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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=61" 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">盘点动力电池焊接的几大工艺难点 </h1> <p class="xg1"> 时间：2016-12-8 11:07<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1854)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=5154&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a>来自: 亚陆行</p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=61" 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>动力电池焊接的几大工艺难点有哪些？今天就为大家介绍一下动力电池封装焊接的一些难点吧。</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> 动力电池焊接的几大<a href="http://optics.oecr.com" target="_blank" class="relatedlink">工艺</a>难点有哪些？一般来讲，动力电池外壳的焊接主要为侧焊和顶焊两种方式，它们各有优势和缺点，而动力电池铝壳因为其<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>的特殊性，容易出现凸起、气孔、诈或等问题，方形电池焊接在拐角处容易出现问题。下面就为大家介绍一下动力电池封装焊接的一些难点吧。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201612/08/110526drpjpculjerbhbbl.jpg" target="_blank"><img src="data/attachment/portal/201612/08/110526drpjpculjerbhbbl.jpg"></a></p></div><div><br></div><div> <b><font color="#f00000"> 1、动力电池焊接的工艺难点</font></b></div><div><br></div><div> 一般动力电池铝壳厚度都要求达到1.0毫米以下，主流厂家目前根据电池容量不同壳体材料厚度以0.6mm和0.8mm两种为主。焊接方式主要分为侧焊和顶焊，其中侧焊的主要好处是对电芯内部的影响较小，飞溅物不会轻易进入壳盖内侧。<span style="line-height: 1.8em;">由于焊接后可能会导致凸起，这对后续工艺的装配会有些微影响，因此侧焊工艺对<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>器的稳定性、材料的洁净度和顶盖与动力电池铝壳的配合间隙有较高的要求。而顶焊工艺由于焊接在一个面上，可采用更高效的振镜扫描焊接方式，但对前道工序入壳及定位要求很高，对设备的自动化要求高。</span></div><div><span style="line-height: 1.8em;"><br></span></div><div> <b><font color="#f00000"> 2、动力电池铝壳的焊接难点</font></b></div><div><br></div><div> 目前动力电池铝壳占整个动力电池的90%以上。铝材的激光焊接难度较大，会面临焊痕表面凸起问题、气孔问题、炸火问题、内部气泡问题等。表面凸起、气孔、内部气泡是激光焊接的致命伤，很多应用由于这些原因不得不停止或者想办法规避。<span style="line-height: 1.8em;">很多电池厂家在研发初期都会为此大伤脑筋，究其原因，主要是采用的光纤芯径过小或者激光能量设置过高所致。引起炸火（也称飞溅，Splash）的因素也很多，如材料的清洁度、材料本身的纯度、材料自身的特性等，而起决定性作用的则是激光器的稳定性。</span><span style="line-height: 1.8em;">在动力电池焊接当中，焊接工艺技术人员会根据客户的电池材料、形状、厚度、拉力要求等选择合适的激光器和焊接工艺参数，包括焊接速度、波形、峰值、焊头倾斜角度等来设置合理的焊接工艺参数，以保证最终的焊接效果满足动力电池厂家的要求。</span></div><div><span style="line-height: 1.8em;"><br></span></div><div> <b><font color="#f00000">3、方形动力电池的焊接难点</font></b></div><div><br></div><div> 方形电池由于来料的配合精度等方面的因素影响，焊接时拐角处最容易出现问题，需要在根据实际情况不断探索，调整焊接速度可以解决这类问题。圆形电池没有这方面的问题，但后续集成成电池模组的难度较大。</div><div><br></div><div> 动力电池焊接的难点就为您分享到这里。只要我们了解了动力电池焊接的这些难点之后，再一一避免，相信一定能够突破焊接难点。各位还有什么想法可以到光电<a href="http://bbs.oecr.com" target="_blank" class="relatedlink">论坛</a>上面去发表。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201612/08/110655hwpt2ukws6ugoz7o.jpg" target="_blank"><img src="data/attachment/portal/201612/08/110655hwpt2ukws6ugoz7o.jpg"></a></p><p style="text-align: center;"><br></p><p style="text-align: center;"><span style="line-height: 25.2px;">欢迎关注光电<a href="http://news.oecr.com" target="_blank" class="relatedlink">资讯</a>微信公众号，每天将由光电工程师<a href="http://club.oecr.com" target="_blank" class="relatedlink">社区</a>网站(oecr.com)编辑团队为您精选行业动态，科技资讯，技术解析，光电<a href="http://www.oecr.com/portal.php?mod=list&catid=62" target="_blank" class="relatedlink">科普</a>等精彩内容，欢迎交换友情链接</span><span 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<dd>支持下哦。</dd> </dl><a name="comment_anchor_9965"></a> <dl id="comment_9965_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(9965, '5154');">引用</a> </span> <a href="http://club.oecr.com/space-uid-160178.html" class="xi2 xw1" c="1">hui95094</a> <span class="xg1 xw0">2016-12-8 15:37</span> </dt> <dd>同学介绍来的，还不错。</dd> </dl><a name="comment_anchor_9961"></a> <dl id="comment_9961_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(9961, '5154');">引用</a> </span> <a href="http://club.oecr.com/space-uid-52219.html" class="xi2 xw1" c="1">jsf1234</a> <span class="xg1 xw0">2016-12-8 14:07</span> </dt> <dd>不错！</dd> </dl><a name="comment_anchor_9960"></a> <dl id="comment_9960_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(9960, '5154');">引用</a> </span> <a href="http://club.oecr.com/space-uid-66246.html" class="xi2 xw1" c="1">goodjobchen</a> <span class="xg1 xw0">2016-12-8 13:37</span> </dt> <dd>都帮顶！大力支持。</dd> </dl><a name="comment_anchor_9955"></a> <dl id="comment_9955_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(9955, '5154');">引用</a> </span> <a href="http://club.oecr.com/space-uid-65449.html" class="xi2 xw1" c="1">esoneny</a> <span class="xg1 xw0">2016-12-8 11:07</span> </dt> <dd>很好的文章，大家继续呀。</dd> </dl></div> </div> <!--[diy=diycontentcomment]--><div id="diycontentcomment" class="area"></div><!--[/diy]--> </div> <div class="sd pph"> <div class="drag"> <!--[diy=diyrighttop]--><div id="diyrighttop" class="area"><div id="frameG07e2m" class="sy_ltdr frame move-span cl frame-1"><div class="frame-title title"><span class="titletext">社区成员推荐</span></div><div id="frameG07e2m_left" class="column frame-1-c"><div id="frameG07e2m_left_temp" class="move-span 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