Browse Articles

Activating Interfacial Ion Exchange in Composite Electrolytes to Realize High‐Rate and Long‐Cycling Solid‐State Lithium Batteries

AbstractComposite solid electrolytes (CSEs) are promising candidates for solid‐state lithium metal batteries. However, the poor cross‐phase Li+ transport restricts the rate performance and cycle life of the batteries. Herein, we revealed the Li+ percolation behavior in poly(vinylidene fluoride) (PVDF)‐based CSEs with Li6.4La3Zr1.4Ta0.6O12 filler. The de‐coordination barrier from Li+ clusters determines interfacial Li+ transport capability. We then employed a designed N‐methyl‐2,2,2‐trifluoroacetamide (NMTFA) ligand to lower the de‐coordination energy and activate interfacial Li+ exchange. The ionic conductivity is therefore increased from 3.32 × 10−4 to 7.30 × 10−4 S cm−1. By tracking the 6Li and 7Li substitution process, it was identified that the proportion of interfacial Li+ transport increases from 11% to 26%. The NMTFA also contributes to the formation of inorganic‐rich interphases with electrodes. As a result, the Li||LiNi0.8Co0.1Mn0.1O2 solid‐state batteries exhibit ultra‐long lifespans of 2400, 3000, and 10 000 times at 2, 5, and 10C, respectively, as well as achieve 1000 cycles at 50 °C and 300 cycles at −30 °C. This work highlights the critical role of interfacial Li+ transport for the CSEs with “polymer‐Li+ clusters‐filler” configuration to realize high‐rate and long‐cycling solid‐state lithium batteries.

Bio‐Inspired Self‐Activating Polydimethylsiloxane‐Modified CrO_<i>x</i>/Al₂O₃ Catalyst for Acetylene Semihydrogenation

AbstractBiomimetic approach is a nature‐driven strategy for designing functional materials to meet the industrial challenges. Here we demonstrate the bio‐inspired discovery of a self‐activating catalyst, with polydimethylsiloxane anchored over the surface of CrOx/Al2O3, exhibiting comparable performance with noble metallic catalysts for acetylene semihydrogenation. In addition, the dynamic movement of polymer chains with high flexibility renders the catalyst to impose proactive perturbation to the undesired coke precursors generated in reaction, analogous to the function of hair‐like cilia on the surface of respiratory epithelial cells, thus avoiding the site‐blocking induced by carbonaceous deposits and sustaining the catalyst stable for 1000 h without any deactivation. This study paves the way to develop other heterogeneous catalysts with high efficiency and durability via mimicking the innate defense mechanism of natural organisms.

Use of de-epithelialized free perforator flaps for simultaneous bone and soft-tissue reconstruction in chronic calcaneus osteomyelitis

The role of human Shu complex in ATP-dependent regulation of RAD51 filaments during homologous recombination–associated DNA damage response

Nrf2-and p53-inducible REDD2/DDiT4L/Rtp801L confers pancreatic β-cell dysfunction, leading to glucose intolerance in high-fat diet-fed mice

Bile acids inhibit equilibrative adenosine transport to alter adenosine receptor signaling in cholestasis

Conditional lethality and suppressor analysis of plasmid-based temperature-sensitive fabZ expression in Pseudomonas aeruginosa

Smooth muscle Cxcl12 contributions to vascular remodeling in flow and hypoxia-induced pulmonary hypertension

NOTCH2 disrupts the synovial fibroblast identity and the inflammatory response of epiphyseal chondrocytes

The transcriptional regulator Sin3a activates CD44 and promotes collective luminal breast cancer cell migration

CRAC channel activity pulsates during cytosolic Ca2+ oscillations

High uric acid exacerbates nonalcoholic steatohepatitis through NLRP3 inflammasome and gasdermin D-mediated pyroptosis

The ribonuclease RNase T2 mediates selective autophagy of ribosomes induced by starvation in Saccharomyces cerevisiae

ProOvErlap: Assessing feature proximity/overlap and testing statistical significance from genomic intervals

Evidence of bidirectional transmembrane signaling by the sensor histidine kinase GacS from Pseudomonas aeruginosa

A SUMO-interacting motif in the guanine nucleotide exchange factor EPAC1 is required for subcellular targeting and function

Circadian clock-independent ultradian rhythms in lipid metabolism in the Drosophila fat body

An uncharacterized gene from the Actinobacillus genus encodes a glucosyltransferase with successive transfer activity and unique substrate specificity

Histone H1 deamidation regulates DNA double-strand break repair

Key amino acids in RNA polymerase and helicase proteins regulate RNA synthesis efficiency in porcine reproductive and respiratory syndrome virus