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Asahi Kasei to Expand Coating Capacity for Lithium-ion Battery Separators in EVs

Published on 2023-11-02. Edited By : SpecialChem

TAGS:  Automotive Coatings    

Asahi Kasei Coating Capacity Lithiumion Battery Separators Asahi Kasei will invest approximately ¥40 billion in additional equipment for coating Hipore™ lithium-ion battery (LIB) separators. New coating lines will be installed at existing Asahi Kasei LIB separator facilities in the United States, Japan and South Korea, with start-up scheduled in succession from the first half of fiscal year 2026.

Asahi Kasei supplies two types of Hipore™ wet-process LIB separators - a polyolefin microporous base film membrane and a coated membrane separator produced by applying ceramic and other coatings to the base film.

Meeting Increasing Demand for EV Applications


As one of Asahi Kasei's ‘10 Growth Gears’ (GG10) businesses identified to lead the next phase of growth in the company's medium-term management plan for fiscal year 2024 with a theme ’Be a Trailblazer’, the separator business is a focus of proactive investment for capacity expansion to meet the significant increase in demand for electric vehicle applications.

Expanding Hipore™ operations globally to keep pace with the electric vehicle market is an important milestone for our separator business,” said Hiroyoshi Matsuyama, senior executive officer and president of the Environmental Solutions Strategic Business Unit.

We are happy to support the growth of our customers abroad and with the help of our established global locations, we can do that quickly by investing in existing infrastructure and then expanding further with new greenfield sites as needed to meet regional demand,” added Matsuyama.

Asahi Kasei will continue investing to build its LIB separator supply infrastructure for automotive applications to meet growing demand, especially in North America where significant expansion of electric vehicle production is forecasted. The expansion will raise Asahi Kasei's coating capacity for LIB separators to approximately 1.2 billion m2/year, enabling the supply of coated separators for batteries equivalent to 1.7 million electric vehicles.

This will contribute to building robust LIB supply chains in North America, Japan and South Korea with highly functional and durable wet-process separators for automotive applications. Asahi Kasei will continue to study proactive investments, including the establishment of new Hipore™ membrane manufacturing facilities to further enhance its supply infrastructure for the North American and Japanese markets.

Source: Asahi Kasei

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