کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1283912 1497940 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrospun polyacrylonitrile microfiber separators for ionic liquid electrolytes in Li-ion batteries
ترجمه فارسی عنوان
جداسازهای میکرو فیبر الکترو اسپین پلی اکریلنیتیل برای الکترولیت های مایع یونی در باتری های لیتیوم یون
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی


• Electrospun PAN microfiber mats are compatible with RTIL electrolytes.
• PAN microfiber mats show adequate mechanical properties and high wettabilities.
• PAN microfiber separators allow for high electrochemical performance in Li-ion cells.

Despite much recent progress in the development of room temperature ionic liquid (RTIL) electrolytes for lithium-ion batteries (LIBs), relatively little work has been done in terms of investigating commercially applicable separator materials capable of accommodating RTILs. In this work, we demonstrate an electrospun polyacrylonitrile (PAN) microfiber separator. The PAN microfiber separators show high degrees of porosity (∼83%), wettability, and mechanical strength (σUTS = 16.98 MPa and E = 5.95 MPa). The physical properties of our electrospun separators lead to impressive electrochemical performance, showing an apparent MacMullin number (NM) of <5 when combined with the PYR13FSI (1.2M LiFSI) electrolyte. These results are validated by superior rate performance and the exhibition of a high capacity full-cell utilizing a PAN microfiber separator in combination with the PYR13FSI (1.2M LiFSI) RTIL electrolyte. Such work represents significant progress in the advancement of RTIL electrolytes for LIBs, indicating that nonwoven separators are a commercially viable solution to the previous lack of separator materials for RTIL electrolytes.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 292, 1 October 2015, Pages 1–6
نویسندگان
, , , ,