Surfactant-Assisted Synthesis of High Energy {010} Facets Beneficial to Li-Ion Transport Kinetics with Layered LiNi0.6Co0.2Mn0.2O2

Ju, Xiaokang; Huang, Hui; He, Wei; Zheng, Hongfei; Pan, Deng; Li, Shengyang; Qu, Baihua; Wang, Taihong

doi:10.1021/acssuschemeng.8b00126

Cited by 36 publications

(31 citation statements)

References 43 publications

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“…[ 128 ] For example, Wang and co‐workers presented a 3D flower‐like hierarchical NCM622 cathode material by making use of a self‐assembling synthesis process, as exemplified in Figure 23d. [ 127 ] TEM measurements confirm that the side‐wall of the primary particle is the active (010) plane, contributing to the faster ionic transport kinetics.…”

Section: Improvement Strategiesmentioning

confidence: 89%

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

Jiang

Danilov

Eichel

et al. 2021

Advanced Energy Materials

237

157

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The growing demand for sustainable energy storage devices requires rechargeable lithium‐ion batteries (LIBs) with higher specific capacity and stricter safety standards. Ni‐rich layered transition metal oxides outperform other cathode materials and have attracted much attention in both academia and industry. Lithium‐ion batteries composed of Ni‐rich layered cathodes and graphite anodes (or Li‐metal anodes) are suitable to meet the energy requirements of the next generation of rechargeable batteries. However, the instability of Ni‐rich cathodes poses serious challenges to large‐scale commercialization. This paper reviews various degradation processes occurring at the cathode, anode, and electrolyte in Ni‐rich cathode‐based LIBs. It highlights the recent achievements in developing new stabilization strategies for the various battery components in future Ni‐rich cathode‐based LIBs.

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Section: Improvement Strategiesmentioning

confidence: 89%

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

Jiang

Danilov

Eichel

et al. 2021

Advanced Energy Materials

237

157

View full text Add to dashboard Cite

show abstract

“…Unfortunately, the surface energy of the {010} facets is higher than that of the {001} facets, which leads to a higher growth rate and eventually the disappearance of the {010} facets in an uncontrolled growth process. In the recent decade, many works have successfully synthesized NMC products with highly exposed {010} facets through using a surface capping agent, adjusting the pH value, and modifying the tank reactor (Wei et al, 2010;Fu et al, 2013;Chen et al, 2014;Hua et al, 2017;Yu et al, 2017;Ju et al, 2018;Su et al, 2018;Zhou et al, 2018;Dong et al, 2019;Xiang et al, 2019). Dramatically increasing the {010} facets generally causes a serious agglomeration, owing to the large surface area.…”

Section: Control Of Facetmentioning

confidence: 99%

Synthesis and Manipulation of Single-Crystalline Lithium Nickel Manganese Cobalt Oxide Cathodes: A Review of Growth Mechanism

et al. 2020

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Lithium nickel manganese cobalt oxide (NMC) cathodes are of great importance for the development of lithium ion batteries with high energy density. Currently, most commercially available NMC products are polycrystalline secondary particles, which are aggregated by anisotropic primary particles. Although the polycrystalline NMC particles have demonstrated large gravimetric capacity and good rate capabilities, the volumetric energy density, cycling stability as well as production adaptability are not satisfactory. Well-dispersed single-crystalline NMC is therefore proposed to be an alternative solution for further development of high-energy-density batteries. Various techniques have been explored to synthesize the single-crystalline NMC product, but the fundamental mechanisms behind these techniques are still fragmented and incoherent. In this manuscript, we start a journey from the fundamental crystal growth theory, compare the crystal growth of NMC among different techniques, and disclose the key factors governing the growth of single-crystalline NMC. We expect that the more generalized growth mechanism drawn from invaluable previous works could enhance the rational design and the synthesis of cathode materials with superior energy density.

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“…[ 65,70 ] While such performance enhancement has been reported even for polycrystalline NCM exposing the appropriate facets, the results from discrete single crystals can be considered more experimentally rigorous as secondary particle effects are eliminated. [ 66a,71 ]…”

Section: Revisiting the Strategies For Layered Oxide Cathodes In Oxygen Redox Point Of Viewmentioning

confidence: 99%

Utilizing Oxygen Redox in Layered Cathode Materials from Multiscale Perspective

Lee

Lau

Yang

et al. 2021

Advanced Energy Materials

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In high‐capacity layered oxide cathode materials, utilization of lattice oxygen as a redox center is considered to be one of the most promising approaches to overcome the capacity limitation set by conventional transition metal redox centers. However, rapid material degradation is often associated with oxygen oxidation, leading to formidable challenges in utilizing oxygen redox. Further mechanistic understanding of the oxygen activities thus becomes critical to better control oxygen redox reactions. This review summarizes recent advances for investigating oxygen redox reactions in cathode materials from a multiscale perspective, i.e., from the atomistic level to the microstructure regime. First the mechanistic aspects of oxygen redox and the consequences of this reaction on various electrode degradation pathways during battery operation (e.g., oxygen loss, transition metal migration, irreversible phase transition), relating structural changes at the crystallographic scale to those at the macro scale, are discussed. Then recent developments based on atomic and microstructure modifications that are promising for improving the reversibility of oxygen redox reaction or mitigating the harmful processes arising from oxidation of the oxygen centers under high operating voltage are recounted. The analysis is concluded with a commentary on further research directions toward optimizing the oxygen activity for high‐capacity charge storage.

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Surfactant-Assisted Synthesis of High Energy {010} Facets Beneficial to Li-Ion Transport Kinetics with Layered LiNi_0.6Co_0.2Mn_0.2O₂

Cited by 36 publications

References 43 publications

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

A Review of Degradation Mechanisms and Recent Achievements for Ni‐Rich Cathode‐Based Li‐Ion Batteries

Synthesis and Manipulation of Single-Crystalline Lithium Nickel Manganese Cobalt Oxide Cathodes: A Review of Growth Mechanism

Utilizing Oxygen Redox in Layered Cathode Materials from Multiscale Perspective

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