Space charge

Physics

Electron

Electrode

Organic chemistry

Charge (physics)

Analytical Chemistry (journal)

Endocrinology

Physical chemistry

Chemical physics

Ionic bonding

Chemistry

Materials science

Lithium (medication)

Cathode

Quantum mechanics

Electrolyte

Chromatography

Medicine

Joule

Direct and quantitative measurement of the effect of space charges in solid-state batteries remains very challenging. Here, we reveal the effect on the Li-ion transport quantitatively by NMR 2D exchange experiments and space-charge layer model calculations on the LixV2O5-LAGP interface. It is demonstrated that the space-charge layer leads to a higher barrier for Li-ion diffusion and smaller exchange current density and thus to a significantly higher interface resistance at the cathode-solid electrolyte interface.

Revealing the Impact of Space-Charge Layers on the Li-Ion Transport in All-Solid-State Batteries