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電(dian)(dian)池(chi)絕熱(re)(re)(re)(re)(re)量熱(re)(re)(re)(re)(re)儀是一種鋰電(dian)(dian)池(chi)熱(re)(re)(re)(re)(re)安(an)全測試儀器。是大(da)尺(chi)寸軟包電(dian)(dian)池(chi)、硬殼電(dian)(dian)池(chi)及其(qi)模組(zu)等(deng)熱(re)(re)(re)(re)(re)失(shi)(shi)控(kong)測試和(he)研(yan)究(jiu)的重要(yao)工(gong)具，其(qi)通過(guo)(guo)模擬電(dian)(dian)池(chi)熱(re)(re)(re)(re)(re)失(shi)(shi)控(kong)過(guo)(guo)程絕熱(re)(re)(re)(re)(re)環(huan)(huan)境，揭(jie)示電(dian)(dian)池(chi)熱(re)(re)(re)(re)(re)失(shi)(shi)控(kong)機(ji)理，定性分析(xi)電(dian)(dian)池(chi)熱(re)(re)(re)(re)(re)擴(kuo)散和(he)火災熱(re)(re)(re)(re)(re)蔓延過(guo)(guo)程，能為電(dian)(dian)池(chi)及電(dian)(dian)池(chi)模組(zu)安(an)全性能評估、熱(re)(re)(re)(re)(re)管理開發、熱(re)(re)(re)(re)(re)失(shi)(shi)控(kong)主動防(fang)控(kong)研(yan)究(jiu)提供可(ke)靠的數據來源。大(da)型電(dian)(dian)池(chi)絕熱(re)(re)(re)(re)(re)量熱(re)(re)(re)(re)(re)儀是研(yan)究(jiu)方形、軟包等(deng)大(da)尺(chi)寸電(dian)(dian)芯以(yi)及小型模組(zu)等(deng)熱(re)(re)(re)(re)(re)失(shi)(shi)控(kong)、熱(re)(re)(re)(re)(re)蔓延機(ji)制(zhi)的重要(yao)工(gong)具，其(qi)通過(guo)(guo)模擬電(dian)(dian)池(chi)熱(re)(re)(re)(re)(re)失(shi)(shi)控(kong)過(guo)(guo)程絕熱(re)(re)(re)(re)(re)環(huan)(huan)境，集成熱(re)(re)(re)(re)(re)濫(lan)用、電(dian)(dian)濫(lan)用、機(ji)械濫(lan)用等(deng)手段，輔以(yi)可(ke)視(shi)/紅外(wai)攝像、氣體收集、充放電(dian)(dian)產熱(re)(re)(re)(re)(re)測...

閃(shan)點(dian)，又稱為閃(shan)火點(dian)，是表征液(ye)態或固態物(wu)質(zhi)(zhi)(zhi)揮發性(xing)和(he)蒸氣易(yi)燃(ran)性(xing)的(de)重要參數。對于純組(zu)分(fen)物(wu)質(zhi)(zhi)(zhi)，容易(yi)通過文獻資料查找(zhao)閃(shan)點(dian)值，進而判定(ding)該物(wu)質(zhi)(zhi)(zhi)的(de)火災危險(xian)性(xing)等(deng)(deng)級。但在工業(ye)領域，閃(shan)點(dian)并不明確的(de)混合溶(rong)液(ye)，特別(bie)是可燃(ran)性(xing)液(ye)體(ti)(ti)與水組(zu)成的(de)二(er)元(yuan)或多元(yuan)互溶(rong)體(ti)(ti)系在涂料、農藥、水處理、制藥、精(jing)細化工、紡(fang)織等(deng)(deng)行(xing)業(ye)內都存(cun)在大規模應(ying)用，作為溶(rong)劑(ji)、分(fen)散劑(ji)或沉(chen)淀(dian)劑(ji)等(deng)(deng)。測定(ding)這類(lei)可燃(ran)性(xing)液(ye)體(ti)(ti)水溶(rong)液(ye)的(de)閃(shan)點(dian)對于生產(chan)作業(ye)場(chang)所燃(ran)爆風險(xian)識(shi)別(bie)、危險(xian)等(deng)(deng)級劃分(fen)以及(ji)管控措施制定(ding)具有重要意義。本文利用微量連續閉口閃(shan)點(dian)儀(yi)研(yan)究(jiu)了無水乙醇(chun)、丙(bing)烯酸和(he)二(er)甲...

本文利用(yong)高溫高壓爆(bao)(bao)炸(zha)極(ji)(ji)限試驗儀(yi)對磷酸鐵鋰電(dian)池(chi)單體(ti)(3.2V/265Ah)熱(re)(re)失(shi)控(kong)(kong)(kong)產氣(qi)(qi)(qi)的(de)(de)爆(bao)(bao)炸(zha)極(ji)(ji)限與極(ji)(ji)限氧(yang)濃(nong)(nong)度進行(xing)了研究，相關爆(bao)(bao)炸(zha)特(te)性(xing)參數可為(wei)儲能(neng)電(dian)站(zhan)等(deng)(deng)應用(yong)場(chang)景的(de)(de)防(fang)爆(bao)(bao)抑爆(bao)(bao)設(she)計(ji)提供理(li)論依據。鋰離(li)子電(dian)池(chi)熱(re)(re)失(shi)控(kong)(kong)(kong)過程會(hui)產生(sheng)由(you)多(duo)種可燃(ran)組分構成的(de)(de)混(hun)合氣(qi)(qi)(qi)體(ti)，這種熱(re)(re)解氣(qi)(qi)(qi)一旦被點燃(ran)會(hui)出(chu)現(xian)不可控(kong)(kong)(kong)的(de)(de)嚴重(zhong)后(hou)果。測定(ding)鋰電(dian)池(chi)熱(re)(re)失(shi)控(kong)(kong)(kong)產氣(qi)(qi)(qi)的(de)(de)爆(bao)(bao)炸(zha)極(ji)(ji)限與極(ji)(ji)限氧(yang)濃(nong)(nong)度，可為(wei)儲能(neng)電(dian)站(zhan)等(deng)(deng)爆(bao)(bao)炸(zha)性(xing)環(huan)境的(de)(de)氧(yang)濃(nong)(nong)度控(kong)(kong)(kong)制(zhi)提供理(li)論依據，有效預防(fang)爆(bao)(bao)炸(zha)和(he)火災(zai)事故;也可為(wei)地下車(che)庫等(deng)(deng)應用(yong)場(chang)景的(de)(de)通(tong)風設(she)計(ji)提供數據支持，提高公共(gong)安(an)全性(xing)。本次實驗選擇應用(yong)...

本(ben)期預覽本(ben)文使(shi)用(yong)TAC-500A絕熱(re)(re)(re)(re)加速量熱(re)(re)(re)(re)儀(yi)(yi)，并通過(guo)一種特殊的(de)(de)(de)裝樣方(fang)式(shi)，研究了(le)在空氣(qi)(qi)中極易吸(xi)濕水解(jie)的(de)(de)(de)氨基鈦類(lei)物質處于氮(dan)氣(qi)(qi)保護下的(de)(de)(de)熱(re)(re)(re)(re)分(fen)(fen)(fen)(fen)解(jie)反(fan)應過(guo)程，并與(yu)空氣(qi)(qi)氣(qi)(qi)氛實驗進行了(le)對比。實驗結(jie)果表明(ming)，上(shang)述方(fang)法(fa)可有(you)效(xiao)規避(bi)制樣及(ji)裝樣過(guo)程中樣品變性的(de)(de)(de)問題，獲(huo)(huo)得(de)更真實的(de)(de)(de)物質熱(re)(re)(re)(re)分(fen)(fen)(fen)(fen)解(jie)數據(ju)。前(qian)言絕熱(re)(re)(re)(re)加速量熱(re)(re)(re)(re)儀(yi)(yi)（ARC）、差式(shi)掃描(miao)量熱(re)(re)(re)(re)儀(yi)(yi)（DSC）和(he)熱(re)(re)(re)(re)重分(fen)(fen)(fen)(fen)析儀(yi)(yi)（TG）等(deng)典型熱(re)(re)(re)(re)分(fen)(fen)(fen)(fen)析儀(yi)(yi)器已被廣泛應用(yong)于研究化學品熱(re)(re)(re)(re)引發自分(fen)(fen)(fen)(fen)解(jie)反(fan)應過(guo)程，獲(huo)(huo)得(de)分(fen)(fen)(fen)(fen)解(jie)熱(re)(re)(re)(re)以及(ji)分(fen)(fen)(fen)(fen)解(jie)動力學數據(ju)。但這些儀(yi)(yi)器都面臨(lin)同樣一個特殊應用(yong)場景的(de)(de)(de)挑戰：對于...

鋰離子電池熱(re)失控(kong)(kong)過程(cheng)會(hui)產生(sheng)由(you)多種(zhong)可(ke)燃(ran)組分構成的(de)(de)混合氣(qi)(qi)體，這種(zhong)熱(re)解氣(qi)(qi)一旦被點燃(ran)會(hui)出現不可(ke)控(kong)(kong)的(de)(de)嚴重(zhong)后果。測定(ding)鋰電池熱(re)失控(kong)(kong)產氣(qi)(qi)的(de)(de)爆(bao)(bao)炸極(ji)限(xian)與極(ji)限(xian)氧濃度，可(ke)為儲(chu)能(neng)(neng)電站等(deng)爆(bao)(bao)炸性環境(jing)的(de)(de)氧濃度控(kong)(kong)制提供理論依據，有效預(yu)防爆(bao)(bao)炸和火災(zai)事故;也(ye)可(ke)為地(di)下(xia)(xia)車庫等(deng)應用(yong)場景的(de)(de)通風設計提供數據支持，提高(gao)公(gong)共(gong)安全性。本次實驗選擇應用(yong)于(yu)儲(chu)能(neng)(neng)站的(de)(de)265Ah磷(lin)酸鐵鋰電芯，通過人工配氣(qi)(qi)模擬其(qi)熱(re)失控(kong)(kong)所產生(sheng)的(de)(de)混合氣(qi)(qi)體，并使(shi)用(yong)高(gao)溫高(gao)壓(ya)爆(bao)(bao)炸極(ji)限(xian)試驗儀(yi)進(jin)行產氣(qi)(qi)爆(bao)(bao)炸特性研究(jiu)。實驗結果表(biao)明，常溫常壓(ya)下(xia)(xia)電池產氣(qi)(qi)的(de)(de)爆(bao)(bao)炸下(xia)(xia)限(xian)(LEL)為6...