High-energy silicon-sulfurized poly(acrylonitrile) battery based on a nitrogen evolution reaction.

The practical application of high-energy lithium-sulfur battery is plagued with two deadly obstacles. One is the "shuttle effect" originated from the sulfur cathode, and the other is the low Coulombic efficiency and security issues arising from the lithium metal anode. In addressing these issues, we propose a novel silicon-sulfurized poly(acrylonitrile) full battery.

Renewable Polysulfide Regulation by Versatile Films toward High-Loading Lithium-Sulfur Batteries.

The development of a high specific energy lithium-sulfur battery is heavily hindered by the so-called "shuttle effect". Nevertheless, as an effective strategy, most modified separators cannot block and reuse polysulfides simultaneously. Here, a unique and versatile film fabricated by nitrogen and phosphorus co-doped carbon nanofibers uniformly anchored with TiC nanoparticles is incorporated between the separator and cathode of the lithium-sulfur battery.

Oxygen-Deficient Ferric Oxide as an Electrochemical Cathode Catalyst for High-Energy Lithium-Sulfur Batteries.

Lithium-sulfur batteries, as one of promising next-generation energy storage devices, hold great potential to meet the demands of electric vehicles and grids due to their high specific energy. However, the sluggish kinetics and the inevitable "shuttle effect" severely limit the practical application of this technology. Recently, design of composite cathode with effective catalysts has been reported as an essential way to overcome these issues.

Rational Design of a Gel-Polymer-Inorganic Separator with Uniform Lithium-Ion Deposition for Highly Stable Lithium-Sulfur Batteries.

Lithium-sulfur (Li-S) batteries have received intense interest as next-generation electrochemical energy storage systems because of their high specific energy and natural abundance potential. However, its practical reality is seriously limited by the safety concerns from heterogeneous lithium deposition and the so-called "shuttle effect". Herein, this work reports a novel gel-polymer-inorganic separator specifically for the lithium-sulfur battery, which could enable homogeneous lithium deposition and inhibit the diffusion of polysulfides, simultaneously.