کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1293693 973559 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical characteristics of aluminum sulfide for use in lithium secondary batteries
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Electrochemical characteristics of aluminum sulfide for use in lithium secondary batteries
چکیده انگلیسی

In our effect to develop a lithium secondary battery with high energy density, aluminum sulfide (Al2S3) was studied for use as an active material. The measured initial discharge capacity of Al2S3 was ca. 1170 mAh g−1 at 100 mA g−1. This corresponds to 62% of the theoretical capacity for the sulfide. Al2S3 exhibited poor capacity retention in the potential range between 0.01 V and 2.0 V, mainly due to the structural irreversibility of the charge process or Li extraction. XRD and Al and S K-XANES analyses indicated that the surface of Al2S3 reacts reversibly during charge and discharge processes, while the core of Al2S3 showed structural irreversibility because LiAl and Li2S were formed from Al2S3 at the initial discharge and remained as they were afterward.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 195, Issue 24, 15 December 2010, Pages 8327–8330
نویسندگان
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