An innovative current collection method for micro-tubular solid oxide fuel cells (SOFCs) is proposed in the present work. Pencil lead was used as support for the coiled current-collector during processing and as sacrificial inner core for the fabrication of microtubular SOFCs. A nickel wire was coiled around the pencil lead thus producing a compliant and homogeneously distributed current collector along the cell length and with two terminals available for the electrical connections. The cell consists of NiO/YSZ anode, YSZ electrolyte and LSM cathode, sequentially deposited by dip coating around the Ni current collector. I-V curves showed maximum power output of ∼190 mW/cm 2 at 800°C under wet H 2fuel flow in cells with ∼1.2 mm diameter and 30 mm length with an active cathode area of about 0.75 cm 2. ©The Electrochemical Society.
Production of compliant current collector-supported micro-tubular solid oxide fuel cells
Sglavo, Vincenzo Maria
2011-01-01
Abstract
An innovative current collection method for micro-tubular solid oxide fuel cells (SOFCs) is proposed in the present work. Pencil lead was used as support for the coiled current-collector during processing and as sacrificial inner core for the fabrication of microtubular SOFCs. A nickel wire was coiled around the pencil lead thus producing a compliant and homogeneously distributed current collector along the cell length and with two terminals available for the electrical connections. The cell consists of NiO/YSZ anode, YSZ electrolyte and LSM cathode, sequentially deposited by dip coating around the Ni current collector. I-V curves showed maximum power output of ∼190 mW/cm 2 at 800°C under wet H 2fuel flow in cells with ∼1.2 mm diameter and 30 mm length with an active cathode area of about 0.75 cm 2. ©The Electrochemical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
