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Sigma-Aldrich

Lithium sulfide

99.98% trace metals basis

Sinónimos:

(lithiosulfanyl)lithium

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About This Item

Fórmula empírica (notación de Hill):
Li2S
Número de CAS:
12136-58-2
Peso molecular:
45.95
EC Number:
235-228-1
MDL number:
MFCD00011085
UNSPSC Code:
12352300
PubChem Substance ID:
24852674
NACRES:
NA.23

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

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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.

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

hcodes

H301,H314

Hazard Classifications

Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B

supp_hazards

EUH029

Storage Class

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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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)
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
Wen Liu et al.
Proceedings of the National Academy of Sciences of the United States of America, 114(14), 3578-3583 (2017-03-23)
Lithium-sulfur batteries (Li-S batteries) have attracted intense interest because of their high specific capacity and low cost, although they are still hindered by severe capacity loss upon cycling caused by the soluble lithium polysulfide intermediates. Although many structure innovations at
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
Jae-Woo Park et al.
Nanomaterials (Basel, Switzerland), 11(2) (2021-02-11)
The lithium-polysulfide (LiPS) dissolution from the cathode to the organic electrolyte is the main challenge for high-energy-density lithium-sulfur batteries (LSBs). Herein, we present a multi-functional porous carbon, melamine cyanurate (MCA)-glucose-derived carbon (MGC), with superior porosity, electrical conductivity, and polysulfide affinity
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