Preparation and Electrochemical Properties of Bamboo BACA.pdf

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Preparation and Electrochemical Properties of Bamboo-based Carbon for Lithium-Ion-Battery Anode Material In this study, we use bamboo as a raw material and KOH as an activator to prepare a bamboo-based carbon anode material for use in lithium-ion batteries by applying the microwave radiation method. The crystal structure and morphology of the prepared material are characterized by X-ray diffraction and scanning electron microscopy, respectively, and the electrochemical performance of the material is characterized by galvanostatic chargedischarge and cyclic voltammetry. The results demonstrate that the bamboo-based carbon material can be used as an anode material with high electronic and ionic conductivity in LIBs. The initial charge and discharge capacities of the bamboo-based activated carbon material at 0.5 C range up to 961.4 and 2071 mA·h·g−1, respectively. The first charge and discharge Coulombic efficiency is only 46.4%, and after 100 cycles, the circulation charge and discharge capacities remain at 721.8 and 737.3 mA·h·g−1, respectively. Overall, the efficiency remains above 97.8%, which demonstrates the excellent cycling stability of the bamboo-based carbon material. The sample shows good rate performance and excellent cycle stability because of the large specific surface area, which can improve the permeability of electrolyte, increase the reactive sites, and improve the electrochemical performanceDalam penelitian ini, kami menggunakan bambu sebagai bahan baku dan KOH sebagai aktivator untuk menyiapkan bahan karbon anoda berbasis bambu untuk digunakan dalam baterai lithium-ion dengan menerapkan metode radiasi gelombang mikro. Struktur kristal dan morfologi bahan yang disiapkan ditandai oleh difraksi sinar-X dan pemindaian mikroskop elektron, masing-masing, dan kinerja elektrokimia dari bahan tersebut ditandai dengan muatan-pelepasan galvanostatik dan voltametri siklik. Hasil menunjukkan bahwa bahan karbon berbasis bambu dapat digunakan sebagai bahan anoda dengan konduktivitas elektronik dan ionik yang tinggi dalam LIBs. Kapasitas pengisian dan pengosongan awal bahan karbon aktif berbasis bambu pada kisaran 0,5 C hingga 961,4 dan 2071 mA · h · g − 1, masing-masing. Efisiensi pengisian dan pengosongan pertama Coulombic hanya 46,4%, dan setelah 100 siklus, muatan sirkulasi dan kapasitas pengosongan tetap masing-masing pada 721,8 dan 737,3 mA · h · g − 1. Secara keseluruhan, efisiensi tetap di atas 97,8%, yang menunjukkan stabilitas bersepeda yang sangat baik dari bahan karbon berbasis bambu. Sampel menunjukkan kinerja laju yang baik dan stabilitas siklus yang sangat baik karena luas permukaan spesifik yang besar, yang dapat meningkatkan permeabilitas elektrolit, meningkatkan situs reaktif, dan meningkatkan kinerja elektrokimiaWith the alarming increase in the severity of the global energy crisis, scientists worldwide have increasingly turned to the research and development of new forms of renewable clean energy. In this regard, lithium-

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Term
Summer
Professor
S.T
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