High-Ni cathode material improved with Zr for stable cycling of Li-ion rechargeable batteries.

ABSTRACT: The Zr solvent solution method, which allows primary and secondary particles of LiNi_0.90Co_0.05Mn_0.05O₂ (NCM) to be uniformly doped with Zr and simultaneously to be coated with an Li₂ZrO₃ layer, is introduced in this paper. For Zr doped NCM, which is formed using the Zr solvent solution method (L-NCM), most of the pinholes inside the precursor disappear owing to the diffusion of the Zr dopant solution compared with Zr-doped NCM, which is formed using the dry solid mixing method from the (Ni_0.90Co_0.05Mn_0.05)(OH)₂ precursor and the Zr source (S-NCM), and Li₂ZrO₃ is formed at the pinhole sites. The mechanical strength of the powder is enhanced by the removal of th

SUBMITTER: Park K 

PROVIDER: S-EPMC9055541 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature