Results 51 to 60 of about 2,288,779 (293)

Superexchange interaction regulates Ni/Mn spin states triggering Ni-t2g/O-2p reductive coupling enabling stable lithium-rich cathode

Nature Communications
Lithium-rich layer oxides are expected to be high-capacity cathodes for next-generation lithium-ion batteries, but their performance is hindered by irreversible anionic redox, leading to voltage decay, lag, and slow kinetics.
Chaoliang Zheng, Yaqing Wang, Huican Mao, Juan Zhang, Xiaoxu Yang, Jie Li, Di Zhang, Xindong Wang, Feiyu Kang, Jianling Li   +9 more
doaj   +1 more source

Investigation on the Origin of Sluggish Anionic Redox Kinetics in Cation-Disordered Cathode

Energies, 2023
Cation-disordered rock salt (DRX) cathodes exhibit high specific capacity due to the simultaneous use of anionic and cationic redox reactions. However, DRX systems face severe challenges that limit their practical applications; a most important challenge
Qi Liang, Peirong Li, Yue Zhao, Supeng Chen, Jixiang Yin, Yingchun Lyu, Qiang Li, Qinghao Li   +7 more
doaj   +1 more source

Elucidating local diffusion dynamics in nickel-rich layered oxide cathodes [PDF]

, 2023
Elucidating Li-ion transport properties is essential for designing suitable methodologies to optimise electrochemical performance in Ni-rich cathodes for high energy density Li-ion batteries.
Beth I. J. Johnston, Baker, P.J., Serena A. Cussen, Johnston, B.I.J., McClelland, I., Cussen, S.A., Innes McClelland, Peter J. Baker   +7 more
core   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

New insights into the pre-lithiation kinetics of single-crystalline Ni-rich cathodes for long-life Li-ion batteries

Green Energy & Environment
Developing single-crystalline Ni-rich cathodes is an effective strategy to improve the safety and cycle life of Li-ion batteries (LIBs). However, the easy-to-loss of Li and O in high-temperature lithiation results in unsatisfactory ordered layered ...
Qiang Han, Lele Cai, Zhaofeng Yang, Yanjie Hu, Hao Jiang, Chunzhong Li   +5 more
doaj   +1 more source

Air-Induced Degradation and Electrochemical Regeneration for the Performance of Layered Ni-Rich Cathodes

, 2019
Nickel-rich layered oxides are promising cathodes for power batteries owing to their high capacity and low cost. However, during the production, storage, and application of nickel-rich cathodes, especially in case the Ni content exceeds 70%, their ...
Chunxian Zhou, Zhongchang Wang, Xiaoming Xi, Lishan Yang (1410463), Li Shao (151875), Zhongchang Wang (1511161), Haihong Zhao, Chunhui Wang (141889), Xiaoming Xi (7878116), Chunhui Wang, Xin Guo, Chenghuan Huang (7878119), Chunxian Zhou (5480771), Chenghuan Huang, Li Shao, Dulin Yin (1541059), Lishan Yang, Dulin Yin, Xin Guo (123593), Haihong Zhao (5447585)   +19 more
core   +1 more source

Spatially Regulated Lithium Plating via Li2O‐Rich Interphase Enables Durable Fast‐Charging Hybrid Lithium Batteries

Advanced Functional Materials, EarlyView.
A Li2O‐rich solid electrolyte interphase (SEI) is engineered on graphite through a propylene carbonate‐based electrolyte to spatially regulate Li plating. The homogeneous interphase lowers Li nucleation barriers, promotes conformal Li deposition around graphite particles, and suppresses dendritic accumulation, enabling durable hybrid Li‐ion/Li‐metal ...
Robert Kuphal, Jingjing Liu, Junxiang Liu, Tao Ma, Yi Ding, Mahmood Haq, Satish Udpa, Stephen J. Harris, Chengcheng Fang   +8 more
wiley   +1 more source

Engineering of entropy-driven surface doping towards stabilized high-voltage NCM cathodes: Li (Ni, Co, Mn, Ce, La, Zr, Al) Ox

Materials Reports: Energy
Ni-rich LiNi0.8Mn0.1Co0.1O2 (NCM) cathodes in layered oxide cathodes are attractive for high-energy lithium-ion batteries but suffer from rapid capacity fade and thermal instability at high charge voltages.
Leqi Zhao, Zezhou Lin, Yijun Zhong, Hanwen Liu, Xiao Sun, Yu-Cheng Huang, William D.A. Rickard, Tony Tang, Zongping Shao   +8 more
doaj   +1 more source

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

Advanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon, Sangbin Park, Jaewoo Jung, Seongeun Lee, Chanwoo Jung, Min‐Sik Park, Won‐Sub Yoon   +6 more
wiley   +1 more source

Lithium stoichiometry engineering for fast-charging NMC811 cathodes [PDF]

Materials Advances
Ni-rich LiNi0.8Mn0.1Co0.1O2 (NMC811) cathodes are promising candidates for next-generation high-energy lithium-ion batteries; however, their practical application under fast-charging conditions is severely hindered by cation disorder, sluggish Li ...
Zahra Bahmaei, Zeinab Sanaee, Parisa Vahdatkhah   +2 more
doaj   +1 more source