TY  - JOUR
PY  - 2024//
TI  - Experimental investigation of thermal runaway in 40Ah prismatic lithium batteries at different SOC
JO  - Anais da Academia Brasileira de Ciências
A1  - Wei, Ningning
A1  - Li, Minghai
SP  - e20230648
EP  - e20230648
VL  - 96
IS  - Suppl 1
N2  - 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>
LA  - en
SN  - 0001-3765
UR  - http://dx.doi.org/10.1590/0001-3765202420230648
ID  - ref1
ER  -