Toward ultra-long cycling stability and high lithium storage performances: Silica anodes with catalytic effects of low-cost metals particles

2021 ◽  
Vol 25 ◽  
pp. 101205
Author(s):  
Yong Cheng ◽  
Bingbing Chen ◽  
Mengyao Zhu ◽  
Limin Chang ◽  
Dongyu Zhang ◽  
...  
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.


Author(s):  
Weixin He ◽  
Shiyong Zuo ◽  
Xijun Xu ◽  
Liyan Zeng ◽  
Li Liu ◽  
...  

The obstacles of dendrite growth, hydrogen evolution, corrosion and passivation of the zinc anode seriously restrict the cycling stability of aqueous zinc-ion batteries which possess high safety and low cost.


CrystEngComm ◽  
2020 ◽  
Vol 22 (21) ◽  
pp. 3588-3597 ◽  
Author(s):  
Xiangchen Zhao ◽  
Guiling Niu ◽  
Hongxun Yang ◽  
Jiaojiao Ma ◽  
Mengfei Sun ◽  
...  

New MIL-88A@polyoxometalates microrods have been constructed via a simple one-step hydrothermal method, exhibiting the improved lithium storage capacity, rate performance and cycling stability.


2020 ◽  
Vol 4 (9) ◽  
pp. 4780-4788 ◽  
Author(s):  
Qiang Ma ◽  
Jiakang Qu ◽  
Xiang Chen ◽  
Zhuqing Zhao ◽  
Yan Zhao ◽  
...  

Low-cost feedstocks and rationally designed structures are the keys to determining the lithium-storage performance and practical applications of Si-based anodes for lithium-ion batteries (LIBs).


2018 ◽  
Vol 433 ◽  
pp. 428-436 ◽  
Author(s):  
Siqi Wang ◽  
Naiqin Zhao ◽  
Chunsheng Shi ◽  
Enzuo Liu ◽  
Chunnian He ◽  
...  

2015 ◽  
Vol 8 (5) ◽  
pp. 1480-1483 ◽  
Author(s):  
Han Hu ◽  
Le Yu ◽  
Xuehui Gao ◽  
Zhan Lin ◽  
Xiong Wen (David) Lou

Hierarchical tubular structures constructed from ultrathin TiO2(B) nanosheets show excellent electrochemical lithium storage properties with a high capacity, excellent rate capability and cycling stability.


2019 ◽  
Vol 72 (6) ◽  
pp. 473 ◽  
Author(s):  
Zongkai Yue ◽  
Yaozu Kang ◽  
Tianyu Mao ◽  
Mengmeng Zhen ◽  
Zhiyong Wang

Titanium dioxide (TiO2) has been widely investigated as the electrode material for lithium ion batteries (LIBs), due to its low cost, small volume expansion, and high environmental friendliness. However, the fading capacity and short cycle life during the cycling process lead to poor cycling performance. Herein, multilayer TiO2 nanobelts with a high specific surface area and with many pores between nanoparticles are constructed via a simple and large-scale approach. Benefiting from the multilayer nanobelt structure, as-prepared TiO2 nanobelts deliver a high reversible capacity, strong cycling stability, and ultra-long cycle life (~185mAhg−1 at 500mAg−1 after 500 cycles) as electrode materials for LIBs.


2019 ◽  
Vol 7 (28) ◽  
pp. 16785-16792 ◽  
Author(s):  
Wenwu Li ◽  
Jiale Yu ◽  
Jiajun Wen ◽  
Jun Liao ◽  
Ziyao Ye ◽  
...  

An amorphous ZnP2/C composite with P–C bonds achieves ultralong cycling stability and high rate performance.


2019 ◽  
Vol 12 (03) ◽  
pp. 1950042 ◽  
Author(s):  
Yunfeng Wang ◽  
Honghui Jiang ◽  
Shewen Ye ◽  
Jiaming Zhou ◽  
Jiahao Chen ◽  
...  

As the low-cost, natural multi-component for elemental doping and environment-friendly characteristics, biomass-derived porous carbon for energy storage attracts intense attention. Herein, walnut shells-based porous carbon has been obtained through carbonization, hydrothermal and activation treatment. The corresponding porous carbon owns superior electrochemical performances with specific capacitance reaching up to 462[Formula: see text]F[Formula: see text]g[Formula: see text] at 1[Formula: see text]A[Formula: see text]g[Formula: see text], and shows excellent cycling stability (5000 cycles, [Formula: see text]94.2% of capacitance retention at 10[Formula: see text]A[Formula: see text]g[Formula: see text]). Moreover, the symmetry supercapacitor achieves high specific capacitance (197[Formula: see text]F[Formula: see text]g[Formula: see text] at 1[Formula: see text]A[Formula: see text]g[Formula: see text]), relevant electrochemical cycling stability (5000 cycles, 89.2% of capacitance retention at 5[Formula: see text]A[Formula: see text]g[Formula: see text]) and high power/energy density (42.8[Formula: see text]W[Formula: see text]h[Formula: see text]kg[Formula: see text] at 1249[Formula: see text]W[Formula: see text]kg[Formula: see text]). Therefore, the facile synthesis approach and superb electrochemical performance ensure that the walnut shells-derived porous carbon is a promising electrode material candidate for supercapacitors.


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