An effective Ni(OH)2 optimization strategy via Cu2+ and Ni3+ co-doping for high capacity and long life-span lithium ion batteries

Although novel anode materials made of transition metal hydroxide can initially exhibit high capacity, their cycling performances would rapidly decline due to the poor structural stability and low electrical conductivity. Herein, we demonstrated a novel design strategy to prepare a Cu2+ and Ni3+ co-doped nickel-based layered double hydroxide (LDH) by a simple one-step co-precipitation method. The well-doped Cu2+ shortens the band gap and...