Lithium-sulfur batteries theoretically offer high energy density, and are widely seen as a promising next-generation energy storage system. However – you guessed it – they have several drawbacks. Among other issues, capacity tends to fade quickly. Researchers at the DOE’s Pacific Northwest National Laboratory (PNNL) have identified one of the reasons behind this problem, and found… Read more »
Search Results Found For: "raw material"
Two-level cathode structure improves battery performance
As the search for a better battery grinds on, a lot of the attention is focused on potential cathode materials. Nickel is one possibility that shows a lot of promise – its drawback is that it is unstable and tends to have destructive reactions with the electrolyte. Now a team of scientists from the Brookhaven… Read more »
DC Fast Charging maps highlight differences between Tesla and CHAdeMO/CCS rollouts
Tesla touts its Supercharger network as a no-compromise solution for electric road trips, and has strategically placed Superchargers along well-traveled highways. Elon Musk himself has embarked on a coast-to-coast adventure in a Model S to demonstrate that it can be done in about the same timeframe as with any other vehicle. On the other hand,… Read more »
StoreDot says its battery tech charges 10 times faster
Put this one in the “If it can do what they claim, it really will be revolutionary” category. Israeli battery developer StoreDot says its EV FlashBattery can charge a 300-mile battery in 5 minutes – almost 10 times faster than today’s state of the art. In 2014, StoreDot demonstrated the FlashBattery, which it says can… Read more »
The 2016 Volvo XC90 T8 Twin Engine PHEV enters the US market with great promise
These days when most Americans think of Swedish engineering, they probably remember a frustrating experience with an Allen wrench and one too few pieces of particle board. But we didn’t always buy our Swedish creations under the same roof as our Swedish meatballs. Any American old enough to drink remembers a friend whose parents drove… Read more »
Argonne National Labs hosts the Interoperability Olympics
At Argonne National Labs, the pursuit of greater compatibility between DC fast charger EVSE and EVs connected some dots between industry standards and industry stalwarts. America’s first national lab, Argonne National Laboratory (ANL), has always been steeped in the purpose of discovering and developing sustainable energy sources for promoting national security and prosperity. While the… Read more »
Beating the polysulfide shuttle to build a solid-state battery approaching theoretical capacity
The latest advance in lithium-sulfur technology comes courtesy of a research team from Samsung and the University of Rome, who have built a solid-state Li-S battery with a capacity (∼1600 mAhg−1) approaching the theoretical value and Coulombic efficiency approaching 99%. In a paper published in the Journal of The Electrochemical Society, the team concludes that… Read more »
Fuji Pigment develops new type of aluminum-air battery
Metal-air battery technology could offer very high energy density, and is considered a promising candidate for “beyond Li-ion” next-generation batteries. Aluminum, which is abundant and cheap, is a likely anode material. Aluminum-air batteries have a theoretical specific energy of up to 8.1 kWh/kg, second only to lithium-air batteries (13.0 kWh/kg). A pioneer in the aluminum-air… Read more »
Automakers respond to tough questions about fuel cells
Fuel cell vehicles – love ‘em or hate ‘em, they’re here. The Toyota Mirai made its debut at the recent Los Angeles Auto Show, and is scheduled to go on sale next year. The 2015 Hyundai Tucson Fuel Cell has been available for lease since June. Honda plans to launch its hydrogen offering within two… Read more »
German consortium halfway to goal of reducing carbon fiber costs by 90 percent
BMW has bet big on carbon fiber – it’s a key material in the groundbreaking i3 and i8 EVs, and the Bavarian automaker is steadily increasing production of the stuff. However, the miracle material is still too expensive for most automakers to take advantage of its strength and light weight – the average cost of… Read more »