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[spike_1] 13/7/2013 13:31

Battery - now I know where your nick-name came from!

Best wishes - Mike

And before you ask 'spike_1' is a very specific RAF radio call code, which I won't explain in case it is still currant - which I am not.

[pcjoe] 13/7/2013 12:31

BB - My 2 favourite alternative energy stories of the past year

Nuclear Fusion

www.independent.co.uk/news/science/one-giant-leap-for-mankind-13bn-iter-project-makes-breakthrough-in-the-quest-for-nuclear-fusion-a-solution-to-climate-change-and-an-age-of-clean-cheap-energy-8590480.html

Sea Water

www.phys.org/news/2013-06-sea-ocean-hydrogen-fuel.html

Both a long term possible threat to the O&G industry ( And therefore IOF in its current form ) & ultimately both probably very good news for the planet - Dont know if I`ll be around to see much of it though!

[battery] 13/7/2013 11:39

Interesting vid PCJ - thanks for that.

The battery pack he was hacking is lithium ion - it doesn't contain any lithium metal as he claims. The reaction he got was from the hunting knife making a high resistance short of the internal electrodes. The heat from that caused the venting of the fumes and the fire starting of the brushwood.

Incidentally - one thing lithium ion batteries do contain is cobolt. Only is very small quantities as it is a very pricey substance. But it is also highly carcinogenic. So he shouldn't have been breathing in those fumes.

[battery] 13/7/2013 11:22

A typical battery development takes 10 years to go from working feasibility study prototype to commercial production.

The Redox system uses a fair amount of fluid and recharging can be done by recharging from mains or by simply replacing the electrolyte with a charged dose. They tend to be large systems though - aimed at high reliability, static standby power for things like telephone exchanges.

[madchick] 13/7/2013 10:24

Yes, it's all up in the air really - lots of potential simmering away, but much of it not yet commercialised so a bit academic. Even if we get taken over (but let's hope not), it is still relevant if it is due to come on the market in, say, three years' time, because this would be a further argument for negotiations as to future value to be priced in. If we remain independent, then obviously, it would be good to see an expanding need. But while everything is in the if and maybe stage, it's just a hope.

Any news on the helium front - it seems to have gone very quiet here on that perspective?

[engelo] 13/7/2013 10:04

Apols if posted before: hxxp://www.nature.com/ncomms/journal/v4/n5/abs/ncomms2907.html

"Here we report that aqueous lithium-iodine batteries based on the triiodide/iodide redox reaction show a high battery performance. By using iodine transformed to triiodide in an aqueous iodide, an aqueous cathode involving the triiodide/iodide redox reaction in a stable potential window avoiding water electrolysis is demonstrated for lithium-iodine batteries. The high solubility of triiodide/iodide redox couples results in an energy density of ~ 0.33 kWh ;kg−1, approximately twice that of lithium-ion batteries. The reversible redox reaction without the formation of resistive solid products promotes rechargeability, demonstrating 100 cycles with negligible capacity fading. A low cost, non-flammable and heavy-metal-free aqueous cathode can contribute to the feasibility of scale-up of lithium-iodine batteries for practical energy storage."

[engelo] 13/7/2013 09:44

SG: from your link: the 787's lithium ion batteries

"are operational when the plane is on the ground and its engines are not turned on, and are used to power the aircraft's brakes and lights.

The new versions of the batteries, which run at a much cooler temperature, are now enclosed in stainless steel boxes."

Latest incident: damage appears to be remote from batteries so could be eg a wiring fault.

www.npr.org/templates/story/story.php?storyId=201502274

However all this is academic really, except that it will spur the search for alternatives

More important to us is how long it will take the new iodine batteries, which look superior to lithium ion, to reach commercial production.

[meadow2] 13/7/2013 09:16

Obviously, not the positive terminal!

[madchick] 13/7/2013 08:38

Oh! That explains why I was stuck on the plane sitting in the airport for two hours yesterday from 5-7pm! We were told that there'd been an emergency landing and so only one terminal was working.

[superg1] 13/7/2013 08:31

Following on re the Lithium ion batteries. I wonder if this dreamliner is the latest victim of them.

From yesterday-:

[bmwlya] 13/7/2013 07:46

Development of promising battery systems is being intensified to fulfil the needs of long-driving-ranged electric vehicles. The successful candidates for new generation batteries should have higher energy densities than those of currently used batteries and reasonable rechargeability. Here we report that aqueous lithium-iodine batteries based on the triiodide/iodide redox reaction show a high battery performance. By using iodine transformed to triiodide in an aqueous iodide, an aqueous cathode involving the triiodide/iodide redox reaction in a stable potential window avoiding water electrolysis is demonstrated for lithium-iodine batteries. The high solubility of triiodide/iodide redox couples results in an energy density of ~ 0.33?kWh?kg?1, approximately twice that of lithium-ion batteries. The reversible redox reaction without the formation of resistive solid products promotes rechargeability, demonstrating 100 cycles with negligible capacity fading. A low cost, non-flammable and heavy-metal-free aqueous cathode can contribute to the feasibility of scale-up of lithium-iodine batteries for practical energy storage.

[festario] 13/7/2013 00:13

Diggulden, at post 5069.
Thats the funniest post I have ever seen on ADFFN.
In fact, I laughed out loud at work when I read it.

[hitsha3] 12/7/2013 16:37

Finished above £2, see what happens on Monday.

[bobsworth] 12/7/2013 16:05

Many thanks malachey

[nevmyers] 12/7/2013 15:46

Was about this time yesterday it fell back from 2 pound to the opening price, will it go again, it is Friday lol !!!

[warmsun] 12/7/2013 15:42

The 25k gone in one chunk!
A 50k buy at 201 too!

[warmsun] 12/7/2013 15:32

dig, :)
Don't forget, the flashing lights on L2 are also fun to watch :)

[che7win] 12/7/2013 15:23

The assault on 200p continues, it's a war if attrition, we're doing well :-)

[diggulden] 12/7/2013 15:21

Retiree will explain it much better than I can! I just like the different colours ;)

[bobsworth] 12/7/2013 15:09

Dear diggulden
Sorry to ask but could you give me a brief explanation on what L2 is showing us and how it helps one as an investor.