LDH-based supercapacitor composite electrode material and preparation method and application thereof

摘要: The invention discloses an LDH-based supercapacitor composite electrode material and preparation method application thereof. comprises the steps of firstly, preparing to obtain a MnCo-LDH nanowire array taking nickel foam as substrate by hydrothermal method; secondly, preparaing MnCo LDH/C rough calcination carbonization; thirdly, combining NiMn-LDH nanosheet MnCo-LDH/C form three-dimensional core-shell structure in-situ growth method. Compared with other nanometer structures such nanoparticle, formed is beneficial for fully developing electrochemical activity. When used material, can be pseudocapacitance has relatively high specific capacity rate charge-discharge performance; meanwhile, also positive device energy density.