Patent application number | Description | Published |
20120070737 | BINDER COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, AND ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed are a binder composition for a rechargeable lithium battery including a cross-linked compound of polyacrylic acid substituted with an alkali cation and polyvinyl alcohol and an electrode and rechargeable lithium battery including the same. The cross-linked compound of polyacrylic acid and polyvinyl alcohol is obtained by heating polyacrylic acid and polyvinyl alcohol to effect a cross-linking reaction via esterification. The cross-linked compound of polyvinyl alcohol and polyacrylic acid substituted with an alkali cation may improve phase stability of a binder, and has high cross-linking ratio, thereby providing for excellent performance of a rechargeable lithium battery. | 03-22-2012 |
20120135307 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PRODUCING NEGATIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed are a negative active material of a rechargeable lithium battery and a rechargeable lithium battery including a negative electrode, and the negative electrode includes a negative active material layer including a negative active material represented by the following Chemical Formula 1. | 05-31-2012 |
20120177989 | NEGATIVE ACTIVE MATERIAL COMPOSITION, METHOD OF PREPARING NEGATIVE ELECTRODE PLATE BY USING NEGATIVE ACTIVE MATERIAL COMPOSITION, AND LITHIUM SECONDARY BATTERY MANUFACTURED BY USING THE NEGATIVE ACTIVE MATERIAL COMPOSITION - A negative active material composition includes a negative active material, a binder, and a solvent, in which the solvent includes an aqueous solvent and an organic solvent. A method of preparing a negative electrode plate uses the negative active material composition. A lithium battery is manufactured using the negative active material composition, and has good lifetime characteristics due to the formation of pores in the electrode plate. | 07-12-2012 |
20130252110 | NEGATIVE ACTIVE MATERIAL AND LITHIUM BATTERY CONTAINING THE SAME - A negative active material includes a silicon-based particle and a crystalline carbonaceous material, the crystalline carbonaceous material including a graphite particle and a carbonaceous nano-sheet. | 09-26-2013 |
20140050975 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND NEGATIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed is a negative active material that includes active material primary particles; a conductive material; and a composite binder. | 02-20-2014 |
20140239239 | BINDER COMPOSITION FOR SECONDARY BATTERY, ANODE INCLUDING THE BINDER COMPOSITION, AND LITHIUM BATTERY INCLUDING THE ANODE - A binder composition for a secondary battery, and an anode and a lithium battery that include the binder composition are disclosed. The binder composition may include: first nanoparticles having a glass transition temperature of about 60° C. or greater and an average particle diameter of about 100 nm or less; and a first polymer binder having a glass transition temperature of about 20° C. or less. | 08-28-2014 |
20140349180 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, NEGATIVE ELECTRODE INCLUDING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING NEGATIVE ELECTRODE - Disclosed are a negative active material for a rechargeable lithium battery including a silicon-based material and graphite, wherein an average particle diameter (D50) of the graphite may range from about 5 μm to about 15 μm, and a Raman peak intensity ratio (I | 11-27-2014 |
20150162575 | RECHARGEABLE BATTERY AND MANUFACTURING METHOD OF THE SAME - A rechargeable battery that may be manufactured and used in various shapes is disclosed. An embodiment of the rechargeable battery includes: an electrode assembly including a pair of electrodes on respective surfaces of a separator and a pair of lead tabs extending from the pair of electrodes; and a pouch receiving the electrode assembly and having the lead tabs protruding out to one side, each of the electrodes including a first bending part including a molded plate including active material particles and a metal fiber yarn of a current collector, and the pouch including a second bending part superimposed on the electrodes in parallel and including a molded sheet having a shape corresponding to that of the first bending part. | 06-11-2015 |