Toxicity, Emissions and Structural Damage from Lithium-Ion Battery Thermal Runaway

Role of Amines in Thermal-Runaway-Mitigating Lithium-Ion Battery.

Benzylamine (BA), dibenzylamine (DBA), and trihexylamine (THA) are investigated as thermal-runaway retardants (TRR) for lithium-ion batteries (LIBs). In a LIB, TRR is packaged separately and released when internal shorting happens, so as to suppress exothermic reactions and slow down temperature increase. THA is identified as the most efficient TRR. Upon nail penetration, 4 wt % THA can reduce ...

Effects of Angular Fillers on Thermal Runaway of Lithium-Ion Battery

Experimental Study of Thermal Runaway Process of 18650 Lithium-Ion Battery

This study addresses the effects of the SOC (State of Charge) and the charging-discharging process on the thermal runaway of 18650 lithium-ion batteries. A series of experiments were conducted on an electric heating and testing apparatus. The experimental results indicate that 6 W is the critical heating power for 40% SOC. With a 20 W constant heating rate, the thermal runaway initial temperatu...

Effects of electrode pattern on thermal runaway of lithium-ion battery

In the current study, through a set of nail penetration and impact tests on modified lithium-ion battery coin half-cells, we examine the effects of electrode pattern on the heat generation behaviors associated with internal shorting. The results show that the temperature profile is quite insensitive to the openings in cathode layer, which may be attributed to the high specific energy as well as...

Heterogeneous current collector in lithium-ion battery for thermal-runaway mitigation

Current collector accounts for more than 90% of the electric conductivity and 90% of the mechanical strength of the electrode in lithium-ion battery (LIB). Usually, current collectors are smooth metallic thin films. In the current study, we show that if the current collector is heterogeneous, the heat generation becomes negligible when the LIB cell is subjected to mechanical abuse. The phenomen...