NAWA presents 3D nano-electrode technology at Advanced Automotive Battery Conference

Source: press release, 6 December 2022

New 3D nano-electrode, incorporating NAWA’s patented Vertically Aligned Carbon Nanotubes (VACNT), combines high ionic, electrical, and thermal conductivity
New 3D nano-electrode, incorporating NAWA’s patented Vertically Aligned Carbon Nanotubes (VACNT), combines high ionic, electrical, and thermal conductivity (illustration: NAWA)

NAWA, a pioneer of revolutionary 3D nanotechnology to unleash fast, sustainable, and efficient energy storage, will present its breakthrough 3D nano-electrode at the Advanced Automotive Battery Conference on 7 December, an innovation capable of unlocking next-level performance benefits for all types of electric vehicle batteries.

Based on NAWA’s patented vertically-aligned carbon nanotube (VACNT) design, which is also the basis of its next-generation ultracapacitors, the company’s 3D nano-electrode combines high ionic conductivity – thanks to a 3D fully accessible nanostructure – with high electrical and thermal conductivity, provided by its arrangement of 100 billion nanotubes per sq cm, all vertically aligned.

Highly effective, just a thin layer of VACNT (1% of the overall thickness of the electrode) has a huge impact on performance, greatly improving the link between a battery’s active material and its copper current collector, with incredibly low equivalent serial resistance and high adhesion, enabling multiple performance benefits.

Overcoming the limitations of existing automotive battery electrodes, which are based on inefficient powders, and agnostic to any chemistry (from lithium to sodium and flow batteries) or electrolyte, NAWA’s new 3D nano-electrode can solve many of the performance constraints faced by global automotive battery makers, with significant benefits in terms of charging time and energy storage.

From its production line located in Aix-en-Provence, southern France, NAWA has already demonstrated that VACNT can be grown simultaneously and homogeneously on both sides of a substrate at Atmospheric Pressure using a Chemical Vapor Deposition (APCVD) process, in a roll-to-roll manner. The process not only demonstrates the ability to grow double-sided VACNT from a few micrometres to over 200 micrometres simultaneously on a width of 90 cm, but also to selectively grow VACNT, which is essential for electrode designs.

With the global lithium-ion battery market predicted to be worth more than USD 135 billion in 2031, NAWA believes that it has a technology that can be a critical component for the industry.

Pascal Boulanger, NAWA Founder and CTO says, “NAWA’s 3D nano-electrode brings a step change in design and performance thanks to VACNT technology, overcoming the limitations of existing, inefficient powder-based electrodes, bringing significant benefits in charging time and energy density. Agnostic to battery electrode chemistry and electrolyte, our 3D nano-electrode technology will allow electric vehicle batteries to charge faster, go further and for longer – and all with a product based on one of the world’s most abundant and green materials: carbon.”