Global Organization

Does Toray manufacture battery separator film & coating?

The Toray Group will continue to develop, manufacture, and supply battery separator film and coating in Japan and Korea to meet customer needs. Profile of LG Toray Hungary BatterySeparator Kft. (LTHS) Profile of Toray Industries HungaryKft. (THU) Note: The joint venture establishment would be after fulfilling regulatory requirements.

Why do lithium ion batteries need a separator film?

Simultaneously, the separator allows the transport of ionic charge carriers that are needed to close the circuit during the passage of current in an electrochemical cell. To fulfill these functions, separator film in lithium-ion batteries must meet a number of requirements:

Will LTHS produce lithium-ion battery separator films?

LTHS will license from LG Chem and Toray the technologies necessary to produce separators for LG Group lithium-ion batteries. It should generate synergies from the technologies of its parents to produce top-quality automotive lithium-ion battery separator films, for which demand should surge in coming years.

How much space does semcorp Hubei need to produce lithium-ion battery separators?

The plan includes the construction of 16 fully automated lithium-ion battery separator production lines with an annual production capacity of 1.6 billion square meters, as well as the development of four state-of-the-art manufacturing workshops, each exceeding an area of 25,000 square meters. SEMCORP Hubei Production Site Visualization

Why should a battery separator film be thin?

Thin-gauges and uniform thickness: Battery separator film (BSF) must be thin to facilitate the battery's energy and power densities. To support many charging cycles, its thickness must be uniform. Optimum porosity enables the electrolyte to be thoroughly moistened and ensures facile ionic conduction.

Which process is used to make separator film?

On SML’s cast film lines, separator film is manufactured using the dry process. Compared to the wet production method, the dry process has significant advantages: Lower material costs: In the dry process, rather standard PP or HDPE resins are used.

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