Lithium Quenching
Lithium Quenching - Related Videos
10:57
Quenching and Boiling
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2023
Source: Alexander S Rattner, Sanjay Adhikari, and Mahdi Nabil; Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA Controlled heating followed by rapid cooling is an important element of many materials processing applications. This heat-treating procedure can increase material hardness, which is important for cutting tools or surfaces in high wear environments. The rapid cooling stage is called quenching, and is often performed by immersing...
07:23
Construction and Testing of Coin Cells of Lithium Ion Batteries
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Cited by 13 •
2012
A protocol to construct and test coin cells of lithium ion batteries is described. The specific procedures of making a working electrode, preparing a counter electrode, assembling a cell inside a glovebox and testing the cell are presented.
11:25
In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries
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Cited by 7 •
2014
We describe the design and construction of an electrochemical cell for the examination of electrode materials using in situ neutron powder diffraction (NPD). We briefly comment on alternate in situ NPD cell designs and discuss methods for the analysis of the corresponding in situ NPD data produced using this cell.
05:33
Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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2013
Lithium ion batteries employ flammable and volatile organic electrolytes that are suitable for ambient temperature applications. A safer alternative to organic electrolytes are solid polymer batteries. Solid polymer batteries operate safely at high temperatures (>120 °C), thus making them applicable to high temperature applications such as deep oil drilling and hybrid electric vehicles. This paper will discuss (a) the polymer synthesis, (b) the polymer conduction mechanism, and (c) provide...
06:56
1,3,5-Triphenylbenzene and Corannulene as Electron Receptors for Lithium Solvated Electron Solutions
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Cited by 4 •
2016
The authors report on conductivity studies carried out on lithium solvated electron solutions (LiSES) prepared using 1,3,5-triphenylbenzene (TPB) and corannulene as electron receptors.
FAQs
Their transferable protons neutralize the carbon-based anion formed by the organolithium reagent. This protonation removes the reagent’s reactive character, while the lithium component becomes a relatively stable salt. Selecting a protic quench therefore provides a direct chemical pathway for terminating residual reactivity during workup or before disposal.
The key transformation is proton transfer to the carbon-based anion. That step converts the reactive carbon species into a less reactive product, while lithium is incorporated into a comparatively stable salt. These changes explain why quenching can terminate excess reagent, but they also show why the process must be treated as an active chemical reaction rather than simple dilution.
Protonation of reactive lithium-containing species can release substantial heat, and the reaction may also produce gas. Heat generation and gas evolution can accelerate the process or create pressure and handling hazards if the quench proceeds too quickly. Controlling temperature and addition rate helps keep these effects within manageable limits.
More residual reactive material can increase the total heat released and the extent of gas formation during quenching. The operator therefore needs to account for how much reagent remains when controlling addition rate and temperature. This consideration supports a more predictable termination step and reduces the likelihood of an uncontrolled reaction during workup.
Temperature and the rate at which the protic quench is added are the primary control variables identified for this process. Managing both limits the intensity of heat release and gas evolution. Careful control is especially important when residual reactive lithium species remain after synthesis, because abrupt addition can make the workup less predictable and less safe.
Synthetic chemists use this step after a reaction to deactivate excess reagent, during workup to support product isolation, or before disposal to reduce residual reactivity. Its immediate outcome is termination of the reactive lithium species, which helps make subsequent handling more controlled. The practice also supports reproducibility, laboratory safety, and appropriate waste management.