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鋰電(dian)(dian)池(chi)熱(re)(re)(re)管理(li)系(xi)統(tong)是(shi)提升電(dian)(dian)池(chi)穩定性(xing)(xing)、安(an)全(quan)性(xing)(xing)和(he)有效使用(yong)(yong)生命周期的(de)(de)(de)重要保(bao)障。熱(re)(re)(re)管理(li)設計(ji)與優化離不(bu)(bu)開(kai)熱(re)(re)(re)仿真分析(xi)技(ji)術，而熱(re)(re)(re)仿真的(de)(de)(de)可靠性(xing)(xing)不(bu)(bu)僅依(yi)賴于合(he)理(li)的(de)(de)(de)模(mo)型，更需(xu)要準確的(de)(de)(de)熱(re)(re)(re)物性(xing)(xing)參數(shu)(導(dao)熱(re)(re)(re)系(xi)數(shu)、比熱(re)(re)(re)容、換熱(re)(re)(re)系(xi)數(shu)等)作為(wei)輸入，導(dao)熱(re)(re)(re)系(xi)數(shu)是(shi)其中最重要的(de)(de)(de)參數(shu)之一。由于缺乏有效測試方法與儀(yi)器，電(dian)(dian)池(chi)單體導(dao)熱(re)(re)(re)系(xi)數(shu)測試尚(shang)未形(xing)(xing)成(cheng)通用(yong)(yong)標準。其中，軟包電(dian)(dian)池(chi)測試存在一些可行的(de)(de)(de)方法，如(ru)3D熱(re)(re)(re)物性(xing)(xing)分析(xi)儀(yi)、穩態法等;而對于結(jie)構(gou)更復雜的(de)(de)(de)方形(xing)(xing)電(dian)(dian)池(chi)，在不(bu)(bu)拆解外殼的(de)(de)(de)前(qian)提下仍然沒有有效測試手段，業內(nei)大(da)多使用(yong)(yong)經驗值(zhi)或原理(li)模(mo)型進行估...

利用微(wei)量(liang)連續閉(bi)口(kou)閃(shan)點儀可(ke)(ke)以便捷、高效、準確地(di)監測船(chuan)舶(bo)(bo)航(hang)(hang)行途中發(fa)(fa)(fa)動機(ji)“機(ji)油(you)增多”現象(xiang)，定(ding)量(liang)分析雜質含量(liang)，從而顯(xian)(xian)著降低船(chuan)舶(bo)(bo)發(fa)(fa)(fa)動機(ji)故障(zhang)隱(yin)患和維(wei)護成本，為(wei)船(chuan)運保駕護航(hang)(hang)。大型船(chuan)舶(bo)(bo)需要在海上長時間(jian)連續航(hang)(hang)行，雖然船(chuan)上油(you)品的(de)管理十分嚴格，但是仍然存在潤滑(hua)(hua)油(you)受污染的(de)可(ke)(ke)能(neng)(neng)。一方面(mian)污染可(ke)(ke)能(neng)(neng)來(lai)自于工(gong)作(zuo)人員誤操作(zuo);另一方面(mian)燃(ran)油(you)可(ke)(ke)能(neng)(neng)會通過氣缸壁與(yu)活塞(sai)、活塞(sai)環之間(jian)的(de)縫隙(xi)緩慢滲(shen)透至發(fa)(fa)(fa)動機(ji)曲軸箱。如發(fa)(fa)(fa)生少量(liang)燃(ran)油(you)泄漏難以通過觀察發(fa)(fa)(fa)現，卻會顯(xian)(xian)著降低潤滑(hua)(hua)油(you)的(de)閃(shan)點，可(ke)(ke)能(neng)(neng)導致潤滑(hua)(hua)油(you)在工(gong)作(zuo)溫(wen)度下發(fa)(fa)(fa)生閃(shan)燃(ran)，對發(fa)(fa)(fa)動機(ji)造成損傷...

本文利用鋰(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)檢(jian)測儀(yi)器測量鋰(li)離子電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)充放電(dian)(dian)(dian)(dian)(dian)過(guo)程中(zhong)產(chan)熱(re)(re)行(xing)為，并研(yan)究(jiu)了不同(tong)正極材料、工作(zuo)(zuo)溫(wen)度和(he)充放電(dian)(dian)(dian)(dian)(dian)倍率對電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)產(chan)熱(re)(re)量和(he)產(chan)熱(re)(re)速率的影(ying)(ying)響(xiang)。所獲得數據與(yu)結(jie)論可作(zuo)(zuo)為電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)熱(re)(re)管(guan)理設(she)計(ji)的重(zhong)要參考。鋰(li)離子電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)安全性(xing)(xing)和(he)性(xing)(xing)能保持是目前行(xing)業和(he)用戶最關(guan)(guan)心的兩大(da)主題(ti)。電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)工作(zuo)(zuo)溫(wen)度是影(ying)(ying)響(xiang)鋰(li)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)性(xing)(xing)能與(yu)安全的關(guan)(guan)鍵(jian)因(yin)素，例如，低溫(wen)下內阻增大(da)，電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)容(rong)量下降，特殊條件(jian)下電(dian)(dian)(dian)(dian)(dian)解液甚(shen)至發生凍結(jie)導致無(wu)法放電(dian)(dian)(dian)(dian)(dian);高溫(wen)下同(tong)樣會引(yin)起(qi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)性(xing)(xing)能下降，同(tong)時可能致使電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)發生熱(re)(re)失控，引(yin)起(qi)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)燃燒甚(shen)至爆炸。因(yin)此(ci)，電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)熱(re)(re)管(guan)理系統(tong)(BTMS)是電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)...

作為驅動能(neng)(neng)源革命的(de)(de)(de)(de)重要(yao)力量，鋰(li)(li)離子(zi)電(dian)池(chi)(chi)(chi)因自身的(de)(de)(de)(de)優(you)(you)勢迅速成(cheng)為了電(dian)動汽(qi)車、便(bian)攜(xie)式電(dian)子(zi)設備(bei)等(deng)(deng)的(de)(de)(de)(de)主要(yao)儲能(neng)(neng)介質。然而鋰(li)(li)電(dian)池(chi)(chi)(chi)的(de)(de)(de)(de)進一步(bu)發展仍面臨多重挑戰，除去基本的(de)(de)(de)(de)成(cheng)本等(deng)(deng)經(jing)濟因素外，熱(re)(re)安全性是鋰(li)(li)電(dian)池(chi)(chi)(chi)飽受詰難的(de)(de)(de)(de)問題之一。在動力電(dian)池(chi)(chi)(chi)的(de)(de)(de)(de)系統集(ji)成(cheng)開發過(guo)程中，電(dian)池(chi)(chi)(chi)的(de)(de)(de)(de)熱(re)(re)管理(li)與安全防護是其(qi)設計(ji)核心。優(you)(you)秀的(de)(de)(de)(de)鋰(li)(li)電(dian)池(chi)(chi)(chi)檢測儀器在設計(ji)時，離不開仿真軟件(jian)(jian)的(de)(de)(de)(de)模擬和(he)分析，而進行精確仿真的(de)(de)(de)(de)前提條件(jian)(jian)則是能(neng)(neng)夠輸入(ru)準(zhun)確的(de)(de)(de)(de)電(dian)池(chi)(chi)(chi)熱(re)(re)物性參數，這其(qi)中包括電(dian)池(chi)(chi)(chi)的(de)(de)(de)(de)密度(du)、比(bi)熱(re)(re)容、接觸熱(re)(re)阻和(he)導(dao)熱(re)(re)系數(或熱(re)(re)擴散系數)等(deng)(deng)。其(qi)中導(dao)熱(re)(re)系數是最重要(yao)的(de)(de)(de)(de)熱(re)(re)...

隨著鋰(li)(li)離子電(dian)(dian)(dian)池(chi)(chi)在(zai)新能源汽車、儲能、消費類電(dian)(dian)(dian)子以(yi)及航空(kong)航天(tian)等重(zhong)要(yao)行業的(de)大(da)規(gui)模應用，鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)的(de)安(an)全(quan)問題已(yi)引(yin)(yin)起社會的(de)密切(qie)關注。熱(re)失(shi)控是鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)安(an)全(quan)事故的(de)重(zhong)要(yao)原因，它會引(yin)(yin)起鋰(li)(li)離子電(dian)(dian)(dian)池(chi)(chi)起火甚(shen)至(zhi)爆(bao)炸，直接威脅用戶的(de)安(an)全(quan)。若鋰(li)(li)電(dian)(dian)(dian)池(chi)(chi)單體(ti)在(zai)某種誘因下發(fa)生熱(re)失(shi)控，電(dian)(dian)(dian)池(chi)(chi)材料將發(fa)生一系列劇(ju)烈的(de)化學反應，產生大(da)量(liang)熱(re)量(liang)以(yi)及可燃、有毒的(de)氣體(ti)，導致電(dian)(dian)(dian)池(chi)(chi)因內(nei)部溫度、壓(ya)力(li)急劇(ju)升高而炸裂，可燃氣體(ti)隨之(zhi)泄(xie)露(lu)，在(zai)高溫下遇到外界空(kong)氣引(yin)(yin)起劇(ju)烈燃燒，形成(cheng)射流火或燃爆(bao)火球(qiu)，從而引(yin)(yin)起周圍其他(ta)單體(ti)的(de)失(shi)控，引(yin)(yin)發(fa)安(an)全(quan)事故。電(dian)(dian)(dian)池(chi)(chi)的(de)荷(he)電(dian)(dian)(dian)狀態(tai)...