Solid polymer electrolytes are promising for safe and high-energy-density lithium metal batteries. However, traditional ether-based limited by their low lithium-ion conductivity narrow electrochemical window because of the well-defined intimated Li

Lithium-metal batteries (LMBs) capable of operating stably at high temperature application scenarios are highly desirable. Conventional lithium-ion could only work under 60 °C because the thermal instability electrolyte elevated temperature. Here we design and develop a stable based on solvation structure using multiple ion-dipole interactions. The strong coordination in solvated defines Li deposition behaviour evolution solid interphase temperature, which is important to achieve Coulombic...

Open AccessCCS ChemistryCOMMUNICATIONS17 Jan 2024A Fluorinated, Ion-Conducting and Adaptive Supramolecular Polymer Protective Layer for Stabilizing Lithium Metal Anodes Tao Chen†, Bo Qin†, Yuncong Liu, Zhekai Jin, Haiping Wu, Chao Wang Xi Zhang Chen† *Corresponding authors: E-mail Address: [email protected] Institute of Smart City Intelligent Transportation, Southwest Jiaotong University, Chengdu 610032 Key Lab Organic Optoelectronics Molecular Engineering, Department Chemistry, Tsinghua...

Solid polymer electrolytes (SPEs) have gained widespread attention due to their potential applications in energy storage and conversion devices. The solvation structure, which refers the interactions between polymers ions electrolyte, plays a crucial role electrochemical performance of electrolyte. This review summarizes latest research progress structures SPEs, including impact on ion conductivity, mechanical property, interfacial stability. First, we introduce characteristics SPEs compare...

Abstract Solid polymer electrolytes are promising for safe and high‐energy‐density lithium metal batteries. However, traditional ether‐based limited by their low lithium‐ion conductivity narrow electrochemical window because of the well‐defined intimated Li + ‐oxygen binding topologies in solvation structure. Herein, we proposed a new strategy to reduce ‐polymer interaction strengthen anion‐polymer combining strong ‐O (ether) interactions, weak (ester) interactions with steric hindrance...

Isogeometric Analysis combines the NURBS technology and finite element approaches into a unified framework. Regrettably, basis functions don’t interpolate at control points, which lead to difficulty for imposing essential boundary conditions. A new approach inspired by Nitsche’s notion was proposed in order remedy this issue. The constraints are enforced consistent penalty terms. It has some notable advantages than other methods, such as (i) symmetric positive definite bilinear formulation...

To achieve a better insight into the far-field plasma spatial distribution and evolution characteristics of 300W class low-power Hall thruster(LHT) for commercial aerospace applications, dedicated integrated diagnostic system (PDS) composed seventeen Faraday cups (FC) two triple Langmuir probes (TLP) is established to investigate time-averaged in-situ ions electrons. The ion current density(ICD), potential, density, electron temperature at 1000mm downstream LHT applications in azimuthal...

The vehicle mass and road grade will affect the working state of power system is also basic data intelligent control. However, estimation effect limited under small acceleration commercial vehicle. Aiming at reliability prediction accuracy algorithm acceleration, a joint method based on recursive kernel density optimization proposed. process improved by combining priori analysis posteriori estimation, then results are evaluated optimized. to mine conditions suitable for from data, locate...

Abstract The glyd ring of the transmission device is prone to wear and leakage, which causes sealing failure cause device. Therefore, a pressure-resistant self-compensating oil seal proposed in this research. influence working conditions such as pressure rotational speed on its temperature studied by numerical simulation method. An experiment bench for seals constructed utilized validate findings. above research results can ensure safe stable operation long period. In research, effect...

The fluorination strategy is one of the most efficient and popular molecular modification methods to develop new materials for organic photovoltaic (OPV) cells. For OPV materials, it a broad agreement that can reduce energy level change morphology active layers. To explore effect on small molecule acceptors, we selected two non-fullerene acceptors (NFA) based bulk heterojunction (BHJ) films, involving PM6:Y6 PM6:Y5 as model systems. electron mobilities BHJ films are 5.76 × 10−7 cm2V−1s−1...

Compared with chemical propulsion,the application electric propulsion system in spacecraft can save the amount of propellant,which is able to significantly reduce launch mass or allow more payloads target. In this paper,the research on high power thrusters world investigated. An systemis designed for near-earth orbit transfer. Several schemes are compared different thruster performances. At last,the suggestions proposed developing and China.

Temperature plays an important role in the gas permeability test. A small temperature variation still exists experimental process since control device cannot strictly maintain a constant temperature. This can further affect accuracy of permeability. To solve this problem, simple method based on ideal equation state is introduced to calibrate pressure because effect. We verified calibration results through sever?al examples, and proved feasibility effectiveness method. In particular,...

Electrolytic aluminium pre-baked anode conductive device for the special friction Welder upsetting system is research object. Establish dynamic equation of by its Lagrange equation; analyze key factors affecting systems characteristics; build finite element model to be real ANSYS Workbench; Set parameters two sets plans and do analysis modal harmonic response successively. The compared results reveals that guide spacing damping among all parts can affect characteristics, which will provide a...

In this paper, an analysis of the sources errors in conventional algorithm synchronous sampling is presented. An alternate optimization proposed, which intervals are dynamically adjusted within each signal cycle. A rule for remainder and rounding identified to accelerate execution algorithm. Results from experiments show that approach effective reducing errors, increasing precision measurements, speeding up execution, enhancing real-time capability sampling.