Polydopamine-wrapped, silicon nanoparticle-impregnated macroporous CNT particles: rational design of high-performance lithium-ion battery anodes

We present a simple but rationally designed anode composed of polydopamine-wrapped, Si nanoparticle-impregnated macroporous CNT particles for lithium-ion batteries; this anode is mass-producible and at the same time achieves an excellent capacity and its retention by effective stress relaxation and surface passivation.