Science Advances

Supplementary Materials

This PDF file includes:

  • Fig. S1. Etching of C/SiO2 nanoparticles in HF solution.
  • Fig. S2. Top-view SEM characterization of HCS electrode and ALD Al2O3 HCS electrode after initial electrochemical lithium plating.
  • Fig. S3. XPS characterization.
  • Fig. S4. Cross-sectional SEM characterization of ALD Al2O3/HCS electrode after lithium plating.
  • Fig. S5. Optical and SEM images of ALD Al2O3/HCS electrodes after different amounts of electrochemical lithium plating.
  • Fig. S6. Cycle performance in carbonate electrolyte with and without additives.
  • Fig. S7. Cycle performance of symmetric cells.
  • Fig. S8. Cycle performance in ether electrolyte.
  • Fig. S9. STEM-EDX line scan of ALD AlF3–coated HCS.
  • Fig. S10. Additional cycle performance data of ALD Al2O3/HCS and ALD AlF3/HCS electrodes.
  • References (38, 39)

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