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Metal Anode - Astrophysics Data System

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Last Updated: 06 May 2022

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Cyclohexanedodecol-Assisted Interfacial Engineering for Robust and High-Performance Zinc Metal Anode

Aqueous zinc-ion batteries can be one of the most popular electrochemical energy storage solutions for being non-flammable, low-cost, and environmentally friendly. To solve these difficulties, we firstly establish [Zn 5] 2+ complex ion in an aqueous Zn electrolyte and then create a robust protection layer on the Zn surface to solve these problems. The resultant AZIBs full cell with the CHD-modified electrolyte has a high capacity of 175 mAh g 1 after 2000 cycles under 2 A g 1 compared to V2 O 5 cathode, with a 92% retention rate. Such a result may lead to the commercialization of AZIBs for use in grid energy storage and industrial energy storage.

Source link: https://ui.adsabs.harvard.edu/abs/2022NML....14..110W/abstract


Confining Sn nanoparticles in interconnected N-doped hollow carbon spheres as hierarchical zincophilic fibers for dendrite-free Zn metal anodes

In high-performance Zn metal batteries, we developed a three-dimensional hybrid fiber host based on interconnected N-doped hollow carbon spheres embedded with Sn nanoparticles embedded with Sn nanoparticles for Zn metal anodes. Experimental findings and density functional theory analyses indicate that the zincophilic Sn nanoparticles and N-doped carbons help promote homogeneous Zn deposition on the hollow fibers' interior and exterior surfaces. A zincophilic fiber host for Zn metal anodes is provided by interconnected N-doped hollow carbon spheres embedded with Sn particles.

Source link: https://ui.adsabs.harvard.edu/abs/2022SciA....8M5766Y/abstract


Suppressing chemical corrosions of lithium metal anodes

The lithium metal anode is required for next generation Li metal batteries that are rechargeable with high energy density. We then proposed new measures to prevent Li metal batteries' premature deterioration, which would prolong the calendar life of Li metal batteries. Li deposits with ultra-low porosity can be achieved by limiting the stacking pressure during Li plating, lowering the corrosion rate to 0. 08% per day compared to 1. 91 percent per day for high-porosity Li.

Source link: https://ui.adsabs.harvard.edu/abs/2022arXiv220411631L/abstract


Cathode and Hollow Metal Anode with Miniature Argon Gas Flow

The resulting study indicates that argon gas increases the spectral intensity of the high energy species in both cathode and anode. As the flow rate of argon increases, the plasma volume becomes significantly smaller. The audio signal in the high frequency band is reduced in the acous frequency band, although the argon flow rate rises. The range of sound delivery within the low frequency band has widened. The study shows that argon flow rate in the near-cathode zone can also raise the plasma parameters.

Source link: https://ui.adsabs.harvard.edu/abs/2022JApSp..89..141Z/abstract


Modulating Sand's time by ion-transport-enhancement toward dendrite-free lithium metal anode

Metallic lithium is regarded as the "Holy Grail" anode in high-energy-density secondary batteries by Metallic lithium. Uncontrollable lithium dendrite rise and related issues resulted from uneven distribution of Li + in the anode's vicinity, prompting serious safety and poor cycling performance, dragging lithium metal anode out of practical use. Our experiments show that inducing the self-concentration of Li+ at the interface can be a cost-effective method for lowering the interfacial ion concentration gradient and optimizing lithium deposition, opening a new avenue for the practical development of next-generation lithium metal batteries.

Source link: https://ui.adsabs.harvard.edu/abs/2022NaRes..15.3150Y/abstract


Fast-charging and dendrite-free lithium metal anode enabled by partial lithiation of graphene aerogel

Due to the inherent dendrite growth regulated by Sand's law, conventional lithium metal anodes suffered from low operating current densities and shallow charge/discharge depths. We've come up with a new style of heavy-duty lithium metal anode produced by partially infusing the three-dimensional porous graphene aerogel with molten Li herein. Both electroanalytical experiments and simulations show that the unique electrode architecture provides significant advantages in mediating smooth Li plating/stripping, including reduced local current density, discouraged dendrite growth, buffered volume fluctuation, and more effective Li utilization. With a per-cycle capacity decline of only 0. 02 percent, LiFePO 4 full cells display a remarkable rate stability up to 10 C and a long cycle of 1,600 cycles at 2 C. This research reveals that lithium metal batteries can be deployed in real-world applications that necessitate quick charging and deep cycling.

Source link: https://ui.adsabs.harvard.edu/abs/2022NaRes.tmp..204M/abstract

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions