Capacity fading mechanism during long-term cycling of over-discharged LiCoO2/mesocarbon microbeads battery

Zhang, Lingling; Ma, Yulin; Cheng, Xinqun; Du, Chunyu; Guan, Ting; Cui, Yingzhi; Shu, Sun; Zuo, Pengjian; Gao, Yunzhi; Yin, Geping

doi:10.1016/j.jpowsour.2015.06.040

Cited by 105 publications

(48 citation statements)

References 35 publications

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“…Once the battery is recharged, new SEIs will be formed, consuming active lithium ions and electrolytes. And the new SEI will change the electrochemical properties of the anode, leading to capacity degradation [49]. In the case of deep overcharge, once the anode potential reaches the oxidation potential of copper around 3.5 V (vs. Li + /Li), the copper current collector will be oxidized and Cu 2+ ions will be dissolved into the electrolyte and migrate across the separator [50,51].…”

Section: Lib Behaviors At Various Voltagesmentioning

confidence: 99%

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Building Safe Lithium-Ion Batteries for Electric Vehicles: A Review

Duan

Tang

Dai

et al. 2019

Electrochem. Energ. Rev.

602

260

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Lithium-ion batteries (LIBs), with relatively high energy density and power density, have been considered as a vital energy source in our daily life, especially in electric vehicles. However, energy density and safety related to thermal runaways are the main concerns for their further applications. In order to deeply understand the development of high energy density and safe LIBs, we comprehensively review the safety features of LIBs and the failure mechanisms of cathodes, anodes, separators and electrolyte. The corresponding solutions for designing safer components are systematically proposed. Additionally, the in situ or operando techniques, such as microscopy and spectrum analysis, the fiber Bragg grating sensor and the gas sensor, are summarized to monitor the internal conditions of LIBs in real time. The main purpose of this review is to provide some general guidelines for the design of safe and high energy density batteries from the views of both material and cell levels.

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Section: Lib Behaviors At Various Voltagesmentioning

confidence: 99%

“…Then the Cu 2+ ions will be reduced during the subsequent charging process, leading to the deposition of Cu dendrites on the cathode [50]. With the growth of Cu dendrites, the separator will be penetrated, resulting in self-short and even triggering a thermal runaway [49].…”

Section: Lib Behaviors At Various Voltagesmentioning

confidence: 99%

Building Safe Lithium-Ion Batteries for Electric Vehicles: A Review

Duan

Tang

Dai

et al. 2019

Electrochem. Energ. Rev.

602

260

View full text Add to dashboard Cite

show abstract

“…Specifically, the excessive delithiation of anode causes SEI decomposition during overdischarging [94]. After recharging, the newly regenerated SEI changes the electrochemical properties of the anode [95], resulting in an increase of resistance and the degradation of capac ity [96]. Repeated overdischarge will accelerate battery capacity degradation, the extent of which depends on the depth of discharge [88].…”

Section: Li-ion Battery Fault Mechanismsmentioning

confidence: 99%

Advanced Fault Diagnosis for Lithium-Ion Battery Systems

Hu¹,

Zhang²,

Liu³

et al. 2020

Preprint

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Lithium-ion batteries have become the mainstream energy storage solution for many applications, such as electric vehicles and smart grids. However, various faults in a lithium-ion battery system (LIBS) can potentially cause performance degradation and severe safety issues. Developing advanced fault diagnosis technologies is becoming increasingly critical for the safe operation of LIBS. This paper provides a comprehensive review of fault mechanisms, fault features, and fault diagnosis of various faults in LIBS, including internal battery faults, sensor faults, and actuator faults. Future trends in the development of fault diagnosis technologies for a safer battery system are presented and discussed. IntroductionAs one of the most promising energy storage systems, lithium-ion batteries have been widely used in various applications, such as electric vehicles (EVs) and smart grids. Currently, lithium-ion batteries have become the mainstream energy storage solution, owing to their inherent benefits such as high energy density, high power density, and long lifespan. However, the potential r isks, due to the abusive operating conditions and harsh environment, pose a huge challenge to the safety of Li-ion battery systems (LIBSs). A real-time effective battery management system (BMS) is critical to ensure the safety of LIBSs. BMS has several functionalities, such as state of charge monitoring, thermal management, charging management, and equalization management. It also tracks the health status and monitors the potential faults of LIBS. Without suitable diagnostics and fault handling, a minor fault could eventually lead to severe damages of LIBS [1]. The importance of the fault diagnostics and fault handling has been demonstrated repeatedly in several severe incidents recently [2]- [4].There are different fault modes in the LIBS, and fault mechanisms are usually very complex. From a control perspective, these fault modes can be divided into battery fault, sensor fault, and actuator fault. The battery faults, which include overcharge , overdischarge, overheat, external short circuit (ESC), internal short circuit (ISC), electrolyte le akage, battery swelling, battery accelerated degradation, and thermal runaway (TR), are the most critical faults in the LIBS. These faults are also intertwine d. Overcharge and overdischarge could lead to various undesirable battery side reactions, resultin g in accelerated degradation. These side reactions and gases generated by the chain reactions during TR may eventually cause the battery swelling. Such a swellin g along with mechanical damage may, in turn, lead to electrolyte leakage. The ISC is typically caused by separator failure due to manufacturing defects, overheat, mechanical collisions, or penetration by metal dendrites or mechanical punctures. Fortunatel y, the Joule heat generated by ISC develops into TR only when the equivalent ISC resistance reac hes a very low level [5]. Abnormal heat generation occurs under various conditions, such as side reactions during overcharge/over -di...

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“…The symbol ⌈⌉ means the top integral function. Previous studies 23,24 have proved that over discharging or over charging a battery can cause a severe decline in battery performance. We therefore set a limit on the SOC of the battery.…”

Section: Cost-benefit Models For a Pv-bes Systemmentioning

confidence: 99%

Economic analysis of an industrial photovoltaic system coupling with battery storage

et al. 2019

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Summary The Energy and Evaluation Special Committee of the China Price Association proposed two types of bill for battery energy storage (BES) subsidies in 2017: the first was that energy storage should be subsidised based on the initial installation capacity of BES system, while the second was that it should be subsidised based on the energy discharged by the BES system during the operational period. The economic benefits of a distributed photovoltaic (PV) system or a distributed system with PV and BES in the overall life cycle are discussed in the context of an industrial zone in Shanghai. The results suggest that the net present value (NPV) of a PV‐BES system with an optimised configuration is higher than the NPV of a PV system alone. The NPV of a distributed PV system with four different BESs is found to decrease in the order Li‐ion > NaS > VFB > Pb‐C because of the characteristics of their batteries. The NPVs of PV‐BES systems increase in equal proportion to the increase in the BES subsidy based on installation capacity for these four BES systems, while they show an inequable growth rate of earnings for the same BES subsidy based on the energy discharged over the operational period. The second bill for BES subsidy is more beneficial to the BES industry than the first, as it encourages higher pay for more work.

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Capacity fading mechanism during long-term cycling of over-discharged LiCoO2/mesocarbon microbeads battery

Cited by 105 publications

References 35 publications

Building Safe Lithium-Ion Batteries for Electric Vehicles: A Review

Building Safe Lithium-Ion Batteries for Electric Vehicles: A Review

Advanced Fault Diagnosis for Lithium-Ion Battery Systems

Economic analysis of an industrial photovoltaic system coupling with battery storage

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