کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
632665 1456002 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Composite electrolyte membranes incorporating viscous copolymers with cellulose for high performance lithium-ion batteries
ترجمه فارسی عنوان
غشاء الکترولیتی کامپوزیتی با استفاده از کوپلیمرهای چسبناک با سلولز برای باتری های باتری لیتیوم یون
کلمات کلیدی
باتری های لیتیوم یون، غشای الکترولیتی کامپوزیتی، پلی اتیلن اکسید، تماس میان فاز عملکرد دوچرخه سواری
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی


• A novel composite electrolyte membrane, consisting of a viscous PEGMEM-co-SMA copolymer, lithium salt and cellulose matrix, has been prepared as a new class of electrolyte for high performance lithium-ion batteries.
• The composite electrolyte membrane exhibits a wide electrochemical stability window (>5 V vs. Li/Li+) and improved thermal stability up to 315 °C.
• The interfacial resistance (Rintf ) of the fresh cell based on this composite electrolyte membrane is extremely low (3.8 Ω cm−2) owing to the viscous flow state of the PEGMEM-co-SMA copolymer at 80 °C.
• The Li/LiFePO4 cells based on this composite electrolyte membrane deliver a discharge capacity as high as 156.9 mAh g−1 with a current density of 1 C at 80 °C.

A novel composite electrolyte membrane (CEM), consisting of a viscous PEGMEM-co-SMA copolymer, lithium salt and cellulose matrix, has been prepared as a new class of electrolyte for high performance lithium-ion batteries (LIBs). This CEM exhibits a wide electrochemical stability window (>5 V vs. Li/Li+), reasonably high ionic conductivity and thermal stability up to 315 °C. At temperature above the melting temperature (31.98–35.71 °C), the viscous flow nature of the copolymer is beneficial to fully infiltrate the electrode materials like liquid electrolyte to maintain uniform contact with electrode surfaces during charge/discharge process. The interfacial resistance (Rintf ) of the fresh cell based on this CEM is extremely low (3.8 Ω cm−2) and the Li/LiFePO4 cell deliveries a discharge capacity as high as 156.9 mA h g−1 with a current density of 1 C at 80 °C. It is anticipated that this work provides a new insight for designing advanced electrolyte materials for LIBs with enhanced interfacial contact and excellent cycling performance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 497, 1 January 2016, Pages 259–269
نویسندگان
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