Exploiting grain boundary diffusion to minimize dendrite formation in lithium metal-solid state batteries

Abstract

Maintaining interfacial contact between the Li metal anode and the solid electrolyte is a key challenge in developing Li metal-based solid-state batteries (LMSSB). At moderate discharge rates, relatively slower diffusion...

Li Stripping Behavior of Anode‐Free Solid‐State Batteries Under Intermittent‐Current Discharge Conditions

“…Moreover, the different microstructures of in situ Li are likely to affect the stripping capacity, as the diffusion and creep flow processes are highly influenced by microstructures of Li. [31][32][33]…”

Designing low-strain cathode materials for long-life all-solid-state batteries

“…The generated voids also exhibited increased interconnectivity, leading to the formation of large and ake-like cracks ∼10 mm in size. 88,89 The presence of such voids near the CAM particle surfaces impeded Li-ion transfer between the CAMs and SEs, resulting in the observed increase in overpotential and the subsequent decline in capacity.…”

Perspectives on Li Dendrite Penetration in Li7La3Zr2O12‐Based Solid‐State Electrolytes and Batteries: Materials, Interfaces, and Charge Transfer

“…[85] Relatively slower diffusion within the anode results in roughening and void formation in Li near the interface. [86] Bruce et al pointed out that creep rather than Li diffusion could affect the void formation since improvement in the stack pressure could increase the threshold of current density. [87] The interfacial void formation easily leads to the preferential reduction of the Li/LLZO contact area and increases the local current density at the interface during the subsequent Li plating.…”