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Overview of Supercapacitors

Overview of Supercapacitors

Supercapacitors, also referred to as ultracapacitors, are energy storage devices with power and energy densities between those of a traditional capacitor and battery. Batteries store energy chemically, whereas supercapacitors store them electrostatically. Supercapacitors use electrolytes and configure various-sized cells into modules to meet the power, energy, and voltage requirements for a wide range of applications. Supercapacitors store energy using either ion adsorption (e.g. found in electrochemical double layer capacitors) or using fast surface redox reactions (e.g. found in pseudo-capacitors). These supercapacitors can potentially provide on the order of one hundred times or greater the capacity compared to standard electrolytic capacitors. 

Advantages of Supercapacitors

Bioenno Power offers a complete line of supercapacitors.  The main advantages of Bioenno Power supercapacitors include: (1) tremendously enhanced Farad level capacity within a compact space and volume compared to standard electrolytic capacitors; (2) low internal resistance; (3) excellent deep cycle discharge performance; (4) cycle life that exceeds 100,000 times; and (5) environmental-friendliness.  Supercapacitors offer high energy and power densities, have excellent cycle life, and can also withstand harsh temperatures.

Applications for Supercapacitors

Supercapacitors have become increasingly attractive for a wide variety of applications including the following:

  • Automotive:  Hybrid Electric Vehicles (HEVs), Partial Hybrid Electric Vehicles (PHEVs), Electric Vehicles (EVs) 
  • Defense: Weapons, tactical vehicles, EM armor, military power
  • Commercial/Industrial:  UPS equipment, telecom equipment, automatic meter reading equipment, remote controllers
  • Consumer:  Electric tools, RC models/toys
  • Solar/Renewable:  Solar power systems, wind power generators

Various Supercapacitor Configurations Available

 

Bioenno Power offers various types of supercapacitors in many configurations including (a) coin cell type and (b) radial/cylindrical type.  For coin cell type capacitors, 5.5V units are available with Vertical, Horizontal, and Center terminals.  For radial/cylindrical type supercapacitors, 2.7V units are available with both leaded and snap-in terminals.  The capacitance values range from 0.10F to 400F. See the table below that shows each particular configuration based on model, voltage, capacity, dimensions, and weight.  

2.7V Radial Supercapacitors

Model

Voltage 

(V)

Capacity

(F)

           ESR (mohm)

Dimensions

 (mm)

P +/-0.5

(mm)

Weight

(g)

AC @1kHz

DC

SR2R7105Z-L

2.7

1.0

200

300

8.0 x 13

3.50

1.20

SR2R7205Z-L

2.7

2.0

150

230

8.0 x 20

3.50

1.70

SR2R7335Z-L

2.7

3.3

100

150

10 x 20

5.00

2.20

SR2R7475Z-L

2.7

4.7

75

100

13 x 21

5.00

3.20

SR2R7685Z-L

2.7

6.8

50

75

13 x 21

5.00

3.50

SR2R7106Z-L

2.7

10

35

50

13 x 27

5.00

5.00

SR2R7156Z-L

2.7

15

30

45

16 x 26

7.50

6.00

SR2R7206Z-L

2.7

20

30

45

16 x 26

7.50

8.00

SR2R7306Z-L

2.7

30

20

30

16 x 32

7.50

10.0

SR2R7406Z-L

2.7

40

20

30

18 x 41

7.50

12.0

SR2R7506Z-L

2.7

50

20

30

18 x 41

7.50

16.0

 

2.7V Snap-in Supercapacitors

Model

Voltage 

(V)

Capacity 

(F)

           ESR (mohm)

Dimensions

 (mm)

P +/-0.5

 (mm)

Weight 

(g)

AC @1kHz

DC

SR2R7606Z-S

2.7

60

25

40

22 x 45

10.0

20.0

SR2R7806Z-S

2.7

80

20

30

22 x 45

10.0

22.0

SR2R7906Z-S

2.7

90

18

27

22 x 45

10.0

27.0

SR2R7107Z-S

2.7

100

15

22

22 x 50

10.0

32.0

SR2R7127Z-S

2.7

120

15

22

25 x 50

10.0

36.0

SR2R7157Z-S

2.7

150

12

18

25 x 50

10.0

45.0

SR2R7207Z-S

2.7

200

10

15

25 x 60

10.0

50.0

SR2R7307Z-S

2.7

300

10

15

35 x 60

10.0

60.0

SR2R7367Z-S

2.7

360

8.0

12

35  x 60

10.0

65.0

SR2R7407Z-S

2.7

400

7.0

10

35 x 70

10.0

75.0

 

Continued Research and Development on Supercapacitors

Bioenno Power is currently developing a novel class of high-energy-density, high-power-density supercapacitors using nanostructured carbon and graphene materials. These materials provide high energy density, high power density, and extremely long service life. We are also conducting work on the development of hybrid energy storage systems that combine Li-ion batteries and supercapacitors.