Electrochemical Kinetics and Cycle Stability Improvement with Nb Doping for Lithium-Rich Layered Oxides
Electrochemical Kinetics and Cycle Stability Improvement with Nb Doping for Lithium-Rich Layered Oxides
复制标题
通过 Nb 掺杂改善富锂层状氧化物的电化学动力学和循环稳定性
DOI:
10.1021/acsaem.8b01534
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发表时间:
2018-12
影响因子:
6.4
通讯作者:
Haijun Yu
中科院分区:
文献类型:
--
作者:
Muhammad Zubair;Guangyin Li;Boya Wang;Lin Wang;Haijun Yu
Lithium-rich layered oxide materials are extremely important for improving the energy density of lithium-ion batteries. However, the electrochemical kinetics and cycle stability of these materials are still not good enough for further industrial application. Here, the effects of Nb doping on the crystalline structure, surface chemistry, cycle stability, and electrochemical kinetics of Li1.13Mn0.52Ni0.26Co0.10O2 are studied. Results show that Nb doping can significantly promote the cycle stability and electrochemical kinetics of Li1.13Mn0.52Ni0.26Co0.10O2. After 200 cycles, the discharge capacity retention increases from 59.2% (pristine material) to 78.8% (1% Nb element doping) with obvious enhanced rate performance. Via X-ray diffraction, scanning electron microscope, energy dispersive spectroscopy, X-ray photoelectron spectroscopy, and galvanostatic intermittent titration analysis, it is confirmed that Nb element has been successfully doped into the bulk of Li1.13Mn0.52Ni0.26Co0.10O2. Doping sites of Nb ...
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影响因子:
9.5
作者:
Shi, Ji-Lei;Zhang, Jie-Nan;Wan, Li-Jun
通讯作者:
Wan, Li-Jun
影响因子:
7.2
作者:
Li Huimian;Guo Huajun;Wang Zhixing;Wang Jiexi;Li Xinhai;Chen Ning;Gui Weihua
通讯作者:
Gui Weihua
影响因子:
19
作者:
Li, Biao;Yan, Huijun;Wu, Ziyu
通讯作者:
Wu, Ziyu
影响因子:
8.6
作者:
Li, Jing;Camardese, John;Dahn, J. R.
通讯作者:
Dahn, J. R.
影响因子:
9.2
作者:
Han, Shaojie;Qiu, Bao;Liu, Zhaoping
通讯作者:
Liu, Zhaoping