LiMn2O4 (LMO) and LiFePO4 (LFP) were found to react with Li6.75La3Zr1.75Ta0.25O12 (LLZTO) at about 500 °C by X-ray diffraction.
LiCoO2 (LCO) and LiNi0.33Co0.33Mn0.33O2 (NCM) were found to react with LLZTO at about 700 °C by Raman spectra.
LaCoO3 is one possible reaction product between LCO and LLZTO. LaCo1−xMnxO3 is one possible reaction product between NCM and LLZTO.