Glycination: A Simple Strategy to Enhance the Cycling Performance of Perylene Dianhydride for Secondary Li–Ion Battery Applications
2018; Wiley; Volume: 3; Issue: 38 Linguagem: Inglês
10.1002/slct.201801588
ISSN2365-6549
AutoresVeerababu Medabalmi, Kothandaraman Ramanujam,
Tópico(s)Advanced battery technologies research
ResumoAbstract Perylene‐based organic frameworks have received much attention in organic Li‐ion batteries (OLIBs) regime by virtue of their extended conjugation, flexibility and structural robustness. However, attaining stable cyclability is a major challenge due to their solubility issues and gradual decomposition. Herein, we report a simple strategy for realizing long‐term cyclability by the introduction of glycine group into perylene tetracarboxylic dianhydride (PTCDA). The resultant compound N,N′‐bis(glycinyl)perylene diimide (H 2 PDI) exhibited outstanding cyclability and retained 64% of theoretical capacity even after 2000 cycles with almost 100% coulombic efficiency. To the best of our knowledge, this is the best cycling performance of perylene based materials reported for OLIBs till date.
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