Science Advances

Supplementary Materials

This PDF file includes:

  • Fig. S1. Effect of Li strip thickness on the electrochemical performance of the composite electrode.
  • Fig. S2. Schematics and the corresponding SEM characterization of dense composite Li electrode with nonporous PE film as the skeleton.
  • Fig. S3. Li stripping on composite Li electrode with porous and dense PE films.
  • Fig. S4. Comparison of long-term cycling of symmetric cells.
  • Fig. S5. Morphology comparison of Li electrode center part with outer region, before and after cycling.
  • Fig. S6. Characterizations of crystalline PI film.
  • Fig. S7. Li stripping study of composite Li electrode without crystal PI support.
  • Fig. S8. Li stripping study of composite Li electrode with rigid PI support.
  • Fig. S9. Symmetric cycling of control Li electrode, composite Li electrode without PI support, and composite electrode with PI support.
  • Fig. S10. High-capacity symmetric cycling of various electrodes under a high current density of 8 mA/cm2 for a total of 32 mAh/cm2 in an EC/DEC electrolyte containing 10% FEC and 1% VC.
  • Fig. S11. Detailed information about Li usage for both composite Li and control Li anode and the related calculations.
  • Fig. S12. The magnified simulation cell geometry in COMSOL.

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