Processing and manufacturing of next generation lithium-based all solid-state batteries

Operando Auger/XPS using an electron beam to reveal the dynamics/morphology of Li plating and interphase formation in solid-state batteries

“…More importantly, the electro-chemo-mechanical stability of the numerous solid electrode materials/SE interfaces is still unsatisfactory. 4,5 SE materials are also difficult to process, 6 especially for ceramic solid-state batteries, for which it is difficult to achieve good Li ion transport between the ceramics and electrode materials. 7 Second, at the anode, the best possible material is Li metal, but its use remains limited by possible dendrite formation and SE degradation at its surface, which can lead to rapid rollover of the cell.…”

“…In ASSBs, SEIs can originate from cell storage/cycling as well as from the sequential manufacturing processes, especially for ceramic based SEs. 6 The ideal SEI should, however, meet several requirements such as high ionic conductivity, compact structure and sufficient mechanical properties (both high elastic and shear strength) to suppress lithium dendrite formation. In practice, SEIs are often unstable and/or inhomogeneous and become thicker over time, which increase the electrode material/SE resistance and thus decrease the electrochemical performance.…”

Vacancy-controlled quaternary sulfide Na3−xZn1−xGa1+xS4 with improved ionic conductivity and aqueous stability

“…All-solid-state secondary ion batteries (ASSIBs) are expected to play a major role in next generation battery systems, because they enable the use of a metallic anode with less concern for short-circuit failure. [1][2][3] The replacement of ammable liquid electrolytes by solid-state electrolytes also signicantly alleviates the potential re hazard. In due course of research, solidstate electrolytes (SSEs) possessing Li ion conductivity (s ion ) equivalent to, or higher than, that of liquid electrolytes at room temperature (RT) were rst explored for use in ASSIBs.…”

Tailoring of the Anti-Perovskite Solid Electrolytes at the Grain-Scale

“…Enabling the Li metal anode in a solid-state battery (SSB) promises to attain specific cell energy densities above 400 Wh/kg and 1200 Wh/L. − However, significant materials and processing challenges are disrupting the materialization of working SSBs at present. , A major challenge in bridging this gap lies in the development of practical and feasible thin, dense, solid electrolyte (SE) membranes that can be processed at scale. − Additionally, it is widely understood in the SSB research that the pathways for processing solid electrolytes dictate the local microstructures, pore distributions, grain sizes, and lattice stress, , all of which play a critical role in their performance. There is a large body of work that conclusively shows that the stochasticity of microstructure and phases within the bulk solid electrolyte strongly contribute to the failure modes of the solid-state batteries. − Thus, it is imperative to achieve a high degree of control over the microstructure of solid electrolytes to nullify this failure mode in solid electrolytes.…”