Pseudocapacitors configured with pseudocapacitive-type electrode materials have received the increasing interests due to higher specific capacitance and energy density.Developing the pseudocapacitor electrode materials with superior rate performance remains a challenge and is a key issue in the application of pseudocapacitors.In the present work, we coupled the high-oonductivity carbon nanotubes (CNYs) with high-capacitance NiCoAl-layered double hydroxides (LDH) to construct the electrode materials for the ECs.