کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11008098 | 1840480 | 2019 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Composite electrolytes of pyrrolidone-derivatives-PEO enable to enhance performance of all solid state lithium-ion batteries
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Composite electrolytes of pyrrolidone-derivatives-PEO enable to enhance performance of all solid state lithium-ion batteries Composite electrolytes of pyrrolidone-derivatives-PEO enable to enhance performance of all solid state lithium-ion batteries](/preview/png/11008098.png)
چکیده انگلیسی
All-solid-state batteries with LiFePO4 cathodes and polyethylene oxide (PEO) based electrolytes are optimized with organic polymer synthesized from allyl amine and tartaric acid which show better properties including ionic conductivity, electrochemical window, charge-discharge capacity and rate performance. The rate of PEO (MW¯= 4,000,000) and lithium salt (Lithium bis(trifluoromethanesulphonyl)imide, LiTFSI) is 75:20 (w/w) and polymers of different molecular weight are tested at a wide temperature range from 27â¯Â°C (ambient temperature) to 120â¯Â°C. Electrolytes with larger amount (weighting more than half of PEO) of low-molecular-weight polymer show conductivity of above 10â4â¯Sâ¯cmâ1, which is similar to typical gel-polymer-electrolyte. Electrolytes made of high-molecular-weight dopant, PEO and LiTFSI through ball milling show better conductivity (5.4â¯Ãâ¯10â6â¯Sâ¯cmâ1) as well as better strength than electrolytes without dopant (1.3â¯Ãâ¯10â6â¯Sâ¯cmâ1) at room temperature. And a sensitive dependence on temperature increasing is also observed constructing to the sample without dopant. Stability below 120â¯Â°C also indicates promising use of this composite electrolyte in solid state lithium ion batteries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 293, 10 January 2019, Pages 25-29
Journal: Electrochimica Acta - Volume 293, 10 January 2019, Pages 25-29
نویسندگان
Xin Li, Zijian Wang, Hai Lin, Yidong Liu, Yong Min, Feng Pan,