Title :
Development of vanadium redox flow battery for photovoltaic generation system
Author :
Shibata, Akira ; Kanji, S. ; Nakajima, Masato
Author_Institution :
Mitsubishi Chem. Corp., Japan
Abstract :
Photovoltaic power generation systems (PV) require a battery for night and rainy day operation. A redox flow battery has advantages over Pb-acid designs for this application with respect to the capability of deep discharge and needlessness of equalized charge. The authors have developed a high performance vanadium redox flow battery for this purpose and an inexpensive production technology for its electrolyte, which forms the majority of the battery cost, by using chemical reduction from boiler plant by-products. A 2 kW (10 kWh) battery, the minimum unit for practical battery size (50 kW×50 h), achieved 1.2 kW/cm2-electrode area at the 100 mA/cm2 current density
Keywords :
battery storage plants; electrochemical electrodes; electrochemistry; electrolytes; photovoltaic power systems; secondary cells; vanadium; 10 kWh; 2 kW; 50 h; 50 kW; PV power systems; V; boiler plant by-products; chemical reduction; current density; deep discharge capability; electrodes; electrolyte production technology; practical battery size; redox flow battery; secondary batteries; Anodes; Batteries; Chemical technology; Commercialization; Current density; Electrodes; Photovoltaic systems; Production; Solar power generation; Testing;
Conference_Titel :
Photovoltaic Energy Conversion, 1994., Conference Record of the Twenty Fourth. IEEE Photovoltaic Specialists Conference - 1994, 1994 IEEE First World Conference on
Conference_Location :
Waikoloa, HI
Print_ISBN :
0-7803-1460-3
DOI :
10.1109/WCPEC.1994.520117
