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DOE issues Request for Information on hydrogen storage for onboard vehicle applications

Green Car Congress

Currently, carbon fiber (CF) reinforced polymer (CFRP) composites are used to make COPVs. A primary cost driver of the composite materials and processing is the synthesis and conversion of precursor polymer into CF. Another cost driver is the polymer resin. COPVs are typically made using epoxy type resins.

Hydrogen 150
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Audi updates A3 Sportback g-tron with increased tank volume for greater natural gas range

Green Car Congress

Compared to gasoline, combustion of natural gas emits 25% less CO 2 due to the lowest carbon content of all hydrocarbons. Just as before, there are two tanks made of glass fiber-reinforced polymer (GFRP/CFRP) beneath the luggage compartment floor of the five-door car, each of which hold roughly seven kilograms (15.4 lb) of gas.

Audi 186
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PEM fuel cell X-ray CT study details effects of temperature and moisture on performance

Green Car Congress

Polymer electrolyte membrane (PEM) fuel cells require precise temperature and moisture controls to be at their best. The performance of polymer-electrolyte fuel cells (PEFCs) and other multiphase flow technologies is significantly dependent on liquid-water management. Measurements were taken over the course of about four hours.

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Audi A4 and A5 now available to order as g-tron in Europe; Audi e-gas for 3 years as standard

Green Car Congress

The high-strength, safe gas tanks made from carbon fiber-reinforced polymer (CFRP) and glass fiber-reinforced polymer (GFRP) are located beneath the rearward structure. Audi g-tron customers receive a document that confirms their car will be supplied with Audi e-gas and informs them about the certification.

Audi 150
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DOE issues RFI for hydrogen delivery R&D, targeting cost of $2-4 gge

Green Car Congress

Composite carbon fiber and steel vessels are a potential alternative. To become economically competitive with steel, lower-cost, high-strength carbon fiber and improved batch-to-batch carbon fiber quality are needed.

Cost Of 199
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Audi to introduce natural gas A3 Sportback g-tron at year’s end; CO2-neutral e-gas

Green Car Congress

The inner layer consists of gas-impermeable polyamide polymer, while a second layer of carbon fiber-reinforced polymer (CFRP) gives the tank its extremely high strength; a third layer of glass fiber reinforced polymer (GFRP) provides rugged protection against damage from the outside.

Audi 296
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Audi introduces new A4 Avant g-tron; Audi e-gas offered as standard

Green Car Congress

The driver information system shows the fuel consumption in the active operating mode. The second layer, a composite winding of carbon fiber-reinforced polymer (CFRP) and glass fiber-reinforced polymer (GFRP), provides for maximum strength. Their inner layer is a gas-tight matrix of polyamide.

Audi 186