Sodium-Ion Batteries

6Organic Cathodes for Sodium‐Ion Batteries

6.1 Introduction

Compared to the inorganic cathodes in previous chapters, organic cathode materials (OCMs) have the benefits of being renewable, environmentally friendly, low cost, and high capacity because they are rich in carbon, hydrogen, oxygen, and other elements and have received extensive attention in recent years [1]. OCMs can be directly extracted from plants (such as crops, fruits, and vegetables) or prepared by simple methods using biomass as raw materials. The carbon dioxide produced in the process of extraction and preparation of organic materials, battery assembly, and recycling can be absorbed and utilized by plants, thus reflecting good recyclability and reproducibility, as shown ...