LITHIUM MANGANESE OXIDE

LITHIUM MANGANESE OXIDE Basic information
Health Harzard
Product Name:LITHIUM MANGANESE OXIDE
Synonyms:LITHIUM MANGANESE(III,IV) OXIDE;LITHIUM MANGANESE OXIDE;LITHIUM MANGANESE(III,IV) OXIDE, ELECTRO -CHEMICAL GRADE;Lithium manganese oxide (LiMn2O4);Lithium manganese(III,IV) oxide, 99.5% (metals basis);Lithium manganate;Lithium manganese oxide spinel, powder, <0.5 mum particle size (BET), >99%;Lithium manganese(III,IV) oxide, 99.5% trace metals basis
CAS:12057-17-9
MF:LiMn2O4
MW:180.81
EINECS:
Product Categories:Alternative Energy;Electrode Materials;Materials Science;Alternative Energy;Battery Electrode Materials;Cathode Materials;Electrode Materials;Lithium-Ion Batteries;Materials Science
Mol File:12057-17-9.mol
LITHIUM MANGANESE OXIDE Structure
LITHIUM MANGANESE OXIDE Chemical Properties
Melting point >400 °C(lit.)
density 4.1g/cm3at 25℃
form Powder
Water Solubility Insoluble in water.
Exposure limitsACGIH: TWA 0.02 mg/m3; TWA 0.1 mg/m3
OSHA: Ceiling 5 mg/m3
NIOSH: IDLH 500 mg/m3; TWA 1 mg/m3; STEL 3 mg/m3
EPA Substance Registry SystemLithium manganese oxide (LiMn2O4) (12057-17-9)
Safety Information
WGK Germany 3
TSCA Yes
MSDS Information
ProviderLanguage
SigmaAldrich English
ALFA English
LITHIUM MANGANESE OXIDE Usage And Synthesis
Health HarzardManganese can cause serious lesions of the central nervous system, and lithium has damage to the gastrointestinal tract, kidneys and central nervous system. Use dust masks when there is dust in production, and use industrial gas masks with filters when the concentration is large. The production process should prevent dust. Staff undergo regular medical examinations.
Chemical Propertiesmonoclinic, a=0.4921 nm, b=0.8526 nm, c=0.9606 nm; prepared by reacting LiOH and γ-ΜnΟ2 in air at 400°C for several days or at 700°C for 24h; used in battery research [ROS91] [RIO92]
Physical propertiesUsually spinel phase, working voltage is 3.5~4.3 V, theoretical specific capacity is 148 mA h/g, but the actual is about 110 mA h/g, cathode density is 4.28 g/cm3, and its lithium/manganese molar ratio is 0.45 ~0.5.
UsesIt is used as anode materials of high-performance lithium ion battery.
benefitsLITHIUM MANGANESE OXIDE material is considered to be one of the most promising cathode materials for lithium-ion batteries due to its good stability, good overcharge resistance, low price, environmental friendliness, and good high-current charge-discharge performance.
General DescriptionThis product has been enhanced for energy efficiency.
SynthesisUsing manganese dioxide, manganese carbonate, manganese nitrate or manganese acetate and lithium hydroxide, lithium carbonate or lithium nitrate as raw materials, the composition and content of various materials are accurately analyzed, so that the molar ratio of lithium to manganese is in the range of 0.45 to 0.5. After the ball mill is evenly mixed, it is placed in a mold, pressed into a block shape on a hydraulic press, and placed in a high-temperature sintering furnace for sintering at a temperature of 600-800 °C.
4MnO2+Li2CO3→2LiMn2O4+CO2↑+0.5O2
4MnCO3+Li2CO3+1.5O2→2LiMn2O4+5CO2↑
4MnO2+2LiOH→2LiMn2O4+H2O+0.5O2
LITHIUM MANGANESE OXIDE Preparation Products And Raw materials
Raw materialsManganese dioxide-->Manganese carbonate-->Lithium carbonate-->Manganese triacetate dihydrate-->Manganese nitrate-->Lithium nitrate
Lithium sulfate Lithium titanate, nanopowder Lithium carbonate Lithium fluoride Dichromic acid LITHIUM COBALT(III) OXIDE Lithium hexafluorophosphate Electrolyte Silicon nitride Manganese dioxide LITHIUM MANGANESE OXIDE MANGANESE (II) OXIDE Lithium manganese oxide (Li2MnO3)

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