Over the past several decades, remarkable progress has been achieved with electroactive organic compounds for LIBs. A number of diverse structural motifs, such as organic free-radicals, conjugated carbonyls, imine compounds, phenothiazine, phenoxazine, benzothiadiazole, dibenzothiophenesulfone, and azobenzenes have been explored as electrodes for batteries. So far however, most of these organic materials are still not competitive enough with high-performing inorganic electrode materials. Their practical application is severely hampered by their high solubility in organic electrolytes and low electronic conductivity, which leads to poor cycling stability and rate performance. Moreover, the charge capacity is generally limited to either one or two electrons per molecule or unit, which limits the overall capacity and energy density of the battery.