scholarly journals Solvo-Thermal Synthesis of H6V4O10 Microspheres as Stable Electrode Materials for Lithium and Zinc-ion Batteries

2019 ◽  
pp. 11560-11570
Author(s):  
Hailong Fei ◽  
2021 ◽  
Vol 44 ◽  
pp. 103385
Author(s):  
Zhimin Zou ◽  
Xiaoling Luo ◽  
Lin Wang ◽  
Yi Zhang ◽  
Zhijun Xu ◽  
...  

2021 ◽  
Vol 2076 (1) ◽  
pp. 012115
Author(s):  
Chengyu Fu ◽  
Dongming Gao

Abstract Electrochemical energy storage problems become a worldwide research direction. Now Lithium-ion batteries (LIBs) are the most common battery product. However, LIBs still has many shortcomings such as, safety problems, a scarcity of lithium, and high price. Rechargeable aqueous-based zinc ion batteries (AZIBs) with lower costs, fewer safety risks as well as abundant zinc reserves have attracted extensive research interest. For the current electrode materials of AZIBs, for example, Mn-based materials, V-based materials and metallic zinc, scientists have done in-depth research to develop the performance of the materials, but complex processes are still inevitable. As a result, sustainable and scalable manufacturing technology and electrode materials with high capacity and the longer service life is the research direction.


2021 ◽  
Author(s):  
Yi Liu ◽  
Ying Liu ◽  
Yusuke Yamauchi ◽  
Zeid A. Alothman ◽  
Yusuf Valentino Kaneti ◽  
...  

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Linpo Li ◽  
Shuailei Liu ◽  
Wencong Liu ◽  
Deliang Ba ◽  
Wenyi Liu ◽  
...  

AbstractVanadium-based cathodes have attracted great interest in aqueous zinc ion batteries (AZIBs) due to their large capacities, good rate performance and facile synthesis in large scale. However, their practical application is greatly hampered by vanadium dissolution issue in conventional dilute electrolytes. Herein, taking a new potassium vanadate K0.486V2O5 (KVO) cathode with large interlayer spacing (~ 0.95 nm) and high capacity as an example, we propose that the cycle life of vanadates can be greatly upgraded in AZIBs by regulating the concentration of ZnCl2 electrolyte, but with no need to approach “water-in-salt” threshold. With the optimized moderate concentration of 15 m ZnCl2 electrolyte, the KVO exhibits the best cycling stability with ~ 95.02% capacity retention after 1400 cycles. We further design a novel sodium carboxymethyl cellulose (CMC)-moderate concentration ZnCl2 gel electrolyte with high ionic conductivity of 10.08 mS cm−1 for the first time and assemble a quasi-solid-state AZIB. This device is bendable with remarkable energy density (268.2 Wh kg−1), excellent stability (97.35% after 2800 cycles), low self-discharge rate, and good environmental (temperature, pressure) suitability, and is capable of powering small electronics. The device also exhibits good electrochemical performance with high KVO mass loading (5 and 10 mg cm−2). Our work sheds light on the feasibility of using moderately concentrated electrolyte to address the stability issue of aqueous soluble electrode materials.


2018 ◽  
Vol 3 (10) ◽  
pp. 2620-2640 ◽  
Author(s):  
Aishuak Konarov ◽  
Natalia Voronina ◽  
Jae Hyeon Jo ◽  
Zhumabay Bakenov ◽  
Yang-Kook Sun ◽  
...  

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