Si/Graphite Anodes for Solid-State Batteries: Composition Selection via Electrochemical and Chemo-Mechanical Properties.

• Tác giả: Marvin A Kraft, Phuong Nam Le Pham, Wolfgang G Zeier
• Ngôn ngữ: eng
• Thông tin xuất bản: United States : ACS applied materials & interfaces , 2025
• Bộ sưu tập: NCBI
• ID: 87662

Tóm tắt

Silicon-graphite composites are among the most widely used anode materials in conventional lithium-ion batteries and recently have been considered as promising candidates in lithium-ion solid-state batteries. In this work, we investigate the influence of the silicon content on the electrochemical and chemo-mechanical behaviors of different Si/graphite composites in solid-state batteries. All anode composites show that an increase of Si presence in the composite enhances the cyclability at a high current density. Using direct-current (DC) polarization and temperature-dependent electrochemical impedance spectroscopy, we observe that both electronic and ionic conductivities are sufficient across the composition series.