Supercapacitors For Long Life Energy Storage Applications


The newly launched supercapacitor from Eaton is designed to lend long battery life in applications such as engine start-up, energy capture and re-use, peak power shaving and pulse power. The supercapacitors are gaining design momentum in transportation, heavy vehicles, uninterrupted power supply (UPS), grid storage, engine starting, lighting applications and other industrial applications for their high energy density, high reliability and a longer life.

A supercapacitor (SC), formerly known as electric double-layer capacitor (EDLC) is a high-capacity electrochemical capacitor with capacitance values up to 10,000 farads at 1.2 volt that bridge the gap between electrolytic capacitors and rechargeable batteries. They typically store 10 to 100 times more energy per unit volume or mass than electrolytic capacitors. They can accept and deliver charge much faster than batteries, and tolerate more charge and discharge cycles than rechargeable batteries. They are however 10 times larger than conventional batteries for a given charge.

According to the press release, “Eaton XL60 series has a high capacitance of 3000 farads (F). The extended operating temperature range varies from -40°C to 85°C which meets industry safety requirements for systems performing under extreme climatic conditions. Additionally, operating life up to 20 years enhances system reliability. Offered with maximum operating voltage of 2.7 volts (V), Eaton’s XL60 series utilises electrochemical double-layer capacitor construction combined with high performance materials. This combination of advanced technologies enables the XL60 series to cover wide variety of high-density power applications. XL60 series super capacitors offer 3.0 watt-hours of total stored energy life performance is over 1500 hours at 2.7V/65 C, 10 years at 2.7V/25 C or over 1 million load cycles at 25 C.”

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The samples of supe rcapacitors can be purchased from Mouser or Digikey, 100 piece pricing starting at US$ 59.80, states the company release.

Features and benefits of supercapacitors as listed below:

  • Long life energy storage, upto 20 years
  • Ultra low ESR for very high power density
  • Wide operating temperature range
  • Maintenance free
  • Cost effective backup power and large energy recapture
  • Low operating costs
  • High efficiency (>98 per cent) under broad environmental conditions
  • High reliability, green solution


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