Cathode chemomechanics controls Li metal solid-state battery performance under low stack pressures.

ABSTRACT: Stresses resulting from electrode material chemomechanics are strongly coupled to solid electrolyte-electrode interface failures. Such failures are significant barriers to realization of practical Li metal solid-state batteries (SSBs). Significant research efforts have been devoted to control anode chemomechanical stress. Here we show positive electrode (cathode) chemomechanical stress is also critical at commercially relevant low (e.g., <1 MPa) stack pressures. Using a series of model textured positive electrodes we provide the experimental evidence of the role of positive electrode lattice strain anisotropy during charge/discharge on positive electrode chemomechanics. Our model systems reveal that positive electrode chemomechanics significantly alter Li metal plating and stripping behavi

SUBMITTER: Moradi S 

PROVIDER: S-EPMC12537972 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature