Producing materials with suitable features including robust, and high electrical conductivity for the realization of excellent electrochemical performance for supercapacitor devices remains a great challenge. In this regard, we optimize and used the combustion synthesis technique assisted with urea for the production of a positive electrode based on battery type lithium manganese oxide (LiMnO) and activated carbon as negative electrode materials for high voltage hybrid devices in aqueous electrolytes. The samples were analyzed with X-ray diffraction, Raman spectroscopy, and scanning electron microscopy. The structural properties of the material were studied and hybrid devices fabricated present a specific capacitance of 65 F g⁻¹ and 78 F g⁻¹, at 0.5 A g⁻¹ in 1 M Li₂SO₄ and 1 M Na₂SO₄ respectively, with long-term stability after continuous cycling. These result shows that this strategy can revolutionize new ways to the synthesis of a plethora of materials for high voltage energy storage applications.

为了实现超级电容器器件的优异电化学性能，生产具有合适特性（包括坚固且高电导率）的材料仍然是一个巨大的挑战。在这方面，我们优化并使用了尿素辅助的燃烧合成技术，用于生产基于电池型锂锰氧化物（LiMnO）和活性炭的正极，作为水性电解质中高压混合装置的负极材料。用X射线衍射，拉曼光谱和扫描电子显微镜分析样品。所研究的材料的结构性质和混合设备制造的65 F G存在的特定电容^-1和78 F G ^-1 0.5，A克^-1在1 M Li ₂ SO ₄和1 M Na ₂ SO _4中分别具有连续循环后的长期稳定性。这些结果表明，该策略可以革新用于高压储能应用的多种材料合成的新方法。