Amino-Acid-Substituted Perylene Diimide as the Organic Cathode Materials for Lithium-Ion Batteries.

ABSTRACT: One of the most effective cost reduction and green engineering projects is to introduce organic compounds to electrode materials instead of expensive inorganic-based materials. In this work, derivatives of perylene diimide substituted with amino acids (PDI_AAs) showed the characteristics of redox-active organic compounds and were, therefore, used as cathode materials of lithium-ion batteries (LIBs). Among the as-synthesized PDI_AAs, the L-alanine-substituted PDI (PDI_A) showed the most improved cycling performances of 86 mAhg^-1 over 150 cycles with retention of 95% at 50 mAg^-1. Furthermore, at a high current density of 500 mAg^-1, PDI_A exhibited a long-term cycling performance of 47 mAhg^-1 (retention to 98%) over 5000 cycles. In addition, ex situ

SUBMITTER: Seong H 

PROVIDER: S-EPMC9861502 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature