In Situ/Operando Spectroscopic Techniques for Nonaqueous Lithium-Based Batteries

The Journal of Physical Chemistry C, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 25, 2024

Nonaqueous lithium-based batteries have become a dominating stream of modern energy storage systems. Understanding the physicochemical processes and mechanisms electrode evolution interfacial reactions in lithium is highly desired to further improve their capabilities. Compared with ex situ testing techniques, situ/operando spectroscopic techniques are significant importance battery research because they can provide more dynamic transient information under working conditions. Herein, this review we systematically introduce various for development nonaqueous Li batteries, including infrared (IR) spectroscopy, Raman scattering (Raman) nuclear magnetic resonance (NMR) sum frequency generation vibrational spectroscopy (SFG-VS) X-ray absorption (XAS). The recent advances these especially applications studying materials electrode–electrolyte interphases, been comprehensively summarized. Finally, propose future potential research.

Язык: Английский

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Deciphering the Interfacial Li-Ion Migration Kinetics of Ni-Rich Cathodes in Sulfide-Based All-Solid-State Batteries

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер unknown

Опубликована: Дек. 18, 2024

Nickel-rich layered oxide with high reversible capacity and working potentials is a prevailing cathode for high-energy-density all-solid-state lithium batteries (ASSLBs). However, compared to the liquid battery system, ASSLBs suffer from poor Li-ion migration kinetics, severe side reactions, undesired formation of space charge layers, which result in restricted release limited rate capability. In this work, we reveal that loss lies H2-H3 phase transition period, propose inconsistent interfacial arch-criminal. We introduce Si doping stabilize bulk structure Li

Язык: Английский

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Ball-in-Ball SnO2/SnS@Void@C as Anode for Enhanced Electrochemical Performances of Li/Na Ion Batteries

New Journal of Chemistry, Год журнала: 2025, Номер 49(6), С. 2250 - 2259

Опубликована: Янв. 1, 2025

Ball-in-ball SnO 2 /SnS@Void@C can provide more active sites, shorten the ion diffusion distance, and alleviate volume expansion. used as anodes in LIBs/SBIs display excellent electrochemical performance.

Язык: Английский

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V-Doping-Mediated Li₃VO₄ Modification to Enhance the Cycling Stability of Li_1.2Mn_0.6Ni_0.2O₂

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Lithium-rich manganese layered (LMR) materials, utilizing the characteristics of both cation and anion redox, are promising cathodes for high-energy-density lithium-ion batteries. However, capacity fading voltage decay pose challenges to their commercial applications. In this work, we employ chemical bonding integrate Li3VO4 with Li1.2Mn0.6Ni0.2O2, leveraging compatible properties form a stable interface address related challenges. An epitaxially grown coating on Li1.2Mn0.6Ni0.2O2 crystals enhances stability at electrode–electrolyte while also improving conduction. Additionally, strong metal–oxygen bonds between high-valence V element effectively lower surface oxygen activity, further preventing release irreversible phase transitions. assembled half-cell tests, 3 wt % Li3VO4-coated exhibits excellent electrochemical performance. After 150 cycles 200 mA g–1, discharge specific reaches 188 h retention rate as high 93%. Even under current density 1000 remains 128 g–1 after cycles. This study highlights significant impact bonded lattice-matching presenting viable design strategy developing high-performance LMR cathodes.

Язык: Английский

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Basicity regulation of Ni-rich layered oxide cathodes for all-solid-state Li-ion batteries

Journal of Energy Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

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