Diabetes is a type of disease that threatens human health, which can be diagnosed based on the level of glucose in the blood. Recently, various MOF-based materials have been developed...

Lithium−sulfur (Li−S) batteries have been found to have sky-scraping theoretical gravimetric energy density and have gained a lot of interest. However, owing to low electrical conductivity, a conducting substance must be coupled with the sulfur cathode. The first important concern in Li−S is diffusion of lithium polysulfides (PSs), resulting in a shuttle linking both the cathode and anode and rapid capacity of degradation. Plating conventional separators is a kind of alleviation of the shuttle issue.To achieve an advanced Li−S battery, understanding of the structure of PSs needs to be considered to design efficient separator coating materials. The main object of this work is to review the most promising recent challenges and address the application of modified coatings on the polypropylene (PP), polyethylene (PE), and glass fiber (GF) separators for high-performance Li−S batteries. The particular focus has been placed on functioning of various functional layers on the surface of PP, PE, and GF, including polymers, carbons, nanomaterials, and their composites. Finally, the polar host materials in the cathode that influence the Li−S performance are summarized.

Compared to the state‐of‐art lithium‐ion batteries, the all‐solid‐state batteries offer improved safety along with high energy and power density. Although considerable research has been conducted, the inherent problems arising from solid electrolytes and the lack of suitable electrolytes hinder their development in practical applications. Furthermore, traditional synthesis routes have drawbacks due to limited control to fabricate the solid electrolytes with desired shape and size, impeding their maximum performance. In recent years, additive manufacturing or three‐dimensional (3D) printing techniques have played a vital role in constructing solid‐state batteries because of the rational design of functional electrode and electrolyte materials for batteries with increased performance. 3D printing in batteries may provide a new technology solution for existing challenges and limitations in emerging electronic applications. This process boosts lithium‐ion batteries by creating geometry‐optimized 3D electrodes. 3D printing offers a range of advantages compared to traditional manufacturing methods, including designing and printing more active and passive components (cathodes, anodes, and electrolytes) of batteries. 3D printing offers desired thickness, shape, precise control, topological optimization of complex structure and composition, and a safe approach for preparing stable solid electrolytes, cost‐effective and environmentally friendly.

We prepared a reduced graphene oxide/poly(methylene blue) composite on a glassy carbon electrode surface and electrografted dopamine onto the surface for the sensing of dopamine.

Lithium sulfur (Li-S) batteries with high theoretical energy density (∼2.5 kWh kg −1 ) and high theoretical gravimetric capacity (1672 mAh g −1 ) have drawn great attention as they are promising candidates for large-scale energy storage devices. Unfortunately, some technical obstacles hinder the practical application of Li-S batteries, such as the formation of polysulfide intermediates between the cathode and anode as well as the insulating nature of the sulfur cathode and other discharge products. Glass fiber (GF) separators provide some cavities to withstand the volume change of sulfur during cycling, leading to long-term cycling stability. Here, the application of polar materials with a novel liquid graphene oxide (L-GO) binder rather than the standard poly(vinylidene fluoride) (PVDF) binder as effective coatings on the GF separator of the Li-S cell has been developed to suppress the shuttle effect. The deposition of silicon dioxide (SiO 2 ), titanium dioxide (TiO 2 ), and poly(1,5-diaminoanthraquinone) (PDAAQ) with the L-GO binder on the GF separator was investigated with a polycarboxylate-functionalized graphene (PC-FGF/S) cathode and a Li metal anode. The cells with modified coatings and L-GO as an efficient binder could accelerate conversion of long-chain polysulfides to short-chain polysulfides and significantly suppress the polysulfide dissolution, resulting in capacity retentions of ∼1020, 1070, and 1190 mAh g −1 for the cells with SiO 2 /L-GO-, TiO 2 /L-GO-, and PDAAQ/L-GO-coated separators after 100 cycles. The results demonstrate that ultrathin SiO 2 -, TiO 2 -, and PDAAQ-containing coatings with the L-GO binder on the GF separator can drastically improve the cyclability of the Li-S cells even after a long cycling life.