Insight of Synthesis of Single Crystal Ni‐Rich LiNi1−x−yCoxMnyO2 Cathodes

Wu, Yingqiang; Wu, Hanfeng; Deng, Jiushuai; Han, Zhiding; Xiao, Xiang; Wang, Li; Chen, Zonghai; Deng, Yida; He, Xiangming

doi:10.1002/aenm.202303758

Cited by 13 publications

(1 citation statement)

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“…Tremendous efforts have been made to examine the impact of key parameters on the synthesis of layered cathode materials by varying precursor types, stoichiometry, temperature, atmosphere, procedures (such as heating and cooling rates, and aging time), and dopants. , In situ high-temperature XRD (HT-XRD) studies of layered cathode materials during calcination or sintering have primarily focused on characterizing solid-state reaction mechanisms, encompassing heating, aging, and cooling. , The overall synthesis process can be divided into four stages based on temperature: Stage I is from room temperature (RT) to 500 °C, Stage II is above 500 °C, Stage III is aging at the reaction temperature, and Stage IV is cooling (Scheme ). In Stage I, the Li and TM precursors decompose and react with each other, forming partially lithiated intermediate phases.…”

Section: Atomic-scale Characterization Of Layered Cathode Materials U...mentioning

confidence: 99%

Unveiling the Future of Li-Ion Batteries: Real-Time Insights into the Synthesis of Advanced Layered Cathode Materials

Lee,

Kim,

Jeong

2024

ACS Energy Lett.

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Figure 1. (a) The weight fraction of the precursor mixture for the synthesis of LiNi 0.6 Co 0.2 Mn 0.2 O 2 obtained from Rietveld refinement of in situ HT-XRD data. Reproduced with permission from ref 19 Copyright 2021 John Wiley and Sons. (b) The c/a ratio in the intermediate structures of Li x (Co 0.2 Ni 0.8 ) 1−x O 2 and Li x Ni 2−x O 2 . Reproduced with permission from ref 20 Copyright 2020 American Chemical Society. (c) Ni−O and Li−O bond length changes during synthesis for LiNi 0.8 Co 0.2 O 2 under O 2 flow. Reproduced with permission from ref 27 Copyright 2017 John Wiley and Sons. (d) In situ PDF patterns during the synthesis of LiNi 0.77 Mn 0.13 Co 0.1 O 2 . Reproduced with permission from ref 28 Copyright 2018 American Chemical Society. (e) Li SOFs as a function of temperature upon heating of LiNi x Mn 1−x O 2 (x = 0, 0.9, 0.75). Reproduced with permission from ref 21 Copyright 2023 IUCR Journals. (f) Domain sizes derived from Rietveld refinement of in situ HT-XRD patterns during the synthesis of NCM811. Reproduced with permission from ref 24

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Section: Atomic-scale Characterization Of Layered Cathode Materials U...mentioning

confidence: 99%

Unveiling the Future of Li-Ion Batteries: Real-Time Insights into the Synthesis of Advanced Layered Cathode Materials

Lee,

Kim,

Jeong

2024

ACS Energy Lett.

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Functionalized Binders Boost High‐Capacity Anode Materials

Dong,

Wang,

Huang

et al. 2024

Adv Funct Materials

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The burgeoning field of energy storage battery innovation has sparked a relentless pursuit of high‐capacity anode materials to meet the escalating demand for improved energy density. Typically, these materials for batteries experience significant volume changes during cycles, which severely test the structural integrity and lifespan of electrode configurations. High‐performance binders have emerged as a critical component in addressing this challenge. Although they represent a small proportion of the battery's composition, binders play a pivotal role in enhancing electrochemical efficiency, safety, and cost‐effectiveness of batteries. The advancement of high‐capacity anode materials has rendered traditional binders inadequate, prompting the development of functional binders that are increasingly being refined to meet these requirements. This article began by outlining the role and requirements of binders within electrodes, examining cutting‐edge characterization methodologies, and discussing the “structure‐function” paradigm that underpins binder selection. It then showcased the research advancements in identifying suitable binders for high‐capacity anode materials, including silicon (Si), phosphorus (P), tin (Sn), antimony (Sb), and germanium (Ge). In summary, the article contemplated the future direction of binder development and application in high‐capacity electrode materials. The aim is to facilitate the progression of high‐performance, high‐capacity anodes, thereby accelerating the development of high‐energy‐density lithium‐ion and sodium‐ion batteries.

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Lithium Bis(Trifluoromethanesulfonyl)Imide (LiTFSI): A Prominent Lithium Salt in Lithium‐Ion Battery Electrolytes – Fundamentals, Progress, and Future Perspectives

Li,

Wang,

Huang

et al. 2024

Adv Funct Materials

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Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) is a widely used lithium (Li) salt that is extensively studied in the field of electrolytes for Li‐ion batteries (LIBs) to improve their performance. A thorough understanding of its underlying mechanisms in LIBs is crucial for gaining deeper insights into its future development. This paper provides an extensive review of the role of LiTFSI in enhancing battery performance, including its benefits for negative electrode protection, the facilitation of fast charging capabilities, and the promotion of battery operation across a wide temperature range. It also highlights the specific drawbacks of LiTFSI in the electrolyte domain and examines potential solutions. By leveraging the unique properties of LiTFSI, the strategies for its effective utilization in current research are outlined. Finally, the paper discusses the lack of research into the mechanism of LiTFSI in interface protection, particularly the evolution mechanisms of multi‐component Li salts at the positive and negative electrode interfaces, and it reasonably anticipates the potential applications of LiTFSI in the realm of non‐liquid batteries. This study not only provides a more comprehensive and profound understanding of LiTFSI but also aids in the exploration of novel electrolyte systems.

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Insight of Synthesis of Single Crystal Ni‐Rich LiNi_1−x−yCo_xMn_yO₂ Cathodes

Cited by 13 publications

References 310 publications

Unveiling the Future of Li-Ion Batteries: Real-Time Insights into the Synthesis of Advanced Layered Cathode Materials

Unveiling the Future of Li-Ion Batteries: Real-Time Insights into the Synthesis of Advanced Layered Cathode Materials

Functionalized Binders Boost High‐Capacity Anode Materials

Lithium Bis(Trifluoromethanesulfonyl)Imide (LiTFSI): A Prominent Lithium Salt in Lithium‐Ion Battery Electrolytes – Fundamentals, Progress, and Future Perspectives

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