Study of Thermal Runaway Electrochemical Reactions in Alkaline Batteries

Galushkin, Nikolay E.; Yazvinskaya, Nataliya N.; Галушкин, Д. Н.

doi:10.1149/2.0461510jes

Cited by 27 publications

(13 citation statements)

References 16 publications

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“…The thermal runaway of lithiumion batteries can be divided into four stages after consulting the relevant literature and exploring the experimental process in this work according to our literature research and study. [37][38][39] As shown in Fig. 2, in the first stage between 69℃ and 120℃ when thermal runaway occurs in lithium-ion batteries, SEI layers which mainly consists of stable or metastable components (such as LiF, Li 2 CO 3 ROCO 2 Li, (CH 2 OCO 2 Li) 2 , and ROLi Li 2 CO 3 ) break down and regenerate, lithium-ion batteries will release some combustible gas in this process.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of a microcapsule extinguishing agent with a core–shell structure for lithium-ion battery fire safety

Zhang

et al. 2021

Mater. Adv.

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Section: Resultsmentioning

confidence: 99%

Fabrication of a microcapsule extinguishing agent with a core–shell structure for lithium-ion battery fire safety

Zhang

et al. 2021

Mater. Adv.

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“…During battery charging, hydrides are formed only in the thin surface layer of the electrodes [ 19 ] and the gravimetric capacity of the electrodes increases insignificantly.…”

Section: Introductionmentioning

confidence: 99%

Research of Nanomaterials as Electrodes for Electrochemical Energy Storage

et al. 2022

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This paper has experimentally proved that hydrogen accumulates in large quantities in metal-ceramic and pocket electrodes of alkaline batteries during their operation. Hydrogen accumulates in the electrodes in an atomic form. After the release of hydrogen from the electrodes, a powerful exothermic reaction of atomic hydrogen recombination with a large energy release occurs. This exothermic reaction is the cause of thermal runaway in alkaline batteries. For the KSL-15 battery, the gravimetric capacity of sintered nickel matrix of the oxide-nickel electrode, as hydrogen storage, is 20.2 wt%, and cadmium electrode is 11.5 wt%. The stored energy density in the metal-ceramic matrix of the oxide-nickel electrode of the battery KSL-15 is 44 kJ/g, and in the cadmium electrode it is 25 kJ/g. The similar values for the KPL-14 battery are as follows. The gravimetric capacity of the active substance of the pocket oxide-nickel electrode, as a hydrogen storage, is 22 wt%, and the cadmium electrode is 16.9 wt%. The density of the stored energy in the active substance oxide-nickel electrode is 48 kJ/g, and in the active substance of the cadmium electrode it is 36.8 kJ/g. The obtained results of the accumulation of hydrogen energy in the electrodes by the electrochemical method are three times higher than any previously obtained results using the traditional thermochemical method.

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“…That is why very often at building of practical models of batteries, statistical models are used [2,3,[12][13][14][15]. Also the statistical models are used, when there is a need in modeling of such poorly studied phenomena in batteries as the thermal runaway [16,17] or the hydrogen accumulation in electrodes [18,19]. This study is aimed at analysis of parameters variation of the generalized Peukert's equations for batteries of various modes of discharge as these equations are used very often in different models of batteries [2,3].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the dependence of the parameters of the generalized Peukert’s equations on the capacity for nickel-cadmium batteries

et al. 2019

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In this paper, the use possibility was analyzed of the most wellknown generalized Peukert’s equations, for computing of released capacity of nickel-cadmium batteries at different discharge currents. It was proved that these equations correspond well to experimental data throughout the entire variation interval of discharge currents. It was shown that the parameter n does not depend on a nominal capacity of a batteries under examination. Farther, it was shown that a functional dependence of a battery’s released capacity with a discharge current is determined by the statistical phase transition subjected to the normal distribution law.

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Study of Thermal Runaway Electrochemical Reactions in Alkaline Batteries

Cited by 27 publications

References 16 publications

Fabrication of a microcapsule extinguishing agent with a core–shell structure for lithium-ion battery fire safety

Fabrication of a microcapsule extinguishing agent with a core–shell structure for lithium-ion battery fire safety

Research of Nanomaterials as Electrodes for Electrochemical Energy Storage

Analysis of the dependence of the parameters of the generalized Peukert’s equations on the capacity for nickel-cadmium batteries

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