• 3D Zn-doped CuO framework was designed for aligned distributing high mass loading of MnO₂ nanosheets.

• Zn could be introduced into the CuO crystal lattice to tune the covalency character and thus improve charge transport.

• A free-standing asymmetric coaxial fiber-shaped supercapacitor based on Zn–CuO@MnO₂ core electrode possesses superior performance including higher capacity and better stability under deformation.

中文翻译：

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3D 导电框架的原子调制提高了 MnO 2 用于同轴纤维形超级电容器的性能

• 3D Zn 掺杂CuO 框架设计用于对齐分布高质量负载的MnO ₂纳米片。

• Zn 可以被引入到 CuO 晶格中以调节共价特性，从而改善电荷传输。

• 基于Zn-CuO@MnO ₂芯电极的自支撑非对称同轴纤维状超级电容器具有优异的性能，包括更高的容量和更好的变形稳定性。