on the SiOx Anode for Lithium Secondary Batteries

“…In panels b–d of Figure , R ct decreases as cycling progresses, particularly in SiO x /N–C/Cu, which quickly stabilizes after the first cycle (formation cycle). These results agree with the above-mentioned electrochemical studies, indicating that the N-doped carbon layer and Cu nano beads suppress the interfacial resistance and enhance the electrical conductivity of the electrode. − …”

Recent progress on performance modulation and mechanism study of silicon-based anodes

“…The electrochemical properties of SiO x compounds can also be enhanced significantly by metal doping, which increases the conductivity and promotes the transfer of Li + in SiO x materials. Ouyang's group 67 proposed SiO x /Cu 3 Si/Cu composites that can be readily prepared by self-selective electroless deposition followed by rapid thermal annealing. The metal Cu and Cu 3 Si alloy acted as a conductive framework to enhance the conductivity and buffer the volume variations of the SiO x anode.…”