Heterostructured Co(OH)₂/CuCo₂S₄/Ni foam electrodes are prepared by using hydrothermal deposition and electrodeposition under optimized conditions and characterized systematically. The nanostructure electrode prepared on the nickel foam provides abundant reaction sites and short diffusion paths for redox reactions and delivers high energy storage performance in supercapacitors due to the suitable mass load and unique morphology. The symmetrical supercapacitor assembled with Co(OH)₂/CuCo₂S₄ shows a high energy density of 52.2 Wh kg⁻¹ at 1236.3 Wh kg⁻¹ and maximum power density of 5530.9 Wh kg⁻¹ at 16.9 Wh kg⁻¹. The excellent properties indicate that Co(OH)₂/CuCo₂S₄ has enormous potential in multifunctional devices such as supercapacitors.

通过在最佳条件下水热沉积和电沉积制备异质结构的Co（OH）₂ / CuCo ₂ S ₄ / Ni泡沫电极，并进行系统表征。在镍泡沫上制备的纳米结构电极为氧化还原反应提供了丰富的反应部位和较短的扩散路径，并由于合适的质量负载和独特的形貌而在超级电容器中提供了高能量存储性能。对称超电容器用Co组装（OH）₂ / CUCO ₂小号₄示出了52.2瓦公斤的高能量密度^-1在1236.3瓦千克^-1和5530.9最大功率密度瓦千克^-1在16.9 Wh kg ^-1。优异的性能表明Co（OH）₂ / CuCo ₂ S ₄在多功能设备（如超级电容器）中具有巨大的潜力。