High-performance, good stability, low-cost, and environmentally friendly batteries are important for multifunctional electronics and electric vehicles. Compared with the high-energy density lithium-ion batteries, aqueous rechargeable battery has been extensively researched due to high safety, low cost and much better rate performance. Here, we report a one-step approach to fabricate porous Ni-Cu metal–organic framework (MOF) nanosheet arrays structures for stable energy storage with a high-energy (71.2 mWh cm⁻³) and high-stability (capacity retention of ≈91% after 2,500 cycles) performance. Furthermore, we synthesized various porous homogeneous Ni-Co, Ni-Zn, Ni-Fe and Ni-Mn bimetal MOF structures with high surface area and conductivity utilizing this rational design. This work provides a simple efficient strategy for constructing porous homogeneous bimetal MOF nanosheet arrays with high energy and stability performance, holding a great potential for future portable electronics.

高性能，良好的稳定性，低成本和环保的电池对于多功能电子产品和电动汽车至关重要。与高能量密度锂离子电池相比，由于其安全性高，成本低和倍率性能好等优点，已经广泛地研究了水性可充电电池。在这里，我们报告了一种一步法来制造多孔Ni-Cu金属-有机骨架（MOF）纳米片阵列结构，以稳定的能量存储并具有高能量（71.2 mWh cm ^-3））和高稳定性（2,500个循环后的容量保持率≈91％）。此外，我们利用这种合理的设计合成了具有高表面积和导电性的各种多孔均相Ni-Co，Ni-Zn，Ni-Fe和Ni-Mn双金属MOF结构。这项工作为构建具有高能量和稳定性能的多孔均质双金属MOF纳米片阵列提供了一种简单有效的策略，为未来的便携式电子产品提供了巨大的潜力。