Lg Chem, Ltd

Neopharm Co., Ltd.

Su-Hwan Kim

Dong-Kwon Lee

Sang-Kook Kim

Won-Bae Lim

Da-Jeong Kim

Yoon Ho Kim

Jong-Hyun Chae

Du-Sun Hwang

Jang-Bae Kim

Ji-Hye Yang

Jung-Sik Bang

Byeong-Deog Park

Shin-Hee Lee

A secondary battery using a vanadium oxide as a positive electrode active material is provided. The secondary battery is prevented from degradation of capacity by preventing dissolution of vanadium. The vanadium oxide includes secondary particles formed by assemblage of primary particles.

Lithium ion secondary battery

The composition of external application to the skin according to the present invention may specifically control the relative amount between long-chain amides and sterols and the relative amount between lipid components and an emulsifier in the emulsion having a multi-layered lamella structure, the emulsion comprising a relatively larger content of dermatologically useful hydrophobic material in a formulation. Thus, the formulation having significantly high stability and excellent characteristics can be obtained in spite of the high content in the lipid components and the emulsifier.

Composition of external application to skin

The present invention provides the composition of an alkali-free glass composition containing no alkali metal oxide and the preparation thereof. The alkali-free glass comprising substantially no alkali metal oxide according to the present invention comprises 61 to 73 wt % of SiO; 0.5 to 3.9 wt % of BO; 3.5 to 13.5 wt % of AlO; 9 to 13 wt % of MgO; 1 to 8 wt % of CaO; and 4 to 10 wt % of SrO, based on the total weight of oxides present therein.

Alkali-free glass and preparation thereof

The present invention provides the composition of an alkali-free glass composition containing no alkali metal oxide and the preparation thereof. The alkali-free glass comprising substantially no alkali metal oxide according to the present invention comprises 46 to 57 wt % of SiO; 3.5 to 7.5 wt % of BO; 21 to 29 wt % of AlO; 3 to 14 wt % of MgO; 11 to 16 wt % of CaO; and 1 to 5 wt % of SrO, based on the total weight of oxides present therein.

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Daejeon, South Korea

Su-Hwan Kim