Abstract Hierarchical urchin-like Fe2O3 structures were grown on conductive Ti foil with robust adhesion via a facile two-step solvothermal method and subsequent annealing, and directly used as a binder-free lithium-ion battery anode Benefitting by the unique structural features, the resultant Fe2O3 hierarchical structures exhibited excellent electrochemical performance with remarkable specific capacities at a serious of current rates 1–5 A g−1 and good cycling stability for excellently reversible lithium storage. The enhanced electrochemical performance demonstrates their promise for use as integrated binder-free electrodes in lithium-ion batteries. Using this additive/binder-free electrode, a discharge capacity as high as 581.2 mAh g−1 at a current density of 5 A g−1 was achieved after 1000 cycles. Importantly, the facile and effective strategy developed in this study can be extended to other metal oxides for various applications.

中文翻译：

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直接在钛箔上生长的分层海胆状 Fe2O3 结构，用于具有快速充电/放电特性的无粘合剂锂离子电池

摘要 通过简便的两步溶剂热法和随后的退火，在具有牢固附着力的导电钛箔上生长了分层海胆状 Fe2O3 结构，并直接用作无粘合剂的锂离子电池负极。 Fe2O3 分级结构表现出优异的电化学性能，在 1-5 A g-1 的严重电流速率下具有显着的比容量和良好的循环稳定性，可实现优异的可逆锂存储。增强的电化学性能证明了它们在锂离子电池中用作集成无粘合剂电极的前景。使用这种无添加剂/无粘合剂电极，在 1000 次循环后，在 5 A g-1 的电流密度下实现了高达 581.2 mAh g-1 的放电容量。重要的，