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Keywords:

  • LiFePO4;
  • lithium ion battery;
  • morphology;
  • templating
Thumbnail image of graphical abstract

The conflicting demands on Li-ion electrodes, combining high ionic conductivity with high electrode density, are achieved by hydrogen carbonate salt templates creating 3D highly interconnected ionic pathways. Demonstrated for carbon coated LiFePO4, this exceptionally simple and cheap templating method results in electrodes with excellent high rate capacity retention, combined with very high electrode densities reaching ∼2 g cm−3.