Nitrogen/oxygen co-doped carbon spheres with wrinkled nanocages (NOCN) were successfully synthesized using dendritic fibrous nanosilica (DFNS) as sacrificial solid template, glucose as a carbon source, and melamine as the nitrogen source. The obtained carbon nanocages (NOCN-850-3) exhibit human brain-like winkle shape, high specific surface area (813 m² g⁻¹), high nitrogen (16.24 at%) and oxygen contents (5.36 at%). In addition, the obtained carbon presents good specific capacitance of 311.1 F g⁻¹ at a current density of 0.5 A g⁻¹ in 6 M KOH and remarkable rate performance (118.1 F g⁻¹ at a current density of 30 A g⁻¹) and cycle stability (97.6% retention after 10,000 charge–discharge performance cycles at 10 A g⁻¹). Meanwhile, the NOCN-850-3-based coin-type symmetric supercapacitor exhibits a maximum energy density of 12. 3 W h kg⁻¹ at a power density of 175 W kg⁻¹ and also a relatively low resistance in 6 M KOH aqueous electrolyte. Thus, the unique structure and nitrogen/oxygen co-doping characteristic endue the electrode material a potential application in supercapacitors.

以树枝状纤维状纳米二氧化硅（DFNS）为牺牲固体模板，葡萄糖为碳源，三聚氰胺为氮源，成功合成了具有皱纹纳米笼（NOCN）的氮/氧共掺杂碳球。获得的碳纳米笼（NOCN-850-3）表现出类似人脑的闪光形状、高比表面积（813 m ² g ^-1）、高氮（16.24 at%）和氧含量（5.36 at%）。此外，311.1 F G所得到的碳表现出良好的比电容^-1在0.5 A g的电流密度^-1在6M KOH和显着的速率性能（118.1 F G ^-1以30的电流密度A G ^-1) 和循环稳定性（在 10 A g ^{-1 下}10,000 次充放电性能循环后保留 97.6% ）。同时，基于 NOCN-850-3 的硬币型对称超级电容器在 175 W kg ^-1的功率密度下表现出 12. 3 W h kg ^-1的最大能量密度，并且在 6 M KOH 水溶液中具有相对较低的电阻电解质。因此，独特的结构和氮/氧共掺杂特性赋予电极材料在超级电容器中的潜在应用。