Analysis of the cause of the combustion explosion of three - dimensional lithium ion battery

2022/04/08

  Author :Iflowpower – Portable Power Station Supplier

With the continuous development of ternary lithium-ion battery technology, the three-yuan material with higher energy density gradually replaces the lithium iron phosphate material with better stability. Although the ternary material has brought higher energy density for the ternary lithium ion battery, its thermal stability has become a greater challenge, it is important that the high-nickel material begins to break down at 200 ¡ã C. Release O2, which also leads to a lithium-ion battery drum bag, serious or even heat out of control, developed into a combustion explosion.

Studies have shown that thermal out of control is developed into combustion explosions. It is important that the positive electrode material high temperature decomposition occurs O2 and the mixed gas existing after electrolyte gasification, and a large amount of alkane gas in which the negative electrode and the electrolyte occurred, the gas is mixed and then high temperature Self-combustion. In the experiment, the authors used two ways to trigger heat out of control.

The first is to heat, and the battery is heated by adding a hot plate under the lower part of the battery. The second way is to continuously charge the battery with charge and discharge equipment, and trigger battery heat out of control through overtaken. It can be divided into five steps: 1.

Heating, battery drum bag; 2. One end burying; 3. Another burying; 4.

Quiet combustion; 5. By testing data, when the battery is heated to 215.7 ¡ã C, the battery begins with a significant bulging and electrolyte explosion phenomenon, and one end of the battery appears in.

The other end of approximately 7s after the battery has begun to appear, and the battery has started to rupture around, and there is a fire, which has continued to 19S, the highest temperature is 720.1 ¡ã C. Then the battery enters the process of quiet combustion, this process lasted 28s.

During the entire heating process, the battery voltage is substantially unchanged until the battery is bursting, the battery voltage suddenly drops to 0V, which indicates that the battery is unmatched by detecting the voltage abnormal manner to early warning batteries. Although the three-dimensional lithium-ion battery has added many kinds of safety protection measures in use, it is still a cause of accidents that will have a self-ignition explosion in the occasion. Other knowledge information related to three yuan lithium-ion battery: Lithium iron phosphate and three yuan? Which is good for three-dimensional lithium and lithium lithium phosphate life? Which lithium iron phosphate ion battery and a three-yuan lithium ion battery are bett.

CONTACT US
Just tell us your requirements, we can do more than you can imagine.
Send your inquiry
Chat with Us

Send your inquiry

Choose a different language
English
العربية
Deutsch
Español
français
italiano
日本語
한국어
Português
русский
简体中文
繁體中文
Afrikaans
አማርኛ
Azərbaycan
Беларуская
български
বাংলা
Bosanski
Català
Sugbuanon
Corsu
čeština
Cymraeg
dansk
Ελληνικά
Esperanto
Eesti
Euskara
فارسی
Suomi
Frysk
Gaeilgenah
Gàidhlig
Galego
ગુજરાતી
Hausa
Ōlelo Hawaiʻi
हिन्दी
Hmong
Hrvatski
Kreyòl ayisyen
Magyar
հայերեն
bahasa Indonesia
Igbo
Íslenska
עִברִית
Basa Jawa
ქართველი
Қазақ Тілі
ខ្មែរ
ಕನ್ನಡ
Kurdî (Kurmancî)
Кыргызча
Latin
Lëtzebuergesch
ລາວ
lietuvių
latviešu valoda‎
Malagasy
Maori
Македонски
മലയാളം
Монгол
मराठी
Bahasa Melayu
Maltese
ဗမာ
नेपाली
Nederlands
norsk
Chicheŵa
ਪੰਜਾਬੀ
Polski
پښتو
Română
سنڌي
සිංහල
Slovenčina
Slovenščina
Faasamoa
Shona
Af Soomaali
Shqip
Српски
Sesotho
Sundanese
svenska
Kiswahili
தமிழ்
తెలుగు
Точики
ภาษาไทย
Pilipino
Türkçe
Українська
اردو
O'zbek
Tiếng Việt
Xhosa
יידיש
èdè Yorùbá
Zulu
Current language:English