LSM (Lanthanum Strontium Manganite) Electrode Powder for SOFC/SOEC, 100 or 500 g/bottle, CSOFECEPLSM

In both Solid Oxide Fuel Cells (SOFC) and Solid Oxide Electrolysis Cells (SOEC), LSM (Lanthanum Strontium Manganite) is the most well-characterized and established cathode (or oxygen electrode) material. While newer "MIEC" materials like LSCF are favored for lower temperatures, LSM remains the industry benchmark for high-temperature operations (>750 °C) due to its exceptional chemical compatibility with Zirconia-based electrolytes and its proven long-term structural stability.

LSM is a perovskite oxide with the general formula La{1-x}SrxMnO3. Its performance is defined by its high electronic conductivity but relatively low ionic conductivity. (1) Operating Window: Best suited for 750 °C to 1000 °C. At temperatures below 700 °C, the kinetics of the Oxygen Reduction Reaction (ORR) become too sluggish for pure LSM. (2) Compatibility: LSM has a Thermal Expansion Coefficient (TEC) that matches YSZ (~10-11 * 10^{-6} K^{-1}) almost perfectly, preventing delamination during thermal cycling. (3) A-Site Deficiency: Professional grade LSM powder is often prepared with a "slight A-site deficiency" (e.g., (La,Sr){0.95}MnO3). This prevents the formation of insulating secondary phases like La2Zr2O7 at the electrolyte interface during high-temperature sintering.

Part Number	CSOFECEPLSM (C-SOFEC-EP-LSM)
CAS	66402-68-4
Purity	≥99.5%
Chemical Formula	(La0.75Sr0.25)0.95MnO3-δ Other chemical formulas with customized ratios, such as (La0.80Sr0.20)0.95MnO3-δ, can be supplied upon request.
PSD (D50)	0.5-2.0 um
XRD
Ionic Conductivity	≥150S/m@600℃～800℃
Package Grade	100 or 500 g/bottle (other grades, such as 1000 g or larger can be supplied upon request)

References:

1. M. Liang, et al., Preparation of LSM–YSZ composite powder for anode of solid oxide electrolysis cell and its activation mechanism, J. Power Sources, 2009, 190, 341-345.
2. W. Wang, et al., A Comparison of LSM, LSF, and LSCo for Solid Oxide Electrolyzer Anodes, J. Electrochem. Soc., 2006, 153, A2066. 
3. H. Turk, et al., Boon and Bane of Local Solid State Chemistry on the Performance of LSM-Based Solid Oxide Electrolysis Cells, Adv. Energy Mater., 2025, 15, 2405599.