Welcome to MotoHouston.com! You are currently viewing our forums as a guest which gives you limited access to the community. By joining our free community you will have access to great discounts from our sponsors, the ability to post topics, communicate privately with other members, respond to polls, upload content, free email, classifieds, and access many other special features. Registration is fast, simple and absolutely free, join our community!
If you have any problems with the registration process or your account login, please contact us.
|FREE MH Decals by MAIL!|
Share This Thread:
|Subscribe to this Thread||Thread Tools|
|11-03-2015, 10:40 AM||#1|
Join Date: Nov 2008
Feedback Rating: (0)
New battery breakthrough could kill the petrol engine
But as ever its still a decade away from production
The battery powered Victory Empulse TT
SCIENTISTS at Cambridge University have released a paper detailing of a new generation of lithium-air battery that might finally fulfil the electric vehicle dream of being able to match petrol-powered machines in terms of performance, weight and range.
Call us cynical but it seems that we’ve been being told for at least 20 years that we’re on the verge of a battery technology breakthrough that will transform the technology and finally make it a viable rival to the internal combustion engine. Usually, these promises are the result of theories or lab tests with the inevitable proviso that the consumer versions of the technology will still be ‘a decade away.’
So it’s no surprise that the new Cambridge technology is… a decade away from the consumer market.
Cynicism put to one side, the actual technology of the latest research is interesting. Lithium-air batteries – which create voltage by reacting oxygen from the air with positively-charged lithium ions, forming lithium peroxide and generating electricity in the process – are proven to have impressive outputs. There’s talk that the new one might be 10 times more power-dense than current lithium-ion batteries. But lithium-air cells are notoriously hard to make work, and those that do have proved to be far too unstable for real-world use.
The new Cambridge research solves the stability problems by using a ‘fluffy’ carbon electrode made from graphene. Whatever that means.
But regardless of how it’s done, the result is a battery that has an energy density that’s similar to that of petrol; in other words, a battery the size and weight of your bike’s petrol tank would be able to give it the same performance and range. That’s a Holy Grail in terms of battery performance, and means that the usual provisos (short range, high weight and low performance compared to petrol vehicles) accompanying electric vehicles would no longer need apply.
Unfortunately, while the results are promising, the researchers developing the battery say that a practical version is still a decade away, not least because it only works at certain rates of charge and discharge and at the moment requires pure oxygen rather than simply air to operate.
'What we’ve achieved is a significant advance for this technology and suggests whole new areas for research – we haven’t solved all the problems inherent to this chemistry, but our results do show routes forward towards a practical device,' said Professor Clare Grey of Cambridge’s Department of Chemistry, the paper’s senior author.
Dr Tao Liu, also from the Department of Chemistry, and the paper’s first author, said: 'There’s still a lot of work to do, but what we’ve seen here suggests that there are ways to solve these problems – maybe we’ve just got to look at things a little differently.'
Piaggio and KTM developing electric commuter
New battery technology heralds breakthrough for electric vehicles
Polaris buys electric motorcycle firm Brammo
Up to £1,500 off electric bikes
Lunchtime debate: Why electric bike makers are mostly doing it wrong
|Thread||Thread Starter||Forum||Replies||Last Post|
|*Saturday Jan 25th Meet at The Petrol Station*||Blanco||Events, Meets and Rides||42||01-25-2014 08:14 PM|
|Tonight Petrol Station**Come||Blanco||Events, Meets and Rides||1||10-23-2013 07:03 PM|
|**Tonight** Petrol Station Meet||Blanco||Events, Meets and Rides||0||10-01-2013 05:33 PM|