Li-rich layered oxides can provide high energy density, but their further application is hindered by capacity decrease and voltage decay in the course of cycling. Herein, we blended layered oxide Li_1.2Mn_0.6Ni_0.2O₂ (LL) with olivine structured LiMn_0.8Fe_0.2PO₄/C (LFMP) cathode material via a simple method, with improved results of excellent cycle stability, low voltage decay and good thermal stability. The result of TEM and ICP reveals that the LL enabled by LFMP can mitigate the surface-induced phase transition (layered to spinel) and suppress Mn dissolution of LL. As a consequence of CV and GITT test and analysis, the buffer effect of LFMP for LL is benefit to support the layered structure in subsequent cycles, which can provide the long cycle capacity and lower voltage decay for the hybrid materials.

富含锂的层状氧化物可提供高能量密度，但在循环过程中容量下降和电压衰减会阻碍其进一步应用。在这里，我们将层状氧化物Li _1.2 Mn _0.6 Ni _0.2 O ₂（LL）与橄榄石结构化的LiMn _0.8 Fe _0.2 PO ₄共混/ C（LFMP）阴极材料通过一种简单的方法，具有出色的循环稳定性，低电压衰减和良好的热稳定性的改进结果。TEM和ICP的结果表明，LFMP使能的LL可以减轻表面诱导的相变（分层到尖晶石）并抑制LL的Mn溶解。由于CV和GITT测试和分析的结果，LFMP对LL的缓冲作用有利于在后续循环中支持分层结构，这可以为混合材料提供长循环容量和较低的电压衰减。