Zn-based aqueous batteries become a highlighted field in worldwide research on rechargeable energy storage systems due to their significant merits as safe and cost-effective technology. However, the lack of proper cathode materials having sufficient accessible channels for ionic diffusion in order to achieve excellent power delivery, higher energy storage capacity and good cycle stability challenge their use in practical application. Herein, we demonstrate electrodeposited porous Ni₃P superstructures on activated carbon cloth (CC*) as a robust cathode material towards enhanced Ni–Zn aqueous battery technology. The as-deposited Ni₃P exhibiting internal porous network with fully exposed active sites accelerates the electrode kinetics by providing affluent channels for electron transfer. This unique structure of Ni₃P electrode offers remarkable specific capacity of 258 mA h g⁻¹ along with tremendous high-rate capability (maintains 81% at 11 A g⁻¹). Moreover, the Ni₃P@CC*//Zn@CC* battery is capable of showing a record-high specific capacity of 322 mA h g⁻¹, power density 17.5 kW kg⁻¹ and imposing energy density of 661.98 Wh kg⁻¹. These results open a new avenue for developing an easy synthesis strategy for cathode materials of Ni–Zn batteries with boosted electrochemical activity toward affordable and practical energy storage.© 2017 Elsevier Inc. All rights reserved.

锌基水系电池因其作为安全和成本效益技术的显着优点而成为全球可充电储能系统研究的一个突出领域。然而，缺乏合适的阴极材料具有足够的离子扩散通道以实现出色的功率传输、更高的储能容量和良好的循环稳定性，这对其在实际应用中的应用提出了挑战。在此，我们展示了在活性炭布 (CC*) 上电沉积的多孔 Ni ₃ P 超结构作为增强型 Ni-Zn 水性电池技术的稳健正极材料。沉积态的 Ni ₃P 表现出具有完全暴露的活性位点的内部多孔网络，通过为电子转移提供丰富的通道来加速电极动力学。Ni ₃ P 电极的这种独特结构提供了卓越的 258 mA hg ^-1比容量以及巨大的高倍率能力（在 11 A g ^{-1 时}保持 81% ）。此外，Ni ₃ P@CC*//Zn@CC*电池能够表现出创纪录的322 mA hg ^-1比容量、17.5 kW kg ^{-1 的}功率密度和661.98 Wh kg ^{-1 的}能量密度. 这些结果为开发 Ni-Zn 电池正极材料的简单合成策略开辟了一条新途径，可提高电化学活性，实现经济实惠且实用的储能。© 2017 Elsevier Inc. 保留所有权利。