S1 Uptake and Diffusion of Ions in Organically Synthesized Porous Carbon for Battery Anode Applications SUPPORTING INFORMATION P. Heasman, A. Trewin* Lancaster University, Lancaster, LA1 4YB, UK Contents 1. OSPC-1 synthesis 2. System set up 3. Uptake 4. Lithium ion diffusion 5. Sodium ion diffusion 6. Potassium ion diffusion 7. Magnesium ion diffusion 8. Calcium ion diffusion