高容量氟掺杂碳包覆纳米硅负极材料: 气相氟化法制备及其储锂性能
苏楠1(
), 邱介山1,3(), 王治宇1,2()
), 邱介山1,3(), 王治宇1,2()
F-doped Carbon Coated Nano-Si Anode with High Capacity: Preparation by Gaseous Fluorination and Performance for Lithium Storage
SU Nan1(), QIU Jieshan1,3(), WANG Zhiyu1,2()
), QIU Jieshan1,3(), WANG Zhiyu1,2()
图8. (a)充放电循环后的Si@C和(d)Si@C-F负极的表面SEM照片; (b, e)循环前和(c, f)循环后(b, c)Si@C和(e, f) Si@C-F负极截面的SEM照片; 充放电循环后Si@C和Si@C-F负极表面SEI膜的高分辨(g)F1s及(h)Li1s XPS谱图
Fig. 8. Top SEM images of (a) Si@C and (d) Si@C-F anodes after cycling; Cross-section SEM images of (b, c) Si@C and (e, f) Si@C-F anodes (b, e) before and (c, f) after cycling; High-resolution (g) F1s and (h) Li1s XPS spectra of SEI on Si@C and Si@C-F anodes after cycling
