A Three in One Strategy to Achieve Zirconium Doping, Boron Doping, and Interfacial Coating for Stable LiNi_0.8Co_0.1Mn_0.1O₂ Cathode.

ABSTRACT: LiNi_0.8Co_0.1Mn_0.1O₂ cathodes suffer from severe bulk structural and interfacial degradation during battery operation. To address these issues, a three in one strategy using ZrB₂ as the dopant is proposed for constructing a stable Ni-rich cathode. In this strategy, Zr and B are doped into the bulk of LiNi_0.8Co_0.1Mn_0.1O₂, respectively, which is beneficial to stabilize the crystal structure and mitigate the microcracks. Meanwhile, during the high-temperature calcination, some of the remaining Zr at the surface combined with the surface lithium source to form lithium zirconium coatings, which physically protect the surface and suppress the interfacial phase transition upon cycling. Thus, the 0.2

SUBMITTER: Feng Z 

PROVIDER: S-EPMC7816706 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature