Teijin Ltd. announced on July 9 that Teijin CNF Korea Co., a joint venture between Teijin and major Korean film processor CNF, has begun commercial production of Lielsort, a Teijin-developed innovative separator for lithium ion secondary batteries (LIBs).
Of the two types of Lielsort-branded separators, Teijin CNF Korea will initially produce one type coated with a fluorine-based compound that achieves superior adhesion to the polymer electrolyte and is highly resistant to oxidation.
The company also plans to soon begin producing the second type, a highly heat-resistant separator coated with Teijinconex meta-aramid.
As part of market expansion strategies for Lielsort, Teijin has established a wholly owned subsidiary in Seoul named Teijin Electronics Korea Co. to sell both separators. This production and sales network, which has close connections to world-leading South Korean LIB producers, will also provide Teijin with a secure foothold for penetrating the Chinese market.
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