High-energy, long-life Ni-rich cathode materials with columnar structures for all-solid-state batteries

Nam Yung Park; Han Uk Lee; Tae Yeon Yu; In Su Lee; Hun Kim; Sung Min Park; Hun Gi Jung; Yun Chae Jung; Yang Kook Sun

doi:10.1038/s41560-025-01726-8

High-energy, long-life Ni-rich cathode materials with columnar structures for all-solid-state batteries

Nam Yung Park
, Han Uk Lee
, Tae Yeon Yu
, In Su Lee
, Hun Kim
, Sung Min Park
, Hun Gi Jung
, Yun Chae Jung
, Yang Kook Sun^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

140 Scopus citations

Abstract

All-solid-state batteries (ASSBs) comprising Ni-rich layered cathode active materials (CAMs) and sulfide solid electrolytes are promising candidates for next-generation batteries with high energy densities and safety. However, severe capacity fading occurs due to surface degradation at the CAM–electrolyte interface and severe lattice volume changes in the CAM, resulting in inner-particle isolation and detachment of the CAM from the electrolyte. Here we quantified the capacity fading factors of Ni-rich Li[Ni_xCo_yAl₁₋_x−y]O₂ composite ASSB cathodes as functions of Ni content. Surface degradation at the CAM–electrolyte interface was found to be the main cause of capacity fading in a CAM with 80% Ni content, whereas inner-particle isolation and detachment of the CAM from the electrolyte play a substantial role as the Ni content increases to 85% or more. On the basis of the comprehensive understanding of these mechanisms in ASSBs, high-performance Ni-rich CAMs with columnar structures were developed through surface and morphology modification.

Original language	English
Article number	2261
Pages (from-to)	479-489
Number of pages	11
Journal	Nature Energy
Volume	10
Issue number	4
DOIs	https://doi.org/10.1038/s41560-025-01726-8
State	Published - Apr 2025
Externally published	Yes

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive licence to Springer Nature Limited 2025.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology

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10.1038/s41560-025-01726-8

Cite this

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title = "High-energy, long-life Ni-rich cathode materials with columnar structures for all-solid-state batteries",

abstract = "All-solid-state batteries (ASSBs) comprising Ni-rich layered cathode active materials (CAMs) and sulfide solid electrolytes are promising candidates for next-generation batteries with high energy densities and safety. However, severe capacity fading occurs due to surface degradation at the CAM{\textendash}electrolyte interface and severe lattice volume changes in the CAM, resulting in inner-particle isolation and detachment of the CAM from the electrolyte. Here we quantified the capacity fading factors of Ni-rich Li[NixCoyAl1−x−y]O2 composite ASSB cathodes as functions of Ni content. Surface degradation at the CAM{\textendash}electrolyte interface was found to be the main cause of capacity fading in a CAM with 80\% Ni content, whereas inner-particle isolation and detachment of the CAM from the electrolyte play a substantial role as the Ni content increases to 85\% or more. On the basis of the comprehensive understanding of these mechanisms in ASSBs, high-performance Ni-rich CAMs with columnar structures were developed through surface and morphology modification.",

author = "Park, \{Nam Yung\} and Lee, \{Han Uk\} and Yu, \{Tae Yeon\} and Lee, \{In Su\} and Hun Kim and Park, \{Sung Min\} and Jung, \{Hun Gi\} and Jung, \{Yun Chae\} and Sun, \{Yang Kook\}",

note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive licence to Springer Nature Limited 2025.",

year = "2025",

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doi = "10.1038/s41560-025-01726-8",

language = "English",

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T1 - High-energy, long-life Ni-rich cathode materials with columnar structures for all-solid-state batteries

AU - Park, Nam Yung

AU - Lee, Han Uk

AU - Yu, Tae Yeon

AU - Lee, In Su

AU - Kim, Hun

AU - Park, Sung Min

AU - Jung, Hun Gi

AU - Jung, Yun Chae

AU - Sun, Yang Kook

PY - 2025/4

Y1 - 2025/4

N2 - All-solid-state batteries (ASSBs) comprising Ni-rich layered cathode active materials (CAMs) and sulfide solid electrolytes are promising candidates for next-generation batteries with high energy densities and safety. However, severe capacity fading occurs due to surface degradation at the CAM–electrolyte interface and severe lattice volume changes in the CAM, resulting in inner-particle isolation and detachment of the CAM from the electrolyte. Here we quantified the capacity fading factors of Ni-rich Li[NixCoyAl1−x−y]O2 composite ASSB cathodes as functions of Ni content. Surface degradation at the CAM–electrolyte interface was found to be the main cause of capacity fading in a CAM with 80% Ni content, whereas inner-particle isolation and detachment of the CAM from the electrolyte play a substantial role as the Ni content increases to 85% or more. On the basis of the comprehensive understanding of these mechanisms in ASSBs, high-performance Ni-rich CAMs with columnar structures were developed through surface and morphology modification.

AB - All-solid-state batteries (ASSBs) comprising Ni-rich layered cathode active materials (CAMs) and sulfide solid electrolytes are promising candidates for next-generation batteries with high energy densities and safety. However, severe capacity fading occurs due to surface degradation at the CAM–electrolyte interface and severe lattice volume changes in the CAM, resulting in inner-particle isolation and detachment of the CAM from the electrolyte. Here we quantified the capacity fading factors of Ni-rich Li[NixCoyAl1−x−y]O2 composite ASSB cathodes as functions of Ni content. Surface degradation at the CAM–electrolyte interface was found to be the main cause of capacity fading in a CAM with 80% Ni content, whereas inner-particle isolation and detachment of the CAM from the electrolyte play a substantial role as the Ni content increases to 85% or more. On the basis of the comprehensive understanding of these mechanisms in ASSBs, high-performance Ni-rich CAMs with columnar structures were developed through surface and morphology modification.

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JO - Nature Energy

JF - Nature Energy

IS - 4

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ER -

High-energy, long-life Ni-rich cathode materials with columnar structures for all-solid-state batteries

Abstract

Bibliographical note

UN SDGs

ASJC Scopus subject areas

Access to Document

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