Temperature–responsive coating endowing LiNi0.8Co0.1Mn0.1O2 cathode materials with improved cycling stability and overheating self-protection function

2022 ◽  
pp. 134645
Author(s):  
Tengfei Li ◽  
Lihua Wang ◽  
Jian Li
Author(s):  
Zhiguo Hou ◽  
Lei Zhang ◽  
Jianwu Chen ◽  
Yali Xiong ◽  
Xueqian Zhang ◽  
...  

Zn2+ added into electrolyte can effectively suppress H2 evolution. Therefore, a LiMn2O4/NaTi2(PO4)3 full cell exhibits enhanced overcharging performance and excellent cycling stability up to 10 000 cycles.


Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 122
Author(s):  
Renwei Lu ◽  
Xiaolong Ren ◽  
Chong Wang ◽  
Changzhen Zhan ◽  
Ding Nan ◽  
...  

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.


Nanoscale ◽  
2021 ◽  
Author(s):  
Dongdong Wang ◽  
Qizhang Yan ◽  
Mingqian Li ◽  
Hongpeng Gao ◽  
Jianhua Tian ◽  
...  

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...


2020 ◽  
Vol 8 (34) ◽  
pp. 17429-17441 ◽  
Author(s):  
Xue Huang ◽  
Wenchang Zhu ◽  
Junyi Yao ◽  
Liangmin Bu ◽  
Xiangyi Li ◽  
...  

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.


2019 ◽  
Vol 21 (39) ◽  
pp. 21984-21990 ◽  
Author(s):  
Songyoot Kaewmala ◽  
Visittapong Yordsri ◽  
Wanwisa Limphirat ◽  
Jeffrey Nash ◽  
Sutham Srilomsak ◽  
...  

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).


2016 ◽  
Vol 3 (3) ◽  
pp. 365-369 ◽  
Author(s):  
Feng Wang ◽  
Jiangyan Wang ◽  
Hao Ren ◽  
Hongjie Tang ◽  
Ranbo Yu ◽  
...  

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


2016 ◽  
Vol 42 (14) ◽  
pp. 15623-15633 ◽  
Author(s):  
Lin Zhou ◽  
Mijie Tian ◽  
Yunlong Deng ◽  
Qiaoji Zheng ◽  
Chenggang Xu ◽  
...  

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