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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >A sulfonimide-based alternating copolymer as a single-ion polymer electrolyte for high-performance lithium-ion batteries
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A sulfonimide-based alternating copolymer as a single-ion polymer electrolyte for high-performance lithium-ion batteries

机译：基于磺酰亚胺的交替共聚物作为高性能锂离子电池的单离子聚合物电解质

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For the next generation of lithium-ion batteries (LIBs), single Li-ion polymer electrolytes (SPEs) are widely considered an effective substitute to traditional dual-ion electrolytes, due to their ability to restrain the salt concentration gradient and the polarization loss in the cells. A new single-ion conductor with an alternating structure is synthesized by the simple radical copolymerization of lithium 4-styrenesulfonyl(phenyl-sulfonyl)imide and maleic anhydride. Its SPE membrane composite with poly(vinylidene fluoride-co-hexafluoropropylene) exhibits both high lithium ion conductivity (sigma(Li+) = 2.67 mS cm(-1)) and transference number (t(Li+) = 0.98). The full cell with the prepared SPE sandwiched between a LiFePO4 cathode and a Li4Ti5O12 anode shows good cycling stability and rate capability. These results suggest that this novel electrolyte is promising for application in next-generation LIBs.
机译：对于下一代锂离子电池（LIBS），由于其抑制盐浓度梯度和极化损失的能力，单锂离子聚合物电解质（SPE）被广泛地认为是对传统双离子电解质的有效替代品。 细胞。 通过锂4-苯乙烯磺酰基（苯基 - 磺酰基）酰亚胺和马来酸酐的简单自由基共聚合，合成具有交替结构的新的单离子导体。 其具有聚（氟乙烯 - 共六氟丙烯）的SPE膜复合材料具有高锂离子传导性（Sigma（Li +）= 2.67ms cm（-1））和转移数（T（Li +）= 0.98）。 具有制备的SPE的全细胞夹在LiFePO4阴极和Li4Ti5O12阳极之间，显示出良好的循环稳定性和速率能力。 这些结果表明，这种新颖的电解质在下一代Libs中具有申请。

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