Enhanced specific energy in fast-charging lithium-ion batteries negative electrodes via Ti-O covalency-mediated low potential
Jun Huang,
Qirui Yang,
Anyi Hu,
Zhu Liao,
Zhengxi Zhang,
Qinfeng Zheng,
Zhouhong Ren,
Shun Zheng,
Yixiao Zhang (),
Xiaolong Yang (),
Zhenming Xu,
Le Zhang,
Daming Zhu,
Wen Wen,
Xi Liu,
Akihiro Orita,
Nagahiro Saito,
Liguang Wang,
Yongyao Xia,
Liwei Chen,
Jun Lu () and
Li Yang ()
Additional contact information
Jun Huang: Shanghai Jiao Tong University
Qirui Yang: Shanghai Jiao Tong University
Anyi Hu: Shanghai Jiao Tong University
Zhu Liao: Shanghai Jiao Tong University
Zhengxi Zhang: Shanghai Jiao Tong University
Qinfeng Zheng: Shanghai Jiao Tong University
Zhouhong Ren: Shanghai Jiao Tong University
Shun Zheng: Shanghai Jiao Tong University
Yixiao Zhang: Shanghai Jiao Tong University
Xiaolong Yang: Chongqing University
Zhenming Xu: Nanjing University of Aeronautics and Astronautics
Le Zhang: The University of Texas at Austin
Daming Zhu: Chinese Academy of Sciences
Wen Wen: Chinese Academy of Sciences
Xi Liu: Shanghai Jiao Tong University
Akihiro Orita: Ltd
Nagahiro Saito: Nagoya University
Liguang Wang: Zhejiang University
Yongyao Xia: Nanjing University of Aeronautics and Astronautics
Liwei Chen: Shanghai Jiao Tong University
Jun Lu: Zhejiang University
Li Yang: Shanghai Jiao Tong University
Nature Communications, 2025, vol. 16, issue 1, 1-13
Abstract:
Abstract Developing lithium-ion batteries with high specific energy and fast-charging capability requires overcoming the potential-capacity trade-off in negative electrodes. Conventional fast-charging materials (e.g., Li4Ti5O12, TiNb2O7) operate at high potentials (>1.5 V vs. Li+/Li) to circumvent lithium plating, yet this compromises specific energy. A viable strategy for enhancing the specific energy is to reduce the potential while avoiding the lithium plating risk; however, the underlying mechanisms remain unclear. Here we demonstrate that enhancing Titanium-Oxygen covalency through pseudo-Jahn-Teller Effect distortion in Ruddlesden-Popper perovskites enables low-potential operation. The Li2La2Ti3O10 negative electrode exhibits a working potential of 0.5 V vs. Li+/Li with initial 139.3 mAh g−1 at 5 A g−1 and 72.9% capacity retention after 5000 cycles. Full cells with LiNi0.8Co0.1Mn0.1O2 positive electrodes deliver 3.45 V average discharge voltage-50% higher than conventional Li4Ti5O12 | |LiNi0.8Co0.1Mn0.1O2 systems-achieving 100 mAh g−1 at 4 A g−1. Mechanistic analysis reveals low Li⁺ migration barriers and stable Ruddlesden-Popper perovskite frameworks enable rapid ion transport.
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-61461-2
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DOI: 10.1038/s41467-025-61461-2
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