h) 2018 - 49 Documents

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    TAMARIND SEED SKIN-DERIVED FIBER-LIKE CARBON NANOSTRUCTURES AS NOVEL ANODE MATERIAL FOR LITHIUM-ION BATTERY
    (Springer Link, 2018-03-02) Sumit Ranjan, Sahu; Parimala Devi, D; Phanikumar, V V N; Ramesh, T; Rajalakshmi, N; Praveena, G; Prakash, R; Bijoy, Das; Gopalan, R
    Demand of low-cost carbonaceous anode materials for lithium-ion batteries has led to the development of anode materials from different bio-sources. In this regard, tamarind seed (skin) was used as a precursor to prepare disordered carbon as an anode material for lithium-ion batteries. The carbon was prepared through simple hydrothermal method and was characterized by X-ray diffraction (XRD), Raman spectroscopy, Brunauer–Emmett–Teller (BET) measurements, field emission scanning electron microscopy (FE-SEM), and transmission electron microscopy (TEM) techniques. It exhibited amorphous carbon particles arranged in a fiber-like morphology with high surface area of 508 m2 g−1. The binder content was optimized for the carbon to achieve high and stable capacity. Electrochemical performance of the as-prepared carbon with optimized binder content showed a stable reversible specific capacity of 224 mAhg−1 after 300 cycles at 1 C-rate. The stable cycling performance of carbon at high current rate is explained by electrochemical impedance spectroscopy (EIS) and FE-SEM data of cycled electrodes. The low cost and stable specific capacity make the carbon as potential anode material for lithium-ion battery.