SuperCap is here (in france)

[silicium]

Product Bolloré Group:

Individual 2600 F cell:

Rated Capacitance (25°C, 100A) 2600 F
Rated Voltage 2.7 V
Series Resistance DC (25°C, 100A) 0.35 mOhm
Series Resistance AC (25°C, 100 A) 0.2 mOhm
Maximum peak current 600 A
Weight 500 g
Specific Energy at 2,7 V, 25°C 5.3 Wh/kg
Specific Power - matched load at 2,7V, 25°C 18 KW/kg
Time constant RSDCC (25°C, 100A) 0.9 s
Operating Temperature -30 to +60 °C
Storage Temperature -30 to +70 °C

and Lithium Metal Polymer battery:

Electrical data:

Energy: 2,8 kWh
Voltage rating: 31 V
Voltage range: 24 V - 40 V
Capacity at C/3: 90 Ah
Peak power (30 sec.)
at 80 % de PdD: 8 kW
Specific and volumic 110 Wh/kg
energy density 110 Wh/l


Physical data:

Volume: 25 litres
Weight: 25 kg
Communication bus: CAN


Thermal data:

Internal temperature: 90°C
Operating temperature: -20°C à + 60 °C

most infos here:

http://www.batscap.com/en/default.html

 

[Ypedal]

5.3 wh per kg !!... uhm... ouf.

 

[silicium]

5,3 Wh/kg but > 1 000 000 cycles... it's perfect for stop and go !

 

[Link]

Maximum peak current 600 A

Specific Power - matched load at 2,7V, 25°C 18 KW/kg

That all ?

What's an aluminum electrolytic's power density, I wonder?

Can't match this ones energy density, though.

 

[curious]

Capacitor energy storage: E = C * V^2 / 2 in joules, E = C * V^2 / (2 * 3600) in watt-hours.

 

[Beagle123]

Why aren't we driving electric cars?

 

[Link]

Capacitor energy storage: E = C * V^2 / 2 in joules, E = C * V^2 / (2 * 3600) in watt-hours.

I know that one already. I meant the amount of power it can produce (in general) for a given weight/volume.

Why aren't we driving electric cars?

...

That was random.

 

[Microbatman]

Here are some Super Caps in here in the USA

Compare power density

http://www.maxwell.com/ultracapacitors/products/medium-cell/bcap0120.asp

I wonder how much these things cost?

Would love to integrate these into a LiFePO4 battery and crank that throttle.

 

[Johnbear]

Cool Sam, could these work on an e-bike?

 

[Johnbear]

500,000 cycles would be nice!

 

[Link]

They'd work if it wasn't for the fact that they have like 15% the energy density of lead.

But, yes, the cycle life is nice.

 

[silicium]

Yesa 3300F: 3mΩ
Batscap 2600F: 0.35mΩ

for one cycle charge or discharge at 100A:

heat power:
Yesa: 30W
Batscap: 3.5W



Batscap:
Specific Energy at 2,7 V, 25°C 5.3 Wh/kg
Specific Power - matched load at 2,7V, 25°C 18 KW/kg
Time constant RSDCC (25°C, 100A) 0.9 s

Yesa?

:wink:

 

[Doctorbass]

If you want to do wheely or burn tire, that could be usefull and funny, but 3kg of battery to run eack km seems problematic...

But 3kg would power a burst of 54kW to a motor :lol:

Large EMP, Rail Gun and other electromagnetic rocket scientist gadget would love being supplyed by those

http://www.powerlabs.org/

Doc

 

[Link]

I'm pretty sure they wouldn't be good for rail guns/EMP bombs. Needs even more power than these can provide.

Small railguns will be pulling upwards of 50,000 amps, and the bigass 64MJ military grade one will pull 6,000,000shock.

 

[Doctorbass]

but maybe for a large medium power pulse :lol: .. I know that EMP require few nanosec pulse tuned using a coil and big SCR delay controlled that increase power many times.

I just wonder if these supercaps have good low ESR?

Doc

 

[Link]

O.35mOhms, so pretty good for a supercap. If they really are 0.35mOhms remains to be seen, though.

 

[eP]

Product Bolloré Group:

Individual 2600 F cell:

Rated Capacitance (25°C, 100A) 2600 F
Rated Voltage 2.7 V
Series Resistance DC (25°C, 100A) 0.35 mOhm
Series Resistance AC (25°C, 100 A) 0.2 mOhm
Maximum peak current 600 A
Weight 500 g
Specific Energy at 2,7 V, 25°C 5.3 Wh/kg
Specific Power - matched load at 2,7V, 25°C 18 KW/kg

18000 W/kg is far away from 600A max @2.7V/0.5kg
First of all we need to know Series resistance and Rated Capacitance @ 600A load.

 

[Link]

Who cares what the things weigh? I want volumetric energy density.

Now who knows what?