Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector

The development of new lithium?ion batteries (LIBs) with fast charging capabilities has emerged as a critical technological advancement in response to the growing demand for energy storage. The materials used for the electrodes significantly affect the charge and discharge rates of LIBs. Organic electrodes with structural flexibility support fast lithium?ion transport and are considered promising candidates for building fast?charging LIBs. However, it is very difficult to create organic electrodes that can cycle steadily and reach high energy density in a few of minutes. To solve this issue, it is imperative to accelerate the transport of electrons and lithium ions in the electrode. Here, we demonstrate that Fc?SO3Li, a ferrocene?based polymer electrode, can be used as a fast?charging organic electrode for LIBs. Thanks to its molecular architecture, LIBs with Fc?SO3Li can cycle steadily for over 10,000 cycles with a capacity retention rate of 99.99% and reach an energy density of approximately 183 Wh kg?1 in 72 seconds. Moreover, optimized electron and ion transmission pathways are achieved by the Fc?SO3Li?CNT50 composite material, which is produced by the in?situ polymerization of monomers and carbon nanotube. After 10,000 cycles at a high current density of 50C, it may still receive a high energy density of approximately 304 Wh kg?1. This study provides valuable insights into designing cathode materials for LIBs that combine high power and ultra?long cycle life.This article is protected by copyright. All rights reserved

» Publication Date: 19/06/2024

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