The specific capacity of conventional conducting polymer composite electrodes is small. Based on the characteristics of donor-acceptor (D-A) conducting polymers with a wide range of π-electron leaving domains, narrow band gap, high conductivity and excellent electrochemical properties, D-A polymer monomers OTTBT (4, 8-Bis(3,4-ethylenedioxythiophene-2-yl)-6-(2-ethylhexyl)-[1,2,5]thiadiazolo[3,4-f] benzotriazole) and TTBT (4, 8-Bis(thiophen-2-yl)-6-(2-ethylhexyl)-[1,2,5]thiadiazolo[3,4-f] benzotriazole) were synthesized by Stille cross-coupling reaction using benzothiadiazole-benzotriazole as the acceptor unit and EDOT (3,4-ethylenedioxythiophene) or thiophene as the donor unit. Each monomer was polymerized in situ on the surface of activated carbon (AC) to obtain POTTBT@AC and PTTBT@AC composite electrode materials, respectively. The results showed that the charge storage behavior of both composites was controlled by the pseudocapacitance process. POTTBT@AC had better specific capacity, rate performance and cycling stability than PTTBT@AC. The lithium-ion storage performance of POTTBT was significantly higher than that of PTTBT, probably due to the former's higher electron supply capacity, rigidity and co-planarity. Both electrode materials had good specific capacity and rate performance and were suitable as anode materials for lithium batteries. D-A conductive polymer provides a new idea for the synthesis of electrode materials for high-capacity lithium batteries.

常规导电聚合物复合电极的比容量小。基于供体-受体（DA）导电聚合物具有广泛的π电子离去域、窄带隙、高电导率和优异的电化学性能的特点，DA聚合物单体OTTTT（4, 8-Bis(3,4-乙烯二氧噻吩-2-基）-6-（2-乙基己基）-[1,2,5]噻二唑并[3,4- f ]苯并三唑）和TTBT（4, 8-双（噻吩-2-基）-6- (2-乙基己基)-[1,2,5]噻二唑并[3,4- f] benzotriazole) 是通过 Stille 交叉偶联反应合成的，使用苯并噻二唑-苯并三唑作为受体单元和 EDOT (3,4-乙烯二氧噻吩) 或噻吩作为供体单元。各单体在活性炭（AC）表面原位聚合，分别得到POTTBT@AC和PTTBT@AC复合电极材料。结果表明，两种复合材料的电荷存储行为均受赝电容过程控制。POTTBT@AC比PTTBT@AC具有更好的比容量、倍率性能和循环稳定性。POTTBT的锂离子存储性能显着高于PTTTT，可能是由于前者的电子供应能力、刚性和共面性更高。两种电极材料均具有良好的比容量和倍率性能，适合作为锂电池的负极材料。DA导电聚合物为高容量锂电池电极材料的合成提供了新思路。