Research Status and Analysis for Battery Safety Accidents in Electric Vehicles

Chen, Zeyu; Xiong, Rui; Sun, Fuchun

doi:10.3901/jme.2019.24.093

Cited by 57 publications

(5 citation statements)

References 14 publications

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“…However, the safety of lithium-ion batteries is the stumbling block that restricts their large-scale application. The safety problem is mainly manifested in the fire caused by the thermal runaway because of overcharging, short circuits, and impacts, − which is a great challenge for the development of lithium-ion batteries. Methods to improve the safety of lithium-ion batteries include the modification of electrolyte, − surface treatment of separators, , modification of the cathode, development of battery management systems, and application of flame retardants.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Flame Retardancy of Microcapsules Based on Ammonium Polyphosphate and Aluminum Hydroxide for Lithium-Ion Batteries

Yang

Jiang

et al. 2021

ACS Omega

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Flame retardants have important theoretical research and applied value for lithium-ion battery safety. Microcapsule flame retardants based on ammonium polyphosphate (APP) and aluminum hydroxide (ATH) were synthesized for application in lithium-ion batteries. First, the ATH–APP was prepared by coating a layer of ATH on the surface of the core APP. Then, the ATH–APP was encapsulated by poly(urea-formaldehyde) (PUF) to obtain en-ATH–APP. The structure and flame-retardant property of en-ATH–APP, the influence of en-ATH–APP on the thermal stability of the electrode, and the electrochemical performance of the battery were studied. The results of Fourier transform infrared and scanning electron microscope experiments indicated that APP was coated with ATH and PUF in turn. The results of differential scanning calorimetry and the fire extinguishing test for electrodes manifested that en-ATH–APP had better flame-retardant property than APP because of the synergistic effect between APP and ATH. Moreover, the flame-retardant efficiency of en-ATH–APP was comparable to that of ATH–APP, indicating that the presence of PUF had almost no effect on the flame-retardant property. The results of electrochemical experiments indicated that en-ATH–APP had the best electrochemical compatibility for the battery compared with APP and ATH–APP. The research lights the way to improve inherent safety of lithium-ion batteries by adding en-ATH–APP to the cathode.

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Section: Introductionmentioning

confidence: 99%

Synergistic Flame Retardancy of Microcapsules Based on Ammonium Polyphosphate and Aluminum Hydroxide for Lithium-Ion Batteries

Yang

Jiang

et al. 2021

ACS Omega

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“…There are three types of battery short circuits from the perspective of a trigger mechanism; namely, a battery short circuit caused by overcharge/discharge, a battery short circuit caused by mechanical damage, and a self-induced battery short circuit. Compared with the other two types of battery short circuits, the self-induced battery short circuit features strong latency and long action duration [47].…”

Section: Battery Short Circuitmentioning

confidence: 99%

Review of the Charging Safety and Charging Safety Protection of Electric Vehicles

Jiang

Diao

Zhang

et al. 2021

WEVJ

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With the continuous development of society and the economy and the popularization of the environmental protection concept, more and more people have begun to turn to electric vehicles. The application of electric vehicles can effectively avoid the damage caused by automobile fuel emissions to the surrounding environment and promote the development and utilization of new energy. However, the development of the electric vehicle industry has led to frequent accidents related to charging safety. In order to prevent accidents related to the charging safety of electric vehicles and ensure proper safety of passengers and people, the charging safety and charging safety protection methods of electric vehicles have become the research priorities for scholars. This paper reviewed the existing research results on the charging safety of electric vehicles, analyzed the influencing factors of the charging safety of electric vehicles, summarized the charging safety protection methods, and forecast the future research direction of charging safety, which has reference value and reference significance for the charging safety research of electric vehicles.

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“…The development of new energy vehicles, represented by electric cars, have become a trend. With the continuous development of new energy vehicles, there have been more and more reports of related fire incidents [2] . Among them, the fire problem caused by power battery burning car is more prominent.…”

Section: Introductionmentioning

confidence: 99%

A thermal runaway risk warning scheme for power batteries

Wen,

Chen,

Wang

et al. 2024

International Conference on Smart Transportation and City Engineering (STCE 2023)

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With the rapid development of electric vehicles, the safety issues caused by overheating of power batteries are increasing, and even affecting the users' lives. Based on this, the state has issued relevant policies requiring measures to inform users before power batteries thermal runaway occur. In this paper, a set of early warning scheme for thermal runaway of power batteries based on DCF is designed. The core of this scheme is the monitoring algorithm of DCF integrated power batteries system, which combines the relevant information of DCF to actively push early warning information to vehicle users and restrict related activities within a certain period of time. In addition, a maintenance manual is generated for risky vehicles for maintenance personnel to use, so as to reduce the risk of thermal runaway caused by power batteries in the above way.

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Research Status and Analysis for Battery Safety Accidents in Electric Vehicles

Cited by 57 publications

References 14 publications

Synergistic Flame Retardancy of Microcapsules Based on Ammonium Polyphosphate and Aluminum Hydroxide for Lithium-Ion Batteries

Synergistic Flame Retardancy of Microcapsules Based on Ammonium Polyphosphate and Aluminum Hydroxide for Lithium-Ion Batteries

Review of the Charging Safety and Charging Safety Protection of Electric Vehicles

A thermal runaway risk warning scheme for power batteries

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