Correlative electrochemical strain and scanning electron microscopy for local characterization of the solid state electrolyte Li_1.3Al_0.3Ti_1.7(PO₄)₃

• Nino Schön,
• Deniz Cihan Gunduz,
• Shicheng Yu,
• Hermann Tempel,
• Roland Schierholz and
• Florian Hausen

Beilstein J. Nanotechnol. 2018, 9, 1564–1572, doi:10.3762/bjnano.9.148

• , section JARA-Energy, 52425 Jülich, Germany 10.3762/bjnano.9.148 Abstract Correlative microscopy has been used to investigate the relationship between Li-ion conductivity and the microstructure of lithium aluminum titanium phosphate (Li1.3Al0.3Ti1.7(PO4)3, LATP) with high spatial resolution. A key to

• discussed. We demonstrate that correlative microscopy is an adjuvant tool to gain local insights into interfacial properties of energy materials. Keywords: correlative microscopy; electrochemical strain microscopy (ESM); Li1.3Al0.3Ti1.7(PO4)3 (LATP); scanning electron microscopy (SEM); solid state

• energy density [1][8][9][10]. Lithium aluminum titanium phosphate Li1.3Al0.3Ti1.7(PO4)3 (LATP), a ceramic with NASICON-type structure, is especially considered as a beneficial solid state electrolyte due to its superior lithium-ion conductivity in the range of 2 mS cm−1 in the “bulk” and 2 µS cm−1 at