The extended cyclability of LiNi_0.5Mn_1.5O₄ (LNMO) electrodes featuring different water-based binders is here reported. LNMO electrodes with guar gum (GG) binders show a relatively stable cycle performance at 0 °C and room temperature. However, water-based binders exhibit higher capacity fade than those with polyvinylidene fluoride (PVdF) binder at 50 °C. Although PVdF binder has a lower adhesion force than CMC and GG; PVdF-based electrodes exhibit better capacity retention than those with water-based binders at 50 °C over 1000 cycles. Finally, operando Differential Electrochemical Mass Spectrometry (DEMS) experiments were carried out to analyze the evolution of volatile decomposition products formed over cycling at 1C and 30 °C of CMC-, GG- and PVdF-based LNMO electrodes. CO₂ and H₂ gas evolutions increase remarkably at both high temperatures and high potentials, i.e., ~ 4.7 V.

_{LiNi 0.5} Mn _1.5 O ₄的延长循环性能本文报道了具有不同水基粘合剂的 (LNMO) 电极。具有瓜尔胶 (GG) 粘合剂的 LNMO 电极在 0 °C 和室温下表现出相对稳定的循环性能。然而，在 50 °C 时，水基粘合剂比聚偏二氟乙烯 (PVdF) 粘合剂的容量衰减更高。虽然 PVdF 粘合剂的粘合力比 CMC 和 GG 低；PVdF 基电极在 1000 次循环后，在 50 °C 下表现出比水基粘合剂更好的容量保持率。最后，进行了操作差分电化学质谱 (DEMS) 实验，以分析基于 CMC、GG 和 PVdF 的 LNMO 电极在 1C 和 30°C 循环过程中形成的挥发性分解产物的演变。CO ₂和H ₂在高温和高电位下，气体释放显着增加，即~4.7 V。