In a new report, Navigant Research profiles 11 Li-ion battery vendors that are active in the EV market, and rates them on 13 criteria, including systems integration, safety engineering, chemistry performance, geographic reach, manufacturing and product performance, pricing, and overall corporate financial health. According to Navigant, “Li-ion batteries have won the race to be the chemistry… Read more »
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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 »
It’s in the details: Digatron Firing Circuits’ new stop-start testing rig
Digatron Firing Circuits’ new stop-start testing rig examines the limitations of lead-acid batteries and the inadequacy of traditional static tests. As the battery in a stop-start system ages, the fuel efficiency advantages are curtailed. It’s a real problem found in some first-generation systems, and has led many to question the methodology used in urban-efficiency tests…. Read more »
GM to produce next-generation EVs in South Korea
General Motors plans to produce its next generation of electric cars at its Bupyeong, South Korea, plant, as the US automaker increases its investment in the fast-growing vehicle technology. GM Korea head Sergio Rocha told journalists at this week’s Seoul Auto Show that the new model will be designed from the ground up as an… Read more »
US adding 180 public chargers per month
Both government agencies and private owners are deploying public charging stations in the US at a combined rate of about 180 units a month, according to the latest figures from the DOE. As of this writing, the US has 5,548 public charging stations, and at the current pace, will have about 7,400 by the end… Read more »
Johnson Controls to supply Li-ion batteries for Torqeedo’s electric boat motors
Torqeedo, a German-based maker of electric outboard motors and accessories, will use Johnson Controls’ Li-ion automotive battery packs to power its Deep Blue 80 hp electric boat motor. Johnson modified its PHEV battery, making it waterproof and resistant to salt water, for Torqeedo’s marine application. The battery behemoth will begin production of the new battery… Read more »
Volt battery supplier forced to return $842K in DOE funds
The bad news: a colorful scandal has emerged at another of the companies that received DOE funds to build EV-related components. The good news: this time the feds got wise to the hanky-panky in time, and are forcing the company to make amends. In 2009, Korean battery maker LG Chem received a $150-million federal grant,… Read more »
Driving drivetrain development: Schaeffler North America’s VP and CTO on the future of electric drive
Jeff Hemphill talks eAxles, two-speed transmissions, in-wheel motors and more. For multinational companies with thousands of employees, collaborating can be a challenge. In 2011, the Schaeffler Group found that divisions from their three product brands – INA, LuK and FAG – were working on different electrification and renewable topics without really talking to each… Read more »
A closer look at switched reluctance motors
The electronically-switched reluctance motor – often shortened to the switched reluctance motor, or SRM – has been gaining in popularity over the last decade because it is simple, robust, and arguably the least expensive of all motor types to manufacture. The reasons for the relatively late blooming of the SRM – the first reluctance motor… Read more »