Published March 2003
| Version v1
Journal article
IR spectroscopy and electrochemical properties of lithium-doped spinel phase Li1+xMn2-xO4 prepared by a simplified procedure
Creators
- 1. Univ. Tsingua, Pekin (China)
- 2. Uchitel'skij Kolledzh Zhangzhu, Zhangzhu (China)
Description
A simple method for synthesizing Li1+xMn2-xO4 directly from lithium and manganese acetates is suggested. The reaction mechanism was studies by the method of IR spectroscopy. According to the data obtained Mn-O bonds in Li-doped spinel are stronger, while its structure is more stable than that of pure spinel. The material prepared consists of well-crystallized small particles with a narrow size distribution function. At x = 0.06 it features a high initial reversible capacity of 127.6 mA h/g; after 100 cycles the capacity amounted to 107 mA h/g
Abstract (Russian)
Предложена простая методика синтеза Li1+xMn2-xO4 непосредственно из ацетатов лития и марганца. Механизм реакции исследован методом ИК-спектроскопии. По данным в допированной Li-шпинели связи Mn-O прочнее, а ее структура стабильнее, чем у чистой шпинели. Полученный материал состоит из хорошо кристаллизованных небольших частиц с узкой функцией распределения по размеру. При х = 0.06 он имеет высокую начальную обратимую емкость 127.6 мА ч/г; после 100 циклов емкость составила 107 мА ч/гAdditional details
Additional titles
- Original title (Russian)
- IK-спектроскопия и электрохимические свойства допированной литием шпинельной фазы Ли
Publishing Information
- Journal Title
- Ehlektrokhimiya
- Journal Volume
- 39
- Journal Issue
- 3
- Journal Page Range
- p. 305-309
- ISSN
- 0424-8570
- CODEN
- ELKKAX
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 36037796
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CHEMICAL COMPOSITION; CHEMICAL PREPARATION; CHEMICAL REACTION KINETICS; CUBIC LATTICES; ELECTROCHEMISTRY; INFRARED SPECTRA; LATTICE PARAMETERS; LITHIUM OXIDES; MANGANESE OXIDES; PHASE STUDIES
- Descriptors DEC
- ALKALI METAL COMPOUNDS; CHALCOGENIDES; CHEMISTRY; CRYSTAL LATTICES; CRYSTAL STRUCTURE; KINETICS; LITHIUM COMPOUNDS; MANGANESE COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; REACTION KINETICS; SPECTRA; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Notes
- 14 refs., 5 figs., 2 tabs.