DNA-directed fabrication of LiFePO₄ micro-roses as high-performance electrodes for lithium-ion batteries

초록

In this study, we successfully synthesized LFP-CNT-DNA micro-roses wherein DNA facilitated the uniform dispersion of carbon nanotubes (CNTs) and acted as a scaffold for the growth of LiFePO4 (LFP) nanomaterials. DNA incorporation ensured the even distribution of CNTs, creating a robust template that supported the formation and stabilization of LFP nanoparticles. This strategic synthetic approach led to the development of a highly efficient LFP-CNT-DNA-based cathode. The LFP-CNT-DNA-based cathode demonstrated excellent performance at high charge/discharge current densities, exhibiting an impressive capacity of 110 mAh/g under a current density of 5 C, thus highlighting its ability to store and deliver substantial energy. Moreover, the cathode exhibited excellent durability, maintaining 88 % of its initial capacity even after 2000 cycles at a 5 C rate. This high retention ratio indicates the resilience and stability of the cathode during prolonged usage, thus making it a promising candidate for applications requiring long-lasting, high-performance energy storage solutions. The combination of high capacity and excellent cycle stability underscores the potential of the LFP-CNT-DNA nanomaterials for advanced battery technology.

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