Posts Tagged: Polypore

Sumitomo Chemical increases production capacity for battery separators

Sumitomo Chemical is ramping up production capacity for its Pervio lithium-ion secondary battery separators. Production at the company’s Ohe Works in Niihama, Japan will be raised to approximately 1.3 times the current capacity by next spring. The company also plans to build a new plant for Pervio at its subsidiary in South Korea, to start… Read more »

Polypore separates itself and sells two main elements for $3.2 billion

Polypore, the maker of battery separators and microporous membranes, is to be split in two and sold. The company announced that 3M will acquire the assets of Polypore’s Separations Media segment for about $1 billion, and Asahi Kasei will purchase the rest of the company for $60.50 per share. This represents an enterprise value for… Read more »

Celgard to work with Panasonic on next-generation battery cells

Celgard, a subsidiary of Polypore International (NYSE: PPO) and Panasonic have agreed to work together to develop coated and uncoated Celgard brand separators for Panasonic’s next-generation cylindrical battery cells. Upon completion of the development effort, the two firms expect to form a long term supply agreement. A battery separator provides a barrier between the anode… Read more »

Polypore to supply Celgard Li-ion battery separators to Panasonic

Polypore International (NYSE:PPO) has announced that its Celgard subsidiary has entered into a five-year supply agreement with Panasonic under which the Japanese battery behemoth will purchase Celgard brand separators to be used in its large-format lithium-ion batteries. Separators are critical components of a Li-ion battery, providing a barrier between the anode and the cathode while… Read more »

Polypore and Sumitomo sign license agreement for battery separator coating

Polypore International and Sumitomo Chemical have entered into a Settlement and License Agreement which ends outstanding litigation between the two companies. Last February, Charlotte-based Polypore’s Celgard unit filed a patent-infringement suit against Sumitomo over Celgard’s lithium-ion battery separators, which are designed to prevent short circuits and limit safety problems from overheating. Under the new License… Read more »