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Charged Electric Vehicles Magazine
Issue 60: April-June 2022

Featuring

The promise of wireless charging: smaller batteries, longer battery life, fewer charging stations

Q&A with Momentum Dynamics Wireless charging is nothing new—Charged has covered wireless EV charging since at least 2011—but it may be that its true value is only coming into focus now, as more and more commercial and transit fleets are electrifying. There are many reasons (safety, reliability, liability) that a fleet operator might not want… Read more »

The EV raw materials crunch: How bad, how long, how to solve it?

This article originally appeared in Issue 60: April-June 2022 Subscribe now Every new technology must overcome a series of temporary constraints on its way to widespread adoption. Since modern EVs appeared a decade ago, they’ve motored past many of these bottlenecks, (or hurdles, or roadblocks—pick your preferred metaphor). Range has increased, access to charging infrastructure has expanded,… Read more »

A closer look at brushed AC motors in EVs

Everything old is new again: BMW’s fifth-generation eDrive features a wound-field synchronous AC motor Brushed DC (and AC/DC universal) motors are much maligned for a number of reasons, but one of the chief—if, perhaps, somewhat exaggerated—complaints is that the graphite brushes, and the segmented copper commutator they ride on, wear out over time, all the while producing… Read more »

ONE’s hybrid battery pack combines the best aspects of two chemistries to deliver 600 miles of EV range

Q&A with ONE CTO Dr. Steven Kaye. There is a wide range of characteristics that describe the performance of any given battery chemistry: energy density, specific energy, specific power, discharge efficiency, self-discharge rate, cycle life, calendar life, and—not the least important—cost.  Some types of Li-ion chemistries are really good in a few characteristics but fall… Read more »

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