Recent advances and future perspectives for aqueous zinc-ion capacitors

2021 ◽  
Author(s):  
Zhaodong HUANG ◽  
Rong ZHANG ◽  
Shaoce ZHANG ◽  
Pei LI ◽  
Chuan LI ◽  
...  

Abstract The ion hybrid capacitor is expected to combine the high specific energy of battery-type materials and the superior specific power of capacitor-type materials, being considered as a promising energy storage technique. Particularly, the aqueous zinc-ion capacitors (ZIC) possessing merits of high safety, cost-efficiency and eco-friendliness, have been widely explored with various electrode materials and electrolytes to obtain excellent electrochemical performance. In this review, we first summarized the research progress on enhancing the specific capacitance of capacitor-type materials and reviewed the research on improving the cycling capability of battery-type materials under high current densities. Then, we looked back on the effects of electrolyte engineering on the electrochemical performance of ZIC. Finally, the research challenges and development directions of ZIC have been proposed. This review provides a guidance for the design and construction of the high-performance ZIC.

2020 ◽  
Vol 15 (12) ◽  
pp. 1429-1435
Author(s):  
Yan Zhao ◽  
Yucai Li ◽  
Dong Zhang ◽  
Shiwei Song ◽  
Jian Wang ◽  
...  

Electrochemical performance of the material depends on the morphology and structural characteristics of the material. Co3O4 samples shows the remarkable electrochemical performance owing to the high porosity, appropriate pore size distribution and novel architecture and reaction time effect of morphology. In this work, Co3O4 nanowires grown on Ni foam have been synthesized through a facile hydrothermal approach, revealing large capacitance of 2178.4 mF cm-2 at the current density of 2 mA cm-2 and cycling stability with 79.6% capacitance retention after 6000 cycles. The as-assembled device delivers excellent electrochemical performance for high specific capacitance of 356 mF cm-2 at the current density of 2 mA cm-2 and high cycle stability.


Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 155
Author(s):  
Bin Zhang ◽  
Ping Liu ◽  
Zijiong Li ◽  
Xiaohui Song

Designing a novel, efficient, and cost-effective nanostructure with the advantage of robust morphology and outstanding conductivity is highly promising for the electrode materials of high-performance electrochemical storage device. In this paper, a series of honeycombed perovskite-type Sr-doped LaNiO3 nanosheets with abundant porous structure were successfully synthesized by accurately controlling the Sr-doped content. The study showed that the optimal LSNO-0.4 (La0.6Sr0.4NiO3-δ) electrode exhibited excellent electrochemical performance, which showed a high capacity of 115.88 mAh g−1 at 0.6 A g−1. Furthermore, a hybrid supercapacitor device (LSNO//AC) based on LSNO-0.4 composites and activated carbon (AC) showed a high energy density of 17.94 W h kg−1, a high power density of 1600 W kg−1, and an outstanding long-term stability with 104.4% capacity retention after 16,000 cycles, showing an excellent electrochemical performance and a promising application as an electrode for energy storage.


2015 ◽  
Vol 3 (5) ◽  
pp. 1896-1901 ◽  
Author(s):  
Shengliang Zhang ◽  
Wei Huang ◽  
Pu Hu ◽  
Changshui Huang ◽  
Chaoqun Shang ◽  
...  

Conjugated microporous polymers are explored as high-performance electrode materials for lithium and sodium storage, exhibiting excellent electrochemical performance.


Author(s):  
fuyong Ren ◽  
Yajun Ji ◽  
Fei Chen ◽  
Yiyi Qian ◽  
Jingjing Tian ◽  
...  

The design and fabrication of electrode materials with excellent electrochemical performance are the key measures to improve the energy density of device. Since cobalt based materials have excellent conductivity and...


Nanoscale ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 1921-1938 ◽  
Author(s):  
Liu Yang ◽  
Xintong Lu ◽  
Shihao Wang ◽  
Jiansen Wang ◽  
Xiaohui Guan ◽  
...  

Schematic descriptions for the formation of CoNi2S4, NiCo-LDH, and NiO/Co3O4 and the excellent electrochemical performance of CoNi2S4.


2019 ◽  
Vol 7 (3) ◽  
pp. 940-945 ◽  
Author(s):  
Boya Tang ◽  
Jiang Zhou ◽  
Guozhao Fang ◽  
Fei Liu ◽  
Chuyu Zhu ◽  
...  

We report a series of ammonium vanadates as cathodes for aqueous ZIBs and provide insights into the origin of the enhanced electrochemical behaviors. The NH4V4O10 compound, with the largest interplanar spacing (9.8 Å), exhibits excellent electrochemical performance.


2019 ◽  
Vol 7 (21) ◽  
pp. 12997-13006 ◽  
Author(s):  
Qiulong Li ◽  
Qichong Zhang ◽  
Chenglong Liu ◽  
Zhengyu Zhou ◽  
Chaowei Li ◽  
...  

Fiber-shaped Zn-ion batteries with TiN@V2O5 as cathode have excellent electrochemical performance.


RSC Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 6798-6803
Author(s):  
Linchao Zeng ◽  
Jianhui Zhu ◽  
Minsu Liu ◽  
Peixin Zhang

Antimony nanosheet modified separator is prepared for high performance Li–S batteries for the first time.


2017 ◽  
Vol 41 (21) ◽  
pp. 12901-12909 ◽  
Author(s):  
Chunfeng Shao ◽  
Ziqiang Wang ◽  
Errui Wang ◽  
Shujun Qiu ◽  
Hailiang Chu ◽  
...  

Guanine was, for the first time, used as a nitrogen source during the synthesis of nitrogen-doped porous carbons (NMCs) with enhanced electrochemical performance.


2021 ◽  
Author(s):  
Eun Seop Yoon ◽  
Bong Gill Choi ◽  
Hwan-Jin Jeon

Abstract The development of energy storage electrode materials is important for enhancing the electrochemical performance of supercapacitors. Despite extensive research on improving electrochemical performance with polymer-based materials, electrode materials with micro/nanostructures are needed for fast and efficient ion and electron transfer. In this work, highly ordered phosphomolybdate (PMoO)-grafted polyaniline (PMoO-PAI) deposited onto Au hole-cylinder nanopillar arrays is developed for high-performance pseudocapacitors. The three-dimensional nanostructured arrays are easily fabricated by secondary sputtering lithography, which has recently gained attention and features a high resolution of 10 nm, a high aspect ratio greater than 20, excellent uniformity/accuracy/precision, and compatibility with large area substrates. These 10nm scale Au nanostructures with a high aspect ratio of ~30 on Au substrates facilitate efficient ion and electron transfer. The resultant PMoO-PAI electrode exhibits outstanding electrochemical performance, including a high specific capacitance of 114 mF/cm2, a high-rate capability of 88%, and excellent long-term stability.


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