Spinel Electrodes from the Li‐Mn‐O System for Rechargeable Lithium Battery Applications

Abstract

The electrochemical and structural properties of spinel phases in the Li-Mn-O system are discussed as insertion electrodes for rechargeable lithium batteries. The performance of button-type cells containing electrodes from the Li20 9 yMnOz system, e.g., the stoichiometric spinel Li4Mn5012 (y = 2.5) and the defect spinel Li2Mn,O9 (y = 4.0), is highlighted and compared with a cell containing a standard LiMn204 spinel electrode.

Lithium ion adsorption–desorption properties on spinel Li4Mn5O12 and pH-dependent ion-exchange model

“…2. All the peaks can be readily indexed to cubic phase [Fd-3m (227)] with a lattice parameter of 8.158 and 8.075 Å, which is consistent with the reported values [2,25]. Lattice parameters changed from 8.158 to 8.075 Å after acid treatment indicating a lattice contraction which was caused by H atoms replace the Li atoms.…”

“…It can also reduce the charge for seawater desalination by producing lithium compound. Li 4 Mn 5 O 12 is one of the Li ion-sieve precursors, first synthesized by Thackeray et al [2], and attracted great interest as a potential 3 V cathode materials and lithium ion sieve [3][4][5][6][7][8][9]. Many methods have been used to synthesize Li 4 Mn 5 O 12 , such as solid-phase reaction [10], hydrothermal reaction [11], and sol-gel reaction [3].…”

Effect of local structural changes on rate capability of LiNi 0.5 Mn 1.5 O 4−δ cathode material for lithium ion batteries

“…Until now, X-ray diffraction analysis has been widely used to characterize cathode materials for lithium ion batteries [13,[20][21][22][23][24][25], providing information about average structure changes in long-range order. However, electrochemical performance of cathode materials is mostly governed by local structural variations around transition metal cations during charge and discharge.…”

Local Lattice Distortion Caused by Short Range Charge Ordering in LiMn2O4

“…LiMn 2 O 4 has been studied as a candidate of cathod materials in secondary lithium ion batteries, [6][7][8][9][10] and as a frustrated magnetic materials. 11,12) This compound has a cubic spinel structure with space group of Fd " 3m at room temperature.…”