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A lot of people seem to be stuck in their boxes; I thought the boxes would be more transparent, given the Lexus hybrid and the RUF e-Porsche. At this point, EV's are an optimization problem that you get to play with the variables to pick the outcome: 1. Gas-Engine range - You need a hybrid. For best performance, that hybrid should consist of a small (50KW) engine, a set of high-current cells, and a large electric motor all arranged in a...

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Read the article here: It's the battery, stupid

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I didn't mention on my earlier post that the charge time CAN be less than 15 minutes, regardless of the pack size. Before you laugh at this notion, consider this: with a bank of batteries in a room (at a charging station), massive currents can be delivered to a vehicle over some fat cables. This would require a "stiff" grid connection to achieve the same results, i.e. less practical. When vehicle packs are considered end of...

Gentlemen, i am a power electronics design engineer who worked on EV's. Why all the hub-ub about the pure EV? there are enough hybrid cars on the road to end this string of "clever" remarks that the EV is doomed to failure. Who says we ever have to find the "prefect" battery? It may never happen and so what? The Honda and Toyota hybrids are fine already with enough range and enough cost savings on fuel.

I work for GM. Reading this blog and the comments reminded me of a discussion I had more than a decade ago with one of my former colleagues. Earlier that day we had been given a presentation by another colleague regarding the EV1 electric vehicle program. (This was about one year after that vehicle was made available for lease to the public in CA and AZ, and years before the program was terminated. The impression then was that the program...

I am an engineer and I drive a Prius with 150k miles on it. The battery has not been a problem in this type of use. I expect it to last to 300k. However, I have problems with all of the claims coming from all of the car companies about battery use. The all electric car would be the best thing to hit the car industry, but batteries will not work as the only power source. A battery will never be able to supply the kind of power needed for these...

It is about time that the matter of the exagerrated ranges of electric vehicles is being addressed. The true ranges are far less than stated. Battery service lives and replacement costs also need to be addressed. First-generation electric vehicles will be a disappointment to their owners and have poor resale values once the second generation hits the market. I am not looking forward to the day when our roads are blocked by stalled electric...