This configuration represents a high-performance Anode-Supported Button Cell designed for intermediate temperatures. By using an LSC (Lanthanum Strontium Cobaltite) cathode with a GDC (Gadolinium-doped Ceria) buffer layer, you are optimizing for high catalytic activity while managing chemical compatibility.

Ni-YSZ Anode Support (~500–1000 um): It provides the mechanical integrity of the cell. Its porosity is usually 30-40% after reduction of NiO to Ni. It should note that the reduction step (typically 5% H2 in Ar or N2) is gradual to prevent micro-cracking of the thin electrolyte above it.

GDC pellets are frequently used as substrates to test the Area Specific Resistance (ASR) of new electrode materials (e.g., LSCF or SSC). By screen-printing the same electrode on both sides of a dense GDC pellet, you can use Electrochemical Impedance Spectroscopy (EIS) to isolate electrode performance without the complexity of a full fuel cell.

YSZ Electrolyte (5–20 um): It mainly act as a pure oxygen ion conductor with near-zero electronic conductivity. Even though GDC has higher conductivity, YSZ is used as the main electrolyte to prevent the "electronic leak" (internal short circuit) that occurs if GDC is exposed to the reducing atmosphere of the anode.

GDC Buffer Layer (1–5 um): It is mainly used to prevent the formation of SrZrO3. LSC and YSZ react at sintering temperatures (>900$°C) to form a highly resistive insulating layer. The GDC acts as a chemical barrier. It must be dense enough to block Sr diffusion but thin enough to keep ohmic resistance low.

LSC Cathode (20–50 um): It is a kind of mixed ionic-electronic conductor (MIEC). LSC has much higher exchange current density than traditional LSM, allowing for operation at 550°C – 750°C.

Part Number	CSOFECASBCNYGL (C-SOFEC-ASBC-NYGL)
Cell Composition	Ni-YSZ (D=20 mm, T=400 um) 8YSZ (D=20 mm, T=3 um) GDC (D=20 mm, T=3 um) LSC (D=12.5 mm, T=12 um)
Button Cell Size	(1) D=20 mm (2) D=25 mm
Package Grade	1 pcs/pack (bulk quantity can be supplied upon request and certain discount will be applied)

References:

1. Z. Drach, et al., Impedance spectroscopy analysis inspired by evolutionary programming as a diagnostic tool for SOEC and SOFC, Solid State Ionics, 2016, 288, 307-310.
2. N. Q. Minh, et al., Sputtered Thin-Film Solid Oxide Fuel Cells, ECS Trans., 2021, 103 67.