A large π-conjugated tetrakis (4-carboxyphenyl) porphyrin anode enables high specific capacity and superior cycling stability in lithium-ion batteries

Han Wu; Jianjun Zhang; Xiaofan Du; Min Zhang; Jinfeng Yang; Jinning Zhang; Ting Luo; Hao Liu; Hai Xu; Guanglei Cui

doi:10.1039/c9cc05474j

A large π-conjugated tetrakis (4-carboxyphenyl) porphyrin anode enables high specific capacity and superior cycling stability in lithium-ion batteries

Chem Commun (Camb). 2019 Sep 19;55(76):11370-11373. doi: 10.1039/c9cc05474j.

Authors

Han Wu¹, Jianjun Zhang, Xiaofan Du, Min Zhang, Jinfeng Yang, Jinning Zhang, Ting Luo, Hao Liu, Hai Xu, Guanglei Cui

Affiliation

¹ College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China. xhisaac@csu.edu.cn.

PMID: 31478549
DOI: 10.1039/c9cc05474j

Abstract

We demonstrated a novel single molecule - tetrakis(4-carboxyphenyl) porphyrin (TCPP) with a large π-conjugated system as a high-performance organic anode of lithium batteries. It was found that this TCPP displayed relatively low solubility (<0.1 mg mL-1) in a 1 M LiDFOB/PC electrolyte, high reversible specific capacity (ca. 1200 mA h g-1 at 358 mA g-1), excellent rate capability (548.4 mA h g-1 at 8 A g-1) and superior cycling performance (capacity retention of 89% after 2500 cycles at 6 A g-1).