Yunasko supercapacitors –
the best choice to get both
high power and energy density
Yunasko supercapacitors – the best choice to get both high power
and energy density

2
Yunasko supercapacitors – the best choice to get both high power
and energy density

3
Yunasko supercapacitors – the best choice to get both high power
and energy density

Energy storage system classification
...
Yunasko supercapacitors – the best choice to get both high power
and energy density

EDLC vs. Hybrid capacitor (HC)

1. Ca...
Yunasko supercapacitors – the best choice to get both high power
and energy density

Rin
= ʃI2Rint
(low heat generation im...
Yunasko supercapacitors – the best choice to get both high power
and energy density

SC resistivity (in
total

.cm2)
~ 1.0...
Yunasko supercapacitors – the best choice to get both high power
and energy density

1.7

1.6

EDLC resistivity, R, Ohm.cm...
Yunasko supercapacitors – the best choice to get both high power
and energy density

NOTE: in bulk solution
Deff = 10.1 10...
Yunasko supercapacitors – the best choice to get both high power
and energy density

Nippon Chemi-Con2

1.1 s

Maxwell Tec...
Yunasko supercapacitors – the best choice to get both high power
and energy density

15 V, 200 F:

max working voltage 16....
Yunasko supercapacitors – the best choice to get both high power
and energy density

basic city duty cycle

ΔT:
cells in t...
Yunasko supercapacitors – the best choice to get both high power
and energy density

13
Yunasko supercapacitors – the best choice to get both high power
and energy density

14
Yunasko supercapacitors – the best choice to get both high power
and energy density

180

Charge/discharge 20A CC
Q/Q0
R/R...
Yunasko supercapacitors – the best choice to get both high power
and energy density

Device

C,
F

ESR,

RC,

Energy,

Pow...
Yunasko supercapacitors – the best choice to get both high power
and energy density

3.

YUNASKO hybrid devices based on m...
Yunasko supercapacitors – the best choice to get both high power
and energy density

Special thanks to my R&D and Design B...
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Yunasko sc berlin-2013

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Yunasko supercapacitors – the best choice to get both high power and energy density

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Yunasko sc berlin-2013

  1. 1. Yunasko supercapacitors – the best choice to get both high power and energy density
  2. 2. Yunasko supercapacitors – the best choice to get both high power and energy density 2
  3. 3. Yunasko supercapacitors – the best choice to get both high power and energy density 3
  4. 4. Yunasko supercapacitors – the best choice to get both high power and energy density Energy storage system classification EDLC Battery Internal Serial Hybrids Internal Parallel Hybrids AC BN AC AC 2-6 Wh/kg; 1-10 kW/kg BP 15-200 Wh/kg; 1-5 kW/kg BP 10-20 Wh/kg; ~2 kW/kg BN AC/LTO AC AC/LMO D.Cericola et al. J.Power Sources, 2011, v.196, p.10305-10313 D.Cericola, R. Kötz. Electrochim. Acta, 2012, v.72, p.1-17. 4
  5. 5. Yunasko supercapacitors – the best choice to get both high power and energy density EDLC vs. Hybrid capacitor (HC) 1. Capacitance 1 CT 1 CP 1 CN CT CP ( N ) 2 CT 2. Resistance REDLC < RHC 3. Voltage CP( N ) UEDLC £UHC W.G.Pell, B.E.Conway. J.Power Source, 2004, v.136, p.334-345 5
  6. 6. Yunasko supercapacitors – the best choice to get both high power and energy density Rin = ʃI2Rint (low heat generation implies simple design and safety) = RLoad/(RLoad + Rin) (high efficiency is important for KERS and many other applications) ~ 1/ Rin (high power density allows to meet customer requirements with less mass) (is important for grid frequency regulation) 6
  7. 7. Yunasko supercapacitors – the best choice to get both high power and energy density SC resistivity (in total .cm2) ~ 1.0 Al-C ~ 0.01 C ~ 0.07 Thus: El ~ 0.9 Though: El-in-bulk ~ 0.2 “pore resistance” ~ 0.7 10
  8. 8. Yunasko supercapacitors – the best choice to get both high power and energy density 1.7 1.6 EDLC resistivity, R, Ohm.cm2 EDLC resistivity, R, Ohm.cm2 1.7 1.5 1.4 1.3 1.2 1.1 1 1.5 1.3 1.1 0.9 0.7 0.5 2 7 12 Diffusion coefficient, D, 10-10 m2/s 17 1 1.2 1.4 1.6 1.8 2 2.2 Diffusion coefficient, D, 10-10 m2/s Diffusion coefficients of BF4- anions and EtMe3N+cations in NP carbons (pulsed field-gradient 19F NMR measurements, see: Y. Cohen, L. Avram, L. Frish; Angew. Chem. Int. Ed., 2005, 44, p.520 ) 8
  9. 9. Yunasko supercapacitors – the best choice to get both high power and energy density NOTE: in bulk solution Deff = 10.1 10-10 m2/s Diffusion coefficients of Fc+ cations in NP carbons (Rotating Disc Electrode measurements, see: A.J.Bard, L.R.Faulkner; Electrochemical Methods. Fundamentals and Applications (2nd ed.); Wiley, 2001, p.335 ) 9
  10. 10. Yunasko supercapacitors – the best choice to get both high power and energy density Nippon Chemi-Con2 1.1 s Maxwell Technologies 0.5 Ioxus ~ 0.7 s Nesscap 0.5 0.7 s BatScap 0.4 0.5 s Wima ~ 0.7 s Yunasko 0.15 0.7 s 0.20 s 1) source: JME and ITS test results, also Producer’s site; 2) non-acetonitrile based electrolyte 10
  11. 11. Yunasko supercapacitors – the best choice to get both high power and energy density 15 V, 200 F: max working voltage 16.2 V max surge voltage 18.0 V dc pulse resistance 0.5 mΩ mass 2.5 kg (equipped with voltage balancing system and temperature sensor) 11
  12. 12. Yunasko supercapacitors – the best choice to get both high power and energy density basic city duty cycle ΔT: cells in the centre cells at the edge Continuous cycling the module over 8 hours 12
  13. 13. Yunasko supercapacitors – the best choice to get both high power and energy density 13
  14. 14. Yunasko supercapacitors – the best choice to get both high power and energy density 14
  15. 15. Yunasko supercapacitors – the best choice to get both high power and energy density 180 Charge/discharge 20A CC Q/Q0 R/R0 160 Q/Q0 (R/R0), % 140 120 100 80 60 0 2000 4000 6000 8000 10000 Cycle number 15
  16. 16. Yunasko supercapacitors – the best choice to get both high power and energy density Device C, F ESR, RC, Energy, Power Match.Imped. Power, m sec Wh/kg (95% eff), kW/kg kW/kg Maxwell Tech a 605 .90 .55 2.4 1.1 9.6 Maxwell Tech c 1200 .29 .35 3.9 2.5 22.5 Ioxus a 2000 .54 1.1 4.0 0.9 8.2 Ioxus c 3000 .17 .51 4.5 2.4 21.5 NessCap a 3160 .4 1.3 4.4 1.0 8.7 BatScap a 2680 .2 .54 4.2 2.05 18.2 Yunasko a,b 1200 .11 .13 4.6 9.7 85.9 Yunasko a,b 1500 .10 .13 4.6 9.2 81.9 Yunasko c 1200 .08 .10 4.3 11.0 95.3 6000 1.0 6.0 36 4.5 ~40 2000 1.9 3.8 12 1.0 9.2 Yunasko-hybrid JSR Micro a a,c a) ITS test results; b) JME test results; c) YUNASKO test results for BCAP1200 P270 K2, RSC2R7308 LR, SP4 16
  17. 17. Yunasko supercapacitors – the best choice to get both high power and energy density 3. YUNASKO hybrid devices based on mechanical mixture of LIB and SC components provide the energy density of 36 W.h/kg accompanied by low internal resistance and good cycle life. 4. Optimal market niches for hybrid devices can be related with the tasks that require the operation at high power but at the same time specific energy of SC devices is not enough. 17
  18. 18. Yunasko supercapacitors – the best choice to get both high power and energy density Special thanks to my R&D and Design Bureau colleagues: Dr. Y.Maletin, Dr. S.Zelinskyi, Dr. D.Tretyakov, S.Chernukhin,S.Podmogilny, S.Tychina, O.Gozhenko, A.Maletin, D.Drobny, and A.Slezin Our Pilot Plant and Administrative Department: For the great support, diligence and dedication to work Many thanks to Dr. Andrew F. Burke (ITS) and Dr. John R. Miller (JME) for their measurements and stimulating discussions Financial support from FP7 Project # 286210 (Energy Caps) is very much acknowledged 18
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