Exothermic behaviors of mechanically abused lithium-ion batteries with dibenzylamine

Shi, Yang; Noelle, Daniel J.; Wang, Meng; Le, Anh V.; Yoon, Hargsoon; Zhang, Minghao; Meng, Ying Shirley; Qiao, Yu

doi:10.1016/j.jpowsour.2016.07.034

Cited by 19 publications

(25 citation statements)

References 40 publications

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“…A similar trend was presented with the 1 Ah capacity pouch cell by Fang et al, although the values differ as the battery under consideration is different from previously studied [21]. There are few researches which focus on the increase in charge transfer resistance by using thermal runaway retardant (TRR) such as dibenzylamine [18], by using flexible separators, or by using high-viscosity protection films [31]. With decrease of internal resistance, the contribution of heat source from the short circuit increased due to a higher short-circuit current with constant contact resistance (constant size of penetrating element) [31].…”

Section: Effect Of the Location Of The Penetrating Elementsupporting

confidence: 66%

“…Shi et al conducted an experimental study on the exothermic behavior of LIB under mechanical abuse and suggested that dibenzylamine (DBA) could be used to prevent thermal runaway. The authors suggested that under normal conditions DBA does not affect the battery performance, and during mechanical abuse, DBA is released, which increases electrolyte resistivity preventing thermal runaway [18]. Vyroubal et al presented a finite element model of nail penetration into the lithium-ion battery and showed that shorting resistance has a significant influence on the cell electrochemical-thermal process of batteries [19].…”

Section: Introductionmentioning

confidence: 99%

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Thermal Abuse Behavior of the LIR2450 Micro Coin Cell Battery Having Capacity of 120 mAh with Internal Short Circuit by Penetrating Element

et al. 2020

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Internal short circuit in lithium-ion battery by penetrating element leads to exothermic behavior due to accumulated heat. In the present study, investigations are conducted on the thermal behavior of the LIR2450 micro coin cell haivng capacity of 120 mAh, with internal short circuit by penetrating element. The experimental coin cell discharge study was conducted and validated with numerical study within ±5.0%. The effect of penetrating element size, location of penetrating element, state of charge, discharge rate, short-circuit resistance, and heat transfer co-efficient on maximum coin cell temperature and heat generation rate are analyzed. The penetrating element diameters of 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, and 3.5 mm are considered. The effect of initial state of charge (SOC) is considered with 100%, 80%, 60%, and 40%. Three locations for penetrating element are considered with the center, the middle of the radius, and on the edge of the coin cell radius. The different discharge rates of 1C, 2C, 3C, and 4C are considered. The higher-penetrating element size of 3.5 mm with location at the center of the coin cell with 100% SOC showed maximum heat generation rate and maximum temperature of the coin cell. In addition, the optimum value of the dimensionless heat generation rate is obtained at dimensionless short-circuit resistance. The study provides comprehensive insights on the thermal behavior of the lithium-ion cell during thermal abuse condition with internal short circuit by penetrating element.

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Section: Effect Of the Location Of The Penetrating Elementsupporting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Thermal Abuse Behavior of the LIR2450 Micro Coin Cell Battery Having Capacity of 120 mAh with Internal Short Circuit by Penetrating Element

et al. 2020

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“…These mechanisms are thermally triggered, inefficient in severe shorting caused by intense mechanical abuse. To address mechanically induced thermal runway, we investigated mechanically triggered thermalrunaway mitigation methods, e.g., by adding damage homogenizers (DHs) 13 or thermal-runaway retardants (TRRs) 14 in LIB cells. The DH additives could be microparticles of carbon black (CB) or carbon nanotubes.…”

Section: Introductionmentioning

confidence: 99%

Sigmoidal current collector for lithium-ion battery

Wang

Shi

et al. 2017

Journal of Applied Physics

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In the current study, we investigated sigmoidal current collector in lithium-ion battery (LIB). Traditionally, the active material in an LIB electrode is coated on a flat current collector. By rendering the current collector sigmoidal-shaped, cracking and debonding of active material layer could be promoted, which would considerably increase the internal impedance, as the LIB is mechanically abused, beneficial to thermal-runaway mitigation. The energy absorption capacity is also improved, enabling multifunctional LIB cell design. This technique has important relevance to large-sized LIB systems, for which cell robustness and fire safety are prioritized.Published by AIP Publishing. [http://dx.

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“…For Lithium Nickel Manganese Cobalt Oxide (NMC) AMs, the onset temperature of thermal runaway is around 170 °C . Other TRM methods include shut‐down separators, damage homogenizers, thermal‐runaway retardants, and deformed current collector…”

Section: Introductionmentioning

confidence: 99%

Mitigating thermal runaway of lithium‐ion battery by using thermally sensitive polymer blend as cathode binder

Wang

Noelle

et al. 2017

J of Applied Polymer Sci

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Thermally sensitive binder (TSB) is developed as an internal safety mechanism of lithium-ion battery (LIB). The TSB is a polymer blend of poly(vinylidene fluoride) (PVDF) and poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP). Compared with regular PVDF binder, the softening and swelling of TSB are more pronounced when temperature is above 110 8C. With the TSB, the cycling performance of LIB cell is not affected; upon nail penetration, the heat generation rate is significantly reduced. The crystallinity of TSB is an important factor. This technology may lead to the development of thermal-runaway-mitigating LIB cells. V C 2017Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45737.

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Exothermic behaviors of mechanically abused lithium-ion batteries with dibenzylamine

Cited by 19 publications

References 40 publications

Thermal Abuse Behavior of the LIR2450 Micro Coin Cell Battery Having Capacity of 120 mAh with Internal Short Circuit by Penetrating Element

Thermal Abuse Behavior of the LIR2450 Micro Coin Cell Battery Having Capacity of 120 mAh with Internal Short Circuit by Penetrating Element

Sigmoidal current collector for lithium-ion battery

Mitigating thermal runaway of lithium‐ion battery by using thermally sensitive polymer blend as cathode binder

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