Ionogel electrolytes present several benefits for solid-state lithium-ion batteries including nonflammability, favorable electrochemical properties, and high thermal stability. However, limited processing methods are currently available for ionogel electrolytes, restricting their practical applications. Here, we present a screen-printable ionogel electrolyte formulation based on hexagonal boron nitride (hBN) nanoplatelets. To achieve screen-printable rheological properties, hBN nanoplatelets are mixed with an imidazolium ionic liquid in ethyl lactate. Following screen printing, the resulting spatially uniform and mechanically flexible hBN ionogel electrolytes achieve high room-temperature ionic conductivities >1 mS cm^–1 and stiff mechanical moduli >1 MPa. These hBN ionogel electrolytes enable the fabrication of fully screen-printed lithium-ion batteries with high cycling stability, rate performance, and mechanical resilience against flexion and external forces, thus providing a robust energy storage solution that is compatible with scalable additive manufacturing.

中文翻译：

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用于可机械变形固态锂离子电池的丝网印刷六方氮化硼离子凝胶电解质

离子凝胶电解质为固态锂离子电池提供了多种优势，包括不易燃性、良好的电化学性能和高热稳定性。然而，目前可用于离子凝胶电解质的加工方法有限，限制了它们的实际应用。在这里，我们提出了一种基于六方氮化硼 (hBN) 纳米片的可丝网印刷离子凝胶电解质配方。为了实现可丝网印刷的流变特性，hBN 纳米片与咪唑离子液体在乳酸乙酯中混合。^{丝网印刷后，得到的空间均匀且机械灵活的 hBN 离子凝胶电解质可实现 >1 mS cm –1}的高室温离子电导率刚性机械模量>1 MPa。这些 hBN 离子凝胶电解质能够制造具有高循环稳定性、倍率性能以及对弯曲和外力的机械弹性的全丝网印刷锂离子电池，从而提供与可扩展增材制造兼容的强大储能解决方案。