Time Sequence Map for Interpreting the Thermal Runaway Mechanism of Lithium-Ion Batteries With LiNixCoyMnzO2 Cathode

Feng, Xuning; Zheng, Siqi; He, Xiangming; Wang, Li; Wang, Yu; Ren, Dongsheng; Ouyang, Minggao

doi:10.3389/fenrg.2018.00126

Cited by 114 publications

(69 citation statements)

References 70 publications

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“…8,9 In 2018, we proposed the time sequence map (TSM) as a new approach to revealing the TR mechanisms for different kinds of LIBs. 10 The TSM narrates the TR process through timelines. The concept of a thermodynamic system helps to categorize the individual physical and/or chemical processes according to the locations where they occur.…”

Section: Mitigating the Thermal Runaway Hazard At The Cell Levelmentioning

confidence: 99%

Mitigating Thermal Runaway of Lithium-Ion Batteries

Feng

Ren

et al. 2020

Joule

Self Cite

952

377

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This paper summarizes the mitigation strategies for the thermal runaway of lithium-ion batteries. The mitigation strategies function at the material level, cell level, and system level. A time-sequence map with states and flows that describe the evolution of the physical and/or chemical processes has been proposed to interpret the mechanisms, both at the cell level and at the system level. At the cell level, the time-sequence map helps clarify the relationship between thermal runaway and fire. At the system level, the time-sequence map depicts the relationship between the expected thermal runaway propagation and the undesired fire pathway. Mitigation strategies are fulfilled by cutting off a specific transformation flow between the states in the time sequence map. The abuse conditions that may trigger thermal runaway are also summarized for the complete protection of lithium-ion batteries. This perspective provides directions for guaranteeing the safety of lithium-ion batteries for electrical energy storage applications in the future.

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Section: Mitigating the Thermal Runaway Hazard At The Cell Levelmentioning

confidence: 99%

Mitigating Thermal Runaway of Lithium-Ion Batteries

Feng

Ren

et al. 2020

Joule

Self Cite

952

377

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“…Hence the substitution of conventional organic electrolytes is feasible to both enhance the energy density and battery safety. [ 5,7 ]…”

Section: Introductionmentioning

confidence: 99%

Toward the Scale‐Up of Solid‐State Lithium Metal Batteries: The Gaps between Lab‐Level Cells and Practical Large‐Format Batteries

Zhao

et al. 2020

Advanced Energy Materials

126

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In addition, LIBs still suffer from high cost, limited durability, and poor safety. [3] As a consequence, an alternative rechargeable battery system is crucial to cope with the growing demands of electric vehicles. [4] The prior demand for a power battery is security. The conventional power batteries suffered from frequent combustion accidents. The ascending voltage of cathodes will lead to stability concerns. Most of the thermal runaway is triggered by the reaction derived from electrodes. [6] The decomposition of cathode materials releases heat and oxygen and will trigger the combustion of flammable organic electrolytes. However, the high-energy cathode is essential for an energy-dense battery. Hence the substitution of conventional organic electrolytes is feasible to both enhance the energy density and battery safety. [5,7] The replacement of organic liquid electrolytes (OLEs) with solid-state electrolytes (SSEs) provides a promising future for the large-scale application of lithium metal batteries (LMBs). SSEs with wide electrochemical stability windows and high modulus possess the potential to enable high-capacity electrode materials and prevent Li dendritic deposition. [8] Besides, the SSEs also possess good thermal stability, which enables a wide operation temperature range and avoid the combustion risk. The introduction of SSEs allows a simplified battery design and minimization of inactive materials, consequently increasing energy density at the cell-level. Moreover, the solid-state electrolytes enable the employment of Li metal anodes, which is considered as the most promising anode for next-generation rechargeable batteries due to its ultrahigh theoretical specific capacity of 3860 mAh g −1 and lowest negative electrochemical potential (−3.04 V vs the standard hydrogen electrode). [9] In conventional organic electrolytes, lithium metal suffers from the unstable solid-state interphase, dendrite penetration, and pulverization issues. [1c,10] The rapid deterioration of LMBs is attributed to the high reactivity of lithium metal. [11] Virtually most conventional OLEs can be reduced at the Li surface, forming unstable solid electrolyte interphase (SEI). During repeated charge-discharge cycles, Li tends to generate dendritic morphology because of nonuniform current/ion distribution. [12] Lithium dendrites normally lead to the fracture and regeneration of SEI, further aggravating the dendrite growth. [12a,13] The The scale-up process of solid-state lithium metal batteries is of great importance in the context of improving the safety and energy density of battery systems. Replacing the conventional organic liquid electrolytes (OLEs) with solid-state electrolytes (SSEs) opens a new path for addressing increasing energy demands. Advanced approaches have been validated in lab-scale cells, but only a few successful results can be applied on the practical scale. Herein, the battery systems enabled by SSEs are briefly reviewed and the difficulties and challenges for both lab-level cells and large-scale batteries from...

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“…The time‐dependent TR mechanisms of batteries could be analyzed through the time sequence map (TSM) approach. [ 119 ] The specific chemical and/or physical TR process occur inside and outside the battery could be classified by TSM approach. The mitigation strategies and TR states of Li‐ion battery with LE are shown in Figure 8 .…”

Section: Mechanism Of Trmentioning

confidence: 99%

Solid Electrolytes for High‐Temperature Stable Batteries and Supercapacitors

Kumaravel

Bartlett

Pillai

2020

Advanced Energy Materials

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Reports of recent fire accidents in the electronics and electric vehicles (EVs) industries show that thermal runaway (TR) reactions are a key consideration for the industry. Utilization of solid electrolytes (SEs) could be an important solution in to the TR issues connected to exothermic electrochemical reactions. Data on the thermal stability of modern SEs, ionic transport mechanisms, kinetics, thermal models, recent advances, challenges, and future prospects are presented in this review. Ceramic polymer nanocomposites are the most appropriate SEs for high‐temperature stable batteries (in the range of 80–200 °C). Hydrogels and ionogels can be employed as stable, flexible, and mechanically durable SEs for antifreeze (up to –50 °C) and high‐temperature (up to 200 °C) applications in supercapacitors. Besides the thermal safety features, SEs can also prolong the lifecycle of energy storage devices in next‐generation EVs, space devices, aviation gadgets, defense tools, and mobile electronics.

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Time Sequence Map for Interpreting the Thermal Runaway Mechanism of Lithium-Ion Batteries With LiNixCoyMnzO2 Cathode

Cited by 114 publications

References 70 publications

Mitigating Thermal Runaway of Lithium-Ion Batteries

Mitigating Thermal Runaway of Lithium-Ion Batteries

Toward the Scale‐Up of Solid‐State Lithium Metal Batteries: The Gaps between Lab‐Level Cells and Practical Large‐Format Batteries

Solid Electrolytes for High‐Temperature Stable Batteries and Supercapacitors

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