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3-(4-chlorophenyl)-4-phenyl-4,5-dihydro-1H-pyrazole 2-(chloromethyl)-3-methylpyridinehydrochloride 1-(2-bromo-4-methylphenyl)ethanone 3-chloroisoquinoline-4-carbonitrile 5,8-dichloropyrido[3,2-d]pyridazine 2-bromomalononitrile 2-(4-(bromomethyl)phenyl)benzo[d]thiazole 1-(bromomethyl)-3-methoxy-2-nitrobenzene 6-bromo-1H-[1,2,3]triazolo[4,5-b]pyridine 4-iodo-2-((trimethylsilyloxy)methyl)thiazole 6-iodoimidazo[1,2-a]pyridine-3-carbonitrile 2-(4-chlorophenyl)-2-morpholinoacetonitrile 4-chloro-7H-pyrrolo[2,3-d]pyrimidine 4-chloroisothiazole 5-bromo-6-chloro-1H-indole 7-chloro-3H-imidazo[4,5-b]pyridine ethyl3-(4-formylphenyl)propanoate 2,3-dibromobenzaldehyde 1-(5H-chromeno[2,3-b]pyridin-7-yl)ethanone 5H-chromeno[2,3-b]pyridin-5-one 3-chloroisoquinoline-4-carbaldehyde (E)-2-(3-oxoprop-1-enyl)benzaldehyde methyl4-formyl-3-nitrobenzoate 5,6-dimethoxy-2,2-dimethyl-2,3-dihydro-1H-inden-1-one 1-methylbicyclo[4.1.0]heptan-3-one 3-nitro-4-(trifluoromethoxy)benzaldehyde 2-hydroxyquinoline-6-carbaldehyde 2-nitro-3-(trifluoromethyl)benzaldehyde 1-(2-fluoro-4-methoxyphenyl)propan-2-one tert-butyl3-fluoro-4-oxopiperidine-1-carboxylate tert-butyl3-oxopropylcarbamate 2,2-dimethylcyclohexanone 9H-carbazole-3-carbaldehyde N,N-dimethyl-2-oxoacetamide 2-methylpent-4-yn-2-ol 3-tert-butyl-4-hydroxybenzonitrile 4-bromo-2-tert-butylphenol 1,3-dibutoxypropan-2-ol methyl4-hydroxyquinoline-6-carboxylate methyl3-cyano-4-hydroxybenzoate 4-chloro-6-methoxyquinolin-7-ol 3,4-dihydro-2H-benzo[b][1,4]oxazin-7-ol 2-(2-aminothiazol-5-yl)ethanolhydrochloride (R)-ethyl2-chloropropanoate (S)-4-amino-5-(4,4-dimethylcyclohexylamino)-5-oxopentanoicacid (1s,4s)-4-hydroxycyclohexanecarboxylicacid (S)-2-(tetrahydrofuran-3-yloxy)aceticacid (1S,4R)-1-methyl-4-(prop-1-en-2-yl)cyclohex-2-enol (R)-4-(hydroxymethyl)oxazolidin-2-one (S)-4-(hydroxymethyl)oxazolidin-2-one 化工資訊 智能手機(jī)貼身久放或者長(zhǎng)時(shí)間使用之后常常會(huì)出現(xiàn)過(guò)熱現(xiàn)象。
鋰離子電池過(guò)熱的危險(xiǎn)大家已經(jīng)知道，不過(guò)研究人員日前向大家直觀呈現(xiàn)了“燒著的”電池中發(fā)生的現(xiàn)象。
熱成像顯示，在電池中的銅達(dá)到攝氏1,085度(華氏1,985度)時(shí)，會(huì)從電池頂端噴射出熔化材料。
研究人員將鋰離子電池加熱，然后使用熱成像和非侵入性的高速成像技術(shù)觀察電池內(nèi)部結(jié)構(gòu)的變化。電池內(nèi)里的銅熔化，說(shuō)明溫度已達(dá)到至少攝氏1,085度(華氏1,985度)，這時(shí)熔化材料從頂部流出。
這是第一次錄制下鋰離子電池過(guò)熱熔化的視頻。
該視頻由倫敦大學(xué)學(xué)院的保羅?希林(Paul Shearing)拍攝，這一發(fā)現(xiàn)發(fā)表在《自然通訊》雜志上。
鋰離子電池在熱逸潰條件下十分脆弱，所謂熱逸潰，就是在熱量生成速率大于流失速率時(shí)發(fā)生的情況。
盡管電池爆炸很罕見(jiàn)，但防止熱逸潰卻是鋰離子電池安全操作所面臨的最大挑戰(zhàn)之一。
