Sumitomo Chemical to Expand Lithium-Ion Secondary Battery Separator Production Capacity

Leveraging a host of its proprietary technologies cultivated over many years involving polymerization, inorganic materials, and polymer molding, Sumitomo Chemical is vigorously deploying its business of battery separators, which are important components in lithium-ion secondary battery cells. PERVIOTM, which is comprised of a heat-resistant layer composed of aramid fiber and ceramics with a polyolefin substrate, is a separator that will help improve battery safety, and it is widely used in lithium-ion secondary batteries for such products as electric vehicles, notebook PCs, and smartphones.

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