Time filter

Source Type

Patent
Advanced Lithium Electrochemistry Co. | Date: 2014-05-28

A preparation method of a battery composite material includes steps of providing phosphoric acid, iron powder, a carbon source and a first reactant, processing a reaction of the phosphoric acid and the iron powder to produce a first product, calcining the first product to produce a precursor, among which the formula of the precursor is written by Fe_(7)(PO_(4))_(6), and processing a reaction of the precursor, the carbon source and the first reactant to get a reaction mixture and calcining the reaction mixture to produce the battery composite material. As a result, the present invention achieves the advantages of reducing grind time of fabricating processes, so that the prime cost, the time cost, and the difficulty of fabricating are reduced.


Patent
Advanced Lithium Electrochemistry Co. | Date: 2015-07-08

A preparation method of a battery composite material includes steps of providing phosphoric acid, manganese carbonate, water and a first reactant; processing a reaction of the phosphoric acid, the manganese carbonate and the water to produce a first product; calcining the first product to produce a precursor, which is written by Mn_(2)P_(2)O_(7); processing a reaction of the precursor and at least the first reactant to get a reaction mixture, and then calcining the reaction mixture to produce the battery composite material. As a result, the present invention achieves the advantages of reducing the times of the reduction-oxidation reaction, so that the stability of the processes is enhanced, and the difficulty of the processes is reduced.


Patent
Advanced Lithium Electrochemistry Co. | Date: 2014-10-29

A cathode material with oxygen vacancy is provided. The cathode material includes a lithium metal phosphate compound having a general formula LiMPO_(4-Z), wherein M represents at least one of a first-row transition metal, and 0.001 z 0.05.


Patent
Advanced Lithium Electrochemistry Co. | Date: 2014-05-08

A preparation method of a battery composite material includes steps of providing phosphoric acid, a first metal source, a second metal source and water, processing a reaction of the first metal source, the second metal source, the phosphoric acid and the water to produce a first product, calcining the first product to produce a first precursor or a second precursor, among which each of the first precursor and the second precursor is a solid-solution containing first metal and second metal, and processing a reaction of the first precursor or the second precursor, and a first reactant to obtain a reaction mixture, and then calcining the reaction mixture to produce the battery composite material. As a result, the battery product has two stable charging and discharging platforms, such that the present invention achieves the advantages of enhancing the stability and the electric performance.


Patent
Advanced Lithium Electrochemistry Co. | Date: 2016-04-20

A cathode material with oxygen vacancy is provided. The cathode material includes a lithium metal phosphate compound having a general formula LiMPO_(4-Z), wherein M represents at least one of a first-row transition metal, and 0.001z0.05.


Patent
Advanced Lithium Electrochemistry Co. | Date: 2014-05-08

A preparation method of a battery composite material at least includes the following steps. Firstly, an iron compound, phosphoric acid, a manganese compound, a lithium compound and a carbon source are provided. Then, the phosphoric acid is added to a mixture of the iron compound and deionized water while stirring to form a first phosphate solution, a first amount of the manganese compound is added to the first phosphate solution, and the manganese compound and the first phosphate solution are continuously reacted for a first time period, so that a first product solution is formed. Then, a reaction between the first product solution, the carbon source and the lithium compound is carried out to form a precursor. Then, the precursor is thermally treated to form the battery composite material, wherein the battery composite material has a chemical formula: LiFe_(x)Mn_(1-x)PO_(4). Since the product powder is not subjected to aggregation during the thermal treatment process, the electric performance of the battery is enhanced.


Patent
Advanced Lithium Electrochemistry Co. | Date: 2016-03-16

A preparation method of a battery composite material at least includes the following steps. Firstly, an iron compound, phosphoric acid, a manganese compound, a lithium compound and a carbon source are provided. Then, the phosphoric acid is added to a mixture of the iron compound and deionized water while stirring to form a first phosphate solution, a first amount of the manganese compound is added to the first phosphate solution, and the manganese compound and the first phosphate solution are continuously reacted for a first time period, so that a first product solution is formed. Then, a reaction between the first product solution, the carbon source and the lithium compound is carried out to form a precursor. Then, the precursor is thermally treated to form the battery composite material, wherein the battery composite material has a chemical formula: LiFe_(x)Mn_(1-x)PO_(4). Since the product powder is not subjected to aggregation during the thermal treatment process, the electric performance of the battery is enhanced.


Patent
Advanced Lithium Electrochemistry Co. | Date: 2014-01-22

A cathode material with double carbon coatings is provided. The cathode material includes a lithium metal phosphate matrix, a first carbon coating, and a second carbon coating. The first carbon coating is coated on the lithium metal phosphate matrix. The second carbon coating is coated on the first carbon coating. The carbon source of the first carbon coating is a carbohydrate or a water-soluble macromolecule compound having relatively smaller molecular weight. The carbon source of the second carbon coating is a macromolecule compound having relatively higher molecular weight.


Patent
Advanced Lithium Electrochemistry Co. | Date: 2015-04-15

A composition for use in an electrochemical redox reaction is described. The composition may comprise a material represented by a general formula M_(y)XO_(4) or A_(x)M_(y)XO_(4), where each of A (where present), M, and X independently represents at least one element, O represents oxygen, and each of x (where present) and y represent a number, and an oxide of at least one element, wherein the material and the oxide are cocrystalline, and/or wherein a volume of a crystalline structural unit of the composition is larger than a volume of a crystalline structural unit of the material alone. An electrode comprising such a composition is also described, as is an electrochemical cell comprising such an electrode. A process of preparing a composition for use in an electrochemical redox reaction is also described.


Patent
Advanced Lithium Electrochemistry Co. | Date: 2016-03-16

A method for preparing battery composite material, comprising the steps: providing phosphoric acid, a first metal source, a second metal source and water (S100); and the first metal source, the second metal source and the phosphoric acid reacting with water to generate a first product (S200); calcining the first product to generate a first precursor or a second precursor (S300), wherein the first precursor and the second precursor are solid solution containing a first metal and a second metal; and the first precursor and the second precursor reacting with a first rcactant, then the reaction mixture being calcined to generate the battery composite material (S400). Therefore, the battery products have two stable redox charge and discharge platforms, and the stability and electrical performance of the products are effectively improved.

Loading Advanced Lithium Electrochemistry Co. collaborators
Loading Advanced Lithium Electrochemistry Co. collaborators