Effect of electrode crosstalk on heat release in lithium-ion batteries under thermal abuse scenarios

Zhou, Hanwei; Parmananda, Mukul; Crompton, K. R.; Hladky, Michael; Dann, Martin A.; Ostanek, Jason K.; Mukherjee, Partha P.

doi:10.1016/j.ensm.2021.10.030

Cited by 56 publications

(39 citation statements)

References 77 publications

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“…The Kissinger method, a tool for kinetic analysis, has been widely used to extract these two values from DSC spectra with varying scan rates. The relationship between the two values and experimental data is as follows in which β i represents temperature scanning rate, T p, i are the reaction peak temperatures, A is the frequency factor, R is the universal gas constant, and E a stands for activation energy.…”

Section: Resultsmentioning

confidence: 99%

“…The relationship between the two values and experimental data is as follows. 35 i k j j j j j j y { z z z z z z i k j j j j j y { z z z z z DSC spectra of Li 6 PS 5 Cl + Li 1−x CoO 2 (x = 0, 0.3, 0.5) mixed powders with different delithiation states were compared (Figure 6a). Two exothermic peaks were found in the much higher accuracy/sensitivity of DSC than the temperature control of muffle furnace and XRD tests.…”

Section: Flammability Of Sulfide Se and Its Battery Materialsmentioning

confidence: 99%

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Thermal Stability between Sulfide Solid Electrolytes and Oxide Cathode

Wang

et al. 2022

ACS Nano

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In pursuit of high-energy/power density, lithium-ion batteries suffer from increasing safety risks that need to be urgently solved. These safety problems promisingly might be solved by replacing liquid electrolytes (LEs) with inorganic solid electrolytes (SEs), because of their high thermal stability and nonflammability. However, thermal stability studies on sulfide SEs have been rarely reported, due to their extremely high reactivity, strong corrosiveness, instability to air, toxic gas release, etc. To fill this gap, thermal stability performances of sulfide SEs are verified from the perspectives of essential combustion elements in this work. Simple and effective experimental devices/approaches have been developed to systematically study the thermodynamic and kinetic properties of thermal stability between typical sulfide SEs (Li3PS4, Li7P3S11, Li6PS5Cl, LSPSCl, Li4SnS4) and oxide cathode Li1–x CoO2 with different delithiation states. Practical improved methods are realized to block the thermochemical interfacial reaction for enhanced thermal stability between sulfide SEs and oxide cathodes.

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Section: Resultsmentioning

confidence: 99%

Section: Flammability Of Sulfide Se and Its Battery Materialsmentioning

confidence: 99%

Thermal Stability between Sulfide Solid Electrolytes and Oxide Cathode

Wang

et al. 2022

ACS Nano

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“…Compared to the LIBs, LMBs suffer from problems such as dendritic Li deposition and unstable solid electrolyte interphase (SEI). 37– 42 During cycling, the SEI is continuously broken and repaired upon Li anode, leading to the continuous accumulation of thermally unstable SEI resulting in potential safety risks at elevated temperature 43–45 . Meanwhile, Li dendrites can increase the specific surface area of Li anode and intensify the serious exothermic reactions between Li metal and other cell components, such as SEI, electrolytes (non‐aqueous and solid‐state electrolytes), and cathodes 46–49 .…”

Section: Introductionmentioning

confidence: 99%

“…[37][38][39][40][41][42] During cycling, the SEI is continuously broken and repaired upon Li anode, leading to the continuous accumulation of thermally unstable SEI resulting in potential safety risks at elevated temperature. [43][44][45] Meanwhile, Li dendrites can increase the specific surface area of Li anode and intensify the serious exothermic reactions between Li metal and other cell components, such as SEI, electrolytes (non-aqueous and solid-state electrolytes), and cathodes. [46][47][48][49] Beside these, thermal decomposition and combustion of electrolytes themself can also aggravate the safety risks.…”

Section: Introductionmentioning

confidence: 99%

Dendrite‐accelerated thermal runaway mechanisms of lithium metal pouch batteries

Cheng

Jiang

et al. 2022

SusMat

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High‐energy‐density lithium metal batteries (LMBs) are widely accepted as promising next‐generation energy storage systems. However, the safety features of practical LMBs are rarely explored quantitatively. Herein, the thermal runaway behaviors of a 3.26 Ah (343 Wh kg−1) Li | LiNi0.5Co0.2Mn0.3O2 pouch cell in the whole life cycle are quantitatively investigated by extended volume‐accelerating rate calorimetry and differential scanning calorimetry. By thermal failure analyses on pristine cell with fresh Li metal, activated cell with once plated dendrites, and 20‐cycled cell with large quantities of dendrites and dead Li, dendrite‐accelerated thermal runaway mechanisms including reaction sequence and heat release contribution are reached. Suppressing dendrite growth and reducing the reactivity between Li metal anode and electrolyte at high temperature are effective strategies to enhance the safety performance of LMBs. These findings can largely enhance the understanding on the thermal runaway behaviors of Li metal pouch cells in practical working conditions.

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“…Without proper management, such heat release can lead to violent exothermic reactions and even catastrophic explosions. 9 Additionally, some abnormal conditions including shorting, overcharging, and other mechanical abuse can also lead to the aforementioned safety issue. This safety issue greatly restricts their widespread application and undermines the confidence of industry in utilizing SCs and is urgent to be solved.…”

Section: Introductionmentioning

confidence: 99%