Search Results Found For: "Extreme E"

A closer look at coulombic efficiency

Peter Ulrix and Stef Leemans of PEC explain how the very delicate process of measuring a cell’s coulombic efficiency could significantly speed up development times. In May, the California Center for Sustainable Energy (CCSE) put out its results for America’s biggest survey of plug-in drivers yet. More than 2,000 California EV owners responded, and while… Read more »

VIDEO: Drayson Racing claims new FIA World Land Speed record

Drayson Racing has announced that it has set a new World Electric Land Speed Record. With former UK Science Minister Lord Drayson behind the wheel, the Drayson B12 69/EV electric Le Mans Prototype made two blistering runs on a runway at Elvington Airfield in Yorkshire, England, reaching an average top speed of 204.185 mph.  … Read more »

A new LEAF, localized manufacturing, and a focus on infrastructure

With a longer range and a lower price, the 2013 Nissan LEAF screams upgrade, but it’s only one small aspect of the company’s aggressive EV strategy. Proprietary, localized manufacturing and improved infrastructure also play key roles in Nissan’s plan for world domination electrification. Sometime back in the 60s, Mr or Mrs Ghosn must have put… Read more »

Linear Technology’s new active cell balancer

Linear’s new addition to the battery pack systems family is what it calls a “high efficiency bidirectional multicell active balancer” (part number LTC3300). Have you heard the old adage – no two snowflakes are alike? Well, the same goes for cells in a battery pack. No matter how precise the manufacturing techniques, there will always… Read more »

OXIS Energy bets on lithium-sulfur

Though it may have a stinky reputation, sulfur could set EVs on the path to total ICE replacement if energy-dense, low-weight lithium-sulfur batteries become the norm. British-based OXIS Energy is banking its business on it. If American clean energy industries are to take full advantage of the emerging lithium-sulfur (Li-S) battery chemistry, they just may… Read more »

Ultracapacitors creep into automotive

Maxwell looks to leverage its early ultracapacitor experience into a ubiquitous, low-cost, high-volume complement to batteries. Power sources like internal combustion engines and advanced battery packs work great as continuous suppliers of energy. But during the highest peak loads, both sacrifice efficiency attempting to meet the power delivery demands. And pushing these devices to their… Read more »

Working together: avoiding EVSE-to-vehicle interoperability issues

Intertek’s Rich Byczek on avoiding EVSE-to-vehicle interoperability issues.   Back in January, Plugincars.com published an article by Colby Trudeau – a Honda Fit EV owner, Plug In America volunteer, and electrical engineer at Qualcomm Technologies – that detailed his charging troubles using Ecotality’s Blink charging stations at work. Trudeau found that after about 20 minutes… Read more »

Erik Spek on battery abuse testing, improving safety, and developing standards

(This article originally appeared in Charged Issue 7 – MAR/APR 2013) Q&A with Erik Spek: The Chief Engineer at TÜV SÜD Canada on battery abuse testing, improving safety, and developing standards. When analyzing the current state of lithium-ion technology, it helps to look back at the development of the nickel metal hydride battery (NiMH). Some argued that hybrid automotive… Read more »