Browse Topic: Plating
In the realm of low-altitude flight power systems, such as electric vertical take-off and landing (eVTOL), ensuring the safety and optimal performance of batteries is of utmost importance. Lithium (Li) plating, a phenomenon that affects battery performance and safety, has garnered significant attention in recent years. This study investigates the intricate relationship between Li plating and the growth profile of cell thickness in Li-ion batteries. Previous research often overlooked this critical aspect, but our investigation reveals compelling insights. Notably, even during early stage of capacity fade (~ 5%), Li plating persists, leading to a remarkable final cell thickness growth exceeding 20% at an alarming 80% capacity fade. These findings suggest the potential of utilizing cell thickness growth as a novel criterion for qualifying and selecting cells, in addition to the conventional measure of capacity degradation. Monitoring the growth profile of cell thickness can enhance the
Anode-free sodium metal batteries (AFSMBs) with initial zero sodium anodes are promising energy-storage devices to achieve high energy density and low cost. The morphology and reversibility of sodium controls the cycling lifespan of the AFSMBs, which is directly affected by the separator. Here, we compared the sodium deposition and corresponding electrochemical behaviors under the influence of three commercial separators, which were Celgard 2500, Al2O3-coated PP separator and glass fiber (denoting as 2500, C-PP and GF). Firstly, the reversibility of sodium plating/stripping was tested using half-cells, where coulombic efficiencies were stable at ~99.89% for C-PP and GF compare to 99.65% for 2500, indicating more dead sodium were formed for 2500. Then, the morphologies of deposited sodium were compared using optical microscopy. Compared to inhomogeneous sodium growth under 2500, C-PP obtained more flatter sodium layer with less height difference, attributing to the high mechanical
This specification covers the requirements for electrodeposited bronze plate and its subsequent removal
This specification covers metric aircraft quality spacers for use as positioners for tubes, flat washers for use as load spreaders, galling protection of adjacent surfaces and or material compatibility, and key or tab washers for use as locks for bolts, nuts, and screws
This specification covers the requirements for electroless nickel with phosphorus deposited on various materials
This specification covers the requirements for an electrodeposit of cadmium diffused into an electrodeposit of nickel on carbon, low-alloy, and corrosion-resistant steels
This specification covers the requirements for electrodeposition of tin on metals and the properties of the deposit
A research team from Pohang University has successfully enhanced the performance and durability of all-solid-state batteries. This breakthrough was made possible through the implementation of a novel approach known as bottom electrodeposition
This specification covers the requirements for electrodeposited zinc-nickel on metal parts, including fasteners and other standard parts
This document establishes the requirements for the sequencing of processes relating to parts fabricated from 300M or 4340 modified steel heat treated to, or to be heat treated to, 270,000 psi (1860 MPa) minimum ultimate tensile strength (UTS) and higher
This specification covers the requirements for a layer of electrodeposited silver followed by a layer of electrodeposited rhodium
This specification covers requirements for silver deposited on metal parts with a nickel strike between the basis metal and the silver deposit
This specification covers the requirements for electrodeposited zinc plating
This specification covers the requirements for electrodeposited tin-lead plating intended for use as a coating for corrosion protection and as a base for soldering
This specification covers requirements for the material, design, testing and packaging of straight thread tube fitting boss O-rings. O-rings covered by this specification are acrylonitrile-butadiene rubber
This specification covers the requirements for electrodeposited chromium plating
14-day material test to determine the cyclic effects of runway deicing compounds on cadmium plated parts
With the worldwide trends in mobile electrification, consumers' demand for fast charging of electric vehicles (EVs) continues to grow. However, due to the defects of the current mainstream vehicle-mounted lithium-ion batteries (LIBs), lithium plating will occur at the anode during charging at high current rates, reducing battery life and even causing serious safety problems. In this paper, a pseudo two-dimensional (P2D) model integrated with lithium plating and SEI growth reaction is established to simulate the aging behavior of the battery during the cycle aging process. After verifying the model, we set up simulation conditions to quantitatively analyze the relationship between battery operating temperature, charging rate and cycle life, as well as the causes of capacity attenuation under each operating condition. By analyzing the simulation results, we found that lithium deposition can be predicted based on the overpotential, which can provide guidance for healthy and efficient fast
This specification covers requirements for electrodeposited porous chromium plate
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