کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7730049 1497931 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reduction mechanism of sulfur in lithium-sulfur battery: From elemental sulfur to polysulfide
ترجمه فارسی عنوان
مکانیزم کاهش گوگرد در باتری لیتیوم گوگرد: از گوگرد عنصری به پلی سولفید
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
The polysulfide ions formed during the first reduction wave of sulfur in Li-S battery were determined through both in-situ and ex-situ derivatization of polysulfides. By comparing the cyclic voltammetric results with and without the derivatization reagent (methyl triflate) as well as the in-situ and ex-situ derivatization results under potentiostatic condition, in-situ derivatization was found to be more appropriate than its ex-situ counterpart, since subsequent fast chemical reactions between the polysulfides and sulfur may occur during the timeframe of ex-situ procedures. It was found that the major polysulfide ions formed at the first reduction wave of elemental sulfur were the S42− and S52− species, while the widely accepted reduction products of S82− and S62− for the first reduction wave were in low abundance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 301, 1 January 2016, Pages 312-316
نویسندگان
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