Electric Double Layer Capacitors (EDLC), Supercapacitors

Image Part Number Description / PDF Quantity Rfq
M1020-2R5305-R

M1020-2R5305-R

PowerStor (Eaton)

CAP 3F -20% +80% 2.5V T/H

0

TV1030-3R0106-R

TV1030-3R0106-R

PowerStor (Eaton)

CAP 10F -10% +30% 3V T/H

0

SCAP,PBLS-9.0/13.5

SCAP,PBLS-9.0/13.5

Tecate Group

CAP 9F -10% +20% 13.5V UCAP PACK

39

PAS1220LN2R7905

PAS1220LN2R7905

TAIYO YUDEN

CAP 9F 20% 2.7V T/H

85

SCMR14G334SRBA0

SCMR14G334SRBA0

Elco (AVX)

CAP 330MF -10% +30% 7.5V T/H

1213

PHV-5R4H305-R

PHV-5R4H305-R

PowerStor (Eaton)

CAP 3F -10% +30% 5.4V T/H

511

MAL222051024E3

MAL222051024E3

Vishay BC Components/Beyshlag/Draloric

100F/2,7V IN 20 X 40MM

100

DB-5R5D334T

DB-5R5D334T

Elna America

CAP 330MF -20% +80% 5.5V T/H

0

850617021001

850617021001

Würth Elektronik Midcom

CAP 5F -10% +30% 2.7V T/H

521

MAL222531016E3

MAL222531016E3

Vishay BC Components/Beyshlag/Draloric

CAP ALUM 15F 2.7V 1500H

0

KR-5R5C155-R

KR-5R5C155-R

PowerStor (Eaton)

CAP 1.5F -20% +80% 5.5V T/H

4367

DZ-2R5D665Z6T

DZ-2R5D665Z6T

Elna America

CAP 6.6F -20% +80% 2.5V T/H

0

TPLH-3R0/350SS35X61

TPLH-3R0/350SS35X61

Tecate Group

CAP 350F 3V THROUGH HOLE

187

SCMT32C755SRBA0

SCMT32C755SRBA0

Elco (AVX)

CAP 7.5F -10% +30% 5V T/H

481

HSL1016-3R8306-R

HSL1016-3R8306-R

PowerStor (Eaton)

CAP HYBRID 30F 20% 3.8V TH

285

SCAP,PBLL-11.0/5.4

SCAP,PBLL-11.0/5.4

Tecate Group

CAP 11F -10% +20% 5.4V UCAP PACK

27

EEC-S0HD334V

EEC-S0HD334V

Panasonic

CAP 330MF -20% +80% 5.5V T/H

0

EEC-HL0E405

EEC-HL0E405

Panasonic

CAP 4F 20% 2.7V T/H

326

HB1860-2R5117-R

HB1860-2R5117-R

PowerStor (Eaton)

CAP 110F -10% +30% 2.5V T/H

655

HB1840-2R5606-R

HB1840-2R5606-R

PowerStor (Eaton)

CAP 60F -10% +30% 2.5V T/H

1656

Electric Double Layer Capacitors (EDLC), Supercapacitors

1. Overview

Electric Double Layer Capacitors (EDLC), commonly referred to as supercapacitors, are electrochemical energy storage devices that bridge the gap between conventional capacitors and batteries. They store energy through electrostatic charge separation at the electrode-electrolyte interface, offering high power density, rapid charge/discharge cycles, and exceptional cycle life (up to 1 million cycles). Their importance in modern technology lies in enabling energy-efficient systems for applications requiring burst power, energy recovery, and backup power solutions.

2. Main Types and Functional Classification

Type Functional Features Application Examples
EDLC (Carbon-based) High power density, long cycle life, low energy density Regenerative braking systems, UPS
Pseudocapacitors Higher energy density via redox reactions, moderate cycle life Portable electronics, grid energy storage
Hybrid Supercapacitors Combines EDLC and battery materials for balanced energy/power density Electric vehicles, renewable energy systems

3. Structure and Composition

A typical supercapacitor consists of two activated carbon electrodes separated by a porous membrane, immersed in an electrolyte (aqueous, organic, or ionic liquid). The electrodes are coated on current collectors (usually aluminum foil), and the entire assembly is enclosed in a hermetically sealed metal or polymer casing. Advanced designs incorporate graphene or carbon nanotubes to enhance surface area and conductivity.

4. Key Technical Specifications

Parameter Description & Importance
Capacitance (F) Determines charge storage capacity (range: 1 F to 5000 F)
Rated Voltage (V) Limits operational voltage (2.5 V 3.0 V per cell)
Equivalent Series Resistance (ESR) Affects power delivery efficiency (low ESR enables high pulse currents)
Energy Density (Wh/kg) Typical range: 5 50 Wh/kg
Power Density (kW/kg) Typical range: 1 10 kW/kg
Cycle Life Exceeds 100,000 cycles with minimal degradation

5. Application Fields

  • Consumer Electronics: Smart meters, LED flashlights
  • Automotive: Start-stop systems, kinetic energy recovery systems (KERS)
  • Industrial: Robotics, backup power for PLCs
  • Renewable Energy: Solar/wind energy storage, grid frequency regulation
  • Transportation: Trams, buses, and hybrid vehicles

6. Leading Manufacturers and Representative Products

Manufacturer Product Series Key Specifications
Maxwell Technologies (Tesla) BoostCap BC Series 10 F 3400 F, 2.7 V, ESR < 0.5 m
Panasonic Gold Capacitor Series 5 F 1000 F, 3.0 V, 10-year lifespan
Skeleton Technologies SkelCap Series 1200 F 5000 F, 2.85 V, 40 kW/kg power density
Samsung SDI
Supercapacitor Modules 50 F 2000 F, automotive-grade durability

7. Selection Recommendations

Key considerations include:

  • Application Requirements: Prioritize power density for pulse applications or energy density for long-duration backup
  • Voltage Matching: Use cell-balancing circuits for multi-cell stacks
  • Operating Environment: Select electrolytes suitable for temperature extremes (e.g., ionic liquids for -40 C to 85 C)
  • Lifetime Cost: Evaluate cycle life versus initial cost (e.g., EDLCs outlast batteries in cycling applications)

 

Industry Trends and Future Outlook

Emerging trends include:

  • Development of graphene-based electrodes to double energy density
  • Integration with IoT devices for smart energy management
  • Growth in automotive applications driven by EV and 48V micro-hybrid systems
  • Adoption of aqueous electrolytes for safer, low-cost energy storage
  • Hybrid supercapacitor-battery systems for renewable energy grids

The global supercapacitor market is projected to grow at 20% CAGR (2023 2030), driven by demand in transportation and renewable energy sectors.

 

RFQ BOM Call Skype Email
Top