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Merck

518018

Lithium iodide

greener alternative

99.9% trace metals basis

Synonym(s):

Lithium(1+)iodide

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About This Item

Linear Formula:
LiI
CAS Number:
10377-51-2
Molecular Weight:
133.85
NACRES:
NA.23
PubChem Substance ID:
24873993
UNSPSC Code:
12352302
EC Number:
233-822-5
MDL number:
MFCD00011092
Assay:
99.9% trace metals basis
Form:
powder

Key Documents

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InChI key

HSZCZNFXUDYRKD-UHFFFAOYSA-M

InChI

1S/HI.Li/h1H;/q;+1/p-1

SMILES string

[Li+].[I-]

assay

99.9% trace metals basis

form

powder

reaction suitability

core: lithium

greener alternative product characteristics

Design for Energy Efficiency
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sustainability

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impurities

≤1500.0 ppm Trace Metal Analysis

mp

446 °C (lit.)

density

3.49 g/mL at 25 °C (lit.)

application(s)

battery precursors
catalysts
material synthesis precursor

greener alternative category

Enabling

Quality Level

200

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General description

Lithium iodide is widely used as an electrolyte additivein dye-sensitized solar cells and Li-S batteries, as it enables long cyclelife. It is also used as a phosphor for neutron detection.
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Application

Lithium iodide(LiI)can be used as an electrolyte additive:

  • To prepare biodegradable polymer electrolytes.Rice starch complexed with LiI shows enhanced ionic conductivity as theaddition of LiI increases the number of mobile charge carriers.
  • For Li-S batteries. LiIforms a protective coating on the surface of both negative and positiveelectrodes and prevents the dissolution of polysulfides on the cathode sidewhich significantly enhances cell rate performance.
It can also be used to prepare Li-basedscintillators with enhanced thermal neutron detection efficiency.

Features and Benefits

  • 10 mesh particle size provides a larger surface area for better reactivity and interaction in chemical processes, improving efficiency in energy storage and conversion.
  • 99.9% trace metals purity facilities better charge/ion transport leading to improved performances.
  • Enhances durability and Longevity of energy & electronic devices due to minimum metal impurities.
  • Low metal impurities reduce structural defects in solar cells and contribute to the formation of a stable electrolyte in batteries.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

518018-50G:4548173989181 + 518018-10G:4548173989198 + 518018-VAR: + 518018-BULK:

jan

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Certificates of Analysis (COA)

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Feixiang Wu et al.
Advanced materials (Deerfield Beach, Fla.), 27(1), 101-108 (2014-11-05)
Lithium Iodide (LiI) is reported as a promising electrolyte additive for lithium-sulfur batteries. It induces formation of Li-ion-permeable protective coatings on both positive and negative electrodes, which prevent the dissolution of polysulfides on the cathode and reduction of polysulfides on
Seon-Joo Choi et al.
ACS applied materials & interfaces, 10(37), 31404-31412 (2018-08-28)
All-solid-state lithium batteries (ASSLBs) based on sulfide solid electrolytes (SEs) have received great attention because of the high ionic conductivity of the SEs, intrinsic thermal safety, and higher energy density achievable with a Li metal anode. However, studies on practical
Jianjian Lin et al.
Scientific reports, 4, 5769-5769 (2014-08-30)
Three-dimensional (3D) hierarchical nanoscale architectures comprised of building blocks, with specifically engineered morphologies, are expected to play important roles in the fabrication of 'next generation' microelectronic and optoelectronic devices due to their high surface-to-volume ratio as well as opto-electronic properties.
Yu-il Kang et al.
ChemSusChem, 8(22), 3799-3804 (2015-10-17)
Dye-sensitized solar cells (DSCs) with long-term stability are produced using polymer-gel electrolytes (PGEs). In this study, we introduce the formation of PGEs using in situ gelation with poly(methyl methacrylate) (PMMA) particles and graphene fillers that are pre-deposited on the counter electrodes.
Jung-Che Tsai et al.
Chemistry, an Asian journal, 10(9), 1932-1939 (2015-07-15)
Mesoporous cobalt sulfide nanotube arrays on FTO-coated glass were synthesized by combining three simple technologies: the selective etching of ZnO sacrificial templates, mesoporous Co3 O4 formation from cobalt-chelated chitosan, and ion-exchange reaction (IER). The mesoporous Co3 O4 nanotubes composed of
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