LITHIUM MANGANESE(III,IV) OXIDE
lithium manganese(iii,iv) oxide
CAS: 12057-17-9
Molecular Formula: LiMn2O4
LITHIUM MANGANESE(III,IV) OXIDE - Names and Identifiers
| Name | lithium manganese(iii,iv) oxide |
| Synonyms | Lithium manganate LITHIUM MANGANESE OXIDE LITHIUM MANGANESE(III,IV) OXIDE lithium manganese(iii,iv) oxide Lithium manganese oxide (LiMn2O4) lithium dioxido-(oxomanganiooxy)manganese LITHIUM MANGANESE(III,IV) OXIDE, ELECTRO -CHEMICAL GRADE |
| CAS | 12057-17-9 |
| InChI | InChI=1/Li.2Mn.4O/q+1;;+1;;;2*-1/rLi.Mn2O4/c;3-1-6-2(4)5/q+1;-1 |
LITHIUM MANGANESE(III,IV) OXIDE - Physico-chemical Properties
| Molecular Formula | LiMn2O4 |
| Molar Mass | 180.81 |
| Density | 4.1g/cm3at 25℃ |
| Melting Point | >400°C(lit.) |
| Water Solubility | Insoluble in water. |
| Appearance | Powder |
| Exposure Limit | ACGIH: TWA 0.02 mg/m3; TWA 0.1 mg/m3OSHA: Ceiling 5 mg/m3NIOSH: IDLH 500 mg/m3; TWA 1 mg/m3; STEL 3 mg/m3 |
| Storage Condition | Room Temprature |
| MDL | MFCD01114233 |
| Physical and Chemical Properties | It is usually spinel phase, the working voltage is 3.5~4.3V, the theoretical specific capacity is 148 · h/g, and the actual is about 110 · h/g, the cathode density is 4.28g/cm3, the lithium/manganese molar ratio is 0.45 to 0.5. |
LITHIUM MANGANESE(III,IV) OXIDE - Risk and Safety
| WGK Germany | 3 |
| TSCA | Yes |
LITHIUM MANGANESE(III,IV) OXIDE - Nature
Open Data Verified Data
usually spinel phase, operating voltage 3. 5~4. 3V, the theoretical specific capacity of 148mA.h/g, which is actually about 110 mA-h/g, the cathode density is 4.28g/C1/13, and the lithium/manganese molar ratio is 0.45 to 0.5.
Last Update：2024-01-02 23:10:35
LITHIUM MANGANESE(III,IV) OXIDE - Preparation Method
Open Data Verified Data
synthesis method: manganese dioxide, manganese carbonate, manganese nitrate or manganese acetate and lithium hydroxide, lithium carbonate or lithium nitrate are used as raw materials to accurately analyze the composition and content of various materials, make the molar ratio of lithium to manganese at 0. 45~0.5 range, after ball milling and mixing evenly, placed in the mold, pressed into a block on the oil press, placed in a high temperature sintering furnace, the temperature is 600~800, after 36 hours of sintering, the milled ball mill was removed, passed through a 300 mesh split screen, and the product was collected.
Last Update：2022-01-01 11:02:12
LITHIUM MANGANESE(III,IV) OXIDE - Use
Open Data Verified Data
high-performance cathode materials for lithium ion batteries.
Last Update：2022-01-01 11:02:11
LITHIUM MANGANESE(III,IV) OXIDE - Safety
Open Data Verified Data
packed in a wooden or iron drum lined with a polyethylene plastic bag. Should be stored in a dry, ventilated warehouse. Pay attention to moisture-proof, do not store and mix with acids and oxidants. When there is a fire, it can be suppressed by water, sand, and fire. Toxicity and protection: manganese can cause serious lesions of the central nervous system, lithium on the gastrointestinal tract, kidney and central nervous system damage. Dust masks are used when there is dust in the production. When the concentration is large, industrial gas masks with filters are used. Dust should be prevented in the production process. The staff had regular medical examinations.
Last Update：2022-01-01 11:02:12
LITHIUM MANGANESE(III,IV) OXIDE - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| overview | lithium permanganate is a dark purple cubic crystal, decomposed at 190 ℃. Soluble in water. Decompose in alkali. Use: Used as reagent and oxidant. |
| application | lithium manganate cathode material is considered to be one of the cathode materials with the most development potential due to its good stability, good overcharge resistance, low price, environmental friendliness and good high current charge and discharge performance, and is expected to become a commercial cathode material for power batteries. |
| preparation | high temperature solid phase synthesis method is simple to operate and easy to produce industrially. it is a common method for synthesizing lithium manganate. However, the material prepared by this method has large particle size, uneven distribution, unsatisfactory electrochemical performance, long reaction time and high reaction temperature, generally ranging from 750 ℃ to 800 ℃. The traditional high-temperature solid-phase method to prepare lithium manganate is prepared by mechanically mixing lithium compounds and manganese compounds in a certain proportion, grinding or ball milling, and then roasting at high temperature. Commonly used manganese-containing raw materials include chemical manganese dioxide (CMD), electrolytic manganese dioxide (EMD) and manganese salts, and lithium-containing materials include lithium carbonate, lithium hydroxide and lithium nitrate. Although the process of high temperature solid phase reaction is simple and easy to realize industrial application, the reaction temperature is high, the energy consumption is high, and the synthesized material particles are large, the uniformity is poor, and the specific energy is low. Therefore, in recent years, the solid phase synthesis method has a new development, namely the solid phase coordination reaction method. Studies have shown that adding dispersants or sintering with segments can improve the properties of the material. |
| solubility in water (g/100ml) | dissolved grams per 100ml of water: 71.4g/20 ℃ |
| toxicity | manganese can cause serious diseases of the central nervous system, and lithium can damage the gastrointestinal tract, kidneys and central nervous system. Dust masks are used when there is dust in production. When the concentration is large, industrial gas masks with filters are used. Dust should be prevented in the production process. Regular medical examination of staff. |
| use | high performance lithium ion battery cathode material. |
| Production method | The synthesis method uses manganese dioxide, manganese carbonate, manganese nitrate or manganese acetate and lithium hydroxide, lithium carbonate or lithium nitrate as raw materials to accurately analyze the composition and content of various materials, so that the molar ratio of lithium to manganese is in the range of 0.45~0.5. After being evenly mixed by ball milling, it is placed in a mold and pressed into blocks on a hydraulic press, place it in a high-temperature sintering furnace for sintering, the temperature is 600~800 ℃, and after sintering for a total of 36 h, take out the crushing ball mill, pass through a 300 mesh sample sieve, and collect the product. Its synthesis 4MnO2 Li2CO3 → 2LiMn2O4 CO2 ↑ 0.5O24MnCO3 Li2CO3 1.5O2 → 2LiMn2O4 5CO2 ↑ 4MnO2 2LiOH → 2LiMn2O4 H2O 0.5O2 |
Last Update：2024-04-10 22:29:15
Supplier List
Product Name: Lithium Manganese(Iii,IV) Oxide Visit Supplier Webpage Request for quotation
CAS: 12057-17-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
CAS: 12057-17-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
Product Name: Lithium Manganese(Iii,IV) Oxide Visit Supplier Webpage Request for quotation
CAS: 12057-17-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
CAS: 12057-17-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
View History