AAWSAP DIRD, Ultracapacitors as Energy and Power Storage Devices, November 2010

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Table 2: Manufacturers of Ultracapacitors¹³

Device | V rated | C (F) | R (mOhm) | RC (sec) | Wh/kg (1) | W/kg (95%) (2) | W/kg Match. Imped. | Wgt. (kg) | Vol. lit.
Maxwell* | 2.7 | 2,885 | .375 | 1.08 | 4.2 | 994 | 8,836 | .55 | .414
Maxwell | 2.7 | 605 | .90 | .55 | 2.35 | 1,139 | 9,597 | .20 | .211
Apowercap** | 2.7 | 55 | 4 | .22 | 5.5 | 5,695 | 50,625 | .009 | ---
Apowercap** | 2.7 | 450 | 1.4 | .58 | 5.89 | 2,574 | 24,595 | .057 | .045
Ness | 2.7 | 1,800 | .55 | 1.00 | 3.6 | 975 | 8,674 | .38 | .277
Ness | 2.7 | 3,640 | .30 | 1.10 | 4.2 | 928 | 8,010 | .65 | .514
Ness (cyl.) | 2.7 | 3,160 | .4 | 1.26 | 4.4 | 982 | 8,728 | .522 | .38
Asahi Glass (pc) | 2.7 | 1,375 | 2.5 | 3.4 | 4.9 | 390 | 3,471 | .210 (est.) | .151
Panasonic (pc) | 2.5 | 1,200 | 1.0 | 1.2 | 2.3 | 514 | 4,596 | .34 | .245
EPCOS | 2.7 | 3,400 | .45 | 1.5 | 4.3 | 760 | 6,750 | .60 | .48
LS Cable | 2.8 | 3,200 | .25 | .80 | 3.7 | 1,400 | 12,400 | .63 | .47
BatScap | 2.7 | 2,680 | .20 | .54 | 4.2 | 2,050 | 18,225 | .50 | .572
Power Sys. (AC, pc) ** | 2.7 | 1,350 | 1.5 | 2.0 | 4.9 | 650 | 5,785 | .21 | .151
Power Sys. (GC, pc) ** | 3.3 | 1,800 | 3.0 | 5.4 | 8.0 | 486 | 4,320 | .21 | .15
Power Sys. (GC, pc) ** | 3.3 | 1,500 | 1.7 | 2.5 | 6.0 | 776 | 6,903 | .23 | .15
Fuji Heavy Industry- hybrid (AC/GC) ** | 3.8 | 1,800 | 1.5 | 2.6 | 9.2 | 1,025 | 10,375 | .232 | .143
JSR Micro (AC/GC)** | 3.8 | 1,000 | 4 | 4 | 11.2 | 900 | 7,987 | .113 | .073
JSR Micro (AC/GC)** | 3.8 | 2,000 | 1.9 | 3.8 | 12.1 | 1,038 | 9,223 | .206 | .132

(1) Energy density at 400 W/kg constant power, Vrated - 1/2 Vrated

(2) Power based on $P=9/16*(1-EF)*V^2/R$, $EF=$efficiency of discharge

* Except where noted, all the devices use acetonitrile as the electrolyte (pc = propylene carbonate)

AC = Activated Carbon; GC = Graphitic Carbon

** Laminated pouches; all other devices are packaged in metal containers

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