Synthesis of spherical Ni0.8Co0.1Mn0.1(OH)2 precursor via hydrothermal method assisted by microfluidics

Abstract

Nickel-rich materials have been considered as promising cathode candidates for Li-ion batteries. In this work, the spherical Ni0.8Co0.1Mn0.1(OH)2 precursor with good crystalline is synthesized via a hydrothermal method assisted with microfluidics. The effects of (NH4)2CO3 aqueous solution addition ratio and hydrothermal time on the formation of precursors are investigated comprehensively. The as-obtained precursors after optimization (hydrothermal time of 24 h and the concentration of the (NH4)2CO3 is 0.3 mol/L) display the spherical microstructure with homogenously distribution morphology, which can be clearly observed by scanning electron microscope. This work provides a rational route to controllably prepare the spherical Ni0.8Co0.1Mn0.1(OH)2 precursors.

Research Progress of Single‐Crystal Nickel‐Rich Cathode Materials for Lithium Ion Batteries

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YEŞİL YÖNTEM İLE KÜRESEL Ni1/3Co1/3Mn1/3CO3 PARÇACIKLARIN SENTEZİ

“…(Kim, Park et al 2019) Commonly, Li[NixCoyMn1−x−y]O2 is prepared from either [NixCoyMn1−x−y](OH)2 or [NixCoyMn1−x−y](CO3) precursors. (Liu, Tan et al 2019) Not only the electrochemical performance but also phase purity, the crystallinity, particle morphology, textural properties, and cation distribution of Li[NixCoyMn1−x−y]O2 material extremely depends on the synthesis procedure of precursor. The conventional synthesis methods such as co-precipitation (Hou, Zhang et al 2017), solid-state (Wang, Yin et al 2017), sol-gel synthesis, (Zhu, Yang et al 2019) etc., were usually applied in the synthesis of Ni-Mn-Co based materials.…”