博力通（上海）隔膜制品有限公司

Polypore Shanghai Membrane Products Co., Ltd. is a wholly foreign-owned enterprise under the American Polypore International Inc., which is part of the Asahi Kasei Group's electronic business division since 2015. The company mainly engages in the Celgard lithium battery separator and Daramic lead-acid battery separator businesses.

The Celgard Shanghai Waigaoqiao factory was established in 2004, primarily focusing on the processing of Celgard lithium battery separators. The global headquarters of the Celgard brand is located in Charlotte, North Carolina, USA.

Polypore International Inc. is a leading global developer, manufacturer, and marketer of highly specialized polymer-based membranes used in separation and filtration processes. Our products and technologies cater to specialized applications and markets requiring the removal or separation of various materials from liquids, ranging in size from microscopic to those visible to the human eye. We operate our business through two segments: energy storage and separation media. We serve customers globally with strategically located manufacturing facilities in major geographic markets including North America, Europe, and Asia. We have manufacturing facilities or sales offices in nine countries, such as the United States, France, Germany, Italy, Japan, South Korea, etc., covering six continents.