Noninvasive rejuvenation strategy of nickel-rich layered positive electrode for Li-ion battery through magneto-electrochemical synergistic activation

Haochen Gong, Yu Cao, Baoshan Zhang, Jinsong Zhang, Yiming Zhang, Huili Wang, Shaojie Zhang, Xiaoyi Wang, Yue Mao, Shuo Liu, Chengyu Han, Qianxin Xiang, Chaoyi Zhou and Jie Sun ()
Additional contact information
Haochen Gong: Tianjin University
Yu Cao: Tianjin University
Baoshan Zhang: Quzhou Institute for Innovation in Resource Chemical Engineering
Jinsong Zhang: Tsinghua University
Yiming Zhang: Tianjin University
Huili Wang: Tianjin University
Shaojie Zhang: Tianjin University
Xiaoyi Wang: Tianjin University
Yue Mao: Tianjin University
Shuo Liu: Tianjin University
Chengyu Han: Tianjin University
Qianxin Xiang: Guizhou Zhenhua E-Chem Co., Ltd
Chaoyi Zhou: Guizhou Zhenhua E-Chem Co., Ltd
Jie Sun: Tianjin University

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract Nickel-rich layered oxides are one of the most promising positive electrode active materials for high-energy Li-ion batteries. Unfortunately, the practical performance is inevitably circumscribed by the structural deterioration deriving from the Ni/Li antisite disorder, leading to severe capacity loss and life attenuation. Herein, we propose an economical and facile rejuvenation strategy by employing the magneto-electrochemical synergistic activation targeting the positive electrode in assembled Li-ion batteries. This approach induces a transition of Ni3+ from high-spin to low-spin, reducing the super-exchange interaction of Ni-O-transition metal (TM). Meanwhile, electrochemical reaction drives Li+ from the host material and promotes Ni3+ to reoccupy TM layer, recovering intrinsic Li site and extending cycle life. The strategy demonstrates that low-quality positive electrodes can be converted to high-quality ones. Notably, the method can revitalize an aged Li-ion pouch cell (SiC||NCM811, 8 Ah nominal capacity) via optimizing cation occupancy and increase its capacity by 10% from 6.49 to 7.14 Ah at 1 C, illustrating the benefits of the upcycling process.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-54641-z Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-54641-z

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-54641-z

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().