Nexeon Limited

Other

Lg Display Co., Ltd.

Unitex Co., Ltd

Yong Eui Lee

Chul Hwan Kim

Seon Hee Park

Jee Hye Park

Young Tai Cho

Hee Young Seo

Seung Chul Park

Yong Gil Choi

Young Jae Lee

Young Jin Hong

Un Jeong Kim

Myung Gi Lee

Seoung Chul Park

Un Jung Kim

The present invention relates to a method for preparing silicon-based active material particles for a secondary battery and silicon-based active material particles. The method for preparing silicon-based active material particles according to an embodiment of the present invention comprises the steps of: providing silicon powder; dispersing the silicon powder into an oxidant solvent to provide a mixture prior to grinding; fine-graining the silicon powder by applying mechanical compression and shear stress to the silicon powder in the mixture prior to grinding to produce silicon particles; producing a layer of chemical oxidation on the fine-grained silicon particles with the oxidant solvent while applying mechanical compression and shear stress to produce silicon-based active material particles; and drying the resulting product comprising the silicon-based active material particles to yield silicon-based active material particles.

Method for preparing silicon-based active material particles for secondary battery and silicon-based active material particles

The present invention relates to a silicon-based anode active material and a method for manufacturing the same. The silicon-based anode active material according to an embodiment of the present invention comprises: particles comprising silicon and oxygen combined with the silicon, and having a carbon-based conductive film coated on the outermost periphery thereof; and boron doped inside the particles, wherein with respect to the total weight of the particles and the doped boron, the boron is included in the amount of 0.01 weight % to 17 weight %, and the oxygen is included in the amount of 16 weight % to 29 weight %.

Silicon-based anode active material and method for manufacturing same

The present invention relates to a silicon-based anode active material and a method of fabricating the same. The silicon-based anode active material according to an embodiment of the present invention comprises: particles comprising silicon and oxygen combined with the silicon, wherein a carbon-based conductive layer is coated with on outermost surface of the particles; and phosphorus doped in the particles, wherein a content of the phosphorus with respect to a total weight of the particles and the phosphorus doped in the particles have a range of 0.01 wt % to 15 wt %, and a content of the oxygen has a range of 9.5 wt % to 25 wt %.

Silicon-based anode active material and preparation method therefor

Provided is an anode active material for a secondary battery and a method of fabricating the anode active material. A silicon-based active material composite according to an embodiment of the inventive concept includes silicon and silicon oxide obtained by oxidizing at least a part of the silicon, and an amount of oxygen with respect to a total weight of the silicon and the silicon oxide is restricted to 9 wt % to 20 wt %.

Negative electrode active material for secondary battery and method for manufacturing same

The present invention relates to a silicon anode active material capable of high capacity and high output, and a method for fabricating the same. A silicon anode active material according to an embodiment of the present invention includes a silicon core including silicon particles; and a double clamping layer having a silicon carbide layer on the silicon core and a silicon oxide layer between the silicon core and the silicon carbide layer.

Silicon anode active material and preparation method therefor

Provided is a negative active material and a lithium secondary battery including the negative active material. The negative active material for a secondary battery includes silicon particles, wherein circularities of the particles are determined by equation 1 below, and the circularities are 0.5 or greater and 0.9 or less,Circularity=2()&#x2003;&#x2003;[Equation 1]

Negative electrode active material and lithium secondary battery comprising same

The present invention relates to a source container and to a vapor-deposition reactor. The source container according to one embodiment of the present invention comprises: a container comprising an inner wall for delimiting a first space for holing a source material, and a second space which is adjacent to the first space and is for the mixing of vapor emitted from the source material and a carrier gas taken into the inside thereof; a carrier gas inflow pathway which connects the outside of the container second space; a mixed gas discharge pathway which connects the outside of the container and the second space; and a flow-limiting member which expands inside the second space, and provides a first flow barrier surface between the inflow port and the discharge port.

Source container and vapour-deposition reactor

A multi-color electrophoretic display (EPD) device, an image sheet, and a method of fabricating the same. The multi-color EPD device includes: a plurality of unit color pixels; and a plurality of color capsules, each comprising color capsule shell which stores a dielectric fluid and at least one type of electrophoretic particles dispersed in the dielectric fluid, the plurality of color capsules being arranged to define subpixels of each of the plurality of unit color pixels.

Multi-color electrophoretic display device, image sheet, and manufacturing method thereof

A multi-color electrophoretic display (EPD) device, an image sheet, and a method of manufacturing the same. The method of manufacturing the multi-color EPD device includes: forming capsules including photosensitive color-developing capsule shells each of which stores a dielectric fluid and at least one type of electrophoretic particles dispersed in the dielectric fluid; disposing the capsules in a unit color pixel area on a substrate; exposing the capsules to light to form a latent image of a color pattern image on the capsules; and developing the photosensitive color-developing capsule shells of the capsules to form unit color pixels including color capsules.

Growing community of inventors

Gyeonggi-do, South Korea

Yong Eui Lee