Tech Features

CalBattery’s new SiGr anode material hopes to break the battery bottleneck

California Lithium Battery took advantage of national and local government programs so it could focus on its revolutionary silicon-graphene anode material. Now with EV, electronics, and energy storage customers lining up, it hopes to break the battery bottleneck. When you think about a bottleneck, you think about constriction – something that moves in a particular… Read more »

Creatively displaying BMS data

Brian Gallagher has had a variety of engineering and management roles designing human machine interfaces (HMIs) in the biotech and automotive industries. Most recently, he is the cofounder of Andromeda Interfaces, which develops HMIs for many different industries. With the adoption of lithium-ion battery technology in electric vehicles, the role of battery management systems (BMS) has become… Read more »

oneDRIVE of a kind: KLD Energy’s new propulsion system

In August 2013, KLD Energy announced that it has received official UN and IEC certification for the battery pack solution of its proprietary electric drive system. The announcement marked the end of a five-year development effort and the beginning of high-volume production for the company’s ultra-efficient turnkey oneDRIVE propulsion system.  There are hundreds of different… Read more »

The new A123 looks a lot like the old A123: Q&A with Jeff Kessen

Start-ups are tough. The majority of them do not succeed, particularly those built around new technologies in burgeoning industries. Nowhere is this more evident than in the EV industry. Even with political support and government grants, many companies have miscalculated the market and the capital required to make it into the black.  In October 2012,… Read more »

Leyden Energy’s Li-imide electrolyte and the rise of start-stop vehicles

Battery start-up Leyden Energy plans to profit from the forecasted groundswell at the bottom of the electrification ladder: start-stop vehicles The average person may see the trademarked Li-imide logo and rush to the nearest convenience store to try a tangy new soft drink. However, you, being a somewhat chemistry-savvy electric vehicle enthusiast, know that Li-imide’s likely… Read more »

Web of Power: Spider9’s Operating System for Energy

Spider9 weaves a matrix for stationary energy storage and shows that when it comes to fitting battery technology into electric vehicles, it’s not all for one and one for all. Many real-world technologists and engineers take inspiration from the worlds of science fiction, where recurring themes of systems theory take shape in the Grid of… Read more »

The challenges of battery state of charge measurements

Your BMS’s fuel gauge is lying to you. Here’s why that’s not a big deal. Battery management systems (BMSs), and the fuel gauges in them, are a part of daily life for almost everyone. You’ll find them in vehicles, laptops, cell phones, grid-attached energy storage – basically, anything that does work and needs to be plugged in,… Read more »

Multiphase cooling: CapTherm’s technology takes the heat off

Canada’s CapTherm Systems’ multiphase cooling technology could take the heat off of EV batteries and charging stations more efficiently, taking up less space using fewer materials while improving longevity and performance. Charged takes an early peek at this innovation before it goes commercial next year. If you’ve never dropped your smartphone 10 feet onto pavement,… Read more »

A closer look at back electromotive force

Why motors generate and generators motor In a previous article I took a closer look at regenerative braking, and mentioned an old engineering saying that every motor is a generator and every generator is a motor (along with the caveat that some are more suited to the opposite purpose than others). This time around I’ll… Read more »

Plug In America research: Tesla Roadster battery longevity exceeds projections

By Tom Saxton, Chief Science Officer, Plug In America Many current and prospective electric vehicle owners are curious to better understand battery pack longevity. There’s plenty of technical data on how batteries lose capacity with use, but a lot of that testing subjects the batteries to extreme and rapid charge/discharge cycles, very unlike the much gentler use… Read more »