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Sergey V. Gnedenkov,Denis P. Opra,Sergey L. Sinebryukhov,Alexander K. Tsvetnikov,Alexander Y. Ustinov,Valentin I. Sergienko 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.3
Electrochemical energy production has been extensively used in large scale applications. At present,organic compounds are considered as efficient and environmentally friendly electrode materials. Thepaper describes the study of the possibility of using hydrolysis lignin as the lithium battery cathodematerial. Hydrolysis lignin features have been investigated by the impedance spectroscopy, scanningelectron microscopy, and energy-dispersive X-ray spectroscopy. The discharge performance ofhydrolysis lignin-based lithium battery was investigated at room temperature using 1 M LiBF4 in gbutyrolactonelectrolyte system. It was found that the specific capacity of hydrolysis lignin was equal to450 mAh g1 at a discharge current density of 25 mA/cm2. Two main voltage plateaus located at ~1.8 and~1.1 V were observed. The chemical composition of cathode materials upon battery discharge down to0.9 V was studied by the X-ray photoelectron spectroscopy and infrared spectroscopy. The suggestionson possible electrochemical reactions occurring in the lithium/hydrolysis lignin system were made onthe basis of the products composition analysis. The results demonstrate the potential of hydrolysis ligninbased batteries to be used as low-rate power sources.