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首页> 外文期刊>Journal of Applied Polymer Science >Novel approach with polyfluorene/polydisulfide copolymer binder for high-capacity silicon anode in lithium-ion batteries
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Novel approach with polyfluorene/polydisulfide copolymer binder for high-capacity silicon anode in lithium-ion batteries

机译：用于锂离子电池中高容量硅阳极的多氟/聚二硫醚共聚物粘合剂的新方法

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摘要

In this study, as a novel design with the collaboration of a fluorene and sulfide-based copolymer for Li-ion battery application is presented. Polyfluorene-co-polydisulfide is prepared with desired functional groups to yield a conductivity and good adhesion. These critical and important features are performed by preparing polymers with proper functional groups. The preparation process is accomplished via Suzuki coupling process under Pd catalyst by combining separately synthesized 4,4 '-dibromodiphenyl disulfide in combination with 9,9-dioctylfluorene-2,7-bis(trimethylborate). The fully obtained capacity of the silicon particles, that is, at C/10 with the capacity of 1250 mAh g(-1) after the 500th cycle, approves the good performance by preserving capacity stability till 600th cycles. The designed and synthesized polymer binder with different functionalities and carbon nanotube additive show better characteristics such as conductivity, high polarity, and binding adhesion. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48303.
机译：在本研究中，作为一种新颖的设计，其具有芴和硫化物基共聚物的合作，提出了锂离子电池施用。用所需的官能团制备聚芴 - 共聚二硫化物，得到导电性和良好的粘合性。通过制备具有适当官能团的聚合物来进行这些关键和重要特征。通过与9,9-二辛基氟烯-2,7-双（三甲基硼酸酯）组合将单独合成的4,4'-二溴二苯基二硫化物组合，通过Suzuki偶联方法通过Suzuki偶联方法完成制备方法。在第500次循环之后的硅颗粒的完全获得的硅颗粒的能力，即在C / 10的C / 10，通过保持容量稳定性至第600次循环来批准良好的性能。具有不同官能团和碳纳米管添加剂的设计和合成的聚合物粘合剂表现出更好的特性，例如导电，高极性和结合粘附。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,48303。

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