Van Humbeck Jeffrey F, Aubrey Michael L, Alsbaiee Alaaeddin, Ameloot Rob, Coates Geoffrey W, Dichtel William R, Long Jeffrey R
Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts , USA 02139.
Department of Chemistry , University of California , Berkeley , California , USA 94720-1462 . Email:
Chem Sci. 2015 Oct 1;6(10):5499-5505. doi: 10.1039/c5sc02052b. Epub 2015 Jun 23.
A new family of solid polymer electrolytes based upon anionic tetrakis(phenyl)borate tetrahedral nodes and linear bis-alkyne linkers is reported. Sonogashira polymerizations using tetrakis(4-iodophenyl)borate, tetrakis(4-iodo-2,3,5,6-tetrafluorophenyl)borate and tetrakis(4-bromo-2,3,5,6-tetrafluorophenyl)borate delivered highly cross-linked polymer networks with both 1,4-diethynylbeznene and a tri(ethylene glycol) substituted derivative. Promising initial conductivity metrics have been observed, including high room temperature conductivities (up to 2.7 × 10 S cm), moderate activation energies (0.25-0.28 eV), and high lithium ion transport numbers (up to = 0.93). Initial investigations into the effects of important materials parameters such as bulk morphology, porosity, fluorination, and other chemical modification, provide starting design parameters for further development of this new class of solid electrolytes.
报道了一种基于阴离子四（苯基）硼酸四面体节点和线性双炔连接体的新型固体聚合物电解质家族。使用四（4-碘苯基）硼酸、四（4-碘-2,3,5,6-四氟苯基）硼酸和四（4-溴-2,3,5,6-四氟苯基）硼酸进行的Sonogashira聚合反应，得到了具有1,4-二乙炔基苯和三（乙二醇）取代衍生物的高度交联聚合物网络。已观察到有前景的初始电导率指标，包括高室温电导率（高达2.7×10 S cm）、适中的活化能（0.25 - 0.28 eV）和高锂离子迁移数（高达 = 0.93）。对诸如本体形态、孔隙率、氟化和其他化学改性等重要材料参数影响的初步研究，为这类新型固体电解质的进一步开发提供了起始设计参数。
