Tailored charging protocol for densified lithium deposition and stable initially anode-free lithium metal pouch cells.

ABSTRACT: The low mechanical strength and insufficient lithium-ion conductivity of solid-electrolyte interphase will incur inhomogeneous lithium deposition and eventually cause battery failure, hindering practical application of lithium metal batteries. Combining multiple characterization techniques and COMSOL simulation, here we report that the commonly-adopted constant current charge protocol would result in formation of highly porous lithium metal negative electrode, leading to severe parasitic reactions. To ameliorate this problem, we propose a middle peak current charge protocol with a peak current in the middle of charging step, which could guide the nucleation and growth of densified lithium deposition with the derived solid-electrolyte interphase possessing significantly improved mechanical

SUBMITTER: Liu Y 

PROVIDER: S-EPMC12780264 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature