Transparent energy-storage devices are of enormous significance to the continued growth of flexible and wearable electronics in the foreseeable future. The development of transparent supercapacitive electrodes that possess not only high optical transmittance but also intriguing features of energy-storage capability, transferability and outstanding durability, remains a remarkable challenge. Here we demonstrate a polymer-glued strategy to fabricate the conjugated transparent hybrids of V₂O₅ and graphene, whereby the poly(3,4-ethylenedioxythiophene) (PEDOT) forms a conformal coating on the surface of V₂O₅ nanobelts and functions as a glue. Interestingly, the PEDOT-glued V₂O₅/graphene (VP-G) is easy-transferrable onto various flat and even curved substrates. When served as a transparent supercapacitive electrode, the VP-G exhibits a high areal capacitance of 22.4 mF cm⁻² at an optical transparency of 70%. As unveiled by experimental results and density functional theory (DFT) calculations, both the kinetic blocking of the PEDOT layer and the anchoring capability of graphene upon soluble vanadium ions contribute synergistically to the unusual electrochemical stability. Transparent, high-energy-density solid-state supercapacitors made of the as-fabricated hybrids are constructed, exhibiting a high energy density of 0.18 μWh cm⁻² at 11 μW cm⁻². As expected, the constructed transparent supercapacitors demonstrate an excellent cycling stability over 50 000 cycles with capacitance retention of 92.4%. These results show its great potential as promising transparent devices.

透明的储能设备对于可预见的未来柔性和可穿戴电子产品的持续发展具有极其重要的意义。透明的超电容电极的发展不仅具有高的光透射率，而且还具有储能，转移性和出色的耐用性等吸引人的特征，这仍然是一个巨大的挑战。在这里，我们展示了一种聚合物粘合的策略来制造V ₂ O ₅和石墨烯的共轭透明杂化物，从而使聚（3,4-乙撑二氧噻吩）（PEDOT）在V ₂ O ₅纳米带的表面上形成保形涂层并起作用作为胶水。有趣的是，PEDOT胶粘的V ₂ O ₅石墨烯（VP-G）易于转移到各种平坦甚至弯曲的基材上。当用作透明超级电容电极时，VP-G在70％的光学透明度下显示22.4 mF cm ^-2的高面电容。正如实验结果和密度泛函理论（DFT）计算所揭示的那样，PEDOT层的动力学阻断和石墨烯在可溶性钒离子上的锚定能力均协同促进了异常的电化学稳定性。取得的作为制造的杂化的透明的，高能量密度的固态超级电容器被构造，表现出0.18μWh厘米的高能量密度^-2在11μW厘米^-2。如预期的那样，构造的透明超级电容器在5万次循环中表现出出色的循环稳定性，电容保持率为92.4％。这些结果显示出其作为有前景的透明器件的巨大潜力。