High-performance Carbon Nanotube-based Composites

Adaxius is developing a technology to form carbon nanotube (CNT)-based composites that maintain the exceptional and tunable mechanical, thermal and electrical properties of carbon nanotubes. The technology also features compatibility with smart manufacturing, including additive manufacturing that would dramatically elevate the flexibility of designing and manufacturing structural components with complicated geometries.

Critical Need for the Technology

Manufacturing always tries to find an optimal point among many specifications for structural materials. On the one hand, more robust materials reduce the use of materials while achieving the same mechanical strength, which leads to a reduction in manufacturing costs. On the other hand, handling and storing commodities made of bulky materials consumes a lot of energy. Today, even the most popular electrical vehicle usually accommodates 4-5 passengers, while its battery weighs as much as 5-10 persons.

The strength of existing lightweight materials such as aluminum alloys, although strong enough for many applications, still cannot meet the requirements of others. If high-strength materials such as steel are used, the product’s weight will be greatly increased. Also, it is often difficult to manufacture large and complex workpieces made from tough materials with relatively inexpensive processes.

Carbon nanotubes (CNTs) could address the challenges above. They are lighter than aluminum but stronger than steel. However, in previous attempts of making CNT-based composites, the properties of the CNTs were significantly degraded due to the interfacial incompatibility and distribution inhomogeneity of the CNT filler in the matrix. A composite formation technology that can maintain the exceptional properties of CNTs is highly desirable.

 Supplemental Need for this Technology

There is a broad and lasting demand for light and strong structural materials. A few of many examples include sporting equipment, high-speed vehicles and aircraft, vessels for hydrogen storage and aerospace applications are a few of many examples. Adaxius is contributing to developing CNT-based composite materials that can meet these requirements.

Competition

  • Mechanical properties of the CNT-based composites made from the conventional formation methods are much lower than that of the original carbon nanotubes. The composites’ homogeneity is also seriously affected by the randomized glomerates of the CNT filler.
  • Current manufacturing technologies for structural materials face challenges in delivering extremely high mechanical strength while keeping lightweight. It is also difficult to realize the tunable properties of the materials through these technologies.
  • Majority of the structural components are usually manufactured via conventional processes such as injection molding instead of the emerging additive manufacturing; therefore, many devices with complicated geometry are not available in the market.

Potential Markets

  • Battery enclosures for electric vehicles
  • Vessels for hydrogen storage
  • High strength materials for applications like wind turbine blades
  • High performance sporting equipment
  • Potentially many defense applications

Key Innovation

Adaxius is developing a family of CNT-based composite materials that maintains the original properties of carbon nanotubes.

R & D Status of Project

The technology has demonstrated a significant improvement of strength in a polymer composite after introduced the CNT filler with the new formation process. The project is in the beginning stages and will be updated as it progresses.

Team Overview

Hongjun Zeng, PhD., CTO and Co-founder:  Scientist and principal investigator of multiple governmental (NSF, DOE, NIH and DOD, etc.) innovation projects with fund > $5.5M in total. R&D director in advanced manufacturing and nanotechnology. Inventor of 13 patents and author of 60+ journal papers. Winner of R&D 100 Award.

Neil Kane, President:  Experienced entrepreneur, founder of many hard-tech companies including Advanced Diamond Technologies (spun out of Argonne National Laboratory). Entrepreneur in Residence at the University of Illinois. Recognizes for Excellence in Entrepreneurship by the National Science Foundation.

Technology Profile

Status: R&D
Primary industry: Materials
Category (i.e. tech keywords): Structural materials

Estimated annual revenue: Pre Revenue
Employs: NS
Social challenge: Saving energy and increasing device performances
R&D commercial collaborator: NA