CHASM Advanced Materials, Inc.

NTeC for Battery Materials CHASM’s NTeC™ is not a simple additive. The platform delivers truly enhanced particles where specialized carbon nanotubes are grown onto other particles such as carbon black, cement, silicon and a variety of other materials. The NTeC synthesis process is fast, dramatically reducing manufacturing time and expense compared to traditional approaches. Better Batteries This nanotube hybrid material is quite easy to handle and integrate into cylindrical battery cells, coin cells, and pouch cells. As the material is in the solid state, it can be mixed with a surfactant and binder to form a slurry. This slurry can then be spread onto a copper foil and dried, yielding a porous film with low resistance. No specialized processes are required to integrate these materials with other standard battery materials. The web of CNTs forms a highly porous surface on top of the core particles. The porous nature of this nanotube hybrid material provides a number of benefits. When used as a conductive additive for cathodes in Li-ion batteries, NTeC delivers: Lower Internal Resistance The multi-walled CNTs have high electrical conductivity along the axial direction, allowing for ballistic charge transport. As the internal resistance of the CNT layer is lower, less power is lost as heat during charging/discharging. The lower resistance of the CNT layer provides faster charging compared to conventional cathodes. Higher Thermal Conductivity: CNTs have high thermal conductivity along the axial direction, allowing any heat to be easily transported away from the cathode. This provides additional protection against temperature rise, heating during overcharging, and thermal failure. Greater Li + Storage: The porous nature of the CNT means the exposed surface area to volume ratio is larger than that of a conventional cathode, which provides greater charge and discharge capacity, respectively. Robust Interparticle Connections: The CNT layer allows particles to easily agglomerate with each other and form strong mechanical connections. This aids ballistic charge transport through the cathode material.