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A Study on the Electrical Characteristics of Battery Capacitor Applied to Photovoltaic Power System

태양광 시스템에 적용한 배터리 커패시터의 전기적 특성에 관한 연구

  • Received : 2017.08.05
  • Accepted : 2017.11.24
  • Published : 2017.12.01

Abstract

This paper describes the preparation and characteristics of a battery capacitor and module for solar power system. A cylindrical 30,000F battery capacitor ($60{\times}138mm$) was assembled by using the $LTO(Li_4Ti_5O_{12})$ electrode as an anode and $NMC(LiNiMnCoO_2)-LCO(LiCoO_2)$ as a cathode. The battery capacitor has reduced energy density and power density under high CC(constant current) and CP(constant power) conditions. Battery capacitor module (16V, 11Ah) was fabricated using an asymmetric hybrid capacitor with a capacitance of 30,000F. In order to determine the characteristics of the battery capacitor Module for solar power system, battery capacitor cells were connected in series with active balancing circuit. As a result of measuring the 100w LED lamp, it was discharged at the voltage of 15V~10V, and the compensation time at discharge was measured to be about 4979s. Experimental results show that it can be applied to applications related to solar power system by applying battery capacitor module.

Acknowledgement

Grant : 고전압 의사커패시터용 100nm급 망간계 세라믹 나노소재 개발

Supported by : 산업기술평가관리원

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