Other

Samsung Sdi Co., Inc.

Ukseung Chemical Co., Ltd.

Kwang-Sik Kim

Jin-sung Kim

Jong-Seob Kim

Young-Gyu Kim

Jong-Wook Lee

Je-Yun Kim

Sang-Won Lee

Jung-Joon Park

Meen-Seon Paik

Hak-Soo Kim

Young-Bae Roh

Il-Ki Woo

Eung-Pil Kim

Disclosed is an electrolyte for a lithium secondary battery. The electrolyte includes a non-aqueous solvent and a sulfone based organic compound represented by the following Formulae (I), (II), or (III), or a mixture thereof: 

Electrolyte for lithium secondary battery and lithium secondary battery comprising same

A lithium secondary battery exhibiting good mechanical properties and using a thin negative current collector is provided. The lithium secondary battery includes a positive electrode formed by coating lithium metal oxides on a positive current collector and a negative electrode formed by coating carbonaceous materials or SnOon a negative current collector. The negative current collector is made of a Cu-based alloy foil with a thickness of 20 &#x3bc;m or less and the Cu-based alloy foil includes at least one material selected from the group consisting of nickel, titanium, magnesium, tin, zinc, boron, chromium, manganese, silicone, cobalt, iron, vanadium, aluminum, zirconium, niobium, phosphorous, bismuth, lead, silver and misch metal. The lithium secondary battery further includes a separator interposed between the positive and negative electrodes and an electrolyte into which the positive and negative electrodes and the separator are immersed.

Lithium secondary battery

The present invention relates to a combination air purifier and wind generator. The combination air purifier and wind generator includes a wind-receiving unit installed on a central shaft for driving an electric generator mounted in a housing, and an air purifier. The wind-receiving unit includes a governor fixed to an upper end of the central shaft, a spherical blower installed in the middle of the central shaft, and planar magnetic rotary plates installed at a lower end of the central shaft for receiving both artificial and natural winds. Lower magnets are attached to the top of the housing while upper magnets having the same polarity as the lower magnets are attached to the bottoms of the magnetic rotary plates to face the lower magnets. The air purifier includes two air inlets; one air outlet; a copper net, a silver net and a hard charcoal/zeolite net disposed within the air purifier for purifying air introduced thereinto; and a blower interposed between the silver net and the hard charcoal/zeolite net.

Combination air purifier and wind generator

Electrolyte for lithium secondary battery

Growing community of inventors

Cheonan, South Korea

Kwang-Sik Kim