Asahi Kasei
Japan's Asahi Kasei is a major producer of the wet-process Hipore separator film used in lithium-ion cells, and is expanding that technology for the automotive market in North America, Japan and Korea.
Profile
Asahi Kasei is a major Japanese chemical and materials company and a leading manufacturer of battery separators, the membranes that separate a cell's electrodes. It has deep roots in lithium-ion technology: its researchers were central to the invention of the modern lithium-ion battery.
The company produces lithium-ion separators under the Hipore and Celgard brands and lead-acid separators under the Daramic brand, supplying automotive, consumer-electronics and industrial markets. It is among the world's leading separator suppliers.
Asahi Kasei is expanding separator production capacity in Europe and North America to support local battery manufacturing, and operates across a broad range of materials and chemical businesses. It is publicly listed in Japan.
Written from the public record, including the company’s own published figures, which are attributed as such. Company details change often, so confirm anything material with the company. Suggest a correction