Sodium ion batteries (NIBs) have become attractive promising alternatives to lithium ion batteries in a broad field of future energy storage applications. The development of high‐performance anode materials has become an essential factor and a great challenge toward satisfying the requirements for NIBs, advancement. This work is the first report on GeS₂ nanocomposites uniformly distributed on reduced graphene oxide (rGO) as promising anode materials for NIBs prepared via a facile hydrothermal synthesis and a unique carbo‐thermal annealing. The results show that the GeS₂/rGO hybrid anode yields a high reversible specific capacity of 805 mA h g⁻¹ beyond the theoretical capacity, an excellent rate capability of 616 mA h g⁻¹ at 5 A g⁻¹, and a cycle retention of 89.4% after 100 cycles. A combined ex situ characterization study reveals that the electrochemically driven amorphization plays a key role in achieving efficient sodium storage by accommodating excess sodium ions in the electrode materials. Understanding the sequential conversion‐alloying reaction mechanism for GeS₂/rGO hybrid anodes provides a new approach for developing high‐performance energy storage applications.

中文翻译：

---

通过电化学驱动的非晶化技术有效地存储GeS2杂化阳极的钠盐的稳健方法

在未来的储能应用领域中，钠离子电池（NIB）已成为锂离子电池的有吸引力的有前途的替代品。高性能负极材料的开发已成为满足NIBs要求和发展的一个重要因素，也是一个巨大的挑战。这项工作是关于均匀地分布在还原性氧化石墨烯（rGO）上的GeS ₂纳米复合材料的第一份报告，作为通过简便的水热合成和独特的碳热退火制备的NIB的有希望的阳极材料。结果表明，GeS ₂ / rGO混合阳极产生的高可逆比容量为805 mA hg ^-1，超过了理论容量，在5 A g时具有极好的616 mA hg ^-1的倍率容量^-1，并且在100个循环后循环保持率为89.4％。联合的异位表征研究表明，电化学驱动的非晶化通过在电极材料中容纳过量的钠离子，在实现有效的钠存储中起着关键作用。了解GeS ₂ / rGO混合阳极的顺序转化合金反应机理为开发高性能储能应用提供了一种新方法。