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首页> 外文会议>Membrane/Separations Technology Planning Conference; 20031201-20031202; Newton,MA; US >HEAT-ACTIVATABLE SEPARATOR MEMBRANE FOR LITHIUM-ION BATTERIES
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HEAT-ACTIVATABLE SEPARATOR MEMBRANE FOR LITHIUM-ION BATTERIES

机译：用于锂离子电池的可热活化的隔离膜

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A novel heat-activatable microporous separator membrane has been developed by Policell Technologies Inc. and Hitachi Maxell Ltd. The membrane is able to be bound to battery electrodes by heat activation to result in an excellent interface between separator and electrodes. The battery built with the use of such a heat-activatable separator membrane shows long cycle life, high rate capability, and low as well as stable impedance during charge discharge cycling. The microporous separator also shows thermal shutdown behavior. The temperature to trigger the thermal shutdown of a battery could be chemically engineered to meet the requirements for any particular applications. Electric vehicles (EV) are more environmentally friendly since they do not discharge exhaust gases that contribute to air pollution. The vehicles are conventionally powered by a storage battery pack, which supplies the electrical energy for operating the vehicle on the open road, including charging circuitry to enable recharging of the batteries such as by connection to a conventional electrical supply. However, such vehicles are seriously limited in the distance they can travel between battery charges. The lack of batteries having high energy density and long battery life is one of the major factors hindering a more widespread use of electric vehicles. Moreover, rapid growth in the wireless communication market, along with the need for increased mobility and higher power requirement, also require the development of improved battery technologies. Lithium-ion battery has been the preferred power source for various applications because of its high energy density, long cycle life, and the absence of a "memory" effect problem. Since the commercialization of the first liquid lithium-ion battery (LLB) by Sony Corporation in the early 1990's, the worldwide market for LLB has tripled over the last ten years.
机译：Policell Technologies Inc.和Hitachi Maxell Ltd.开发了一种新型的可热活化的微孔隔膜。该隔膜能够通过热活化与电池电极结合，从而在隔膜和电极之间形成出色的界面。使用这种可热活化的隔膜制造的电池在充电放电循环期间显示出长循环寿命，高倍率能力以及低以及稳定的阻抗。微孔隔板也显示出热关机行为。触发电池热关断的温度可以进行化学工程设计，以满足任何特定应用的要求。电动汽车（EV）不排放会造成空气污染的废气，因此对环境更加友好。车辆通常由蓄电池组供电，蓄电池组提供用于在空旷道路上操作车辆的电能，包括用于使蓄电池再充电的充电电路，例如通过连接至常规电源。但是，这种车辆在两次电池充电之间可以行驶的距离受到严重限制。缺乏具有高能量密度和长电池寿命的电池是阻碍电动车辆更广泛使用的主要因素之一。此外，无线通信市场的快速增长，以及对增加的移动性和更高的功率需求的需求，也要求开发改进的电池技术。锂离子电池因其高能量密度，长循环寿命以及不存在“记忆”效应问题而成为各种应用的首选电源。自1990年代初索尼公司（Sony Corporation）首次将液态锂离子电池（LLB）商业化以来，过去十年来，全球LLB市场已增长了两倍。

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