超级电容器
电容
化学
纳米复合材料
储能
电解质
阳极
电流密度
制作
功率密度
纳米技术
电极
化学工程
材料科学
功率(物理)
工程类
物理
病理
物理化学
医学
量子力学
替代医学
作者
Guocai Xiao,Jincheng Fan,Hongwei Liao,Shanqiang Gao,Chaoqun Niu,Hong‐Guang Jin,Wenbin Luo,Zi‐Sheng Chao
标识
DOI:10.1016/j.jelechem.2023.117154
摘要
In the study, Co3S4/[email protected] nanocomposites were successfully synthesized on nickel foam (NF) by a simple and cost-effective hydrothermal method. The supercapacitors with Co3S4/[email protected] as electrode materials exhibited an ultra-high specific capacitance of 3480.0F g−1 at a current density of 1 A/g. Co3S4/[email protected]//activated carbon (AC) all-solid-state asymmetric supercapacitor (ASS) was assembled with PVA/KOH as the electrolyte. The ASS device exhibits excellent cycling stability of 77.97 % capacitance retention after 5000 cycles at 10 A/g. The maxmum energy density of Co3S4/[email protected]//AC ASS was 275.2 Wh kg−1, with the power density of 5760 W kg−1. Especially, the ASS devices connected in different manners presented the typical performances of integrated circuits: voltage enhancement for series devices and current enhancement for parallel devices. Therefore, the study presented great practical potentials for new energy storage devices in integrated circuits.
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