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Yurii Maletin took part in the IEEE International Electric Vehicle Conference 2014

Dr. Yurii Maletin, Chief Scientist of Yunasko took part in the IEEE International Electric Vehicle Conference 2014, Florence, Italy, December 17-19. The supercapacitor session was headed by Dr. A.F. Burke from the Institute of Transportation Studies, UC Davis, CA, USA (This email address is being protected from spambots. You need JavaScript enabled to view it.).

Dr. Burke presented, in particular, his comparative test results for carbon-carbon supercapacitor and hybrid LIC devices – see an excerpt from his presentation below. Once again, Dr. Burke’s comparative tests confirm the highest power capability and the largest energy density of Yunasko supercapacitor and hybrid devices, respectively.

Summary of ultracapacitor device characteristics

Device

V

rated

C

(F)

R

(mOhm)

(3)

RC

sec

Wh/kg

(1)

W/kg

(95%)

(2)

W/kg

Match.

Imped.

Wgt.

(kg)

Vol.

lit.

Maxwell

Technol.

2.7 605 0.90 0.55 2.35 1139 9597 0.20 0.211
Vinatech 2.7 336 3.5 1.2 4.5 1085 9656 0.054 0.057
Ioxus 2.7 2000 0.54 1.1 4.0 923 8210 0.37 0.346

Skeleton

Technol.

3.4 3200 0.475 1.52 9.0 1730 15400 0.40 0.284
Yunasko 2.75 1275 0.11 0.13 4.55 8791 78125 0.22 0.15
Yunasko* 2.7 5200 1.5 7.8 30 3395 30200 0.068 0.038
Nesscap 2.7 3160 0.4 1.3 4.4 982 8728 0.522 0.379
LS Cable 2.8 3200 0.25 0.80 3.7 1400 12400 0.63 0.47
BatScap 2.7 2680 0.20 0.54 4.2 2050 18225 0.50 0.572
JSR-Micro* 3.8 1100 1.15 1.21 10 2450 21880 0.144 0.077

(1) Energy density at 400 W/kg constant power, Vrated - 1/2 Vrated
(2) Power based on P=9/16*(1-EF)*V2/R, EF=efficiency of discharge
(3) Steady-state resistance including pore resistance
* Hybrid "Li-ion capacitors"