Supercapacitors, also known as ultracapacitors or supercaps, are power devices that can provide high power delivery over short periods. They have higher specific power than batteries but lower specific energy. Key applications for supercapacitors include covering peaks in power demand, load leveling for batteries, and kinetic energy recovery. Research is ongoing to improve supercapacitor technology, such as increasing voltage limits from 2.7V to 3.5V per cell, which can boost energy and power by around 70% without changes to materials or design. Independent testing has shown advantages of Yunasko supercapacitor technology over competitors in areas like specific energy, power, and temperature performance.

1. On the perspectives of supercapacitor
technology

2. On the perspectives of supercapacitor technology
2

3. 3
On the perspectives of supercapacitor technology

4. Batteries SC Flywheels
Specific energy stored, W.h/kg 30… 150 3… 6 4… 9
Specific power (@ 95% eff.), kW/kg 0.1… 1 1… 10* 2… 4
Supercapacitors are NOT energy devices, they are POWER devices!
Key SC applications are related with covering the peaks of power, load
leveling the batteries, kinetic energy recovery, etc.
4
On the perspectives of supercapacitor technology
* YUNASKO value only

5. 5
On the perspectives of supercapacitor technology

6. Rin
= ʃI2Rindt
~ U2 / Rin
On the perspectives of supercapacitor technology
Eff =
RLoad
RLoad + Rin
6

7. Y. Maletin et al. Carbon Based Electrochemical Double Layer Capacitors
of Low Internal Resistance. Energy&Environment Research, 2013, vol
3, # 2, pp.156-165.
http://www.ccsenet.org/journal/index.php/eer/issue/current
On the perspectives of supercapacitor technology
7

8. Yunasko SC cells and combined modules
(Li-ion battery and SC stack in parallel)
Module: 14 V
Max.current: 1200 A
Mass: 2.8 kg
Single cells:
480 F
1200 F
1500 F
On the perspectives of supercapacitor technology
8

9. 48 V, 165 F:
DC resistance: <4 mΩ
Mass: 13 kg
equipped with a proprietary
voltage balancing system
and temperature sensor
On the perspectives of supercapacitor technology
9

10. 16 V, 200 F:
DC resistance: <1 mΩ
Mass: 2.5 kg
equipped with a proprietary
voltage balancing system
and temperature sensor
On the perspectives of supercapacitor technology
10

11. Continuous cycling the 16V module over 8 hours
basic city duty cycle
ΔT:
cells in the centre
cells at the edge
Time, s
V
A, charge
A, discharge
On the perspectives of supercapacitor technology
11

12. “During the recent ECCAP Symposium at AABC-2013 in Strasbourg
(June 24-26) a recognised specialist in the field of supercapacitor
research – Dr. John Miller from JME Inc. revealed testing results for
the six key ultracapacitor producers, including a market leader –
Maxwell Technologies. The results showed substantial advantage
of YUNASKO technology over the closest analogues.”
(http://us1.campaign-archive1.com/?u=84cc935cd75c22a368d1cd12e&id=31a3699821&e=193f657ac6)
On the perspectives of supercapacitor technology
12

13. On the perspectives of supercapacitor technology
NOTE: 2.7V  3.5V results in:
• E & P increase in ~70% per a single cell, or
• 14 cells in 48V module instead of 18
13

14. •
•
•
On the perspectives of supercapacitor technology
14

15. NOTE: test results for JM Energy
hybrid were also obtained at ITS
and added here for comparison
100 1000 10000
0
5
10
15
20
25
30
35
40
Yunasko hybrid 6000F
Yunasko AC/AC 1200F
JME AC/Graphite 1100F
Specificenergy,Wh/g
Specific power, W/kg
On the perspectives of supercapacitor technology
15

16. -40 -20 0 20 40 60
0
20
40
60
80
100
50 0
C25 0
C
Dischargecapacity,%
t, 0
C
1 C
20 C
50 C
-30 0
C
On the perspectives of supercapacitor technology
16

17. On the perspectives of supercapacitor technology
17

18. On the perspectives of supercapacitor technology
18

19. On the perspectives of supercapacitor technology
19

20. On the perspectives of supercapacitor technology
20

21. Capacitance,
F
Internal
resistance,
mΩ
Time
constant,
s
Spec.
energy
(CU2
/2),
W.h/kg
Spec.
power
(95% eff.),
kW/kg
Max.
spec.
power,
kW/kg
SC power cells (2.7V)
480a
0.20 0.10 4.9 10.2 91
1200a,b
0.10 0.12 5.3 8.9 79
1500b
0.09 0.14 6.1 9.1 81
Hybrid cells (2.8 V)
6000a
1.0 6.0 37 4.5 NA
16 V module (6 “power” cells of 1200F in series)
200c,d
0.6 0.12 2.8 4.8 43
48 V module (18 “energy” cells of 3000F in series)
165d
4.0 0.65 4.4 1.4 12
a) Also tested in ITS, UC Davis, CA; b) Also tested in JME, Cleveland, OH;
c) Also tested in Wayne State University, Detroit, MI;
d) Equipped with a proprietary voltage balancing system (patent pending).
On the perspectives of supercapacitor technology
21

22. 22
On the perspectives of supercapacitor technology

23. On the perspectives of supercapacitor technology
23