journal article·2025-07-11

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

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

ACS Energy Letters· Volume 10· Issue 7
Publisher page

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 0.8 Co 0.1 Mn 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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Research context

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Technologies Research · Extraction and Separation Processes

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry and Institute for Future Earth

Pusan National University

Department of Physics

University of Illinois Chicago

Department of Materials Science and Engineering

Kyung Hee University

Department of Chemistry

Applied Materials Division

Argonne National Laboratory

National Synchrotron Light Source II

Brookhaven National Laboratory

Advanced Batteries Research Center

Korea Electronics Technology Institute

Graduate School of Convergence Technology and Energy

Tech University of Korea

Chemical Sciences and Engineering Division

Materials Science Division

Funding

Army Research Office · Basic Energy Sciences · National Research Foundation of Korea · Brookhaven National Laboratory · Northwestern University · National Science Foundation · University of Illinois at Chicago

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