Asahi Kasei Corporation said that it will increase production capacity for Celgard and Hipore li-ion battery (LIB) separator at its plants in North Carolina, US, and Shiga, Japan, respectively.
The separator is a thin microporous film of polyolefin placed between the cathode and anode of lithium-ion batteries. It prevents contact between the electrodes which would cause a short while allowing lithium ions to pass between the electrodes.
With increasing demand for electric-drive vehicles worldwide, the LIB market is forecasted to grow substantially in automotive applications. Asahi Kasei holds a world-leading position as an LIB separator manufacturer, supplying both dry-process and wet-process separators with its Celgard and Hipore products.
Dry-process manufacturing plants are located in the US (North Carolina) while wet-process manufacturing plants are located in Japan (Moriyama, Shiga, and Hyuga, Miyazaki) and Korea (Chungbuk). The expansions announced today are part of a proactive expansion of the LIB separator business, in line with the company’s plans to raise total capacity to 1,100 million m2/year by 2020 as announced in May 2016.
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