High-rate Ni-rich single-crystal cathodes with highly exposed {010} active planes through in-situ Zr doping

被引:29
|
作者
Cheng, Lei [1 ]
Zhou, Yanan [2 ]
Zhang, Bao [1 ]
Wang, Wei [1 ]
Ming, Lei [1 ]
Xiao, Zhiming [1 ]
Ou, Xing [1 ]
机构
[1] Cent South Univ, Engn Res Ctr, Sch Met & Environm, Minist Educ Adv Battery Mat, Changsha 410083, Peoples R China
[2] Zhejiang Power New Energy Co Ltd, Zhuji 311899, Peoples R China
基金
中国国家自然科学基金;
关键词
Ultrahigh nickel -rich cathodes; Single; -crystal; Precursors; Rate capability; Exposed {010} planes; CYCLING STABILITY; HIGH-VOLTAGE; LITHIUM; PERFORMANCE; LINI0.6CO0.2MN0.2O2; MECHANISMS; PRECURSORS; COMPOSITE; BATTERY;
D O I
10.1016/j.cej.2022.139336
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Nickel (Ni)-rich cathodes with high energy density will play a crucial role in the rapidly growing electric vehicles sector. However, the large-scale application of Ni-rich cathodes is still limited by structural instability and severe capacity decay. Even though the construction design of single-crystal cathodes alleviates these defects, the sluggish lithium ion (Li+) diffusion between the larger single-crystal particles restricts its rate performance. We propose an in-situ zirconium (Zr) ion doping strategy to modulate the primary particle morphology of precursors and achieve their corresponding single-crystal cathodes with highly exposed {010} planes. The high percentage of {0 1 0} planes will deliver more Li+ diffusion channels and improve the transportation kinetics. Moreover, the homogeneous doping of Zr inside the bulk phase will significantly suppress the anisotropic shrinkage of c-axis and maintain an intact internal structure, thus preventing the accumulation of rock-salt phases. As a result, the Zr-doped single-crystal cathode exhibits excellent cycling stability, whether at 25 degrees C or 45 degrees C. More importantly, the rate performance of cathodes has been remarkably enhanced after Zr modification. At the ultra-high rate of 10 C, it can maintain a high specific capacity of 121.4 mAh g-1 (81.8 % of capacity retention) after 250 cycles in the 3.0-4.3 V range.
引用
收藏
页数:10
相关论文
共 32 条
  • [1] High-rate Ni-rich single-crystal cathodes with highly exposed {0 1 0} active planes through in-situ Zr doping
    Cheng, Lei
    Zhou, Yanan
    Zhang, Bao
    Wang, Wei
    Ming, Lei
    Xiao, Zhiming
    Ou, Xing
    Chemical Engineering Journal, 2023, 452
  • [2] Improving Structure and Electrochemical Performance of Single-Crystal Ni-Rich Cathodes by Aluminium Doping
    Wu F.
    Zhang S.
    Li N.
    Nie Y.
    Chen L.
    Cao D.
    Lu Y.
    Su Y.
    Defect and Diffusion Forum, 2023, 424 : 187 - 192
  • [3] Upcycling of High-Rate Ni-Rich Cathodes through Intrinsic Structural Features
    Zhang, Yaxin
    Yao, Ning
    Tang, Xiaoyu
    Wang, Helin
    Zhang, Min
    Wang, Zhiqiao
    Shao, Ahu
    Liu, Jiacheng
    Cheng, Lu
    Guo, Yuxiang
    Ma, Yue
    ADVANCED ENERGY MATERIALS, 2024, 14 (44)
  • [4] In situ inorganic conductive network formation in high-voltage single-crystal Ni-rich cathodes
    Xinming Fan
    Xing Ou
    Wengao Zhao
    Yun Liu
    Bao Zhang
    Jiafeng Zhang
    Lianfeng Zou
    Lukas Seidl
    Yangzhong Li
    Guorong Hu
    Corsin Battaglia
    Yong Yang
    Nature Communications, 12
  • [5] In situ inorganic conductive network formation in high-voltage single-crystal Ni-rich cathodes
    Fan, Xinming
    Ou, Xing
    Zhao, Wengao
    Liu, Yun
    Zhang, Bao
    Zhang, Jiafeng
    Zou, Lianfeng
    Seidl, Lukas
    Li, Yangzhong
    Hu, Guorong
    Battaglia, Corsin
    Yang, Yong
    NATURE COMMUNICATIONS, 2021, 12 (01)
  • [6] Reducing structural degradation of high-voltage single-crystal Ni-rich cathode through in situ doping strategy
    Fan, Xin-Ming
    Zhang, Zhi
    Mao, Gao-Qiang
    Tong, Ying-Jie
    Lin, Ke-Bo
    Tong, Hui
    Wei, Wei-Feng
    Tian, Qing-Hua
    Guo, Xue-Yi
    RARE METALS, 2023, 42 (09) : 2993 - 3003
  • [7] Reducing structural degradation of high-voltage single-crystal Ni-rich cathode through in situ doping strategy
    Xin-Ming Fan
    Zhi Zhang
    Gao-Qiang Mao
    Ying-Jie Tong
    Ke-Bo Lin
    Hui Tong
    Wei-Feng Wei
    Qing-Hua Tian
    Xue-Yi Guo
    Rare Metals, 2023, 42 : 2993 - 3003
  • [8] Reducing structural degradation of high-voltage single-crystal Ni-rich cathode through in situ doping strategy
    Xin-Ming Fan
    Zhi Zhang
    Gao-Qiang Mao
    Ying-Jie Tong
    Ke-Bo Lin
    Hui Tong
    Wei-Feng Wei
    Qing-Hua Tian
    Xue-Yi Guo
    RareMetals, 2023, 42 (09) : 2993 - 3003
  • [9] In situ co-doping strategy for achieving long-term cycle stability of single-crystal Ni-rich cathodes at high voltage
    Zhang, Zhi
    Hong, Bo
    Yi, Maoyi
    Fan, Xinming
    Zhang, Zhian
    Huang, Xiaobing
    Lai, Yanqing
    CHEMICAL ENGINEERING JOURNAL, 2022, 445
  • [10] Promoting grain growth in Ni-rich single-crystal cathodes for high-performance lithium-ion batteries through Ce doping
    Ryu, Hoon-Hee
    Lee, Soo-Been
    Sun, Yang-Kook
    JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2022, 26 (09) : 2097 - 2105