Uniform Na⁺ Doping-Induced Defects in Li- and Mn-Rich Cathodes for High-Performance Lithium-Ion Batteries.

ABSTRACT: The corrosion of Li- and Mn-rich (LMR) electrode materials occurring at the solid-liquid interface will lead to extra electrolyte consumption and transition metal ions dissolution, causing rapid voltage decay, capacity fading, and detrimental structure transformation. Herein, a novel strategy is introduced to suppress this corrosion by designing an Na⁺-doped LMR (Li_1.2Ni_0.13Co_0.13Mn_0.54O₂) with abundant stacking faults, using sodium dodecyl sulfate as surfactant to ensure the uniform distribution of Na⁺ in deep grain lattices-not just surface-gathering or partially coated. The defective structure and deep distribution of Na⁺ are verified by Raman spectrum and high-resolution transmission electron micros

SUBMITTER: He W 

PROVIDER: S-EPMC6661944 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature