With the aim of probing the influence of the highly oxidizable selenium in the electrochemically inactive cathode Li₂MnO₃ material, samples were prepared with selenium substitution in the manganese coordination according to the general formula of Li₂Mn_1-xSe_xO₃. In Li-ion batteries, oxygen instabilities are one of the major problems confronted that effect the performances of the cathode materials. The crystal and electronic structure properties of the materials were studied with x-ray absorption techniques. Selenium atoms were determined to build Li₂SeO₄ crystal and due to the oxygen removal during sample preparation mechanisms were determined to cause lower ionic conductivity than the parent Li₂MnO₃ oxide. The atomic distances in the materials were determined by the fits performed by the commercial code FEFF 8.2. Li₂SeO₄ crystal was determined as stacked between manganese and lithium atoms and isolated with each other.

为了探究电化学惰性阴极Li ₂ MnO ₃材料中高氧化性硒的影响，根据Li ₂ Mn _1-x Se _x O _3的通式制备了锰配位的硒取代样品。在锂离子电池中，氧的不稳定性是所面临的影响阴极材料性能的主要问题之一。用X射线吸收技术研究了材料的晶体和电子结构性质。确定硒原子以生成Li ₂ SeO ₄晶体和由于样品制备过程中的氧去除被确定为导致离子电导率低于母体Li ₂ MnO ₃氧化物。材料中的原子距离由商业代码FEFF 8.2执行的拟合确定。确定Li ₂ SeO ₄晶体堆叠在锰和锂原子之间并且彼此隔离。