Has anyone tried to use Li-S batteries for their multicopter or plane?
You need to be a member of diydrones to add comments!
This reply was deleted.
Has anyone tried to use Li-S batteries for their multicopter or plane?
You need to be a member of diydrones to add comments!
Replies
In my knowledge, Sion power not selling these cells to public till now.
They have bigger military market to catch up with.
There few other companies making lithium sulfur batteries, but all are in R&D phase and production is not yet started.
these batteries are expected to be available in mid 2014 to End 2014.
Few Companies are :
http://en.winston-battery.com/index.php/products/power-battery/cate...
http://www.oxisenergy.com/technology/product
but another company is selling lithium sulfur batteries BUT they are not rechargeable.
http://www.powerstream.com/LiPSO2.htm
Wait till end 2014....
Thanks Tipu. I may end up getting a large LiPo while I wait for Li-S. I left messages for Oxis and Sion, but no reply yet.
Please note that the lithium sulfur dioxide batteries being sold by companies like Saft are not the same as the ones being tested by Oxis and Sion. From what I've read, they are primary cells that are not re-chargeable (although they have a higher energy density than LiPo if you have the money to use disposable batteries).
-Joe
-Joe
So what about the C rating of these?
Here's some recent news on Li-S.
http://phys.org/tags/lithium-sulfur+batteries/
One interesting side benefit...if you spank your SION-powered EDF into the tarmac at 100kph, the sulphur should guarantee a pretty spectacular demise for it.
There was a flurry of worries a few years ago while I was a fire chief about molten sulfur batteries in vehicles. Happily that never happened. Could have gotten way too interesting in a hurry!
Looks good, however it also appears that the Li-S cell voltage is 2.1v judging by the amount of cells in series. Plus they are using 3-12 cell in parallel, that's increasing the chance of having a bad cell. One bad cell and its off to soldering or the trash.
I do hope they come out for the consumer, a 250 WH/KG battery is most welcome =D.
On a similar note, we are heavily focused on battery cap. But what about lightening motors, and increasing their efficiency?
@Lefebvre - I'd be surprised if they couldn't build an Li-S pack to supply 30C given the UAV market they're targeting.
@Allen - I'm sure most arducopter setups will run as long as the voltage from the battery pack is close to 11v. I'd love to know what the safe operating voltage range is for the 4-1 ESC and APM/Pixhawk. If there are lighter, more efficient motors to be had, please share the details!
@Hind - If these cells can keep my quad up for 25 minutes per cycle, that means one battery at 300 cycles = 125 hours of flight time. Good enough for me. :-)
-Joe
Their weight versus energy density looks good, but I notice they don't mention number of recharge cycles.
I also see they are talking about expensive applications such as military and UAV, wonder why not targeting consumer applications?
It's not like sulfur is an expensive ingredient.
Previous sulfur based cells have been very operating temperature dependent often requiring addition of heat.
I suspect there is more significant information in what they aren't saying than in what they are.
-
1
-
2
of 2 Next