Synthesis of LiNi0.5Mn1.5O4Hollow Microspheres and Their Lithium-Storage Properties

Interphase Stabilization of LiNi0.5 Mn1.5 O4 Cathode for 5 V-Class All-Solid-State Batteries

Employing high voltage cobalt-free spinel LiNi0.5 Mn1.5 O4 (LNMO) as a cathode is promising for high energy density and cost-effectiveness, but it has challenges in all-solid-state batteries (ASSBs). Here, it is revealed that the limitation of lithium argyrodite sulfide solid electrolyte (Li6 PS5 Cl) with the LNMO cathode is due to the intrinsic chemical incompatibility and poor oxidative stability. Through a careful analysis of the interphase of LNMO, it is elucidated that even the halide solid electrolyte (Li3 InCl6 ) with high oxidative stability can be decomposed to form resistive interphase layers with LNMO in ASSBs. Interestingly, with Fe-doping and a Li3 PO4 protective layer coating, LNMO with Li3 InCl6 displays stable cycle performance with a stabilized interphase at a high voltage (≈4.7 V) in ASSBs. The enhanced interfacial stability with the extended electrochemical stability window through doping and coating enables high electrochemical stability with LNMO in ASSBs. This work provides guidance for employing high-voltage cathodes in ASSBs and highlights the importance of stable interphases to enable stable cycling in ASSBs.

Urea-assisted hydrothermal synthesis of a hollow hierarchical LiNi0.5Mn1.5O4 cathode material with tunable morphology characteristics

The particle morphology and size of LiNi_0.5Mn_1.5O₄ material can be controlled by changing the precursors' morphology and size, which can be controlled by reactant concentration.

Facile synthesis and characterization of a SnO2-modified LiNi0.5Mn1.5O4 high-voltage cathode material with superior electrochemical performance for lithium ion batteries

The SnO₂-modified LiNi_0.5Mn_1.5O₄ high-voltage Li-ion cathode material exhibits superior electrochemical performance, and the synthetic method has the advantage of being facile.

High performance LiNi0.5Mn1.5O4 cathode material with a bi-functional coating for lithium ion batteries

LiPO₃/LiNi_0.5Mn_1.5O₄ exhibited superior cyclability and rate performance as a result of a bi-functional coating layer of LiPO₃.

Synthesis and performance of hollow LiNi0.5Mn1.5O4 with different particle sizes for lithium-ion batteries

Hollow LiNi_0.5Mn_1.5O₄ with different particle sizes was synthesized using MnCO₃ as the manganese resource, and the effects of particle size were investigated.

Research progress on design strategies, synthesis and performance of LiMn2O4-based cathodes

In this work, we review recent progress in structural design, designing composites with graphene/carbon nanotubes, crystalline doping, and coatings for improving the electrochemical performance of LiMn₂O₄-based cathode materials.