Haijun Yu

Synergistic bulk-gradient and surface-dual-doping design for Co-free Li-rich cathodes

Yuqiang Li, Boya Wang, Tian Wang, Yinzhong Wang et autres

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Terminally Fluorinated Polyimide Interphase for Durable Lithium‐Rich Layered Oxide Cathodes

Chenghan Li, Juan Wang, Pei Zou, Haozhe Du et autres

ABSTRACT Lithium‐rich layered oxides (LLOs) deliver high energy density via coupled cationic/anionic redox, but high‐voltage oxygen activation generates radical‐rich interfaces that accelerate electrolyte decomposition, surface reconstruction, and mechanical failure. Although polyimide serves as an oxidation‐resistant interphase on LLO cathodes, its durability is …

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Terminally Fluorinated Polyimide Interphase for Durable Lithium‐Rich Layered Oxide Cathodes

Chenghan Li, Juan Wang, Pei Zou, Haozhe Du et autres

ABSTRACT Lithium‐rich layered oxides (LLOs) deliver high energy density via coupled cationic/anionic redox, but high‐voltage oxygen activation generates radical‐rich interfaces that accelerate electrolyte decomposition, surface reconstruction, and mechanical failure. Although polyimide serves as an oxidation‐resistant interphase on LLO cathodes, its durability is …

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Interrupting Surface‐to‐Bulk Domino Propagation: A Thermal Failure Mitigation Strategy for Layered Oxide Cathodes

Yulong Wang, Shiqi Liu, Jingru Huang, Haozhe Du et autres

ABSTRACT Layered transition‐metal oxide cathodes are pivotal for lithium‐ion batteries (LIBs)‐powered energy‐storage systems. However, the relentless pursuit of high performance is severely bottlenecked by intrinsic thermal safety concerns, where structural degradation and interfacial instability can trigger catastrophic thermal runaway. Herein, a thermally …

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Prospects of high energy Ni-based lithium-rich layered oxides

Xiaoqiu Liu, Haitang Zhang, Xianwei Guo, Guoqing Wang et autres

With the rapid development of electric transportation and energy storage fields, secondary battery devices with high-energy-density and long-term cycling life are urgently required to meet current market demands. Ni-based layered oxides (LiNi x M y O 2 , x ≥ y, M …

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Accelerating reaction kinetics of AlCl 3 /acetamide electrolyte by co-solvation for Al–S batteries

Zhigang Jiang, Runke Zhang, Zuobei Jiang, Shanshan Zeng et autres

/AcA further improves the S utilization, reduces the polarization, and enhances the capacity retention of Al-S batteries. This study provides important insights into the design of high-performance electrolytes toward practical Al-S batteries.

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Cathode lithium-rich compensators for next-generation lithium-ion batteries

Fangzheng Liu, Lin Wang, Shu Zhao, Meixin Liu et autres

Active lithium loss during initial cycling and long-term operation is a key factor limiting the energy density and cycling life of lithium-ion batteries (LIBs). Among various prelithiation approaches developed to address this challenge, cathode lithium-rich compensators (LRCs) have garnered widespread attention due …

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High-pressure enabled rapid fabrication of Ag-doped MnTe with exceptional phonon suppression

Manman Yang, Enhui Yang, Haijun Yu, Huimin Fan et autres

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Beyond Li-O-Li configuration in oxygen anionic redox

Shiqi Liu, Xu Zhang, Haijun Yu

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Gradient design for lithium-ion batteries: from particle to cathode

Yuqiang Li, Xu Zhang, Shiqi Liu, Yinzhong Wang et autres

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Ethanol Molecule Engineering Toward Stabilized 1T-MoS2 with Extraordinary Sodium Storage Performance

X. J. Bi, Xuelian Wang, Xiaobo Shen, Haijun Yu et autres

Phase molybdenum disulfide (1T-MoS2) holds significant promise as an anode material for sodium-ion batteries (SIBs) due to its metallic conductivity and expanded interlayer distance. However, the practical application of 1T-MoS2 is hindered by its inherent thermodynamic metastability, which poses substantial challenges for …

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Time-dependent solid-state phase transition enables efficient latent heat storage in Ni1-Fe S

Xuelian Wang, Jin Bai, Xian Zhang, Xiaobo Shen et autres

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