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SK Corp Succeeds in Manufacturing Core Secondary Cell Material Contents
title SK Corp Succeeds in Manufacturing Core Secondary Cell Material
attachment date 2004-12-29 count 17585
LIBS, developed first in Korea and third in the world, to be mass-produced and sold in the market dominated by Japanese companies.

A domestic company is willing to challenge Japanese companies in the secondary cell materials market.

SK Corporation Co., Ltd. (CEO: Heon-cheol Shin, www.skcorp.com) developed separator, a core material of Lithium Ion Battery, with its own technology, first in Korea and third in the world.

Separator, a thin membrane, is a core material of Lithium Ion Battery (LIB). It prevents the anode and cathode of LIB from contacting each other, but makes electrolyte ions pass the membrane through dozens of nano-sized air holes. Around the world, Asahi (Japan) and Tonen (Japan) have the technology, and they have dominated the global separator market.

Since the use of ICT devices including mobile phones and laptops gets more intense, the demand for Lithium Ion Batteries has dramatically increased. In this regard, domestic production of separator and its stable supply carries great significance.

SK Corp applied the cutting-edge nano technology and chemical technologies accumulated for forty years in business and succeeded in developing separator last year first in Korea and third in the world.

In the 90s, several domestic companies tried to develop separator but no companies have succeeded so far. However, SK Corp could grab the success within relatively a short time for good reasons. ▲ Firstly, SK Corp owns polymer manufacturing technology, essential for separator development as the largest energy/chemical enterprise in Korea, and ▲ secondly, bold R&D strategies were in place under which researches at lab and researches for demo plant and mass-production could carried out in parallel and this tactic worked very well.

Presently, SK Corp is producing separator prototype at the Demo Plant located within SKIT (Daeduk, Head: Senior Vice President Sang-hoon Park). The prototype was tested by finished Lithium Ion Battery producers of home and abroad, and they concluded that SK Corp’s separator has performance similar to or above existing Japanese products. More than anything, SK Corp was evaluated to have strengths in the highly durable membrane product.

SK Corp is striving to establish mass-production system using the Demo Plant. Sometime next year, it expects to supply mass-produced products to the market. Since the separator technology developed by SK Corp can be differentiated from that of Japanese companies, patent application has been already submitted at home and abroad.

Recently, local finished secondary battery producers have shown good performance, but they have had to depend on Japanese companies for key materials such as separator. With the in-house development of separator by SK Corp – the next generation growth engine business - it looks highly likely that Korean secondary battery producers could overcome their dependence on Japanese companies

Korea consumes 30% of separators for Lithium Ion Battery manufacturing around the world. In proportion with the evolution of ICT devices and hybrid electric cars, separator demand is expected to hike on a continuous basis.

※ Secondary batteries collectively mean batteries which are not disposable but rechargeable. Lithium Ion Battery and Lithium Ion Polymer Battery are major types of secondary batteries, and almost all mobile phones and notebook PCs are using a rechargeable battery. It is composed of anode material, cathode material, electrolyte and separator.

하단 텍스트 참조

[CEO & President Heon-cheol Shin visits the LIBS production facility (left)]

하단 텍스트 참조

[LIBS production process]

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