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首页> 外文期刊>Journal of industrial and engineering chemistry >Hydrolysis lignin: Electrochemical properties of the organic cathode material for primary lithium battery
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Hydrolysis lignin: Electrochemical properties of the organic cathode material for primary lithium battery

机译：水解木质素：一次锂电池有机阴极材料的电化学性能

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摘要

Electrochemical energy production has been extensively used in large scale applications. At present, organic compounds are considered as efficient and environmentally friendly electrode materials. The paper describes the study of the possibility of using hydrolysis lignin as the lithium battery cathode material. Hydrolysis lignin features have been investigated by the impedance spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The discharge performance of hydrolysis lignin-based lithium battery was investigated at room temperature using 1 M LiBF4 in γ-butyrolacton electrolyte system. It was found that the specific capacity of hydrolysis lignin was equal to 450 mAh g~(-1) at a discharge current density of 25 μA/cm~2. Two main voltage plateaus located at ~1.8 and ~1.1 V were observed. The chemical composition of cathode materials upon battery discharge down to 0.9 V was studied by the X-ray photoelectron spectroscopy and infrared spectroscopy. The suggestions on possible electrochemical reactions occurring in the lithium/hydrolysis lignin system were made on the basis of the products composition analysis. The results demonstrate the potential of hydrolysis lignin based batteries to be used as low-rate power sources.
机译：电化学能源生产已广泛用于大规模应用中。目前，有机化合物被认为是有效且环保的电极材料。本文描述了使用水解木质素作为锂电池正极材料的可能性的研究。水解木质素的特性已通过阻抗光谱，扫描电子显微镜和能量色散X射线光谱进行了研究。在室温下，使用1 M LiBF4在γ-丁内酯电解质体系中研究了水解木质素基锂电池的放电性能。发现在25μA/ cm〜2的放电电流密度下，水解木质素的比容量等于450mAh g〜（-1）。观察到两个主电压平稳段位于〜1.8和〜1.1V。通过X射线光电子能谱和红外光谱研究了电池放电至0.9 V时阴极材料的化学成分。在产物组成分析的基础上，提出了在锂/水解木质素体系中可能发生的电化学反应的建议。结果表明水解木质素基电池可用作低速电源的潜力。

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