Xu Wang, Chaoyi Yan, Afriyanti Sumboja, Jian Yan and Pooi See Lee Achieving High Rate Performance in Layered Hydroxide Supercapacitor Electrodes Advanced Energy Materials 4
The electrochemically redox-active, transition-metal-containing hydroxides (Co and Ni) have high specific capacitances, which are favorable for high energy density storage. However, the intrinsic low electric conductivity restricts the performance at high power densities. Simple chemical treatment of Ni-Co-Al layered hydroxides in alkaline solution greatly enhanced the electrochemcial performance at high current densities.
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