Preparation and characterization of LiMn2−yCoyO4 spinels by low heating solid state coordination method

Synthesis of LiV3O8 nanocrystallites as cathode materials for lithium ion batteries

“…In the present paper, LiV 3 O 8 nanocrystallites have been prepared by a new method based on the low heating solid-state reaction. It has confirmed that the low heating solid-state reaction method is a simple and effective method to fabricate a number of chemical compounds (Huang et al, 2005). The experimental procedure and electrochemical properties of the LiV 3 O 8 nanomaterials were investigated further.…”

Rapid preparation and electrochemical behavior of carbon-coated Li3V2(PO4)3 from wet coordination

“…However, time-consuming and high-temperature calcinations usually lead to abrupt particle growth [18], which worsens the electrochemical capability of the product. As one of low-temperature synthetic route, solid-state coordination has been confirmed to be a simple and effective method to fabricate a number of chemical compounds such as cluster compounds, coordination compounds and cathode materials [19,20]. In present work, an improved solid-state coordination has been chosen to prepare carbon-coated Li 3 V 2 (PO 4 ) 3 .…”

Electrochemical properties of spinel LiCo Mn2−O4 prepared by sol–gel process

“…Unfortunately, some shortcomings such as fast capacity fading and inferior electrochemical capabilities limit its application in commercial cells. It is reported that doping a few metal ions such as Co 3+ , Cr 3+ , Zn 2+ , Ni 2+ and Mg 2+ in LiMn 2 O 4 will overcome the capacity fading and obviously improve the electrochemical properties because Jahn-Teller distortion, Mn 3+ disproportionation reaction and the dissolution of manganese in electrolyte will be restrained in this action [2][3][4].…”

“…Hence, the synthesis temperature can be reduced and the reaction time will be shortened. Moreover, sol-gel method has other advantages, just as controllable stoichiometric ratio, high pure phase of the product, small particle size, narrow particle size distribution and large specific surface area, which are helpful to increase capacity and to improve the cycling performance [2,4,6]. In this work, LiCo x Mn 2−x O 4 powders were prepared by sol-gel technique, whose structure and electrochemical properties were investigated.…”