Lg Electronics Inc.

Eunseck Kang

Kyungho Jung

Deokhai Park

Jongwon Lee

Koun Park

Namseok Kang

Misun Lee

Jinsan Moon

Dongwook Lee

Juchul Lee

Hongcheol Lee

Eunja Lim

The present disclosure is applicable to the technical field related to a secondary battery, and relates to, for example, a separator structure for the secondary battery, a method for preparing the same, and the secondary battery using the same. A separator structure disposed inside a secondary battery includes a porous support body including a first face and a second face, and a cellulose nano fiber subjected to an ionic surface treatment located on at least one of the first face and the second face of the support body.

Separator structure for secondary battery, method for making the separator, and the secondary battery using the same

A method according to the present disclosure may includes preparing a urea solution by dissolving urea in distilled water, adding phosphoric acid to the urea solution, adding pulp to the solution in which urea and phosphoric acid are dissolved, heating the solution such that the urea and the phosphoric acid each react with the pulp and preparing nanocellulose by washing the pulp which is completely reacted, and then grinding the pulp, in which a weight of the phosphoric acid is 10 to 50% based on a weight of the pulp.

Method for preparing nanocellulose

A method for manufacturing a transparent composite material including preparing a film coated with a transparent resin, unidirectionally aligning glass fiber filaments and manufacturing a glass fiber plate by embedding the unidirectionally aligned glass fiber filaments in the transparent resin, wherein the transparent resin includes Si&#x2014;O&#x2014;Si bond and one of methyl, ethyl and phenyl.

Method for manufacturing transparent composite material

The present invention relates to graphene, and particularly, to a method for preparing graphene, to said graphene, and to an electronic device using said graphene. The present invention, as described above, can be constructed by the inclusion of the steps of: forming a graphene layer on a catalytic metal layer; forming an organic-inorganic hybrid film in an uncured state on the graphene layer; and curing the film.

Method for preparing graphene and said graphene, electronic device using said graphene

A colorless composite material according to an embodiment includes glass fibers, and inorganic-organic hybrid resin having inorganic bonds and organic bonds, wherein the inorganic bonds are M-O-M bonds and M denotes a metallic element, wherein the metallic element is one of Ti, Zr and Al.

Transparent composite material and a production method therefor

This specification relates to a colorless composite material capable of retaining transparency within a wide temperature range by impregnating glass composition (glass fibers) with inorganic-organic hybrid resin. A colorless composite material according to exemplary embodiments includes glass fibers, and inorganic-organic hybrid resin consisting of inorganic bonds and organic bonds, wherein the inorganic bonds are Si&#x2014;O&#x2014;Si bonds or Si&#x2014;O-M bonds and M denotes a metallic element.

The present disclosure relates to a transparent composite material capable of exhibiting relatively high light transmittance, reduced haze, fabrication in the form of a thin film, and improved mechanical strengths (impact strength, flexural strength, etc.), by way of unidirectionally aligning glass fiber filaments without intersecting or overlapping with each other, and embedding the aligned glass fiber filaments into a transparent resin formed on a film, and a manufacturing method thereof. The transparent composite material is composed of glass fiber plates including a transparent resin, and a plurality of glass fiber filaments embedded in the transparent resin in a unidirectionally aligned state.

Growing community of inventors

Seoul, South Korea

Eunseck Kang