Skip to Content
MilliporeSigma
All Photos(1)

Documents

920398

Sigma-Aldrich

Lithium bis(trimethylsilyl)amide

99.9% trace metals basis

Synonym(s):

LHMDS, LiHMDS, LiTMSA, Lithium hexamethyldisilazide, Hexamethyldisilazane lithium salt

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
[(CH3)3Si]2NLi
CAS Number:
Molecular Weight:
167.33
MDL number:
UNSPSC Code:
12352111

Quality Level

assay

99.9% trace metals basis

form

solid

density

0.860 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

SMILES string

[Li]N([Si](C)(C)C)[Si](C)(C)C

InChI

1S/C6H18NSi2.Li/c1-8(2,3)7-9(4,5)6;/h1-6H3;/q-1;+1

InChI key

YNESATAKKCNGOF-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

General description

Lithium bis(trimethylsilyl)amide also known as lithium hexamethyldisilazide (LiHMDS) is a non-nucleophilic strong base. It exhibits ionic conductivity and is widely used as a lithium source and additive in electrolyte formulations for lithium-ion batteries.

Application

Lithium bis(trimethylsilyl)amide can be used:


  • As an electrolyte additive for non-aqueous lithium metal batteries. LiHMDS acts as a scavenger for hydrofluoric acid and forms an electrochemical robust cathode|electrolyte interphase (CEI) and suppresses the side reactions with the electrolyte solution.
  • As a lithium precursor for atomic layer deposition(ALD) of textured Li4Ti5O12 as anode material for Li-ion ultrafast charging thin-film batteries. It enables the controlled delivery of lithium atoms into the deposition process, leading to the growth of thin films with precise thickness and composition.
  • As a precursor to fabricate in situ lithiated quinone cathode as high-capacity organic electrode material for all-solid-state thin-film battery setup.

pictograms

FlameCorrosion

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 1 - Skin Corr. 1B

supp_hazards

wgk_germany

WGK 2

flash_point_f

62.6 °F

flash_point_c

17 °C


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Olesya Yarema et al.
Chemistry of materials : a publication of the American Chemical Society, 25(18), 3753-3757 (2014-04-22)
We report a simple, high-yield colloidal synthesis of copper indium selenide nanocrystals (CISe NCs) based on a silylamide-promoted approach. The silylamide anions increase the nucleation rate, which results in small-sized NCs exhibiting high luminescence and constant NC stoichiometry and crystal
In situ lithiated quinone cathode for ALD/MLD-fabricated high-power thin-film battery
Mikko Nisula and Maarit Karppinen
Journal of Materials Chemistry, 6, 7027-7033 (2018)
Maksym Yarema et al.
ACS nano, 5(5), 3758-3765 (2011-04-20)
Here, we present a hot injection synthesis of colloidal Ag chalcogenide nanocrystals (Ag(2)Se, Ag(2)Te, and Ag(2)S) that resulted in exceptionally small nanocrystal sizes in the range between 2 and 4 nm. Ag chalcogenide nanocrystals exhibit band gap energies within the
Lithium hexamethyldisilazide as electrolyte additive for efficient cycling of high-voltage non-aqueous lithium metal batteries
Danfeng Zhang, et al.
Nature Communications, 13, 6966-6966 (2022)
Atomic layer deposition of textured Li4Ti5O12: a high-power and long-cycle life anode for lithium-ion thin-film batteries
Jan Speulmanns, et al
Small, 17, 2102635-2102635 (2021)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service