@article{ref1,
title="Experimental investigation of thermal runaway in 40Ah prismatic lithium batteries at different SOC",
journal="Anais da Academia Brasileira de Ciências",
year="2024",
author="Wei, Ningning and Li, Minghai",
volume="96",
number="Suppl 1",
pages="e20230648-e20230648",
abstract="With the evolution of energy storage, Thermal Runaway (TR) stands out as the most critical safety concern for Lithium-Ion Batteries (LIBs). This study employs a prismatic lithium battery with a nominal capacity of 40Ah, featuring Li(Ni0.6Co0.2Mn0.2)O2 as the cathode material. The investigation delves into the thermal runaway characteristics of the battery at 25%, 50%, 75%, and 100% State of Charge (SOC) in a nitrogen environment. The findings indicate: 1) an ascending trend in the highest temperatures at various points within the battery as SOC increases, accompanied by a declining trend in normalized gas production and a non-linear relationship between the heat released during TR and the stored electrochemical energy; 2) the highest temperature point within the battery consistently resides at the surface, offering insights for the temperature monitoring of the Battery Thermal Management System (BTMS); 3) a direct correlation between higher SOC and increased material ejection, with a mass loss rate of 25.8% at 100% SOC, a static total gas production of 2.45 mol, and a maximum explosion index of 0.2886 kPa⋅m⋅s⁻¹.<p /> <p>Language: en</p>",
language="en",
issn="0001-3765",
doi="10.1590/0001-3765202420230648",
url="http://dx.doi.org/10.1590/0001-3765202420230648"
}