What question did this study set out to answer?

To observe the interfacial structure between LiCoO2 positive electrodes and Li2S–P2S5 solid electrolytes and evaluate the performance effects of a Li2SiO3 coating layer.

September 25, 2009Chemistry of Materials

Interfacial Observation between LiCoO₂ Electrode and Li₂S−P₂S₅ Solid Electrolytes of All-Solid-State Lithium Secondary Batteries Using Transmission Electron Microscopy

View Full Paper

Ask AI

Bookmark

To observe the interfacial structure between LiCoO2 positive electrodes and Li2S–P2S5 solid electrolytes and evaluate the performance effects of a Li2SiO3 coating layer.
Conducted transmission electron microscopy to analyze the interface between LiCoO2 positive electrodes and Li2S–P2S5 solid electrolytes after initial battery charging.
Applied a Li2SiO3 thin-film coating to LiCoO2 particles to assess its ability to inhibit element diffusion and interfacial layer formation.
Evaluated electrochemical performance of all-solid-state cells at low temperature (−30 °C) and under a high current density of 40 mA cm−2 at 100 °C.
An interfacial layer formed alongside mutual diffusion of Co, P, and S across the LiCoO2 and Li2S–P2S5 boundary following the initial charge in uncoated cells.
Li2SiO3 thin-film surface modification successfully suppressed mutual elemental diffusion and interfacial layer growth.
Coated cells exhibited improved electrochemical performance compared to noncoated cells, retaining function at −30 °C and operating at 40 mA cm−2 at 100 °C.

Authors

ASAtsushi SakudaOsaka Prefecture University AHAkitoshi HayashiOsaka Prefecture University MTMasahiro TatsumisagoOsaka Prefecture University

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Microscopy reveals lithium silicate coatings suppress interfacial diffusion in solid-state batteries, enhancing electrochemical stability across extreme temperatures.

Cite This Study

Sakuda et al. (2009) studied this question.

synapsesocial.com/papers/69c520d657e093063a95dc12 https://doi.org/10.1021/cm901819c

View Full Paper

Ask AI

Bookmark

Implication

Microscopy reveals lithium silicate coatings suppress interfacial diffusion in solid-state batteries, enhancing electrochemical stability across extreme temperatures.

Interfacial Observation between LiCoO₂ Electrode and Li₂S−P₂S₅ Solid Electrolytes of All-Solid-State Lithium Secondary Batteries Using Transmission Electron Microscopy

Key Points

Discussion

Implication

Cite This Study

Interfacial Observation between LiCoO₂ Electrode and Li₂S−P₂S₅ Solid Electrolytes of All-Solid-State Lithium Secondary Batteries Using Transmission Electron Microscopy

Key Points

Discussion

Implication

Cite This Study

Also Consider

Also Consider