scholarly journals Dual Effect of Aluminum Doping and Lithium Tungstate Coating on the Surface Improves the Cycling Stability of Lithium-rich Manganese-based Cathode Materials

2020 ◽  
Vol 78 (11) ◽  
pp. 1268
Author(s):  
Xuqiang Ren ◽  
Donglin Li ◽  
Zhenzhen Zhao ◽  
Guangqi Chen ◽  
Kun Zhao ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Cycling Stability ◽  
Dual Effect ◽  
Aluminum Doping ◽  
Lithium Tungstate

scholarly journals Na0.76V6O15/Activated Carbon Hybrid Cathode for High-Performance Lithium-Ion Capacitors

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 122
Author(s):  
Renwei Lu ◽  
Xiaolong Ren ◽  
Chong Wang ◽  
Changzhen Zhan ◽  
Ding Nan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Power Density ◽  
Cathode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Artificial Graphite

Lithium-ion hybrid capacitors (LICs) are regarded as one of the most promising next generation energy storage devices. Commercial activated carbon materials with low cost and excellent cycling stability are widely used as cathode materials for LICs, however, their low energy density remains a significant challenge for the practical applications of LICs. Herein, Na0.76V6O15 nanobelts (NaVO) were prepared and combined with commercial activated carbon YP50D to form hybrid cathode materials. Credit to the synergism of its capacitive effect and diffusion-controlled faradaic effect, NaVO/C hybrid cathode displays both superior cyclability and enhanced capacity. LICs were assembled with the as-prepared NaVO/C hybrid cathode and artificial graphite anode which was pre-lithiated. Furthermore, 10-NaVO/C//AG LIC delivers a high energy density of 118.9 Wh kg−1 at a power density of 220.6 W kg−1 and retains 43.7 Wh kg−1 even at a high power density of 21,793.0 W kg−1. The LIC can also maintain long-term cycling stability with capacitance retention of approximately 70% after 5000 cycles at 1 A g−1. Accordingly, hybrid cathodes composed of commercial activated carbon and a small amount of high energy battery-type materials are expected to be a candidate for low-cost advanced LICs with both high energy density and power density.

Boosting Cycling Stability of Ni-rich Layered Oxide Cathode by Dry Coating of Ultrastable Li3V2(PO4)3 Nanoparticles

Nanoscale ◽  
2021 ◽  
Author(s):  
Dongdong Wang ◽  
Qizhang Yan ◽  
Mingqian Li ◽  
Hongpeng Gao ◽  
Jianhua Tian ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
High Energy ◽  
Cycling Stability ◽  
Next Generation ◽  
Layered Oxides ◽  
Dry Coating ◽  
Layered Oxide ◽  
Oxide Cathode

Nickel (Ni)-rich layered oxides such as LiNi0.6Co0.2Mn0.2O2 (NCM622) represent one of the most promising candidates for the next-generation high-energy lithium-ion batteries (LIBs). However, the pristine Ni-rich cathode materials usually suffer...

Suppressing structural degradation of Ni-rich cathode materials towards improved cycling stability enabled by a Li2MnO3 coating

2020 ◽  
Vol 8 (34) ◽  
pp. 17429-17441 ◽  
Author(s):  
Xue Huang ◽  
Wenchang Zhu ◽  
Junyi Yao ◽  
Liangmin Bu ◽  
Xiangyi Li ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Cycling Stability ◽  
Structural Degradation

In situ XRD examinations demonstrate significant effects of a Li2MnO3 coating on suppressing structural degradation during charging/discharging of Ni-rich cathode materials for enhanced cycling stability.

Rate dependent structural transition and cycling stability of a lithium-rich layered oxide material

2019 ◽  
Vol 21 (39) ◽  
pp. 21984-21990 ◽  
Author(s):  
Songyoot Kaewmala ◽  
Visittapong Yordsri ◽  
Wanwisa Limphirat ◽  
Jeffrey Nash ◽  
Sutham Srilomsak ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Cathode Materials ◽  
Structural Transition ◽  
Cycling Stability ◽  
Oxide Material ◽  
Oxide Materials ◽  
Promising Candidate ◽  
Layered Oxide ◽  
Rate Dependent

Lithium-rich layered oxide materials, xLi2MnO3·(1 − x)LiMO2 (M = Mn, Fe, Co, Ni, etc.), are a promising candidate for use as cathode materials in the batteries of electric vehicles (EVs).

Multi-shelled LiMn2O4 hollow microspheres as superior cathode materials for lithium-ion batteries

2016 ◽  
Vol 3 (3) ◽  
pp. 365-369 ◽  
Author(s):  
Feng Wang ◽  
Jiangyan Wang ◽  
Hao Ren ◽  
Hongjie Tang ◽  
Ranbo Yu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Hollow Microspheres ◽  
High Uniformity

Multi-shelled LiMn2O4 hollow microspheres are prepared with high uniformity, exhibiting impressive cycling stability as cathode materials for lithium-ion batteries.

La2O3-coated Li1.2Mn0.54Ni0.13Co0.13O2 as cathode materials with enhanced specific capacity and cycling stability for lithium-ion batteries

2016 ◽  
Vol 42 (14) ◽  
pp. 15623-15633 ◽  
Author(s):  
Lin Zhou ◽  
Mijie Tian ◽  
Yunlong Deng ◽  
Qiaoji Zheng ◽  
Chenggang Xu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Cycling Stability
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