Patent application number | Description | Published |
20080309216 | LIGHT EMISSION DEVICE AND DISPLAY DEVICE USING THE LIGHT EMISSION DEVICE AS A LIGHT SOURCE - A light emission device in which a light emission unit has an improved structure and a display device using the light emission device as a light source. The light emission device includes first and second substrates facing each other with a predetermined distance therebetween, an electron emission unit located on one side of the first substrate, and a light emission unit located on one side of the second substrate. The electron emission unit includes a plurality of electron emission elements. The light emission unit includes at least one phosphor layer and a reflection layer spaced apart from the phosphor layer with a barrier disposed between the phosphor layer and the reflection layer. | 12-18-2008 |
20090021142 | LIGHT EMISSION DEVICE AND DISPLAY DEVICE - A light emission device and a display device provided with the light emission device are provided. The light emission device includes first and second substrates opposing each other. An electron emission unit is arranged on the first substrate. A light emission unit is provided on the second substrate and has an active area and an inactive area surrounding the active area. An arcing preventing member is formed on the inactive area. The arcing preventing member is formed to satisfy the condition: 0.3≦H/W≦1.0, where W is a width of the active area and H is a height of the arcing preventing member. | 01-22-2009 |
20090167154 | WHITE PHOSPHOR, LIGHT EMISSION DEVICE INCLUDING THE SAME, AND DISPLAY DEVICE INCLUDING THE LIGHT EMISSION DEVICE - A white phosphor, a light emission unit including the white phosphor, and a display device including the light emission unit are provided. The white phosphor comprises a green phosphor including a Tb-doped oxide host material, a blue phosphor and a red phosphor. The green phosphor doped with Tb is used as an activator, and has a wavelength which does not overlap with a wavelength of the blue phosphor, thereby improving color purity of the light emission device. | 07-02-2009 |
20130089783 | Negative Active Material and Lithium Battery Containing the Negative Active Material - A negative active material and a lithium battery including the same are disclosed. Due to the inclusion of silicon nanowires formed on a spherical carbonaceous base material, the negative active material may increase the capacity and cycle lifespan characteristics of the lithium battery. | 04-11-2013 |
20130089784 | NEGATIVE ACTIVE MATERIAL AND LITHIUM BATTERY CONTAINING THE NEGATIVE ACTIVE MATERIAL - A negative active material and a lithium battery including the negative active material. The negative active material includes primary particles, each including: a crystalline carbonaceous core having a surface on which silicon-based nanowires are disposed; and an amorphous carbonaceous coating layer that is coated on the crystalline carbonaceous core so as not to expose at least a portion of the silicon-based nanowires. Due to the inclusion of the primary particles, an expansion ratio is controlled and conductivity is provided and thus, a formed lithium battery including the negative active material may have improved charge-discharge efficiency and cycle lifespan characteristics. | 04-11-2013 |
20130288117 | NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed is a negative electrode for a rechargeable lithium battery that includes a current collector and a negative active material layer on the current collector, the negative active material layer having an active mass density in a range of about 1.6 g/cc to about 2.1 g/cc and including graphite and a pore-forming agent. | 10-31-2013 |
20140045060 | COMPOSITE ANODE ACTIVE MATERIAL, ANODE AND LITHIUM BATTERY EACH INCLUDING THE COMPOSITE ANODE ACTIVE MATERIAL, AND METHOD OF PREPARING THE COMPOSITE ANODE ACTIVE MATERIAL - In an aspect, a composite anode active material including a composite core; and a coating layer covering at least a region of the composite core, wherein the composite core comprises a carbonaceous substrate; and a nanostructure disposed on the substrate, and the coating layer includes a metal oxide; an anode and a lithium battery each including the composite anode active material; and a method of preparing the composite anode active material are provided. | 02-13-2014 |
20140050984 | COMPOSITE ANODE ACTIVE MATERIAL, ANODE AND LITHIUM BATTERY COMPRISING THE MATERIAL, AND METHOD OF PREPARING THE SAME - A composite anode active material, an anode and a lithium battery each including the composite anode active material, and a method of preparing the composite anode active material. The composite anode active material includes a composite core, and a coating layer covering at least a region of the composite core, wherein the composite core includes a carbonaceous substrate and a metal/semi-metal nanostructure on the carbonaceous substrate, the coating layer is more predominant on the nanostructure than on the carbonaceous substrate, and the coating layer includes a metal oxide. | 02-20-2014 |
20140079991 | LITHIUM BATTERY - Provided is a lithium battery including: a positive electrode, a negative electrode, and an organic electrolytic solution, wherein the negative electrode has a metal/metalloid nanostructure, and the organic electrolytic solution includes a lithium sulfonimide-based compound. | 03-20-2014 |
20140147741 | COMPOSITE ANODE ACTIVE MATERIAL, ANODE AND LITHIUM BATTERY CONTAINING THE SAME, AND METHOD OF PREPARING THE COMPOSITE ANODE ACTIVE MATERIAL - In an aspect, a composite anode active material including: a porous particles, said porous particles including: a plurality of composite nanostructures; and a first carbonaceous material binding the composite nanostructures, wherein the porous particles have pores within the particle, and wherein the composite nanostructures include a crystalline second carbonaceous material substrate including at least one carbon nano-sheet, and a plurality of metal nanowires arranged at intervals on the crystalline second carbonaceous material substrate is disclosed. | 05-29-2014 |
20140234708 | ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - In an aspect, an electrode for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same are provided. | 08-21-2014 |
20140234710 | NEGATIVE ACTIVE MATERIAL, NEGATIVE ELECTRODE, AND LITHIUM BATTERY - A negative active material includes a conductive unit bound in island-like form to silicon-based nanowires on a carbonaceous base. Such negative active material may improve the electrical conductivity of the silicon-based nanowires, and suppress separation of the silicon-based nanowires caused from volume expansion, and thus may improve lifetime characteristics of a lithium battery. | 08-21-2014 |
20140234714 | NEGATIVE ACTIVE MATERIAL, AND NEGATIVE ELECTRODE AND LITHIUM BATTERY EACH INCLUDING THE NEGATIVE ACTIVE MATERIAL - A negative active material and a lithium battery are provided. The negative active material includes a composite core, and a coating layer formed on at least part of the composite core. The composite core includes a carbonaceous base and a metal/metalloid nanostructure disposed on the carbonaceous base. The coating layer includes a metal oxide coating layer and an amorphous carbonaceous coating layer. | 08-21-2014 |
20150056510 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND NEGATIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed are a negative active material for a rechargeable lithium battery including a silicon-based material including SiO | 02-26-2015 |