کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1292872 1497949 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel non-aqueous aluminum sulfur battery
ترجمه فارسی عنوان
یک باتری غیر آلومینیوم سولفور جدید
کلمات کلیدی
باتری آلومینیوم، باتری های سولفور، مایعات یونی، باتری های با انرژی بالا
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی


• A Novel Al–S is described, employing low cost and abundant materials.
• High materials utilization is achieved, leading to high energy density.
• Electrolyte content is changed, with optimized composition yielding discharge capacity of more than 1400 mAh g−1 of sulfur.

An aluminum–sulfur battery comprised of a composite sulfur cathode, aluminum anode and an ionic liquid electrolyte of AlCl3/1-ethyl-3-methylimidazolium chloride is described. The electrochemical reduction of elemental sulfur has been studied in different molar ratios of the electrolyte, and aluminum tetrachloride ions have been identified at the electroactive ionic species. The Al/S battery exhibits a discharge voltage plateau of 1.1–1.2 V, with extremely high charge storage capacity of more than 1500 mAh g−1, relative to the mass of sulfur in the cathode. The energy density of the Al/S cell is estimated to be 1700 Wh kg−1 sulfur, which is competitive with the most attractive battery chemistries targeted for high-energy electrochemical storage. Characterization by means of SEM, XRD and XPS of the battery components reveal complete dissolution of sulfur-based discharge products to the electrolyte. The low cost, natural abundance and high volumetric energy density of both anode and cathode materials define a research path for new materials and cell designs for next-generation Al/S battery systems.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 283, 1 June 2015, Pages 416–422
نویسندگان
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