第二届中国锂电池隔膜研讨会将于2013年5月9-10日在天津召开

2013年1季度，总部位于美国的Porous Power Technologies, LLC (PPT)宣布推出陶瓷填充蓄电池隔膜系列产品，用于显著提升用于电动汽车大尺寸锂离子蓄电池、消费电子产品使用的平板锂离子电池(flat-cell)和众多大功率应用中的锂离子电池的热稳定性和安全性。

在高温条件下，普通隔膜会出现失效故障，但PPT的陶瓷填充聚合物隔膜可熔合在一起，在电极间形成一层陶瓷微粒薄膜，大大降低了可导致热失控和灾难性电池事故的硬短路出现的可能性。

与竞争对手的隔膜中致密陶瓷涂层仅仅是涂布到隔膜表面不同的是，PPT的产品陶瓷颗粒完全均匀分散于隔膜本体化学惰性PVDF聚合物中。这些颗粒主要存留在孔壁中，形成较大的均一开放式孔结构，可使离子在通过微孔时阻力更小，且由于内阻降低而减少过充过放时的放热量。

此前的2012年8月，PPT联合Ahlstrom Corporation宣布在上海成立公司，专为亚洲和中国电池制造商供应具有高孔隙度低电阻特点的SYMMETRIX®电池隔膜产品，以及提供现场支持服务。

由亚化组织的第二届中国锂电池隔膜研讨会将于2013年5月9-10日在天津召开。来自Porous Power Technologies的专家将做关于“全新陶瓷填充锂电隔膜解决方案”的演讲报告。

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U.S. Porous Power Technologies launched Novel Ceramic-filled Battery Separators

In Q1 2013, U.S.-based Porous Power Technologies, LLC (PPT) announced the launch of a line of ceramic-filled battery separators designed to significantly improve the thermal stability and safety of the large-format lithium-ion batteries used in electric vehicles, flat-cell consumer electronics, and many high-power applications.

At high temperatures that can cause other separators to fail, PPT’s ceramic-filled polymer separators fuse together, leaving a thin film of ceramic particles between the electrodes and reducing the likelihood of hard shorts that can lead to thermal runaway and catastrophic cell failure.

Unlike dense ceramic coatings applied as a separate layer on competing separators, PPT’s products contain ceramic particles that are thoroughly distributed throughout their chemically inert PVDF polymer. The particles reside primarily in the pore walls, leaving a large and uniform open pore structure that enables ions to pass through with less resistance and less heat generation.

Previous in Aug. 2012, PPT in partnership with Ahlstrom Corporation, announced the opening of a new office in Shanghai, China. This office will enable PPT to provide improved on-site support to Asian battery manufacturers who are integrating SYMMETRIX® battery separators with high porosity and low resistance into their battery programs.

The 2nd China LIB Separator Conference 2013 organized by ASIACHEM will be held on May 9-10 in Tianjin, China. The expert from Porous Power Technologies will deliver a presentation on Novel Ceramic-filled Battery Separators.