With the rising global demand for cost-effective sustainable batteries, lithium-ion batteries are at the forefront as energy storage solutions. However, achieving a high energy density with long-term stability in such batteries is essential to extending the usage time of electric devices. LiNi₀.₅Mn₁.₅O₄ (LNMO), known for its thermal stability and cost-effectiveness, is a promising material for high-voltage cathodes. Yet, its application is limited by undesirable side reactions such as electrolyte decomposition, which decreases its performance over time.