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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">锂电池隔膜是什么材料？锂离子电池隔膜的性能和分类介绍 </h1> <p class="xg1"> 时间：2022-12-22 09:39<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(866)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=9673&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a>来自: OFWEEK</p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>锂离子电池隔膜，在锂电池的结构中，隔膜是关键的内层组件之一。对于锂电池系列，由于电解液为有机溶剂体系，因而需要有耐有机溶剂的隔膜材料，一般采用高强度薄膜化的聚烯烃多孔膜。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div> 锂离子电池隔膜，在锂电池的结构中，隔膜是关键的内层组件之一。对于锂电池系列，由于电解液为有机溶剂体系，因而需要有耐有机溶剂的隔膜<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>，一般采用高强度<a href="http://opticalfilm.oecr.com" target="_blank" class="relatedlink">薄膜</a>化的聚烯烃多孔膜。</div><div><br></div><div> 一、锂离子电池隔膜<a href="http://b.oecr.com/sell" target="_blank" class="relatedlink">产品</a>的性能</div><div><br></div><div> 由于锂离子电池隔膜性能的优劣决定着锂离子电池的容量、循环性能、充放电电流密度等关键特性，要求隔膜需具有合适的厚度、离子透过率、孔径和孔隙率及足够的化学稳定性、热稳定性和力学稳定性等性能。</div><div><br></div><div> 锂离子电池隔膜具有大量曲折贯通的微孔，能够保证电解质离子自由通过形成充放电回路;而在电池过度充电或者温度升高时，隔膜通过闭孔功能将电池的正极和负极分开以防止其直接接触而短路，达到阻隔电流传导，防止电池过热甚至爆炸的作用。</div><div><br></div><div> 二、锂离子电池隔膜的分类</div><div><br></div><div> 根据不同的<a href="http://theory.oecr.com" target="_blank" class="relatedlink">物理</a>、化学特性，锂电池隔膜材料可以分为：织造膜、非织造膜（无纺布）、微孔膜、复合膜、隔膜纸、碾压膜等几类。聚烯烃材料具有优异的力学性能、化学稳定性和相对廉价的特点，因此聚乙烯、聚丙烯等聚烯烃微孔膜在锂电池研究开发初期便被用作锂电池隔膜。尽管用其他材料制备锂电池隔膜，如1999年F,Boudin等采用相转化法以聚偏氟乙烯（PVDF）为本体聚合物制备锂电池隔膜；Kuribayash Isao等研究纤维素复合膜作为锂电池隔膜材料。</div><div><br></div><div> 然而，至今商品化锂电池隔膜材料仍主要采用聚乙烯、聚丙烯微孔膜。固体和凝胶电解质开始被用作一个特殊的组件，同时发挥电解液和电池隔膜的作用，是一项新兴的技术手段。</div><div><br></div><div><p 16px;="" 255,="" rgb(255,="" yahei",="" start;"="" normal;="" 14px;="" microsoft="" simsun;="" 255);"="" background-color:="" style="overflow-wrap: normal; margin: 0px; padding: 0px; color: rgb(143, 143, 143); font-family: Tahoma, "Microsoft Yahei", Simsun; background-color: rgb(255, 255, 255);"><font face="微软雅黑" style="overflow-wrap: normal;"><font color="#000000" style="overflow-wrap: 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