Understanding of performance degradation of LiNi0.80Co0.10Mn0.10O2 cathode material operating at high potentials

Zhang, Sheng S.

doi:10.1016/j.jechem.2019.05.013

Cited by 174 publications

(91 citation statements)

References 61 publications

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“…The side reactions between the highly reactive delithiated cathode material and the electrolyte solution (i.e.,electrolyte degradation and gas generation) is one of the challenges that need to be overcome for the massive deployment of Ni-rich cathode based LIBs [87]. The evolution of a highly detrimental surface reaction layer (ca.…”

Section: Electrolyte Degradation and Interphasial Reactionsmentioning

confidence: 99%

Degradation and Aging Routes of Ni-Rich Cathode Based Li-Ion Batteries

et al. 2020

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Driven by the increasing plea for greener transportation and efficient integration of renewable energy sources, Ni-rich metal layered oxides, namely NMC, Li [Ni1−x−yCoyMnz] O2 (x + y ≤ 0.4), and NCA, Li [Ni1−x−yCoxAly] O2, cathode materials have garnered huge attention for the development of Next-Generation lithium-ion batteries (LIBs). The impetus behind such huge celebrity includes their higher capacity and cost effectiveness when compared to the-state-of-the-art LiCoO2 (LCO) and other low Ni content NMC versions. However, despite all the beneficial attributes, the large-scale deployment of Ni-rich NMC based LIBs poses a technical challenge due to less stability of the cathode/electrolyte interphase (CEI) and diverse degradation processes that are associated with electrolyte decomposition, transition metal cation dissolution, cation–mixing, oxygen release reaction etc. Here, the potential degradation routes, recent efforts and enabling strategies for mitigating the core challenges of Ni-rich NMC cathode materials are presented and assessed. In the end, the review shed light on the perspectives for the future research directions of Ni-rich cathode materials.

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Section: Electrolyte Degradation and Interphasial Reactionsmentioning

confidence: 99%

Degradation and Aging Routes of Ni-Rich Cathode Based Li-Ion Batteries

et al. 2020

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“…Consequently, the transmission of Li‐ion is impeded, resulting in a degraded performance and reduced battery thermal stability. Zhang 15 found that nearly all the identified issues with NCM811 materials could be attributed to the oxidation of lattice oxygen occurring in the capacity region corresponding to the H2‐H3 phase transition. The loss of oxygen results in an irreversible layered‐spinel‐rock salt phase transition, secondary particle cracking, and performance degradation.…”

Section: Introductionmentioning

confidence: 99%

Effect of high Ni on battery thermal safety

Wang

Zheng

et al. 2020

Int J Energy Res

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Frequent accidents involving Li-ion batteries have prompted higher safety requirements for these batteries. In this study, the high-temperature, thermal runaway (TR) characteristic parameters at 100% state of charge (SOC) for cylindrical NCM811 batteries with a high-energy density were compared to the widely commercialized NCM523 batteries. The average TR trigger temperature of NCM811 battery was 157.54 C, which was 20.62 C lower than that of NCM523. Moreover, the average TR maximum temperature of NCM811 battery is 858.22 C, which was 212.81 C higher than that of NCM523. The maximum TR temperature of the NCM811 battery was 1289.53 C. The high Ni batteries exhibited poor thermal stability and severe TR. An increase in the Ni

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“…Serious electrolyte decomposition will occur when the layered ternary oxide cathode materials are charged to a higher voltage due to the narrow voltage windows of commercialized electrolyte and chemical oxidation of electrolyte solvents caused by active oxygen, [ 80‐81 ] which will not only consume available Li ions from the electrolyte and cathodes and form high impedance surface layer under high‐voltage operating conditions, [ 82‐84 ] but also result in electrolyte depletion and gas generation. [ 85‐86 ] For example, by the decomposition process, LiPF 6 will be resolved into LiF and PF 5 , as indicated in equation (1). [ 87 ] LiF will increase the cathode impedance and the PF 5 will tend to react with the H 2 O to generate HF as indicated in equation (2).…”

Section: Failure Mechanismsmentioning

confidence: 99%

“…investigated the decomposition reactions of the LP57 electrolyte (1 M LiPF 6 dissolved in Ethylene Carbonate (EC) and Ethyl Methyl Carbonate (EMC) (3 : 7 by volume) as electrolyte) and the gas evolution occurring upon cycling of Graphite/ NCM811 cells at high cutoff voltage. [ 85 ] An increase in O 2 , H 2 , and CO 2 evolution was found when cycling to a higher cutoff potential (4.6 V) (Figures 5a, b), which would reduce the safety of the battery. Besides, an increase of dimethyl carbonate (DMC) and diethyl carbonate (DEC), which were formed by the transesterification reaction of EMC and oligo‐carbonates which were formed from the transesterification of EC, had also been observed upon cycling at a higher voltage (Figures 5c, d).…”

Section: Failure Mechanismsmentioning

confidence: 99%

High‐Voltage Layered Ternary Oxide Cathode Materials: Failure Mechanisms and Modification Methods^†

et al. 2020

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Due to the large reversible capacity, high operating voltage and low cost, layered ternary oxide cathode materials LiNixCoyAl1−x−yO2 (NCA) and LiNixCoyMn1−x−yO2 (NCM) are considered as the most potential candidate materials for lithium-ion batteries (LIBs) used in (hybrid) electric vehicles (EVs). However, next-generation long-range EVs require a high specific capacity (around 203 mAh•g-1 at 3.7V) at the cathode active material level, which is not provided with current commercially layered ternary oxide cathodes. Increasing the operating voltage is an effective method to improve the specific capacity of the cathode and the energy density of the battery, but the high operating voltage also causes a lot of problems, such as cation mixing and phase transformation, electrolyte decomposition, transition metal dissolution and microcracks. So far, researchers have carried out a lot of works to solve these issues. Surface coating, element doping and the design of electrolytes have been proved to be effective solutions. In this review, the failure mechanisms and modification methods of high-voltage layered ternary oxide cathode materials are summarized, which could provide valuable information to the research of high-voltage layered ternary oxide cathode materials in basic science and industrial production. Xiaodan Wang (top left) was born in Hebei province, China in 1996. She received her bachelor degree from Hebei University of Technology in 2018. She is currently studying for her master's degree under the guidance of Professor Bai in School of Materials Science at Beijing Institute of Technology. Ying Bai (top right) is currently a professor at Beijing Institute of Technology (BIT). Her research interests focus on electrochemical energy storage and conversion technology. Dr. Bai earned her bachelor degree from Applied Chemistry Division at Harbin Institute of Technology, China (HIT) in 1997. She completed her Ph.D. from School of Chemical Engineering & Materials Science at BIT in 2003. In 2013, she was awarded New Century Excellent Talents in University from the Chinese Ministry of Education. She hosted and is hosting the projects of the National Natural Science Foundation of China as a principal investigator. Dr. Bai has authored/co-authored more than 120 peer-reviewed articles and filed more than 40 Chinese patents. Xinran Wang (bottom left) is an associate researcher at Beijing Institute of Technology (BIT). His research interests focus on new system for high energy density secondary batteries. In 2016, he received his Ph.D. degree in University of Chinese Academy of Sciences. From 2013 to 2015, he was jointly trained by Georgia Institute of Technology in the United States. From 2016 to 2018, he worked as an assistant researcher at the Institute of Process Engineering, Chinese Academy of Sciences. He has won the Baosteel Award, the President's Award of the Chinese Academy of Sciences, the Chinese Academy of Sciences Outstanding pacesetter and so on. Chuan Wu (bottom right) is a professor at Beijing Institute of Tech...

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Understanding of performance degradation of LiNi0.80Co0.10Mn0.10O2 cathode material operating at high potentials

Cited by 174 publications

References 61 publications

Degradation and Aging Routes of Ni-Rich Cathode Based Li-Ion Batteries

Degradation and Aging Routes of Ni-Rich Cathode Based Li-Ion Batteries

Effect of high Ni on battery thermal safety

High‐Voltage Layered Ternary Oxide Cathode Materials: Failure Mechanisms and Modification Methods^†

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Understanding of performance degradation of LiNi0.80Co0.10Mn0.10O2 cathode material operating at high potentials

Cited by 174 publications

References 61 publications

Degradation and Aging Routes of Ni-Rich Cathode Based Li-Ion Batteries

Degradation and Aging Routes of Ni-Rich Cathode Based Li-Ion Batteries

Effect of high Ni on battery thermal safety

High‐Voltage Layered Ternary Oxide Cathode Materials: Failure Mechanisms and Modification Methods†

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Product

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High‐Voltage Layered Ternary Oxide Cathode Materials: Failure Mechanisms and Modification Methods^†