A unique material for a world of possibilities.
Our carbon nanostructures (CNS) consist of a unique network of crosslinked and branched carbon nanotubes, and are produced using a proprietary roll-to-roll chemical vapor deposition (CVD) process. The CNS network can provide benefits in silicon-based anode applications, which require highly conductive electrical networks throughout the silicon-based anode during cycling, while maintaining the mechanical integrity. Depending on the customer’s anode formulation, our ENERMAX™ CNS dispersions can deliver improved performance or similar performance at more affordable cost compared to single-walled CNT (SWCNT).
Silicon-containing anodes offer higher energy density for lithium-ion batteries. However, these anodes can exhibit limited cycle life due to significant volumetric changes in the silicon during charging / discharging cycles. The addition of small amounts of CNS to anode compositions (typically 0.1-0.5 wt%) can improve cycling performance due to the more reliable conductive network established by the unique structure of CNS. CNS is available as ENERMAX™ aqueous dispersions.
The crosslinked, branched structure of CNS can improve certain key performance features such as high electrical conductivity, low electrical percolation threshold and synergies with other formulation components or additives.
Electrons are conducted through covalently connected branched tubes as well as contacts between tubes. This forms a strong conductive network at a very low loading that can withstand anode volume expansion.
Electrons are mostly conducted through the contacts between tubes that are easily disrupted by anode volume expansion.
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