Patent application number | Description | Published |
20120270103 | Negative active for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same - A negative electrode for a lithium rechargeable battery includes a current collector, and a negative active material layer on the current collector, the negative active material layer including a silicon-based active material, a carbon-based active material, and an aqueous additive including an aqueous binder and an agent for increasing viscosity, the silicon-based active material being coated with an organic binder, wherein the aqueous additive is between portions of the silicon-based active material, between portions of the carbon-based active material, or between the silicon-based active material and the carbon-based active material. | 10-25-2012 |
20130130112 | SILICON BASED SHAPE MEMORY ALLOY NEGATIVE ACTIVE MATERIAL, NEGATIVE ACTIVE MATERIAL COMPOSITION INCLUDING SAME, RECHARGEABLE LITHIUM BATTERY INCLUDING SAME, AND METHOD OF PREPARING SAME - A silicon-based shape memory alloy negative active material includes a silicon-based material precipitated on a Ni | 05-23-2013 |
20130196233 | NEGATIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING NEGATIVE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY INCLUDING NEGATIVE ELECTRODE - A negative active material for a rechargeable lithium battery includes a Si—Al—Fe alloy represented by Formula 1. The Si—Al—Fe alloy includes a Si phase and an alloy phase, and the alloy phase includes Si, Al, and Fe in a ratio of atomic percentages of about 3:3:2: | 08-01-2013 |
20130202967 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A negative active material for a rechargeable lithium battery includes a matrix including an Si—X based alloy, where X is not Si and is selected from alkali metals, alkaline-earth metals, Group 13 elements, Group 14 elements, Group 15 elements, Group 16 elements, transition elements, rare earth elements, or combinations thereof; silicon dispersed in the matrix; and oxygen in the negative active material, the oxygen being included at 20 at % or less based on the total number of atoms in the negative active material. A rechargeable lithium battery includes the negative active material. | 08-08-2013 |
20130216912 | ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD OF MANUFACTURING THE ELECTRODE, AND LITHIUM SECONDARY BATTERY INCLUDING THE ELECTRODE - An electrode for a lithium secondary battery includes a silicon-based alloy, and has a surface roughness of about 1 to about 10 μm and a surface roughness deviation of 5 μm or less. A method of manufacturing the electrode includes mixing an electrode composition, milling the composition, coating the milled composition on a current collector, and drying the milled composition. A lithium secondary battery includes the electrode. | 08-22-2013 |
20130266865 | NEGATIVE ACTIVE MATERIAL, LITHIUM BATTERY INCLUDING THE MATERIAL, AND METHOD FOR MANUFACTURING THE MATERIAL - A negative active material having controlled particle size distribution of silicon nanoparticles in a silicon-based alloy, a lithium battery including the negative active material, and a method of manufacturing the negative active material are disclosed. The negative active material may improve capacity and lifespan characteristics by inhibiting (or reducing) volumetric expansion of the silicon-based alloy. The negative active material may include a silicon-based alloy including: a silicon alloy-based matrix; and silicon nanoparticles distributed in the silicon alloy-based matrix, wherein a particle size distribution of the silicon nanoparticles satisfies D10≧10 nm and D90≦75 nm. | 10-10-2013 |
20140023927 | SILICON ALLOY BASED NEGATIVE ACTIVE MATERIAL AND COMPOSITION INCLUDING SAME AND METHOD OF PREPARING SAME AND LITHIUM RECHARGEABLE BATTERY - A silicon alloy-based negative active material includes a particle including a core including a silicon alloy-based material, and a coating layer including an organic binder. | 01-23-2014 |
20140038051 | NEGATIVE ACTIVE MATERIAL FOR LITHIUM BATTERY, METHOD OF PREPARING THE NEGATIVE ACTIVE MATERIAL, AND LITHIUM BATTERY EMPLOYING THE NEGATIVE ACTIVE MATERIAL - A negative active material for a lithium battery with an improved cycle characteristic and capacity retention rate, and the negative active material comprises a plurality of particles comprising a plurality of first particles comprising Si, Ti, and Ni; and composite particles comprising a plurality of second particles in which at least one element selected from the group consisting of Cu, Fe, Ni, Au, Ag, Pd, Cr, Mn, Ti, B, and P is partially or completely deposited on surface(s) of other of first particles, a method of preparing the negative active material, and a lithium battery including a negative electrode including the negative active material. | 02-06-2014 |
20140065483 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A positive active material for a rechargeable lithium battery includes a nickel-based composite oxide represented by the following Chemical Formula 1, wherein the nickel-based composite oxide includes an over lithiated oxide and non-continuous portions of a lithium nickel cobalt manganese oxide on a surface of the over lithiated oxide. | 03-06-2014 |
20150020878 | ANTI-REFLECTIVE COATING FILM, SOLAR CELL INCLUDING THE ANTI-REFLECTIVE COATING FILM, AND METHOD OF PREDICTING STRENGTH OF THE ANTI-REFLECTIVE COATING FILM FOR THE SOLAR CELL - An anti-reflective coating film is formed from a coating solution composition that includes a silane-based precursor. When measured via Fourier Transform Infrared (FT-IR) Spectroscopy using a wavelength of 1064 nm, the coating solution composition exhibits a peak intensity ratio I | 01-22-2015 |