Abstract: Li-rich manganese-based cathode materials have attracted much attention due to their high specific discharge capacity (>250 mAhg⁻¹), and are considered to be one of the most potential cathode materials for lithium-ion batteries. In the teaching experiment of electrochemical energy storage materials, guiding students to design a reasonable modification scheme is helpful to train students' ability to solve the bottleneck problems faced by lithium-rich manganese-based materials in the long-term cycle, including the irreversible migration of transition metal ions, the irreversible loss of lattice oxygen, and the problem that the intermediate phase is easily transformed into spinel phase during charge and discharge. These problems lead to negative effects such as low coulomb efficiency in the first circle, poor cycle and rate performance, rapid decline of specific capacity and voltage, etc., which limits the performance of Li-Mn-based materials in practical applications. In order to overcome the above problems, the modified Li-rich manganese-based materials with excellent electrochemical properties were prepared by means of element doping. The teaching experiment design introduces the new materials at the forefront of the subject into the actual teaching practice, closely combines the hot topics of lithium ion cathode materials, realizes the organic combination of traditional courses and the frontier of the subject, and improves students' theoretical knowledge and scientific research literacy.