Breaking News
Comments
Oldest First | Newest First | Threaded View
Page 1 / 5   >   >>
junko.yoshida
User Rank
Author
Are auto companies seeing limitations in EVs?
junko.yoshida   7/2/2013 4:43:12 PM
NO RATINGS
I actually find it fascinating that suddenly in 2013, the automotive industry is reviving their energy around fuel cell cars. 

Remember more than a decade ago, the idea of hydrogen cars was supposed to be the wave of the future?

Does this suggest in any way that auto companies are seeing a limited growth on EVs? Hence, also betting on fuel cells?

Seriously, if a car company knows the answer, isn't it much more efficient to pool all of their R&D resources on one thing?

 

krisi
User Rank
Author
Re: Are auto companies seeing limitations in EVs?
krisi   7/2/2013 6:45:25 PM
NO RATINGS
Hi Junko, I don't think you want to put all your R&D in one direction if you are a big car company. Neither EV or hydrogen cell cars will surive without goverment incentives. And who knows what the government will do? Last time they pull out all incentives for solar power killing quickly growing industry in the process. The same can happen with EV or hydrogen cells. If I were them I would place small bets here & there and try to see what the consumer driven givernment incentives would do. People love green technologies as long as they don't have to pay a cent more for them ;-)...Kris

chanj0
User Rank
Author
Fuel Cell As Replacement to Lithium Battery
chanj0   7/2/2013 7:40:46 PM
There is no doubt one of the biggest challenges to EV is recharge rate. There is all kind of solution coming up lately. Fast charging and Battery swap. Yet, there doesn't seem to be anything as fast and as convenience as pumping gasoline. What if a fuel that can be injected into a battery get a recharge? Neglecting production and transporation of hydrogen fuel,  I believe fuel cell might actually be able to contribute to our energy future, especially as an alternative fuel to vehicle.

chanj0
User Rank
Author
Re: Are auto companies seeing limitations in EVs?
chanj0   7/2/2013 7:48:28 PM
NO RATINGS
Addition: Honda has been putting a huge bet on fuel cell vehicle, believing hybrid does not have the long term future. They pulled the plug as soon as Obama cut the funding in 2009. I am glad to hear Honda is coming to the game again.

krisi
User Rank
Author
Re: Fuel Cell As Replacement to Lithium Battery
krisi   7/2/2013 8:01:18 PM
NO RATINGS
The number 1 battery swap company just went belly up...so much for the good idea in theory but poor in practice that neglects reality of consumer behaviour...who would want to swap EV batteries instead of just umping gas???

Bert22306
User Rank
Author
Fuel cell plus a reformer?
Bert22306   7/2/2013 8:23:52 PM
NO RATINGS
I did read about a scheme in which you pump fresh electrolyte into the battery, to achieve a full charge in the time it takes to refuel standard cars. Not sure where that went.

Failing that, I've always thought that fuel cell cars have a brighter future. But hydrogen in a tank does not. It's very volatile, has the teensiest atoms, and these tanks therefore deplete themselves as fast as, or maybe faster than, batteries die when left without recharging.

Besides, how disingenuous is it to say that fuel cell vehicles are pollution-free? Surely, that depends entirely on how you produce the H2 they need. From coal-fired electric plants, they pollute at least as much as ICE cars.

I put my hopes on separating the H2 from a fuel, stored in the car, in a regular fuel tank. The entire process should easily be twice as efficient as internal combustion engines are, and more efficient than that at low power levels, such as city driving. So that's how you cut the CO2 emissions. I mean, the typical 30 percent figure we see for ICE applies only at the best operating modes. In typical driving, try something in the high teens and twenty percent ranges. A fuel cell should be on the order of over 50 percent. The reformer should be way higher than that.

junko.yoshida
User Rank
Author
Re: Are auto companies seeing limitations in EVs?
junko.yoshida   7/2/2013 10:14:26 PM
NO RATINGS
I hear you, Kris. I understand. But here's the thing. Despite some progress made in hydrogen cars earlier, why does it feel like that the technology development in hydrogen cars had been dormant or slowed down in the past decade,,,  Is that because the auto industry shifted their interest more to EVs?

krisi
User Rank
Author
Re: Fuel cell plus a reformer?
krisi   7/3/2013 12:16:54 AM
NO RATINGS
Good luck pumping your elecrtolyte into your battery...let me mention one word, liabilities!

jkocurek
User Rank
Author
Re: Are auto companies seeing limitations in EVs?
jkocurek   7/3/2013 8:16:45 AM
I think the reason why development has slowed for fuel cell autos is the hydrogen storage problem. An aqueous solution of sodium borohydride can have a similar energy density as gasoline. It is reasonable non-toxic, non-explosive, it doesn't burn and is stable. A little catalyst and it releases its hydrogen and leaves behind sodium borate, i.e. borax. The problem is production. Ideally you should be able to react hydrogen with the sodium borate to reform the sodium borohydride. But so far it cannot be done economically.


Pretty much all of the other storage solutions are technically challenging, expensive, risky or some combination of the three. I think the auto industry would prefer to wait until the sodium borate -> sodium borohydride problem is solved.

junko.yoshida
User Rank
Author
Re: Are auto companies seeing limitations in EVs?
junko.yoshida   7/3/2013 8:36:23 AM
NO RATINGS
As you pointed out, storage solutions appear to be the issue --- but that's the case with not only hydrogen cars and EVs. 

The quesiton is who gets to solve this faster...

Page 1 / 5   >   >>


Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Radio
LATEST ARCHIVED BROADCAST

What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.

Brought to you by:

Like Us on Facebook
Special Video Section
The LTC2380-24 is a versatile 24-bit SAR ADC that combines ...
In this short video we show an LED light demo to ...
02:46
Wireless Power enables applications where it is difficult ...
07:41
LEDs are being used in current luxury model automotive ...
With design sizes expected to increase by 5X through 2020, ...
01:48
Linear Technology’s LT8330 and LT8331, two Low Quiescent ...
The quality and reliability of Mill-Max's two-piece ...
LED lighting is an important feature in today’s and future ...
05:27
The LT8602 has two high voltage buck regulators with an ...
05:18
Silego Technology’s highly versatile Mixed-signal GreenPAK ...
The quality and reliability of Mill-Max's two-piece ...
01:34
Why the multicopter? It has every thing in it. 58 of ...
Security is important in all parts of the IoT chain, ...
Infineon explains their philosophy and why the multicopter ...
The LTC4282 Hot SwapTM controller allows a board to be ...
This video highlights the Zynq® UltraScale+™ MPSoC, and sho...
Homeowners may soon be able to store the energy generated ...
The LTC®6363 is a low power, low noise, fully differential ...
See the Virtex® UltraScale+™ FPGA with 32.75G backplane ...
Vincent Ching, applications engineer at Avago Technologies, ...