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Recharge Wrap-up: Ferrock a carbon-negative cement substitute, Audi makes e-diesel

A cement alternative uses recycled materials and traps CO2 rather than producing it. Invented by David Stone at the University of Arizona, Ferrock uses recycled steel dust and glass to produce a substance stronger than conventional concrete. Cement has a high carbon footprint from the high heat needed to process the limestone. Ferrock needs no such heat, and it actually uses CO2 to harden, making it, as Stone calls it, a carbon-negative material. Learn more in the video above, see the transcript at PBS NewsHour and read more at Green Car Reports. Teslarati offers a detailed rundown of Tesla's new Valet Mode feature for the Model S. Part of the Firmware 6.2 update, Valet Mode allows the owner to disable certain performance features and block personal information when letting someone else drive the car. It limits the car's to speed to 70 miles per hour, and caps output at 80 kW. It can also disable mobile app access, Homelink, Bluetooth and wifi and the "Places" function, which stores addresses for you. The folks at Teslarati did find some shortcomings in the new feature, though. Read more at Teslarati. Audi has produced its first batch of e-diesel made from water and CO2. The fuel is made by reacting hydrogen from the water with CO2 to make long-chain hydrocarbon compounds called "blue crude." That can then be refined similarly to crude oil to make e-diesel, which is a fuel free from sulfur and aromatic hydrocarbons. That e-diesel can be used on its own, or mixed with fossil fuel diesel to power a vehicle. "In developing Audi e-diesel we are promoting another fuel based on CO2 that will allow long-distance mobility with virtually no impact on the climate," says Audi Head of Sustainable Product Development Reiner Mangold. Read more in the press release below. Fuel of the future: Research facility in Dresden produces first batch of Audi e-diesel - The verdict: Pilot plant produces high-quality diesel fuel - No need for mineral oil: e-diesel made from water, CO2 and green power - Minister Wanka: "Synthetic diesel using CO2 is a huge success" Audi has taken another big step in the development of new, CO2 neutral fuels: A pilot plant in Dresden has started production of the synthetic fuel Audi e diesel. After a commissioning phase of just four months, the research facility in Dresden started producing its first batches of high-quality diesel fuel a few days ago. To demonstrate its suitability for everyday use, Federal Minister of Education and Research Prof.

Stay caffeinated at the speed of Audi

A large portion of the world would be in trouble without a daily dose of caffeine, and some of these coffee addicts are serious about the details, especially when it comes to specialties like espresso. For them, filling up a mug of regular java before hitting the road just isn't good enough, and Audi is happy to appeal to these folks' persnickety needs with one of its accessories available in Europe. The Germany luxury brand calls it the Espresso Mobil, and the fancy device plugs into a 12-volt outlet to brew up some espresso in a claimed two minutes. The user just needs to fill the contraption with water and press a button. The gadget runs on proprietary pods from Illy, however, which means coffee snobs can't pack it with their specific choice of bean. According to the Audi accessories catalog, Espresso Mobil starts at 199 euros ($217). In addition to the device, buyers gets a carrying case, two cups, a cleaning towel and 18 espresso pads. It's everything you need to make a fresh espresso while driving. Audi actually isn't the first to jump into the mobile-espresso-maker-for-cars category. It was the Italians at Fiat who launched a similar device with Lavazza a few years ago. That gadget was even more expensive at ˆ250 (about $300 at the time). Related Video:

Audi plans three electric vehicles by 2020

Audi reiterated its focus on electrification Wednesday and said it is planning three new battery-powered electric vehicles by 2020. The announcement, made at Audi's annual corporate press conference in Ingolstadt, Germany, also confirmed more electric models will follow after 2020. Audi, which is clearly making electrification one of its core strategies, has trained more than 6,000 workers in high-voltage technology and is working on quick-charging public infrastructure. While Audi did not specify the new models, it is expected to expand use the E-tron name as a sub-brand throughout its portfolio, with a new sport utility vehicle the first to arrive. Audi showed a Q8 plug-in hybrid concept in January at the Detroit Auto Show (above) and an E-Tron Quattro concept styled like a future Q6 at the 2015 Frankfurt Motor Show. Conversely, Audi said last year it would kill off the R8 E-tron supercar in a move that allows it to focus on SUVs, which offer broader sales potential. The electrification strategy is part of Audi's role as the technology lead within the Volkswagen Group, which also highlights autonomous driving. Audi has a subsidiary that's developing solutions for cities, including a robot taxi service that could be used across the VW portfolio. Meanwhile, Audi said it took a $1.9 billion charge as a result of the VW Group diesel-emission and Takata airbag scandals and turned an operating profit of $3.3 billion as part of its Wednesday announcement. The company also reiterated its product cadence, and the next-generation A7 is due in 2018 along with the Q8. A new Q4 model will join the portfolio in 2019. Related Video: