Porocarb® Lion - Carbon Functional Additives for Lithium-Ion Batteries

In order to increase the cell level energy density, inactive materials need to be minimized in batteries and cells. Increasing the thickness of electrodes is one method of reducing inactive materials such as current collector, but it further drives the problems of transport of mass and charge and requires a highly engineered porosity.

The addition of Heraeus Porocarb® Lion maintains the ionic pathways and electrolyte supply at high electrode loadings and at high press densities. The interconnected network of pores allows for fast electrolyte penetration into the bulk of the electrode compared to electrodes containing conventional conductive additives.

Advantages of Heraeus Porocarb® Lion:

  • Increases volumetric energy density by up to +20% due to increased electrode loading and savings in inactive components
  • Enables +50% higher rate capability due to ion conducting enhancement
  • Reduces process costs by up to 50% due to faster electrolyte filling and aging during cell manufacturing process
  • Save 20% inactive material due to doubling electrode loading
  • Improves battery cycle life due to homogeneous mass transport and reaction

For all our synthetic grades, we can offer a variety of customized post treatments in order to meet your system’s requirements such as graphitization, particle sizing, surface treatments and more. In order to meet the growing demand for carbon additives for improving the anode performance Heraeus is developing a new grade of Porocarb® Lion 210.

Technical Data

Typical Material Properties Method Porocarb® Lion 403* Porocarb® Lion 410
Porocarb® Lion 210
Surface Area (BET)
ISO 9277:10 50-60 40-60 10-20
Electrical Conductivity (0.75kN/cm2)
Internal Heraeus Method 3-5 4-6 10-15
Tapped Bulk Density
ASTM D6393 (2008) 0.20 0.17 0.24
Aerated Density
ASTM D6393 (2008) 0.12 0.11 0.14
D50 Particle Size
Mastersizer 3000 1-2 3-4 2-3

* Standard Grade

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