Overcharge failure investigation of lithium-ion batteries

Yuan, QingFeng; Zhao, Fenggang; Wang, Weidong; Zhao, Yanming; Liang, Zhiyong; Yan, Danlin

doi:10.1016/j.electacta.2015.07.147

Cited by 218 publications

(109 citation statements)

References 20 publications

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“…Sci. 2017, 7, 1314 18 of 20 anode [7,28,29]. Li metals are sticky and will puncture the separator between the cathode and anode, resulting in the short circuiting of the battery.…”

Section: Discussionmentioning

confidence: 99%

Investigation into the Fire Hazards of Lithium-Ion Batteries under Overcharging

et al. 2017

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Numerous lithium-ion battery (LIB) fires and explosions have raised serious concerns about the safety issued associated with LIBs; some of these incidents were mainly caused by overcharging of LIBs. Therefore, to have a better understanding of the fire hazards caused by LIB overcharging, two widely used commercial LIBs, nickel manganese cobalt oxide (NMC) and lithium iron phosphate (LFP), with different cut-off voltages (4.2 V, 4.5 V, 4.8 V and 5.0 V), were tested in this work. Some parameters including the surface temperature, the flame temperature, voltage, and radiative heat flux were measured and analyzed. The results indicate that the initial discharging voltage increases with the growth of charge cut-off voltage. Moreover, the higher the cut-off voltage, the longer the discharging time to reach 2.5 V. An overcharged LIB will undergo a more violent combustion process and has lower stability than a normal one, and the increasing cut-off voltage aggravates the severity. In addition, it is also revealed that the NMC fails earlier than the LFP under the same condition. The temperatures for safety vent cracking, ignition, and thermal runaway of LIBs exhibit similar values for the same condition, which demonstrates that the LIB will fail at a certain temperature. Finally, the peak heat flux, total radiative heat flux, and total radiative heat will rise with the increase in voltage.

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“…Sci. 2017, 7, 1314 18 of 20 anode [7,28,29]. Li metals are sticky and will puncture the separator between the cathode and anode, resulting in the short circuiting of the battery.…”

Section: Discussionmentioning

confidence: 99%

Investigation into the Fire Hazards of Lithium-Ion Batteries under Overcharging

et al. 2017

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“…Nonetheless, organic solvent based electrolytes are usually highly flammable, which causes safety concerns, particularly when the EES device is to work at high charging currents and high cell voltages. Problems with organic electrolyte based Li-ion batteries are often reported [92,93], and the same or similar situations are expected for supercapacitors with organic electrolytes.…”

Section: Materials For Supercapatterymentioning

confidence: 99%

Supercapacitor and supercapattery as emerging electrochemical energy stores

Chen

2016

International Materials Reviews

607

199

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This article reviews critically selected recent literature on electrochemical energy storage (EES) technologies, focusing on supercapacitor and also supercapattery which is a generic term for various hybrid devices combining the merits of rechargeable battery and supercapacitor. Fundamentals of EES are explained, aiming at clarification of some literature confusions such as the differences between capacitive and non-capacitive Faradaic charge storage mechanisms, and between cathode and positive electrode (positrode), and between anode and negative electrode (negatrode). In particular, the concept and origin of pseudocapacitance are qualitatively correlated with the band model for semiconductors. Strategies for design and construction of supercapattery are discussed in terms of both the materials structures and device engineering. Selection of materials, including electrolytes, is another topic reviewed selectively. Graphenes and carbon nanotubes are the favourable choice to composite with both capacitive and non-capacitive redox materials for improved kinetics of charge storage processes and charge-discharge cycling stability. Organoaqueous electrolytes show a great potential to enable EES to work at sub-zero temperatures, while solid ion conducting membranes and ionic liquids can help develop high voltage (>4.0 V) and hence high energy supercapatteries. ARTICLE HISTORY

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“…Moreover, a deconvolution‐based method was adopted to accurately analyze and identify the thermal characteristics and factors that influence battery runaway according to the C80 experimental results . Enlarged resistance was determined to be the main influence on thermal runaway, which was consistent with the conclusions of Yuan . They considered that internal resistance remains unchanged before 140% SOC but rapidly increases in the range of 140% to 160% SOC.…”

Section: Introductionmentioning

confidence: 65%

Theoretical analysis of lithium‐ion battery failure characteristics under different states of charge

Jiang

Wang

et al. 2018

Fire and Materials

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Summary Lithium‐ion batteries (LIBs) are extensively applied in various portable electronic equipment because of their high energy density power. However, accidents related to LIBs frequently occur. This study focuses on failure results, characteristics, and phenomena. Lithium‐ion batteries under different states of charge (SOCs) (0%, 30%, 50%, 80%, 100%, and 120%) at high temperatures have been investigated with the thermal abuse test. During the experiments, several typical failure processes were captured. According to the phenomena, 2 failure modes (smoke and jet fire) and 3 stages (primary reaction, tempestuous reaction in the middle time period, and extinguishing reaction in the final stage) were observed. A substantial amount of gas was vented, and jet fire was detected in the middle period. Only gas vented when the SOC was lower than 50%, whereas vented gas and jet fire were detected simultaneously when the SOC exceeded 50%. The results indicated combustible behaviors and exothermic reactions related to the SOC. An increase in the SOC caused a decrease in the thermal runaway initial temperature and the maximum increase in temperature. A higher SOC determined intense chemical reactions in the cell at higher temperatures, which caused a significant amount of materials to spew out of the batteries as well as additional mass loss. Relationships between failure characteristics and internal reactions were analyzed. The SOC should be lower than 50% in transportation or storage. The intercalated lithium capacities were the main reason for the series of domino reactions, which caused runaway in the terminal. These studies can serve as a reference for safety applications, transportation, and loss prevention in LIBs.

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Overcharge failure investigation of lithium-ion batteries

Cited by 218 publications

References 20 publications

Investigation into the Fire Hazards of Lithium-Ion Batteries under Overcharging

Investigation into the Fire Hazards of Lithium-Ion Batteries under Overcharging

Supercapacitor and supercapattery as emerging electrochemical energy stores

Theoretical analysis of lithium‐ion battery failure characteristics under different states of charge

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