{"id":5442,"date":"2018-05-12T14:08:41","date_gmt":"2018-05-12T06:08:41","guid":{"rendered":"https:\/\/battery9999.com\/%e5%b0%87%e5%a5%88%e7%b1%b3%e7%b7%9a%e6%b7%bb%e5%85%a5%e5%9b%ba%e6%85%8b%e9%9b%bb%e8%a7%a3%e8%b3%aa%ef%bc%8c%e9%99%8d%e4%bd%8e%e9%8b%b0%e9%9b%a2%e5%ad%90%e9%9b%bb%e6%b1%a0%e6%98%93%e7%87%83%e6%80%a7\/"},"modified":"2018-06-08T13:51:13","modified_gmt":"2018-06-08T05:51:13","slug":"%e5%b0%87%e5%a5%88%e7%b1%b3%e7%b7%9a%e6%b7%bb%e5%85%a5%e5%9b%ba%e6%85%8b%e9%9b%bb%e8%a7%a3%e8%b3%aa%ef%bc%8c%e9%99%8d%e4%bd%8e%e9%8b%b0%e9%9b%a2%e5%ad%90%e9%9b%bb%e6%b1%a0%e6%98%93%e7%87%83%e6%80%a7","status":"publish","type":"post","link":"https:\/\/battery9999.com\/en\/%e5%b0%87%e5%a5%88%e7%b1%b3%e7%b7%9a%e6%b7%bb%e5%85%a5%e5%9b%ba%e6%85%8b%e9%9b%bb%e8%a7%a3%e8%b3%aa%ef%bc%8c%e9%99%8d%e4%bd%8e%e9%8b%b0%e9%9b%a2%e5%ad%90%e9%9b%bb%e6%b1%a0%e6%98%93%e7%87%83%e6%80%a7\/","title":{"rendered":"Mg2B2O5 Nanowire Enabled Multifunctional Solid-State Electrolytes with High Ionic Conductivity, Excellent Mechanical Properties, and Flame-Retardant Performance"},"content":{"rendered":"

The author<\/span>\u00a0EnergyTrend<\/a><\/span> | Publication Date (Web): April 25, 2018<\/p>\n

\"\"<\/span><\/p>\n

First map source<\/span>\uff1apixabay<\/a><\/span><\/span><\/span><\/p>\n

\"Abstract<\/p>\n

High ionic conductivity, satisfactory mechanical properties, and wide electrochemical windows are crucial factors for composite electrolytes employed in solid-state lithium-ion batteries (SSLIBs). Based on these considerations, we fabricate Mg2<\/sub>B2<\/sub>O5<\/sub> nanowire enabled poly(ethylene oxide) (PEO)-based solid-state electrolytes (SSEs). Notably, these SSEs have enhanced ionic conductivity and a large electrochemical window. The elevated ionic conductivity is attributed to the improved motion of PEO chains and the increased Li migrating pathway on the interface between Mg2<\/sub>B2<\/sub>O5<\/sub> and PEO-LiTFSI. Moreover, the interaction between Mg2<\/sub>B2<\/sub>O5<\/sub> and \u2212SO2<\/sub>\u2212 in TFSI\u2013<\/sup> anions could also benefit the improvement of conductivity. In addition, the SSEs containing Mg2<\/sub>B2<\/sub>O5<\/sub> nanowires exhibit improved the mechanical properties and flame-retardant performance, which are all superior to the pristine PEO-LiTFSI electrolyte. When these multifunctional SSEs are paired with LiFePO4<\/sub> cathodes and lithium metal anodes, the SSLIBs show better rate performance and higher cyclic capacity of 150, 106, and 50 mAh g\u20131<\/sup> under 0.2 C at 50, 40, and 30 \u00b0C. This strategy of employing Mg2<\/sub>B2<\/sub>O5<\/sub> nanowires provides the design guidelines of assembling multifunctional SSLIBs with high ionic conductivity, excellent mechanical properties, and flame-retardant performance at the same time.<\/p>\n