Noninvasive rejuvenation strategy of nickel-rich layered positive electrode for Li-ion battery through magneto-electrochemical synergistic activation
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 ca...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-54641-z |
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| _version_ | 1832594607231205376 |
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| author | 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 Jie Sun |
| author_facet | 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 Jie Sun |
| author_sort | Haochen Gong |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-286e559231ab447ea19d14259c1315ab |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-286e559231ab447ea19d14259c1315ab2025-01-19T12:29:37ZengNature PortfolioNature Communications2041-17232024-11-0115111110.1038/s41467-024-54641-zNoninvasive rejuvenation strategy of nickel-rich layered positive electrode for Li-ion battery through magneto-electrochemical synergistic activationHaochen Gong0Yu Cao1Baoshan Zhang2Jinsong Zhang3Yiming Zhang4Huili Wang5Shaojie Zhang6Xiaoyi Wang7Yue Mao8Shuo Liu9Chengyu Han10Qianxin Xiang11Chaoyi Zhou12Jie Sun13School of Chemical Engineering and Technology, Tianjin UniversitySchool of Chemical Engineering and Technology, Tianjin UniversityQuzhou Institute for Innovation in Resource Chemical EngineeringState Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua UniversitySchool of Chemical Engineering and Technology, Tianjin UniversitySchool of Chemical Engineering and Technology, Tianjin UniversitySchool of Chemical Engineering and Technology, Tianjin UniversitySchool of Chemical Engineering and Technology, Tianjin UniversitySchool of Chemical Engineering and Technology, Tianjin UniversitySchool of Chemical Engineering and Technology, Tianjin UniversitySchool of Chemical Engineering and Technology, Tianjin UniversityGuizhou Zhenhua E-Chem Co., LtdGuizhou Zhenhua E-Chem Co., LtdSchool of Chemical Engineering and Technology, Tianjin UniversityAbstract 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.https://doi.org/10.1038/s41467-024-54641-z |
| spellingShingle | 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 Jie Sun Noninvasive rejuvenation strategy of nickel-rich layered positive electrode for Li-ion battery through magneto-electrochemical synergistic activation Nature Communications |
| title | Noninvasive rejuvenation strategy of nickel-rich layered positive electrode for Li-ion battery through magneto-electrochemical synergistic activation |
| title_full | Noninvasive rejuvenation strategy of nickel-rich layered positive electrode for Li-ion battery through magneto-electrochemical synergistic activation |
| title_fullStr | Noninvasive rejuvenation strategy of nickel-rich layered positive electrode for Li-ion battery through magneto-electrochemical synergistic activation |
| title_full_unstemmed | Noninvasive rejuvenation strategy of nickel-rich layered positive electrode for Li-ion battery through magneto-electrochemical synergistic activation |
| title_short | Noninvasive rejuvenation strategy of nickel-rich layered positive electrode for Li-ion battery through magneto-electrochemical synergistic activation |
| title_sort | noninvasive rejuvenation strategy of nickel rich layered positive electrode for li ion battery through magneto electrochemical synergistic activation |
| url | https://doi.org/10.1038/s41467-024-54641-z |
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