Early warning of battery failure based on venting signal

Modeling and Simulation of a Gas-Exhaust Design for Battery Thermal Runaway Propagation in a LiFePO4 Module

“…The materials reaction include decomposition of the solid electrolyte interphase (SEI) layer, reaction between anode and electrolyte, decomposition of the SEI layer, reaction between anode and electrolyte, separator melting and internal short circuit, reaction between cathode and electrolyte, decomposition of electrolyte and Binder reaction. The thermal runaway heat-generation source item can be simplified by [26]:…”

“…This further illustrates the need for gas safety protection of LFP batteries. Venting gas is a non-negligible role in TR [26][27][28][29]. High concentration of gas venting from battery packs can easily cause combustion, thus burning the entire vehicle body [30].…”

All-temperature area battery application mechanism, performance, and strategies

“…Apart from the temperature, current, and voltage detection of LIBs, 230 gas and smoke detection 231 during the TRP process is also significant, especially within a battery system with a progressively larger size and higher energy density. 232 …”

Comparative study on the thermal runaway characteristics of Li(NixCoyMnz)O2 batteries

“…The ternary battery, specifically the Li(Ni x Co y Mn 1-x-y )O 2 (NCM) ternary battery, is increasingly regarded as a pivotal technology within the realm of electrochemical energy storage. This category of batteries amalgamates the advantages of metals such as nickel, manganese, and cobalt, exhibiting high energy density, prolonged cycle life, and commendable safety performance [ 1 ]. The advantages of lithium-ion batteries are particularly evident in the context of renewable energy utilization and the electrification of transportation [ [2] , [3] , [4] ].…”

“…One crucial factor in all energy storage contexts is the thermal stability of batteries [ 6 ]. This factor includes the challenge of avoiding TR under thermal, electrical, and mechanical harm and the management of energy release during the TR process [ 1 , [7] , [8] , [9] , [10] ]. Electrolyte vapor, which is a combustible mixture, is emitted by batteries during TR; it is both flammable and prone to explosion [ 11 ].…”