Nickel nanoparticles embedded N-doped mesoporous graphitized carbon nanoflake as multifunctional sulfur host for high-performance lithium-sulfur batteries

Coordinating Interface Polymerization with Micelle Mediated Assembly Towards Two‐Dimensional Mesoporous Carbon/CoNi for Advanced Lithium–Sulfur Battery

“…[14] In principle, a desirable host materials should meet these requirements: 1) highly conductive framework to facilitate electron transportation; 2) porous structure with high surface area to accommodate sulfur with high capacity and simultaneously buffer volume expansion in the charge-discharge process; 3) short pore channel distance to promote the lithium ion migration and facilitate the subsequent reaction with S; 4) relative strong interface interaction between polysulfides and host materials to decrease the LiPSs dissolution; 5) abundant and highly active catalytic sites to accelerate the conversion kinetic of polysulfides and prevent the LiPSs shuttle effect. [15][16][17][18][19] Tremendous numbers of host materials have been developed, such as carbon materials, [20][21][22] metal-sulfur nanocomposites, [23,24] metal covalent organic frameworks, [25,26] metal sulfides, [27] phosphides [28] and oxides, [29] but it remains challenging to integrate all these aspects into one brilliant host.…”