213241
Lithium sulfide
99.98% trace metals basis
Synonym(s):
(lithiosulfanyl)lithium
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About This Item
Empirical Formula (Hill Notation):
Li2S
CAS Number:
Molecular Weight:
45.95
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352300
EC Number:
235-228-1
MDL number:
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
SMILES string
[Li]S[Li]
InChI
1S/2Li.S
InChI key
ZWDBUTFCWLVLCQ-UHFFFAOYSA-N
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.
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Danger
hcodes
Hazard Classifications
Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B
supp_hazards
Storage Class
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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Stable cycling of lithium sulfide cathodes through strong affinity with a bifunctional binder
Seh ZW, et al.
Chemical Science, 4(9), 3673-3677 (2013)
Marvin A Kraft et al.
Journal of the American Chemical Society, 139(31), 10909-10918 (2017-07-26)
In the search for novel solid electrolytes for solid-state batteries, thiophosphate ionic conductors have been in recent focus owing to their high ionic conductivities, which are believed to stem from a softer, more polarizable anion framework. Inspired by the oft-cited
Li-Ping Lv et al.
Small (Weinheim an der Bergstrasse, Germany), 15(3), e1804338-e1804338 (2018-12-18)
In this work, hydroxyl-functionalized Mo2 C-based MXene nanosheets are synthesized by facilely removing the Sn layer of Mo2 SnC. The hydroxyl-functionalized surface of Mo2 C suppresses the shuttle effect of lithium polysulfides (LiPSs) through strong interaction between Mo atoms on