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Abstract

While several recent publications describe cathodes for electrochemical energy storage materials made from regrown biomass in aqueous electrolytes, their transfer to lithium-organic batteries is challenging. In order to gain a deeper understanding, we therefore investigate influences on charge storage in model systems based on biomass-derived, redox-active compounds and comparable structures. Hybrid materials from these model polymers and porous carbon are compared in order to precisely determine causes of exceptional capacity in lithium-organic systems. It is found that besides redox activity especially wettability greatly influences capacity of the composites. Furthermore, in addition to bio-derived molecules with catechol functionalities, which are commonly described as redox-active species in lithium-bioorganic systems, this manuscript further describes guaiacol groups as a promising alternative for the first time and compares performance of respective compounds.