Synergistic Dual-Pinning Engineering Enables Stable Mn-Based Layered Oxide Cathodes for High-Performance Sodium-Ion Batteries.

Mn-based oxide cathodes for sodium-ion batteries (SIBs) often suffer from structural degradation caused by Jahn-Teller distortion and irreversible phase transitions. Here, we propose a dual-site stabilization strategy by Mo/Mg codoping, which not only drives the transformation of the tunnel-type NaMnO into a P2-layered structure (NaMnMoMgO, denoted as MoMg-12) by modulating the total energy to enhance capacity but also employs Mo and Mg ions substituting Mn sites to implement synergistic dual-pinning engineering to stabilize the structure. This dual-pinning mechanism concurrently suppresses Jahn-Teller distortion by stabilizing Mn redox activity and improves air stability by reducing Na/H exchange while promoting a hydrophobic surface.

Converting and Fabricating LiCoO Cathode Material into a Disordered Rocksalt Surface Modification Layer to Enhance Interfacial Stability of High-Voltage Cathode.

Surface coating acts as an effective strategy to enhance the interfacial stability of high-voltage cathode, but yet there remains substantial potential value in exploring optimal materials and methods. Herein, we convert spent LiCoO (LCO) into nanosized disordered rocksalt-phase (DS) coating material, which exhibits considerable Li conductivity and high lattice-coherent compatibility with LCO. Subsequently, using a facile and scalable high-speed mechanofusion technology, we construct a continuous, uniform, and tightly bound DS coating layer onto LCO, denoted as DS@LCO cathode.

Guideline of Dynamic Tunnel Structural Evolution for Durable Sodium-Ion Oxide Cathodes.

Mn-based oxide cathodes hold great promise for sodium-ion batteries (SIBs) due to their cost-effectiveness and environmental compatibility. In this study, using tunnel-type NaMnO as a prototype, a systematic investigation is conducted to examine how different element substitutions affect structural evolution and found that these element substitutions alter the total energy of the pristine system, driving the structure to evolve gradually from a tunnel to a different crystal configuration. Notably, using advanced scanning transmission electron microscopy (STEM), the transition zone is captured from tunnel to layered structure for the first time, providing direct evidence of phase evolution.

Multi-Viewpoint and Multi-Evaluation with Felicitous Inductive Bias Boost Machine Abstract Reasoning Ability.

Great efforts have been made to investigate AI's ability in abstract reasoning, along with the proposal of various versions of RAVEN's progressive matrices (RPM) as benchmarks. Previous studies suggest that, even after extensive training, neural networks may still struggle to make decisive decisions regarding RPM problems without sophisticated designs or additional semantic information in the form of meta-data. Through comprehensive experiments, we demonstrate that neural networks endowed with appropriate inductive biases, either intentionally designed or fortuitously matched, can efficiently solve RPM problems without the need for extra meta-data augmentation.

A Janus Separator Regulating Zinc Deposition Behavior Synergistically by Cellulose and ZrO Nanoparticles Toward High-Performance Aqueous Zinc-Ion Batteries.

Aqueous zinc-ion batteries (AZIBs) stand out among many energy storage systems due to their many merits, and it's expected to become an alternative to the prevailing alkali metal ion batteries. Nevertheless, the cumbersome manufacturing process and the high cost of conventional separators make them unfavorable for large-scale applications. Herein, inspired by the unique nature of cellulose and ZrO, a Janus cellulose fiber (CF)/polyvinyl alcohol (PVA)/ZrO separator is prepared via the vacuum filtration method.

Revealing Gliding-Induced Structural Distortion in High-Nickel Layered Oxide Cathodes for Lithium-Ion Batteries.

After charging to a high state-of-charge (SoC), layered oxide cathodes exhibit high capacities but suffer from gliding-induced structural distortions caused by deep Li depletion within alkali metal (AM) layers, especially for high-nickel candidates. In this study, we identify the essential structure of the detrimental H3 phase formed at high SoC to be an intergrowth structure characterized by random sequences of the O3 and O1 slabs, where the O3 slabs represent Li-rich layers and the O1 slabs denote Li-depleted (or empty) layers that glide from the O3 slabs. Moreover, we adopt two doping strategies targeting different doping sites to eliminate the formation of Li-vacant O1 slabs.

High-Voltage Long-Cycling All-Solid-State Lithium Batteries with High-Valent-Element-Doped Halide Electrolytes.

All-solid-state batteries (ASSBs) have garnered considerable attention as promising candidates for next-generation energy storage systems due to their potentially simultaneously enhanced safety capacities and improved energy densities. However, the solid future still calls for materials with high ionic conductivity, electrochemical stability, and favorable interfacial compatibility. In this study, we present a series of halide solid-state electrolytes (SSEs) utilizing a doping strategy with highly valent elements, demonstrating an outstanding combination of enhanced ionic conductivity and oxidation stability.

Bandgap tuning in MoSSe bilayers: synergistic effects of dipole moment and interlayer distance.

From first principles calculations, the lowest energy structures of bilayer MoSSe with different combination patterns (S-S, Se-Se, and S-Se bilayers) have been confirmed. The results demonstrate that the band gap of bilayer MoSSe can be tuned by interlayer distance and dipole moment. A larger interlayer distance increases the band gap, while a larger dipole moment reduces the band gap.

Preparation and neutralization efficacy of IgY antibodies raised against venom.

Background: The five-paced pit viper (), endemic to China and northern Vietnam, is responsible for most snakebites in the Chinese territory. Antivenom produced from horses is the main treatment for snakebites, but it may cause numerous clinical side effects and have other disadvantages involved in their production such as the welfare of animals. The present study was conducted aiming to develop an alternative antibody (IgY) from the egg yolk of leghorn chickens immunized with snake venom.