Lg Chem, Ltd

Byung Kyu Lim

Cheol Hee Park

Han Nah Jeong

Sang Yun Jung

Yong Ju Lee

Ki Hwan Kim

Su Jin Kim

Hyun Chul Kim

Dong Sik Kim

Il Ha Lee

Pum Suk Park

Je Young Kim

Soon Jae Kwon

Ik Jin Choi

Jung Won Park

Hyoun Soo Uh

Hyungju Oh

June Ho In

Ii Ha Lee

A method for preparing a metal powder includes preparing a mixture by mixing a fluoride of a group 1 element, a fluoride of a group 2 element or a transition metal fluoride, with neodymium oxide, boron, iron, and a reducing agent; and heating the mixture at a temperature of 800&#xb0; C. to 1100&#xb0; C.

Method for preparing metal powder, and metal powder

A thermoelectric module that has excellent thermal, electric properties, can realize high joining force between thermoelectric elements and an electrode, and can maintain stable joining even at a high temperature.

Thermoelectric module

A thermoelectric module including at least a first and a second thermoelectric element comprising a thermoelectric semiconductor; an electrode connecting the first and second thermoelectric elements; and at least a first and a second joining layer, the first joining layer positioned between the first thermoelectric element and the electrode, and the second joining layer positioned between the second thermoelectric element and the electrode; and at least a first and a second barrier layer including an alloy including Cu, Mo and Ti, the first barrier layer positioned between the first thermoelectric element and the first joining layer, and the second barrier layer positioned between the second thermoelectric element and the second joining layer. The module prevents heat diffusion of the material of the joining layer, preventing the oxidation and deformation of the thermoelectric element under high temperature environment, and exhibiting improved operational stability due to excellent adhesion to a thermoelectric element.

Provided are a silicon oxide-carbon composite and a method of manufacturing the same. More particularly, the present invention provides a method of manufacturing a silicon oxide-carbon composite including mixing silicon and silicon dioxide to be included in a reaction chamber, depressurizing a pressure of the reaction chamber to obtain a high degree of vacuum while increasing a temperature in the reaction chamber to a reaction temperature, reacting the mixture of silicon and silicon dioxide in a reducing atmosphere, and coating a surface of silicon oxide manufactured by the reaction with carbon, and a silicon oxide-carbon composite manufactured thereby.

Silicon oxide-carbon composite and method of manufacturing the same

Provided is a method of manufacturing silicon oxide by which an amount of oxygen of the silicon oxide may be controlled. The method of manufacturing silicon oxide may include mixing silicon and silicon dioxide to be included in a reaction chamber, depressurizing a pressure of the reaction chamber to obtain a high degree of vacuum while increasing a temperature in the reaction chamber to a reaction temperature, and reacting the mixture of silicon and silicon dioxide in a reducing atmosphere.

Method of manufacturing silicon oxide

The present invention relates to a method of preparing silicon oxide, in which the amounts of silicon and oxygen are appropriately controlled by decreasing the amount of the oxygen from silicon oxide containing a relatively large amount of oxygen, silicon oxide prepared by the method, and a secondary battery including the same. According to the method of preparing silicon oxide, silicon oxide (first silicon oxide) including a relatively large amount of oxygen is heat treated in a reducing atmosphere to decrease the amount of the oxygen in the silicon oxide (first silicon oxide) and to prepare silicon oxide (second silicon oxide) including silicon and oxygen in an appropriate amount (Si:SiO=1:0.7-0.98), thereby improving capacity and initial efficiency and securing stability and cycle properties (lifetime characteristics) of the secondary battery.

Silicon oxide and method of preparing the same

Growing community of inventors

Daejeon, South Korea

Byung Kyu Lim