Method of producing silicon doped LiMn2O4 lithium ion battery anode material
The invention discloses a preparation method of Si doping LiMn2O4 lithium ion battery anode material. The invention is characterized in that: take manganese salt, lithium salt, and organosilane as raw materials, and take ethanol as solvent to obtain homogeneous solution of LiMn, Si according to the...
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| creator | HUANG BAIYONG GAO SHANMIN XU PU XU YANBIN WANG YUBAO KONG LINGYAN |
| description | The invention discloses a preparation method of Si doping LiMn2O4 lithium ion battery anode material. The invention is characterized in that: take manganese salt, lithium salt, and organosilane as raw materials, and take ethanol as solvent to obtain homogeneous solution of LiMn, Si according to the molar ratio(x is less than or equal to 0.1) of LiMn2-xSixO4, so as to prepare uniform precursor; and then prepare Si doping LiMn2O4 lithium ion battery anode material at high temperature through the method of solid-state incremental heating. The invention can settle the common problem of decreased theoretical capacity of spinel lithium manganese caused by ion doping, and the product prepared by the invention has structured crystal form, single phase, no silicon dioxide impurity and settles the difficulty of effective si- ion doping technically. |
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The invention is characterized in that: take manganese salt, lithium salt, and organosilane as raw materials, and take ethanol as solvent to obtain homogeneous solution of LiMn, Si according to the molar ratio(x is less than or equal to 0.1) of LiMn2-xSixO4, so as to prepare uniform precursor; and then prepare Si doping LiMn2O4 lithium ion battery anode material at high temperature through the method of solid-state incremental heating. 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The invention is characterized in that: take manganese salt, lithium salt, and organosilane as raw materials, and take ethanol as solvent to obtain homogeneous solution of LiMn, Si according to the molar ratio(x is less than or equal to 0.1) of LiMn2-xSixO4, so as to prepare uniform precursor; and then prepare Si doping LiMn2O4 lithium ion battery anode material at high temperature through the method of solid-state incremental heating. 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The invention is characterized in that: take manganese salt, lithium salt, and organosilane as raw materials, and take ethanol as solvent to obtain homogeneous solution of LiMn, Si according to the molar ratio(x is less than or equal to 0.1) of LiMn2-xSixO4, so as to prepare uniform precursor; and then prepare Si doping LiMn2O4 lithium ion battery anode material at high temperature through the method of solid-state incremental heating. The invention can settle the common problem of decreased theoretical capacity of spinel lithium manganese caused by ion doping, and the product prepared by the invention has structured crystal form, single phase, no silicon dioxide impurity and settles the difficulty of effective si- ion doping technically.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM ELECTRICITY INORGANIC CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Method of producing silicon doped LiMn2O4 lithium ion battery anode material |
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