Lg Chem, Ltd

Lg Energy Solution, Ltd.

Hosub Lee

Seokhyun Yoon

Seokhee Yoon

Eun Ju Park

Eunju Park

Byunggook Lyu

Taehun Yoon

Jongmin Roh

A preparation method according to the present invention includes use of an amine-based coupling agent to prepare plate-type manganese dioxide nanoparticles. The plate-type manganese dioxide nanoparticles thus prepared can be suitably mixed with a carbon-based conductive material and are thus useful a positive electrode material for pseudo-capacitors.

Method for preparation of plate-type manganese dioxide nanoparticles

The present invention relates to a method for preparing a lithium manganese oxide-based material useful in applications such as for pseudocapacitors and lithium ions batteries. More specifically, by synthesizing manganese oxide nanoparticles and mixing them with lithium salts, and conducting stepwise heat treatment processes under optimized conditions, a lithium manganese oxide-based material with excellent specific capacitance, having a high surface area with a small size, can be prepared.

Method for producing lithium manganese oxide-based cathode active material

Disclosed are a single-source precursor for synthesizing metal chalcogenide nanoparticles for producing a light absorption layer of solar cells comprising a Group VI element linked as a ligand to any one metal selected from the group consisting of copper (Cu), zinc (Zn) and tin (Sn), metal chalcogenide nanoparticles produced by heat-treating at least one type of the single-source precursor, a method of preparing the same, a thin film produced using the same and a method of producing the thin film.

Method of preparing metal chalcogenide nanoparticles and method of producing light absorption layer thin film based thereon

Disclosed are metal chalcogenide nanoparticles forming a light absorption layer of solar cells including a first phase including copper (Cu)-tin (Sn) chalcogenide and a second phase including zinc (Zn) chalcogenide, and a method of preparing the same.

Metal chalcogenide nanoparticles for preparing light absorption layer of solar cells and method of preparing the same

Disclosed are a precursor for preparing a light absorption layer of a solar cell including (a) an aggregate-phase composite including a first phase including a copper (Cu)-tin (Sn) bimetallic metal and a second phase including zinc (Zn)-containing chalcogenide, or including the first phase including a copper (Cu)-tin (Sn) bimetallic metal, the second phase including zinc (Zn)-containing chalcogenide and a third phase including copper (Cu)-containing chalcogenide; or (b) core-shell structured nanoparticles including a core including copper (Cu)-tin (Sn) bimetallic metal nanoparticles and a shell including zinc (Zn)-containing chalcogenide, or the zinc (Zn)-containing chalcogenide and copper (Cu)-containing chalcogenide; or (c) a mixture thereof, and a method of preparing the same.

Precursor for preparing light absorption layer of solar cells and method of preparing the same

Disclosed are an ink composition for manufacturing a light absorption layer of solar cells and a method of manufacturing a thin film using the same. Particularly, an ink composition for manufacturing a light absorption layer of solar cells including core-shell structure nanoparticles including a core including a copper (Cu)-containing chalcogenide and a shell including a zinc (Zn)-containing chalcogenide; and tin (Sn)-containing bimetallic or intermetallic metal nanoparticles, or a tin (Sn)-containing chalcogenide nanoparticles, dispersed in a solvent, and a method of manufacturing a thin film using the same are disclosed.

Ink composition for manufacturing light absorption layer of solar cells and method of manufacturing thin film using the same

Disclosed are a method of preparing metal nanoparticles for solar cells, an ink composition including the metal nanoparticles, and a method of preparing a thin film using the same. More particularly, there are provided a method of preparing metal nanoparticles for forming a light absorption layer of a solar cell, including preparing a first solution including a reducing agent, preparing a second solution including at least two salts selected from the group consisting of a copper (Cu) salt, a zinc (Zn) salt, and a tin (Sn) salt, preparing a mixture by mixing the first solution and the second solution, and synthesizing at least one kind of metal nanoparticles by reaction of the mixture and purifying the synthesized metal nanoparticles, an ink composition including the metal nanoparticles, and a method of preparing a thin film using the same.

Method of preparing metal nanoparticles for solar cell, ink composition including the metal nanoparticles, and method of preparing thin film using the same

Disclosed are three-layer core-shell structure nanoparticles used to form a light absorption layer of solar cells including a core including a copper (Cu)-containing chalcogenide, and (i) a first shell including a tin (Sn)-containing chalcogenide and a second shell including a zinc (Zn)-containing chalcogenide; or (ii) a first shell including a zinc (Zn)-containing chalcogenide and a second shell including a tin (Sn)-containing chalcogenide, and a method of manufacturing the same.

Growing community of inventors

Daejeon, South Korea

Hosub Lee