writer：Qitian Luo,Taiping Zeng,Kai Gu,Qiao Lin,Weiqing Yang*
keywords：lignin, carbon electrode materials, electrolyte, electrochemical energy storage, supercapacitor, battery
source：期刊
Issue time：2024年

ABSTRACT: Lignin, a natural polymer material, has demonstrated significant potential for

advancement in the field of electrochemical energy storage. The utilization of lignin-derived

functional materials has greatly improved the performance and durability of devices for

electrochemical energy storage while simultaneously mitigating environmental pollution. The

present thesis investigates the application of lignin-derived electrochemical functional

materials, including electrode materials, electrolytes, conductive agents, and binders. When

employed as electrodes, lignin-derived carbon materials exhibit remarkable modifiability

(doping, cross-linking, and composite). Importantly, the presence of heteroatoms and active

sites for cross-linking plays a crucial role in regulating the disorder within the carbon layer and

controlling pore parameters. Lignin-based polymer materials, when employed in non-

electrochemically active storage functional components such as electrolytes, separators, and

binders, demonstrate exceptional mechanical strength, superior adhesion properties, and

enhanced ionic conductivity due to their distinctive phenylpropane structure and functional

groups (hydroxyl, carboxyl, and carbonyl). Additionally, we conducted a comprehensive analysis of the current market prospects for

lignin in supercapacitors and lithium-/sodium-ion batteries. Furthermore, we have systematically examined the challenges and

opportunities that lignin encounters in the field of energy storage, thereby providing valuable insights for further advancements in

lignin-based electrochemical energy storage materials.