High-Capacity NASICON-Type NaVCr(PO) Cathode for High-Performance Sodium-Ion Batteries.

NaV(PO) (NVP) has been deemed a promising cathode material for sodium-ion batteries (SIBs). However, the low sodium-ion diffusion kinetics and inferior electronic conductivity of NVP are two major bottlenecks facing its practical application. Realizing multielectron redox reactions in NVP by a doping strategy is very efficient to enhance electronic conductivity and specific capacity, as well as ensuring structural stability of NVP.

Optimization Strategies of NaV(PO) Cathode Materials for Sodium-Ion Batteries.

NaV(PO) (NVP) has garnered great attentions as a prospective cathode material for sodium-ion batteries (SIBs) by virtue of its decent theoretical capacity, superior ion conductivity and high structural stability. However, the inherently poor electronic conductivity and sluggish sodium-ion diffusion kinetics of NVP material give rise to inferior rate performance and unsatisfactory energy density, which strictly confine its further application in SIBs. Thus, it is of significance to boost the sodium storage performance of NVP cathode material.

Exploration of electrochemical behavior of Sb-based porous carbon composites anode for sodium-ion batteries.

Sb-based materials are considered as promising anode materials for sodium-ion batteries (SIBs) due to their excellent sodium storage capacities and suitable potentials. However, the Sb-based anodes usually suffer from intense volume expansion and severe pulverization during the alloying-dealloying process, resulting in poor cycling performance. Herein, a composite anode with Sb/SbO nanoparticles embedded in N-doped porous carbon is prepared by the gas-solid dual template method.

Effect and Mechanism of Soluble Starch on Bovine Serum Albumin Cold-Set Gel Induced by Microbial Transglutaminase: A Significantly Improved Carrier for Active Substances.

Soluble starch (SS) could significantly accelerate the process of bovine serum albumin (BSA) cold-set gelation by glucono-δ-lactone (GDL) and microbial transglutaminase (MTGase) coupling inducers, and enhance the mechanical properties. Hardness, WHC, loss modulus (G″) and storage modulus (G') of the gel increased significantly, along with the addition of SS, and gelation time was also shortened from 41 min (SS free) to 9 min (containing 4.0% SS); the microstructure also became more and more dense.

Advances in Mn-Based Electrode Materials for Aqueous Sodium-Ion Batteries.

Aqueous sodium-ion batteries have attracted extensive attention for large-scale energy storage applications, due to abundant sodium resources, low cost, intrinsic safety of aqueous electrolytes and eco-friendliness. The electrochemical performance of aqueous sodium-ion batteries is affected by the properties of electrode materials and electrolytes. Among various electrode materials, Mn-based electrode materials have attracted tremendous attention because of the abundance of Mn, low cost, nontoxicity, eco-friendliness and interesting electrochemical performance.

A new sodiation-desodiation mechanism of the titania-based negative electrode for sodium-ion batteries.

TiO is widely investigated as a negative electrode for lithium-ion batteries. In sodium-ion batteries, however, the sodiation-desodiation mechanism of TiO is still unclear. Here, we report a new sodiation-desodiation mechanism for an anatase TiO/C electrode in an ionic liquid electrolyte at 90 °C, where it shows a high reversible capacity of 278 mA h g.