拉曼光谱对电极材料和电解液的表征

Characterization of electrode material and electrolyte by Raman spectroscopy

锂离子电池由于具有高的输出电压和高的比能量而在商品化电池中脱颖而出,所以研究锂离子电池电极材料的组成与分子结构,研究电池充放电过程中它的组成、分子结构的变化,对进一步优化正负极材料的性能有着重要的指导意义。而拉曼光谱对锂离子电池正负极材料及电解质都可进行识别及表征,成为分析电极材料最有力的工具。

Lithium-ion batteries are outstanding in commercial batteries due to their high output voltage and high energy density. Therefore, the study of composition and molecular structure of lithium-ion battery electrode materials, and the change of composition and molecular structure of the battery during charge and discharge have important guiding significance for further optimizing the performance of positive and negative materials. Raman spectroscopy is the most powerful tool to analyze the lithium-ion batteries electrode materials. Therefore, Raman spectroscopy was used to identify and characterize the positive and negative materials and electrolytes of lithium-ion batteries.