Knowledge Management System Of Institute of process engineering,CAS
| Fast Li-ion transport and uniform Li-ion flux enabled by a double-layered polymer electrolyte for high performance Li metal battery | |
| Wen, Kaihua1,2; Tan, Xin1; Chen, Tianhua3; Chen, Shimou1; Zhang, Suojiang1 | |
| 2020-11-01 | |
| Source Publication | ENERGY STORAGE MATERIALS
 |
| ISSN | 2405-8297 |
| Volume | 32Pages:55-64 |
| Abstract | Polymer-based lithium metal batteries are considered to be one of the most promising Li-based energy storage systems for portable devices and flexible technologies. However, low ionic conductivity of polymer electrolytes and poor compatibility in electrode-electrolyte interfaces restrict the wide applications of polymer-based lithium metal batteries. Here we report a novel polycarbonate-polyethylene oxide based polymer electrolyte with a double layered structure to achieve fast Li-ion conduction and uniform Li-ion flux. Comprehensive experiments and simulations show the ion-dipolar pair of [C=O center dot center dot center dot Li+] is the main reason for Li+ conduction, and the balances of coupling/decoupling in Li+center dot center dot center dot TESI- and Li+center dot center dot center dot PAN/PVEC synergistically facilitate a fast Li+ transport on the cathode side, which results in high Li+ transference number (0.602) and high ionic conductivity (1.56 x 10(-4) S cm(-1), 20 degrees C) of DLPE. Besides, uniform Li+ flux in PEGDMA-SiO2-Pyr(14)TSFI achieves stable Li/electrolyte interface rich in LiF and Li3N on the anode side. Benefit from this design, the DLPE-based LiFePO4 and LiNi0.8Co0.1Mn0.1O2 battery deliver high safety and high stable performances under various extreme conditions. |
| Keyword | Poly (vinylethylene carbonate) Polymer electrolyte Double-layered Stability Lithium metal battery |
| DOI | 10.1016/j.ensm.2020.07.037 |
| Language | 英语 |
| WOS Keyword | SOLID-STATE ; LITHIUM BATTERIES ; LIQUID ; SUCCINONITRILE |
| Funding Project | National Key Projects for Fundamental Research and Development of China[2016YFB0100104] ; National Natural Science Foundation of China[51922099] ; National Natural Science Foundation of China[21890762] |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| Funding Organization | National Key Projects for Fundamental Research and Development of China ; National Natural Science Foundation of China |
| WOS ID | WOS:000577179100007 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/42485 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Chen, Shimou |
| Affiliation | 1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn, State Key Lab Multiphase Complex Syst,Inst Proc E, Beijing 100190, Peoples R China 2.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China 3.Univ Adelaide, Sch Chem Engn & Adv Mat, Adelaide, SA 5005, Australia |
| Recommended Citation GB/T 7714 | Wen, Kaihua,Tan, Xin,Chen, Tianhua,et al. Fast Li-ion transport and uniform Li-ion flux enabled by a double-layered polymer electrolyte for high performance Li metal battery[J]. ENERGY STORAGE MATERIALS,2020,32:55-64. |
| APA | Wen, Kaihua,Tan, Xin,Chen, Tianhua,Chen, Shimou,&Zhang, Suojiang.(2020).Fast Li-ion transport and uniform Li-ion flux enabled by a double-layered polymer electrolyte for high performance Li metal battery.ENERGY STORAGE MATERIALS,32,55-64. |
| MLA | Wen, Kaihua,et al."Fast Li-ion transport and uniform Li-ion flux enabled by a double-layered polymer electrolyte for high performance Li metal battery".ENERGY STORAGE MATERIALS 32(2020):55-64. |
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