住友化学公司发展锂离子二次电池用隔膜事业,2006年8月已安装制造设备,产品开始供应市场。为应对需求增加了设备,到2008年末年产1 600万m2,到2009年计划年产2 500万m2。旭化成化学公司为应对世界锂离子二次电池的需求扩大,将二次电池用隔膜的设备能力增加到现在的1.5倍。在宇山 Sumitomo Chemical Co., Ltd. develops lithium ion secondary battery separator business. In August 2006, manufacturing equipment was installed and the product started to be supplied to the market. In response, equipment has been added to produce 16 million m2 by the end of 2008 and 25 million m2 by 2009. Asahi Kasei Chemical Corporation in response to the world demand for lithium-ion secondary batteries to expand, the secondary battery separator equipment capacity increased to 1.5 times now. In the mountains