Surface oxygen vacancies boosted high rate performance of porous MnO2 anode for lithium-ion batteries

Ionics ◽  
2021 ◽  
Author(s):  
Xiaole Zhang ◽  
Song Li ◽  
Shenghe Wang ◽  
Kun Liu ◽  
Zining Zhang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Oxygen Vacancies ◽  
Lithium Ion ◽  
High Rate ◽  
Rate Performance ◽  
Surface Oxygen ◽  
High Rate Performance

scholarly journals Introducing Oxygen Vacancies in Li4Ti5O12 via Hydrogen Reduction for High-Power Lithium-Ion Batteries

Processes ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1655
Author(s):  
Yiguang Zhou ◽  
Shuhao Xiao ◽  
Zhenzhe Li ◽  
Xinyan Li ◽  
Jintao Liu ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Lithium Ion Batteries ◽  
Density Functional ◽  
Oxygen Vacancies ◽  
Electronic Conductivity ◽  
Lithium Ion ◽  
High Rate ◽  
Oxygen Vacancy Concentration ◽  
Rate Performance ◽  
High Rate Performance

Li4Ti5O12 (LTO), known as a zero-strain material, is widely studied as the anode material for lithium-ion batteries owing to its high safety and long cycling stability. However, its low electronic conductivity and Li diffusion coefficient significantly deteriorate its high-rate performance. In this work, we proposed a facile approach to introduce oxygen vacancies into the commercialized LTO via thermal treatment under Ar/H2 (5%). The oxygen vacancy-containing LTO demonstrates much better performance than the sample before H2 treatment, especially at high current rates. Density functional theory calculation results suggest that increasing oxygen vacancy concentration could enhance the electronic conductivity and lower the diffusion barrier of Li+, giving rise to a fast electrochemical kinetic process and thus improved high-rate performance.

Synthesis of hierarchical ZnO/ZnCo2O4 nanosheets with mesostructures for lithium-ion anodes

RSC Advances ◽  
2016 ◽  
Vol 6 (49) ◽  
pp. 43551-43555 ◽  
Author(s):  
Mengmeng Zhen ◽  
Xiao Zhang ◽  
Lu Liu
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
High Rate ◽  
Rate Performance ◽  
High Rate Performance

Novel bi-component-active hierarchical ZnO/ZnCo2O4 nanosheets with mesostructures presented a good high-rate performance for lithium ion batteries.

MOF-templated thermolysis for porous CuO/Cu2O@CeO2 anode material of lithium-ion batteries with high rate performance

2017 ◽  
Vol 52 (12) ◽  
pp. 7140-7148 ◽  
Author(s):  
Lijuan Wang ◽  
Xiaojie Wang ◽  
Zhaohui Meng ◽  
Hongjiang Hou ◽  
Baokuan Chen
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Lithium Ion ◽  
High Rate ◽  
Rate Performance ◽  
High Rate Performance

Preparation of hierarchical MoO2@RGO composite and its application for high rate performance lithium-ion batteries

2018 ◽  
Vol 212 ◽  
pp. 198-201 ◽  
Author(s):  
Xiaochuan Chen ◽  
Renpin Liu ◽  
Lingxing Zeng ◽  
Xiaoxia Huang ◽  
Yixing Fang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
High Rate ◽  
Rate Performance ◽  
High Rate Performance

Enhanced high rate performance of Li[Li0.17Ni0.2Co0.05Mn0.58−xAlx]O2−0.5x cathode material for lithium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (61) ◽  
pp. 49651-49656 ◽  
Author(s):  
Y. L. Wang ◽  
X. Huang ◽  
F. Li ◽  
J. S. Cao ◽  
S. H. Ye
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Sol Gel ◽  
Lithium Ion ◽  
High Rate ◽  
Rate Performance ◽  
High Rate Performance

Pristine LNCM and LNCMA as Li-rich cathode materials for lithium ion batteries were synthesized via a sol–gel route. The Al-substituted LNCM sample exhibits an enhanced high rate performance and superior cyclability.

High-rate performance of LiNi0.5Mn1.45Al0.05O4 cathode material for lithium-ion batteries

Ionics ◽  
2021 ◽  
Author(s):  
Li Wang ◽  
Li Sheng ◽  
Jin Wang ◽  
Hong Xu ◽  
Guangyu Tian ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
High Rate ◽  
Rate Performance ◽  
High Rate Performance
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