Performances and thermal stability of LiCoO2 cathodes encapsulated by a new gel polymer electrolyte

Lee, Sang Young; Kim, Seok Koo; Ahn, Soonho

doi:10.1016/j.jpowsour.2007.06.155

Cited by 10 publications

(4 citation statements)

References 18 publications

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“…The transition metal oxides acting as cathode material undergo breakdown, releasing oxygen at a temperature of around 200 °C in the case of LiCoO 2 [ 150 , 151 , 152 , 153 , 154 ].

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Section: Failure Modes Of Libsmentioning

confidence: 99%

Cause and Mitigation of Lithium-Ion Battery Failure—A Review

et al. 2021

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Lithium-ion batteries (LiBs) are seen as a viable option to meet the rising demand for energy storage. To meet this requirement, substantial research is being accomplished in battery materials as well as operational safety. LiBs are delicate and may fail if not handled properly. The failure modes and mechanisms for any system can be derived using different methodologies like failure mode effects analysis (FMEA) and failure mode methods effects analysis (FMMEA). FMMEA is used in this paper as it helps to identify the reliability of a system at the component level focusing on the physics causing the observed failures and should thus be superior to the more data-driven FMEA approach. Mitigation strategies in LiBs to overcome the failure modes can be categorized as intrinsic safety, additional protection devices, and fire inhibition and ventilation. Intrinsic safety involves modifications of materials in anode, cathode, and electrolyte. Additives added to the electrolyte enhance the properties assisting in the improvement of solid-electrolyte interphase and stability. Protection devices include vents, circuit breakers, fuses, current interrupt devices, and positive temperature coefficient devices. Battery thermal management is also a protection method to maintain the temperature below the threshold level, it includes air, liquid, and phase change material-based cooling. Fire identification at the preliminary stage and introducing fire suppressive additives is very critical. This review paper provides a brief overview of advancements in battery chemistries, relevant modes, methods, and mechanisms of potential failures, and finally the required mitigation strategies to overcome these failures.

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“…The transition metal oxides acting as cathode material undergo breakdown, releasing oxygen at a temperature of around 200 °C in the case of LiCoO 2 [ 150 , 151 , 152 , 153 , 154 ].

…”

Section: Failure Modes Of Libsmentioning

confidence: 99%

Cause and Mitigation of Lithium-Ion Battery Failure—A Review

et al. 2021

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“…Basumallick and Lee et al , found that polymer gel electrolyte can effectively inhibit the thickening of SEI film by suppressing undesirable interfacial reactions of LiCoO 2 with a liquid electrolyte, and thus the cycle performance of Li‐ion battery could be significantly improved. Zhou et al demonstrated that by adding 5 wt % poly[bis‐(ethoxyethoxyethoxy) phosphazene] into the electrolyte, the capacity retention of Li/LiCoO 2 half‐cell assembling increased from 51.2 % to 89.9 % after 100 cycles.…”

Section: Surface Modificationmentioning

confidence: 99%

Performance Improvements of Cobalt Oxide Cathodes for Rechargeable Lithium Batteries

Tian

Zhang

et al. 2018

ChemBioEng Reviews

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Lithium‐ion batteries are essential mobile power sources for portable devices and energy supplies. Among the various cathode materials, cobalt oxides are the most important materials used in lithium‐ion batteries. But the intrinsic drawbacks of cobalt oxides restrict their wide application. In this paper, we present an overview of current approaches to improve the electrochemical performance of the cathode materials, as well as the capacity and cycling capability of the lithium‐ion batteries.

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“…It is generally recognized that most of the heat produced during thermal runaway is caused by the decomposition of the solid electrolyte interface (SEI), by reactions between the electrodes (anode and cathode) and the electrolyte, by the electrolyte decomposition, and by some other phenomena [11,[54][55][56][57][58][59].…”

Section: Introductionmentioning

confidence: 99%

Simulation of the Thermal Runaway Onset in Li-Ion Cells—Influence of Cathode Materials and Operating Conditions

et al. 2022

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Li-ion batteries are already being used in several applications, from portable devices to the automotive industry, and they represent a promising option also for other critical uses, such as in the storage of energy from renewable sources. However, two of the main concerns that still hinder their massive introduction in these further areas, are their safety and reliability. Depending on cell characteristics and operating conditions, the heat generated within the cell can exceed that dissipated from its surface, and the cell will fail, possibly with catastrophic consequences. To identify the hazardous working conditions of a cell, a simulation model including the main exothermic reactions was set up to investigate the onset of thermal runaway in several Li-ion cell configurations under various operating conditions. The behavior of four different cathodes under thermal abuse and the influence of external factors such as the environmental temperature and the cooling system efficiency were assessed. It was found that among those investigated, the lithium iron phosphate cathode is characterized by a higher thermal stability and that an efficient superficial heat exchange can prevent thermal runaway in most of the cases.

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Performances and thermal stability of LiCoO2 cathodes encapsulated by a new gel polymer electrolyte

Cited by 10 publications

References 18 publications

Cause and Mitigation of Lithium-Ion Battery Failure—A Review

Cause and Mitigation of Lithium-Ion Battery Failure—A Review

Performance Improvements of Cobalt Oxide Cathodes for Rechargeable Lithium Batteries

Simulation of the Thermal Runaway Onset in Li-Ion Cells—Influence of Cathode Materials and Operating Conditions

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