High-Nickel Cathodes with Mechanical and Interfacial Robustness via Tailored Concentration Gradients for Stable Li-Ion Batteries

IF 18.2 1区材料科学 Q1 CHEMISTRY, PHYSICAL

ACS Energy Letters Pub Date : 2025-06-30 DOI:10.1021/acsenergylett.5c01634

Seongwook Kim, Arashdeep S. Thind, Sangram Keshari Mohanty, Jeong Ki Hong, Jae Yup Jung, Haeun Park, Yingjie Yang, Min-Sik Park, Mansi Sanjay Porwal, Eva Allen, Byeong Kil Choi, Hyein Jung, Neelam Sunariwal, Khagesh Kumar, Mingyuan Ge, Jaeseung Yoo, Jun-Ho Song, Ji Heon Ryu, Seyun Lee, Sri Charan Reddy, Madhusudana Koratikere Srinivasa, Aditya Ranjan Pati, Eungje Lee, Robert F. Klie, Jordi Cabana, Hyun Deog Yoo

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Abstract

We have developed a versatile mathematical framework integrated with an automated reactor system to design and reify highly customizable full concentration gradient (FCG) in high-nickel cathodes for advanced Li-ion batteries. This method provides precise and independent control of the average composition, slope, and curvature of FCGs, enabling the optimization of structural and mechanical properties of the cathode materials. We have showcased this method with Ni_0.8Co_0.1Mn_0.1(OH)₂ precursors of controlled FCGs, which unlocked an optimized cathode with excellent cycling stability without crack formation after repeated cycles. This work opens up new possibilities for the design and manufacturing of advanced cathode materials, enabling safer, high-performance batteries.

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高镍阴极的机械和界面稳健性通过定制浓度梯度稳定锂离子电池

我们开发了一个通用的数学框架，集成了一个自动化的反应堆系统，用于设计和实现高镍阴极的高度可定制的全浓度梯度（FCG），用于先进的锂离子电池。该方法可以精确、独立地控制FCGs的平均成分、斜率和曲率，从而优化阴极材料的结构和力学性能。我们已经用Ni0.8Co0.1Mn0.1(OH)2前驱体的控制FCGs展示了这种方法，该方法解锁了一个优化的阴极，具有优异的循环稳定性，在重复循环后不会产生裂纹。这项工作为设计和制造先进的阴极材料开辟了新的可能性，使更安全、高性能的电池成为可能。

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

ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment

CiteScore

31.20

自引率

5.00%

发文量

469

审稿时长

1 months

期刊介绍： ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.