Unstable electrode/electrolyte interface with inhomogeneous Zn deposition and side reactions plagues the practical application of aqueous Zn-ion batteries. Herein, L-carnitine (L-CN) is proposed to stabilize both electrodes and extend the...

Reversible Adsorption with Oriented Arrangement of Zwitterionic Additive Stabilizes Electrodes for Ultralong-Life Zn-lon Batteries

Uncontrolled dendrites growth and serious parasitic reactions in aqueous electrolytes, greatly hinder the practical application of aqueous zinc-ion battery. On the basis of in situ-chemical construction and performance-improving mechanism, multifunctional fluoroethylene carbonate (FEC) is introduced into aqueous electrolyte to construct a high-quality and ZnF2-riched inorganic/organic hybrid SEI (ZHS) layer on Zn metal anode (ZMA) surface. Notably, FEC additive can regulate the solvated structure of Zn2+ to reduce H2O molecules reactivity. Additionally, the ZHS layer with strong Zn2+ affinity can avoid dendrites formation and hinder the direct contact between the electrolyte and anode. Therefore, the dendrites growth, Zn corrosion, and H2 evolution reaction on ZMA in FEC-included ZnSO4 electrolyte are highly suppressed. Thus, ZMA in such electrolyte realize a long cycle life over 1000 h and deliver a stable coulombic efficiency of 99.1 % after 500 cycles. 

ZnF 2 ‐Riched Inorganic/Organic Hybrid SEI: in situ‐Chemical Construction and Performance‐Improving Mechanism for Aqueous Zinc‐ion Batteries

A self-assembled multilayer was used to homogenize ion flux and accelerate charge transfer through area-induced deposition effects and strong dipole moments. The molecular domains act as a buffer interphase to achieve long-term stability.

Self-assembled multilayers direct a buffer interphase for long-life aqueous zinc-ion batteries

Recent advances in manipulating strategy of aqueous electrolytes for Zn anode stabilization

Zinc-based batteries (ZBs) have recently attracted wide attention energy storage with cost-effectiveness and intrinsic safety. However, it suffers from poor interface stability between the zinc anode and the electrolyte. Although the structure of the electrical double layer (EDL) is the key factor governing the interfacial properties, its understanding is still in infancy due to limited characterization techniques. In this review, we systematically discuss the relationship between interface properties, solvation sheath structure and the components of the Helmholtz layer. The possible transport pathway of zinc ions and the structural evolution mechanism of EDL at the interface are emphasized, with a scientific principle for the EDL regulation to inspire the rational design of future electrolytes and interface. 

Electric double layer design for Zn-based batteries

Stabilization of Zn anode via a multifunctional cysteine additive

In this paper, based on machine vision, the trajectory planning and chaos prediction of intelligent robots are studied. On the basis of the camera imaging model, the knowledge of digital image processing is used for road image preprocessing. Aiming at the phenomenon of weak edge missed detection in the edge detection process, an edge point detection algorithm based on the gradient amplitude and edge direction is proposed. On this basis of chaotic prediction and trajectory planning of the lane line. Research on robot lane changing decision model based on data mining. In view of the complex lane-changing scenes, many influencing factors, and increased requirements for the accuracy of the lane-changing model, the behavior characteristics of the robot's lane-changing behavior are analyzed. 

Intelligent Robot Motion Trajectory Planning and Chaotic Prediction Based on Machine Vision

3,5,6-Trichloro-2-pyridinol (TCP), the main degradation production of the pesticide chlorpyrifos and the herbicide triclopyr, features anti-degradation and high water solubility that challenge the in situ prevention of the migration of TCP from soils to water bodies. Biochar is a widely used amendment, but previous studies focused on the low content of biochar application that restricted the off-site prevention. In this study, therefore, both experiments and models were employed to explore the destination of TCP in purple soil, an Entisol with low organic matter content, large pores, and high water conductivity in southwestern China with a high ratio of biochar applied. Soil columns were homogeneously packed by mixing biochar at 0, 1%, 2%, 3%, 4%, 5%, 7.5%, 10%, 15%, and 20%, then the impulsive input of the breakthrough curves was used to explore the adsorption and desorption process of TCP, and the release of adsorbed TCP was traced by Br−. Following the dynamic outflow during the adsorption processes was simulated using the cumulative distribution function of gamma distribution, and the release of TCP was simulated by coupling the mass balance equation and first-order decay kinetics equation. The results revealed that the adsorption ability of the soil increased exponentially with the content of mixed biochar, implying a much larger increment at high content. For the removal rate of 90%, e.g., the increment was about 20 mg/kg when the content of biochar was raised from 15% to 20%, while it was about 7 mg/kg when the content was raised from 0 to 5%. The dynamic release and the unreleasable TCP could be well simulated by the first-order decay kinetics equation and the logarithmic model, respectively. The releasable TCP showed an increase–decrease pattern, and the maximum was observed at a 5% biochar content. These results above will provide a systematic experimental scheme, model support, and data reference to control organic pollutants with high solubility, stability, and strong migration using biochar in an off-site pattern such as an ecological ditch system. 

/pdf/experiment-and-model-study-on-the-destination-of-356-3qhzmbio.pdf

Experiment and Model Study on the Destination of 3,5,6-Trichloro-2-pyridinol in the Purple Soil of Southwestern China with a High Ratio of Biochar Applied

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Stabilization of Zn anode via a multifunctional cysteine additive

Intelligent Robot Motion Trajectory Planning and Chaotic Prediction Based on Machine Vision

Experiment and Model Study on the Destination of 3,5,6-Trichloro-2-pyridinol in the Purple Soil of Southwestern China with a High Ratio of Biochar Applied