Patent application number | Description | Published |
20090098460 | NEGATIVE PLATE FOR LITHIUM ION BATTERIES AND A METHOD OF PREPARING THE SAME - In one aspect, a negative plate for a battery comprises a negative current collector coated with a negative active material. The negative current collector comprises a conductive non-woven fabric. In another aspect, a method for preparing a negative plate for a battery comprises coating a negative active material onto a negative current collector. The negative current collector comprises a conductive non-woven fabric. In yet another aspect, a battery comprises a negative plate. The negative plate comprises a negative current collector coated with a negative active material. The negative current collector comprises a conductive non-woven fabric. | 04-16-2009 |
20090148765 | LITHIUM IRON(II) PHOSPHATE CATHODE ACTIVE MATERIAL - Lithium iron(II) phosphate containing cathode active material having lithium iron(II) phosphate particles and nano-carbons and methods of preparation thereof. In addition, the cathode active material includes iron phosphide and can be prepared under an inert atmosphere and sintered at high temperatures. The material mixture includes lithium compound, iron compound, organic carbon, phosphorous and nano-iron particles resulting in an electrode with higher unit capacity and maintenance rate. | 06-11-2009 |
20090220858 | Composite Compound With Mixed Crystalline Structure - Described is a composite lithium compound having a mixed crystalline structure. Such compound was formed by heating a lithium compound and a metal compound together. The resulting mixed metal crystal exhibits superior electrical property and is a better cathode material for lithium secondary batteries. | 09-03-2009 |
20090302283 | TRANSITION METAL HYDROXIDE AND OXIDE, METHOD OF PRODUCING THE SAME, AND CATHODE MATERIAL CONTAINTING THE SAME - Transition metal hydroxide and oxide, method of producing the same, and cathode material containing the same are disclosed. One method includes coupling an alkaline solution to a transition metal salt solution under an inert gas atmosphere, whereby the alkaline solution includes an additive. A transition metal oxide may be prepared by heating the transition metal hydroxide under an oxygen gas atmosphere. Cathode materials for lithium-ion batteries may be prepared incorporating the transition metal hydroxide and oxide embodiments disclosed herein. | 12-10-2009 |
20110073178 | ELECTRICALLY CONDUCTIVE PASTE, SOLAR CELL CONTAINING SAME AND METHOD - An electrically conductive paste for a solar cell comprises a metal powder, an inorganic adhesive, an aqueous adhesive and an auxiliary agent. The aqueous adhesive comprises a water-soluble polymer. | 03-31-2011 |
20110126904 | BACKPLANE FOR SOLAR CELL AND SOLAR CELL HAVING THE SAME - A solar cell and a backplane for a solar cell, where the backplane comprises a metal substrate having first and second opposing major surfaces, and an insulating layer on at least one major surface of the metal substrate. The insulating layer comprises a resin selected from the group consisting of phenolic resins, epoxy resins, amino resins, and combinations thereof. | 06-02-2011 |
20110223491 | LITHIUM TITANATE COMPOSITE MATERIAL, PREPARATION METHOD THEREOF, NEGATIVE ACTIVE SUBSTANCE AND LITHIUM ION SECONDARY BATTERY CONTAINING THE SAME - Provided is a composite material having spinel structured lithium titanate, wherein the lithium titanate has a microcrystalline grain diameter of about 36-43 nm and an average particle diameter of about 1-3 μm. The composite material comprises a small amount of TiO | 09-15-2011 |
20120015505 | METHOD AND DEVICE FOR PREPARING COMPOUND SEMICONDUCTOR FILM - The present invention discloses a method and a device for preparing a compound semiconductor film. The method comprises the steps of: providing a substrate above at least an evaporation source in a vacuum condition; heating a source material contained in the evaporation source so that the source material is vapor-deposited on the substrate; and taking out the substrate under protection of an inert gas. The substrate may be rotated around an axis of a plane where the evaporation source is positioned, and the substrate is tilted by a predetermined angle with respect to the plane. The compound semi-conductive film thus prepared has a uniform thickness with a larger area. The method provides a simplified process and enhanced efficiency. | 01-19-2012 |