On safety of lithium-ion cells

Biensan, P.; Simon, Bernard; Pérès, Jean-Paul; Guibert, A. de; Broussely, M.; Bodet, J.M.; Perton, Francis

doi:10.1016/s0378-7753(99)00135-4

Cited by 319 publications

(173 citation statements)

References 6 publications

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“…[11,20,21] At the initial stage of temperature increase, the solid-electrolyte interface (SEI) layer formed on the anode decomposesa nd heat generation commencesa ta bout 69 8C. The exothermic reaction between the lithiated anode and electrolyte also generates heat between 110a nd 150 8C.…”

Section: Resultsmentioning

confidence: 99%

Improved Thermal Stability of Lithium‐Rich Layered Oxide by Fluorine Doping

et al. 2017

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The thermal stability of lithium‐rich layered oxide with the composition Li(Li1/6Ni1/6Co1/6Mn1/2)O2−xFx (x=0.00 and 0.05) is evaluated for use as a cathode material in lithium‐ion batteries. Thermogravimetric analysis, evolved gas analysis, and differential scanning calorimetry show that, upon fluorine doping, degradation of the lithium‐rich layered oxides commences at higher temperatures and the exothermic reaction is suppressed. Hot box tests also reveal that the prismatic cell with the fluorine‐doped powder does not explode, whereas that with the undoped one explodes at about 135 °C with a sudden temperature increase. XRD analysis indicates that fluorine doping imparts the lithium‐rich layered oxide with better thermal stability by mitigating oxygen release at elevated temperatures that cause an exothermic reaction with the electrolyte. The origin of the reduced oxygen release from the fluorinated lithium‐rich layered oxide is also discussed.

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Section: Resultsmentioning

confidence: 99%

Improved Thermal Stability of Lithium‐Rich Layered Oxide by Fluorine Doping

et al. 2017

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“…• C. Richard and Dahn 19 and Biensan et al 22 analyzed the thermal stability of intercalated graphite and found a heat release peak at 120…”

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confidence: 99%

“…22,26 The exact decomposition reaction, trigger temperature, and released heat are dependent on the solvent in question. 27 Abuse testing cells by subjecting them to off-nominal conditions can provide valuable insight into the probability and severity of a thermal runaway scenario.…”

mentioning

confidence: 99%

Characterization of Lithium-Ion Battery Thermal Abuse Behavior Using Experimental and Computational Analysis

López

Jeevarajan

Mukherjee

2015

J. Electrochem. Soc.

182

126

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While the popularity of lithium-ion batteries (LIBs) has increased significantly in recent years, safety concerns due to the high thermal instability of LIBs limit their use in applications with zero tolerance for a catastrophic failure. Industries such as aerospace and automotive must be very stringent in their selection and design of lithium-ion cells and modules to meet safety requirements. A safety issue of particular interest is a scenario called thermal runaway in which one or more exothermic side-reactions occur, leading to elevated temperature ranges that in turn lead to an uncontrollable and excessive release of heat. This work aims to characterize the effect of these reactions by utilizing a thermal abuse model that predicts single-cell behavior when subjected to an elevatedtemperature. The experimental test of the thermal safety behavior includes a constant-power heating element to trigger a thermal runaway event. This study takes an existing thermal abuse model and modifies it to emulate the conditions during a constant-power heating test. The result is found to be in agreement with the experimental data for different cell configurations. The influence of convection condition, cell physical configuration, and electrolyte combustion on the cell thermal behavior is also investigated.

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“…The authors conclude that the heat generation from the decomposition of PE materials and reaction of that with electrolyte initiates thermal runaway in a Li-ion cell subjected to thermal or other abuse exposures. In (Biensan et al, 1999) all parameter identified from the DSC studies suggested that the reaction kinetics at the negative electrode, the binder nature (fluorinated or not), the state of charge of positive materials are the deciding ones for ascertaining the maximum safety voltage of the cell. Through nail tests on 4/5A size cells reported the safe voltage for a cell with cobalt oxide cathode is higher than that of nickel oxide cathode and with non fluorinated binder than with polyvinylidene fluoride binder.…”

Section: Abuse Test Behavior Of the Cellsmentioning

confidence: 99%