One-step electrodeposited MoS2@Ni-mesh electrode for flexible and transparent asymmetric solid-state supercapacitors,Journal of Materials Chemistry A

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One-step electrodeposited MoS2@Ni-mesh electrode for flexible and transparent asymmetric solid-state supercapacitors
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2020-10-21 , DOI: 10.1039/d0ta07764j
Bobby Singh Soram _{1,

2,

3,

4} , Jiu Yi Dai _{1,

2,

3,

4} , Ibomcha Singh Thangjam _{1,

2,

3,

4} , Nam Hoon Kim _{1,

2,

3,

4} , Joong Hee Lee _{1,

2,

3,

4,

5}

Affiliation

Transparent and flexible energy-storage devices have currently gained a lot of attention as wearable and portable electronics. Herein, we develop a one-step electrodeposited MoS₂ nanosheet@Ni-mesh core–shell network nanostructure as a transparent negative electrode for the flexible and transparent asymmetric solid-state supercapacitor (FT-ASSc). In the fabricated core–shell nanosheet network architecture, the junctionless interconnected Ni-mesh network with excellent conductivity contributes to superior electron transport pathways, and the nanostructure of the MoS₂ over the Ni-mesh provides effective interface contact between the active material and current collector. As a result, the MoS₂@Ni-mesh network negative electrode provides an areal capacitance of 7.31 mF cm⁻² at the scan rate of 10 mV s⁻¹ with an 80% capacity retention rate after 5000 GCD cycles. Moreover, the fabricated FT-ASSc with a transmittance of 51% can operate up to a maximum working potential window of 1.6 V and also provide a maximum volumetric capacitance of 48.32 mF cm⁻³ at 0.4 mA cm⁻³ current density. This work might provide a new strategy for improving the electrochemical performance of transparent and flexible energy-storage devices for next-generation integrated electronic gadgets.

中文翻译：

用于柔性和透明非对称固态超级电容器的一步式电沉积MoS2 @ Ni网状电极

透明和柔性的能量存储设备目前作为可穿戴和便携式电子设备受到了广泛的关注。在这里，我们开发了一步式电沉积MoS ₂纳米片@镍网核-壳网络纳米结构，作为柔性和透明非对称固态超级电容器（FT-ASSc）的透明负极。在预制的核-壳纳米片网络体系结构中，具有优异电导率的无结互连镍网网络有助于形成优异的电子传输路径，而覆盖镍网的MoS ₂的纳米结构可在活性材料和集电器之间提供有效的界面接触。结果，MoS ₂Ni网状网络负极在5000 GCD循环后以10 mV s ^-1的扫描速率提供7.31 mF cm ^-2的面电容，容量保持率为80％。此外，所制造的具有51％的透射率的FT-ASSc可以在高达1.6 V的最大工作电势窗口下工作，并且在0.4 mA cm ^-3的电流密度下还可以提供48.32 mF cm ^-3的最大体积电容。这项工作可能会为改善用于下一代集成电子产品的透明，柔性储能装置的电化学性能提供新的策略。

更新日期：2020-11-12

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