Single-crystal Ni-rich layered oxide cathodes with LiNbO3-Li3BO3 coating for sulfide all-solid-state batteries

IF 16.8 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy Pub Date : 2025-02-17 DOI:10.1016/j.nanoen.2025.110798

Guoshun Liu , Zhonghao Li , Leiying Zeng , Jianxiong Lin , Baolin Zheng , Huan Liu , Liquan Chen , Fan Wu

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引用次数: 0

Abstract

Sulfide all-solid-state batteries (SASSBs) with ultrahigh-nickel layered oxide cathode (LiNi_xCo_yMn_1-x-yO₂, NCM, x ≥ 0.9) offer the potential of high energy density and safety for superior energy storage systems. However, stable cycling is difficult to realize due to adverse interfacial reactions, space charge layer (SCL), and elemental diffusion. Herein, we use a LiNbO₃-Li₃BO₃ mixed coating of LiNbO₃-Li₃BO₃ on a single-crystal Li[Ni_0.92Co_0.06Mn_0.02]O₂ (SC-Ni92) to enhance interfacial stability between SC-Ni92 cathode and sulfide solid electrolyte. Electrochemical performance shows that SC-Ni92@LiNbO₃-Li₃BO₃/Li₆PS₅Cl/Li-In SASSBs exhibit the best electrochemical performance, including 88.4 % capacity retention at 1.50 mA cm⁻² current density (1 C) for 100 cycles, and a discharge capacity of 150.1 mAh g⁻¹ at 7.49 mA cm⁻² high current density (5 C). The strategies adopted in this study provide valuable insights and guideline for the design of high-energy-density Ni-rich cathode materials for SASSBs.

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含LiNbO3-Li3BO3涂层的硫化物全固态电池单晶富镍层状氧化物阴极

具有超高镍层状氧化物阴极（LiNixCoyMn1-x-yO2， NCM, x≥0.9）的硫化物全固态电池（sassb）为高性能储能系统提供了高能量密度和安全性的潜力。然而，由于不良的界面反应、空间电荷层（SCL）和元素扩散，稳定循环难以实现。本文在单晶Li[Ni0.92Co0.06Mn0.02]O2 （SC-Ni92）表面采用LiNbO3-Li3BO3混合涂层，提高了SC-Ni92阴极与硫化物固体电解质之间的界面稳定性。电化学性能表明，SC-Ni92@LiNbO3-Li3BO3/Li6PS5Cl/Li-In sassb具有最佳的电化学性能，在1.50 mA cm-2电流密度（1 C）下循环100次的容量保持率为88.4%，在7.49 mA cm-2高电流密度（5 C）下的放电容量为150.1 mAh g-1。本研究所采用的策略为sassb高能量密度富镍正极材料的设计提供了有价值的见解和指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano Energy CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

30.30

自引率

7.40%

发文量

1207

审稿时长

23 days

期刊介绍： Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem. Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.