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Lithium-ion battery has been widely used in various portable electronic products due to its benefits of high energy density, power density and average output voltage, longer cycle life and so on. However, the traditional LiCoO2 cathode material has many problems, such as resource scarcity, high price, toxicity and small actual specific capacity, which cannot meet the current development needs of lithium-ion batteries. Therefore, the development of new high capacity and low price electrode materials is one of the focuses of lithium-ion battery research. This paper summarizes the development and pros/cons of organic and inorganic hybrid materials, conductive polymers and transition metal chalcogenides as new electrode materials, covering the design, synthesis and electrochemical properties of each material. Meanwhile, the structure and morphology of the new electrode material can be characterized by means of transmission electron microscope, scanning electron microscope, X-ray diffraction, Raman spectrum, infrared spectrum and other characterization methods, which could explain the performance of lithium storage.

Synthesis and application of electrode materials for lithiumion batteries