{"id":2691,"date":"2026-05-08T16:57:55","date_gmt":"2026-05-08T08:57:55","guid":{"rendered":"https:\/\/www.bosaenergy.cn\/?p=2691"},"modified":"2026-05-08T16:57:58","modified_gmt":"2026-05-08T08:57:58","slug":"analyse-van-de-oorzaken-van-het-uitzetten-en-exploderen-van-de-batterijbehuizing","status":"publish","type":"post","link":"https:\/\/www.bosaenergy.cn\/nl\/analysis-of-the-causes-of-battery-casing-bulging-and-explosion\/","title":{"rendered":"Analyse van de oorzaken van het uitzetten en exploderen van de batterijbehuizing"},"content":{"rendered":"<h3 class=\"wp-block-heading\" id=\"ember194\">Wat is een bolle batterijbehuizing?<\/h3>\n\n\n\n<p id=\"ember195\">Definitie van het fenomeen<\/p>\n\n\n\n<p id=\"ember196\">Tijdens gebruik of opslag veroorzaakt gasvorming in een accu een verhoogde druk, wat leidt tot uitzetting en vervorming van de behuizing.<\/p>\n\n\n\n<p id=\"ember197\">Intern mechanisme<\/p>\n\n\n\n<p id=\"ember198\">Dit is een macroscopische manifestatie van een abnormale chemische reactie die zich in de batterij afspeelt en is een van de belangrijke indicatoren voor batterijfalen.<\/p>\n\n\n\n<p id=\"ember199\">Potenti\u00eble risico&#039;s<\/p>\n\n\n\n<p id=\"ember200\">Indien dit niet tijdig wordt aangepakt, kan het leiden tot ernstige veiligheidsincidenten zoals lekkage, brand of zelfs explosie.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ember201\">Oorzaak van het uitpuilen van de huls 1: Interne gasvorming<\/h3>\n\n\n\n<p id=\"ember202\">\u2460Elektrolytontleding<\/p>\n\n\n\n<p id=\"ember203\">Onder omstandigheden zoals overladen en hoge temperaturen ondergaat de elektrolyt een ontledingsreactie, waarbij gassen zoals CO2 en CH4 ontstaan. CH4 is een van de belangrijkste gasbronnen.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/media.licdn.com\/dms\/image\/v2\/D5612AQFpqb2UNQ3wpQ\/article-inline_image-shrink_1000_1488\/B56Z4Gj5N1GsAI-\/0\/1778226533506?e=1779926400&amp;v=beta&amp;t=5peq8M6Y4cGiTmoebj8ISepYErZpy4Yvbg5a3zDJipU\" alt=\"\u6587\u7ae0\u5185\u5bb9\" style=\"width:331px;height:auto\"\/><\/figure>\n\n\n\n<p id=\"ember205\">\u2461 Scheuren en reparatie van de SEI-folie<\/p>\n\n\n\n<p id=\"ember206\">De SEI-film op het oppervlak van de negatieve elektrode scheurt en herstelt zich herhaaldelijk tijdens het cycleren. Dit proces verbruikt continu elektrolyt en genereert gas.<\/p>\n\n\n\n<p id=\"ember207\">\u2462Reactie van vocht en onzuiverheden<\/p>\n\n\n\n<p id=\"ember208\">Vocht of metaalverontreinigingen die tijdens het productieproces worden ge\u00efntroduceerd, kunnen chemisch reageren met het elektrolyt en daarbij gassen zoals waterstof produceren.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ember209\">Oorzaak van bolling van de huls 2: Onjuist gebruik<\/h3>\n\n\n\n<p id=\"ember210\">\u2460 Overladen en te ver ontladen<\/p>\n\n\n\n<p id=\"ember211\">Langdurig opladen met als gevolg overladen, of het blijven gebruiken van de batterij nadat deze volledig leeg is met als gevolg overontlading, zal interne nevenreacties verergeren en de gasproductie versnellen.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/media.licdn.com\/dms\/image\/v2\/D5612AQGsQufDj5GeFg\/article-inline_image-shrink_400_744\/B56Z4GnLx9HwAM-\/0\/1778227395966?e=1779926400&amp;v=beta&amp;t=qJUvCcW3qWJHPeYUhff8KW_LsKg-nvJMUan8W6tIXtc\" alt=\"\u6587\u7ae0\u5185\u5bb9\" style=\"width:307px;height:auto\"\/><\/figure>\n\n\n\n<p id=\"ember213\">\u2461Gebruik van inferieure opladers<\/p>\n\n\n\n<p id=\"ember214\">Niet-originele of inferieure opladers kunnen de spanning en stroomsterkte niet nauwkeurig regelen, wat gemakkelijk kan leiden tot overladen van de batterij en een verkorting van de levensduur ervan.<\/p>\n\n\n\n<p id=\"ember215\">\u2462Omgevingen met hoge temperaturen<\/p>\n\n\n\n<p id=\"ember216\">Het opladen of gebruiken van de batterij in omgevingen met hoge temperaturen versnelt de ontbinding van het elektrolyt en de beschadiging van de SEI-film, waardoor de gasproductie aanzienlijk toeneemt.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ember217\">Oorzaken van opgezwollen batterijen 3: fabricagefouten en veroudering<\/h3>\n\n\n\n<p id=\"ember218\">\u2460 Productieprocesdefecten<\/p>\n\n\n\n<p id=\"ember219\">Productiefouten, zoals bramen op elektroden, rimpels in de separator en onvoldoende afdichting, kunnen leiden tot interne microkortsluitingen of het binnendringen van vocht, wat inherente risico&#039;s met zich meebrengt voor het opzwellen van de batterij.<\/p>\n\n\n\n<p id=\"ember220\">\u2461 Batterijveroudering en effecten van hoge temperaturen<\/p>\n\n\n\n<p id=\"ember221\">Naarmate de gebruiksduur toeneemt, raken de actieve materialen in de batterij uitgeput, neemt de interne weerstand toe, wordt de SEI-laag dikker en nemen de interne nevenreacties toe. Omgevingen met hoge temperaturen (zoals blootstelling aan direct zonlicht) versnellen dit proces, wat uiteindelijk leidt tot een verhoogde gasproductie en bolling van de batterij.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/media.licdn.com\/dms\/image\/v2\/D5612AQGLsFuI6O4-Rw\/article-inline_image-shrink_1000_1488\/B56Z4GnnpfIkAI-\/0\/1778227510076?e=1779926400&amp;v=beta&amp;t=JkI3FwCdiDahR2DmUTqcY7GvXRs2ZSTYF3UG6PYb0UA\" alt=\"\u6587\u7ae0\u5185\u5bb9\" style=\"width:334px;height:auto\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ember223\">De essentie van de explosie: thermische runaway<\/h3>\n\n\n\n<p id=\"ember224\">\u246090-120\u00b0C: SEI-filmontleding<\/p>\n\n\n\n<p id=\"ember225\">Bij de ontbinding van de SEI-film komen aanvankelijk warmte en gas vrij, wat de reactie op gang brengt.<\/p>\n\n\n\n<p id=\"ember226\">\u2461130-180\u00b0C: Smelten van de separator en kortsluiting<\/p>\n\n\n\n<p id=\"ember227\">Het smelten van de separator veroorzaakt direct contact tussen de positieve en negatieve elektroden, wat een interne kortsluiting en een snelle temperatuurstijging teweegbrengt.<\/p>\n\n\n\n<p id=\"ember228\">\u2462150-250\u00b0C: Ontleding van de positieve elektrode en zuurstofproductie<\/p>\n\n\n\n<p id=\"ember229\">Het materiaal van de positieve elektrode ontleedt, waarbij zuurstof vrijkomt die heftig reageert met de elektrolyt, waardoor de temperatuur sneller stijgt.<\/p>\n\n\n\n<p id=\"ember230\">\u2463Eindresultaat: Verbranding en explosie<\/p>\n\n\n\n<p id=\"ember231\">Het elektrolyt verbrandt, waardoor de batterij in brand vliegt of zelfs explodeert, met ernstige gevolgen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ember232\">Drie voorwaarden die thermische runaway kunnen veroorzaken<\/h3>\n\n\n\n<p id=\"ember233\"><strong>\u2460 Mechanisch misbruik<\/strong><\/p>\n\n\n\n<p id=\"ember234\">De batterij wordt blootgesteld aan externe invloeden zoals botsingen, compressie of perforaties, wat kan leiden tot interne structurele schade en kortsluiting.<\/p>\n\n\n\n<p id=\"ember235\"><strong>\u2461 Elektrisch misbruik<\/strong><\/p>\n\n\n\n<p id=\"ember236\">De batterij ondervindt elektrische afwijkingen zoals overladen, overontladen of kortsluiting, waardoor interne reacties uit de hand lopen.<\/p>\n\n\n\n<p id=\"ember237\"><strong>\u2462 Thermische overbelasting<\/strong><\/p>\n\n\n\n<p id=\"ember238\">De batterij wordt blootgesteld aan hoge temperaturen, of het koelsysteem faalt, waardoor warmte zich ophoopt en thermische oververhitting optreedt.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ember239\">Voortplanting van thermische runaway: domino-effect<\/h3>\n\n\n\n<p id=\"ember240\">In een accupakket kan thermische oververhitting van \u00e9\u00e9n enkele cel zich snel verspreiden naar andere cellen, waardoor een domino-effect ontstaat. Deze verspreiding vindt hoofdzakelijk plaats via drie mechanismen:<\/p>\n\n\n\n<p id=\"ember241\"><strong>\u2460 Warmtegeleiding:<\/strong> De hogetemperatuurcel draagt de warmte rechtstreeks over aan aangrenzende cellen via metalen componenten.<\/p>\n\n\n\n<p id=\"ember242\"><strong>\u2461 Warmtestraling:<\/strong> De cel met hoge temperatuur verwarmt de omgeving en andere cellen door middel van infraroodstraling.<\/p>\n\n\n\n<p id=\"ember243\"><strong>\u2462Warmteconvectie:<\/strong> De stroom hete gassen in het accupakket verspreidt de warmte naar andere delen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ember244\">Preventieve maatregel 1: Optimalisatie van materiaal en ontwerp<\/h3>\n\n\n\n<p id=\"ember245\">\u2460Selecteren van zeer stabiele materialen<\/p>\n\n\n\n<p id=\"ember246\">Materialen met een hogere thermische stabiliteit hebben de voorkeur, zoals LFP-batterijen, waarvan de temperatuur waarbij thermische doorslag optreedt over het algemeen hoger ligt dan die van NMC-batterijen, waardoor het risico op brand bij de bron wordt verminderd.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/media.licdn.com\/dms\/image\/v2\/D5612AQFmiuruZ6KO7A\/article-inline_image-shrink_1000_1488\/B56Z4Gn8rbHMAI-\/0\/1778227599999?e=1779926400&amp;v=beta&amp;t=lTDe5GUjh8k6QLIYR4LCuua95rIKS-XvYHuCCPGYVB4\" alt=\"\u6587\u7ae0\u5185\u5bb9\" style=\"aspect-ratio:1.7799409003997915;width:466px;height:auto\"\/><\/figure>\n\n\n\n<p id=\"ember248\">\u2461 Optimaliseer het ontwerp van de batterijstructuur<\/p>\n\n\n\n<p id=\"ember249\">Gebruik innovatieve structuren en technologie\u00ebn om de schokbestendigheid te verbeteren, de ruimtelijke indeling te optimaliseren en de algehele stabiliteit van het accupakket te vergroten.<\/p>\n\n\n\n<p id=\"ember250\">\u2462Er zijn meerdere veiligheidsvoorzieningen toegevoegd.<\/p>\n\n\n\n<p id=\"ember251\">Een ingebouwd explosieveilig ventiel maakt gerichte drukontlasting mogelijk wanneer de druk te hoog wordt; een zekering is ontworpen om het circuit automatisch af te sluiten in geval van kortsluiting om warmteverspreiding te voorkomen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ember252\">Preventieve maatregel 2: Intelligente monitoring en thermisch beheer<\/h3>\n\n\n\n<p id=\"ember253\">\u2460BMS<\/p>\n\n\n\n<p id=\"ember254\">Als het &quot;brein&quot; van de batterij is het batterijbeheersysteem (BMS) verantwoordelijk voor het realtime bewaken van de spanning, stroom en temperatuur van elke cel, het uitvoeren van actieve balancering, het voorspellen van storingsrisico&#039;s en het initi\u00ebren van beschermingsmaatregelen (zoals het uitschakelen van de stroom) in geval van afwijkingen.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/media.licdn.com\/dms\/image\/v2\/D5612AQF9k1PxkPUyGw\/article-inline_image-shrink_1000_1488\/B56Z4GoTuHKoAI-\/0\/1778227693212?e=1779926400&amp;v=beta&amp;t=AzS2vrYeKXudc3OU6r0Yd4oBr-Yrv6kgRyDmLrd4qno\" alt=\"\u6587\u7ae0\u5185\u5bb9\" style=\"aspect-ratio:1.5137628241137688;width:489px;height:auto\"\/><\/figure>\n\n\n\n<p id=\"ember256\">\u2461Hoogeffici\u00ebnt thermisch beheersysteem<\/p>\n\n\n\n<p id=\"ember257\">Maakt gebruik van vloeistofkoeling, luchtkoeling en andere methoden om de bedrijfstemperatuur van de batterij binnen het optimale bereik te houden (doorgaans 25-40\u2103), waardoor plaatselijke oververhitting wordt voorkomen en het ontstaan en de verspreiding van thermische runaway wordt onderdrukt.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ember258\">Preventieve maatregel 3: Gebruik volgens de voorschriften<\/h3>\n\n\n\n<p id=\"ember259\">Gebruik originele of gecertificeerde opladers en voorkom overladen of te ver ontladen.<\/p>\n\n\n\n<p id=\"ember260\">Vermijd hoge temperaturen, hoge luchtvochtigheid en direct zonlicht.<\/p>\n\n\n\n<p id=\"ember261\">Demonteer, knijp of prik niet in de batterij.<\/p>\n\n\n\n<p id=\"ember262\">Stop onmiddellijk met het gebruik als u afwijkingen opmerkt, zoals een bolling of oververhitting.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>What is battery casing bulging? Definition of Phenomenon During use or storage, gas buildup inside a battery causes increased pressure, leading to expansion and deformation of the casing. Internal Mechanism This is a macroscopic manifestation of an abnormal chemical reaction occurring inside the battery and is one of the important indicators of battery failure. Potential [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2692,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2691","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Analysis of the causes of battery casing bulging and explosion - BOSA lithium battery<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.bosaenergy.cn\/nl\/analyse-van-de-oorzaken-van-het-uitzetten-en-exploderen-van-de-batterijbehuizing\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Analysis of the causes of battery casing bulging and explosion - BOSA lithium battery\" \/>\n<meta property=\"og:description\" content=\"What is battery casing bulging? Definition of Phenomenon During use or storage, gas buildup inside a battery causes increased pressure, leading to expansion and deformation of the casing. Internal Mechanism This is a macroscopic manifestation of an abnormal chemical reaction occurring inside the battery and is one of the important indicators of battery failure. 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