Embedded Systems Conference
Breaking News
Newest First | Oldest First | Threaded View
<<   <   Page 3 / 3
User Rank
Really a solution?
JanineLove   9/30/2013 1:47:30 PM
I may be off topic a bit here, but the bit in the article about the national media got me thinking about the EV radio commercials I've been hearing. What no one seems to be addressing is where the electricity will come from? Aren't we just trading one problem for another here? Feel free to set me straight...

Duane Benson
User Rank
Re: Nice goal, but...
Duane Benson   9/30/2013 12:54:42 PM
You've got a good point. I'd agree that the biggest challenge is charging time, but range certainly ranks up there. Fast charging would offset some of the problems with limited range, but at some point, range becomes too short to be practical. That's where thos 4-5X batteries will come in handy - if we can shove that many electrons around fast enough.

User Rank
Re: Nice goal, but...
AZskibum   9/30/2013 11:41:12 AM
Some of the promising new anode materials like silicon nanowires could make this an achievable goal by providing 4-5x the charge storage in the same battery volume.

The biggest challenge is not range, but charging time. Those future batteries with 4-5x the capacity will also require 4-5x the charging current to charge in the same amount of time as today's batteries -- and that charging time is already too long for EV purposes.

Duane Benson
User Rank
Nice goal, but...
Duane Benson   9/30/2013 11:29:31 AM
EV batteries won't have to exactly reach the range and energy density of a tank of gas, but they'll have to meet a few pretty hard requirements to be successful.

A good analogy might be the smart phone. Before smart phones, we might expect a week out of a single phone charge. With a smart phone, we have to live with charging every day. However, the increase in functionality made the trade off worthwhile (mostly).

An electric car will need to do a similar thing. It has to have a big enough benefit - something that liquid fuel cars don't have - to make the trade offs worthwhile. I don't see that on the horizon any time soon.

a 200 mile range is good for a commuter car. That's enough range to be able to make a daily 50 mile (total) commute without fear of running our of battery power. It's not realistic, however, in my opinion, for anything other than around town use.

<<   <   Page 3 / 3

Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

March 28 is Arduino Day -- Break Out the Party Hats!
Max Maxfield
Well, here's a bit of a conundrum. I just received an email from my chum David Ashton who hails from the "Unfinished Continent" Down Under. David's message was short and sweet; all he said ...

Bernard Cole

A Book For All Reasons
Bernard Cole
1 Comment
Robert Oshana's recent book "Software Engineering for Embedded Systems (Newnes/Elsevier)," written and edited with Mark Kraeling, is a 'book for all reasons.' At almost 1,200 pages, it ...

Martin Rowe

Leonard Nimoy, We'll Miss you
Martin Rowe
Like many of you, I was saddened to hear the news of Leonard Nimoy's death. His Star Trek character Mr. Spock was an inspiration to many of us who entered technical fields.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
EE Times Senior Technical Editor Martin Rowe will interview EMC engineer Kenneth Wyatt.
Flash Poll