Abstract In this work, a facile synthesis method of silicon/reduced graphene oxide composite (SRC) for lithium ion battery (LIB) production using silicon particles recycled from photovoltaic industrial waste sludge is demonstrated. The surfactant assisted self-assembly is effective in synthesizing homogeneous SRC. The SRC from recycled Si presents a high initial capacity of 1480 mAh g−1 at a current density of 100 mA g−1 with stable capacity retention of 65% after 50 cycles at a current density of 200 mA g−1. The rate capability tests show prospective performances of 962 and 623 mAh g−1 at current density of 500 mA g−1 and 2 A g−1, respectively. The high rate capability is attributed to the direct connection of rGO nanosheets on the surface of Si nanoparticles (NPs). This facile surfactant assisted self-assembly synthesis presented in this study is an unprecedented verification of Si particle recycling from industrial waste for lithium rechargeable battery production.

中文翻译：

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从工业废料中回收的 Si 颗粒在 Si/rGO 电极组合物中的应用在锂充电电池生产中的应用

摘要 在这项工作中，展示了一种使用从光伏工业废污泥中回收的硅颗粒的用于锂离子电池 (LIB) 生产的硅/还原氧化石墨烯复合材料 (SRC) 的简便合成方法。表面活性剂辅助自组装可有效合成均匀的 SRC。来自回收硅的 SRC 在 100 mA g-1 的电流密度下具有 1480 mAh g-1 的高初始容量，在 200 mA g-1 的电流密度下循环 50 次后容量保持率为 65%。倍率性能测试显示，在 500 mA g-1 和 2 A g-1 的电流密度下，预期性能分别为 962 和 623 mAh g-1。高倍率能力归因于 rGO 纳米片在 Si 纳米粒子 (NPs) 表面的直接连接。