213241
Lithium sulfide
99.98% trace metals basis
Synonyme(s) :
(lithiosulfanyl)lithium
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A propos de cet article
Formule empirique (notation de Hill) :
Li2S
Numéro CAS:
Poids moléculaire :
45.95
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352300
EC Number:
235-228-1
MDL number:
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Laissez-nous vous aiderInChI key
ZWDBUTFCWLVLCQ-UHFFFAOYSA-N
InChI
1S/2Li.S
SMILES string
[Li]S[Li]
grade
battery grade
assay
99.98% trace metals basis
form
powder
composition
Li2S
reaction suitability
reagent type: catalyst
core: lithium
density
1.66 g/mL at 25 °C (lit.)
application(s)
battery manufacturing
battery manufacturing
storage temp.
2-8°C
Quality Level
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Catégories apparentées
General description
Lithium sulfide powder is a high-purity, inorganic compound that appears as a white to yellowish crystalline powder. It has a molecular weight of 45.95 g/mol and a density of 1.82 g/cm³. Lithium sulfide is a strong nucleophile and has the chemical formula Li₂S. It readily reacts with water to produce lithium hydroxide and hydrogen sulfide gas. It is also soluble in some organic solvents, such as pyridine and dimethyl sulfoxide.
Application
High-purity lithium sulfide is primarily used as a precursor in the synthesis of other lithium compounds such as lithium thioacetate, lithium tetrafluoroborate, and thio-LISICONs, which are used in lithium-ion batteries among other applications. High-purity lithium sulfide can also be used directly in battery applications as a cathode material in lithium-sulfur batteries. With a theoretical capacity of up to 1166 mAh/g, almost four times that of lithium cobalt oxide, lithium sulfide has gained attention as next-generation cathode material. Additionally, lithium sulfide is used as a precursor in the semiconductor industry for the production of thin-film transistors (TFTs) and other electronic devices, especially lithium sulfide-phosphorus oxide (Li2S-P2O5) TFTs. It is also used in the chemical manufacturing industry as a precursor for lithium hydride, lithium borohydride, and lithium amide, among many other applications.
Features and Benefits
Higher Purity - 99.98%, making it an ideal choice for applications that require higher purity materials.
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B
supp_hazards
Classe de stockage
6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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Marvin A Kraft et al.
Journal of the American Chemical Society, 139(31), 10909-10918 (2017-07-26)
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Seh ZW, et al.
Chemical Science, 4(9), 3673-3677 (2013)
Hyunwon Chu et al.
Nature communications, 10(1), 188-188 (2019-01-16)
Uncontrolled growth of insulating lithium sulfide leads to passivation of sulfur cathodes, which limits high sulfur utilization in lithium-sulfur batteries. Sulfur utilization can be augmented in electrolytes based on solvents with high Gutmann Donor Number; however, violent lithium metal corrosion
Dominik Wohlmuth et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 16(12), 2582-2593 (2015-07-21)
The development of safe and long-lasting all-solid-state batteries with high energy density requires a thorough characterization of ion dynamics in solid electrolytes. Commonly, conductivity spectroscopy is used to study ion transport; much less frequently, however, atomic-scale methods such as nuclear
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