## New IACMI collaboration to develop advanced carbon fiber for hydrogen, natural gas storage tanks; $2.7M DOE award ##### 31 July 2020 The Institute for Advanced Composites Manufacturing Innovation (IACMI) will receive$2.7 million from the US Department of Energy (DOE) to develop and validate technology that will reduce the cost of manufacturing high-performance carbon fiber by 25% to make composite natural gas or hydrogen fuel tanks to power cars and trucks.

Fuel tanks add significantly to a vehicle’s cost, impeding the use of these clean fuels in US transportation. Throughout IACMI’s first five years of funding, the Manufacturing USA institute has focused one of its technology areas on compressed gas storage (CGS) tanks, making headway in innovations of materials and processes that lead to wider adoption of the technology in novel applications.

Validating the use of low-cost, high-strength carbon fiber for compressed hydrogen and natural gas storage tanks will help expand technology choices for ground transportation. Significant cost reduction is especially difficult for the type of carbon fiber used in CSG tanks and this project addresses that challenge.

—IACMI CEO John Hopkins

Hopkins said while composite fuel tanks are lighter than other options, they have also been relatively expensive. Well over half of the composite fuel tank’s cost is attributed to carbon fiber used in its manufacture. Reducing the cost of making carbon fiber will also lower the cost of composite fuel tanks making them a viable alternative to improve storage options and with no reduction of fuel tank performance.

The new award is one of 18 projects and approximately \$64 million in DOE funding that will support the H2@Scale vision for affordable hydrogen production, storage, distribution, and use. Four of the 18 projects focus on composite fuel tanks. The projects will support the next round of research, development, and demonstration (RD&D) activities under H2@Scale’s multi-year initiative to fully realize hydrogen’s benefits across the economy. (Earlier post.)

DOE will fund the projects through its Office of Energy Efficiency and Renewable Energy’s (EERE) Hydrogen and Fuel Cell Technologies Office. The projects will feature collaborations with EERE’s Advanced Manufacturing Office to manufacture reliable, affordable electrolyzers and with EERE’s Vehicle Technologies Office to develop low-cost, high-strength carbon fiber for hydrogen storage tanks.

Hopkins said in addition to advancing carbon fiber technology for CGS tanks, the project will validate how collaboration by industry, government and academia partners advances composites innovation.

For this project, IACMI will leverage its unique consortium network of partners, including:

• Prescott Composites headquartered in San Diego, CA, will validate the melt spinning and carbon fiber production technologies at a US site to be selected during the project.

• JR Automation headquartered in Holland, MI, will design and fabricate the melt processing equipment at its facility in Nashville, TN.

• Hexagon R&D located in Lincoln, NE, will fabricate and test composite fuel tanks.

• High Energy Sales, based in Charlotte, NC, will provide technical support on equipment and process design, operation, maintenance, and troubleshooting.

• Oak Ridge National Laboratory (ORNL) in Oak Ridge, TN, will develop and scale the melt spinning process and heat treatment protocol. Carbon fiber for tank fabrication and testing will be produced at the US Department of Energy’s Carbon Fiber Technology Facility at ORNL.

• Virginia Tech, whose main campus is in Blacksburg, VA, will provide chemistry support on polyacrylonitrile, also called PAN, polymer formulation and testing.