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About VINATech

Vina R&D

Solar Energy

Project name : High-capacity hybrid capacitor for solar mirror tracking
Participating organizations : VINATech, Korea Institute of Ceramic Engineering and Technology
Project period : May 1, 2010 ~ April 30, 2015 [60 months]
Project budget : 5.6 billion KRW (including 2.53 billion KRW in government contributions)

The photovoltaic power generation station controls parabolic mirrors to track the course of the sun to increase operation efficiency. For this purpose, power is transmitted over the cable, or batteries or super capacitors are used. The method of cable power transmission proved a long life cycle but requires substantial initial investment and complicated construction. The battery method doesn’t require much initial cost but the life cycle is short (less than 2 years), which inevitably leads to frequent replacement and faces strict environmental regulations. In addition, hybrid super capacitors can be installed and maintained for a moderate price. However, with the unit price being more expensive than the battery, this is a shortcoming.
The development goals of this project are to develop a hybrid capacitor that combines the strengths of EDLC (Electronic Double Layer Capacitor), which has a semi-permanent life cycle and high power, and LIB (Lithium Ion Battery) that has high energy density and high voltage; and to enter the mirror tracking market of photovoltaic power generators.