Activating the Stepwise Intercalation–Conversion Reaction of Layered Copper Sulfide toward Extremely High Capacity Zinc-Metal-Free Anodes for Rocking-Chair Zinc-Ion Batteries

2021 ◽  
Author(s):  
Zeheng Lv ◽  
Bo Wang ◽  
Minghui Ye ◽  
Yufei Zhang ◽  
Yang Yang ◽  
...  
Keyword(s):  
Copper Sulfide ◽  
High Capacity ◽  
Zinc Ion ◽  
Conversion Reaction ◽  
Metal Free ◽  
Zinc Metal

Hexagonal MoO3 as a zinc intercalation anode towards zinc metal-free zinc-ion batteries

2020 ◽  
Vol 8 (18) ◽  
pp. 9006-9012 ◽  
Author(s):  
Ting Xiong ◽  
Yaoxin Zhang ◽  
Yinming Wang ◽  
Wee Siang Vincent Lee ◽  
Junmin Xue
Keyword(s):  
Zinc Ion ◽  
Metal Free ◽  
Zinc Metal ◽  
Metal Plates ◽  
Free Zinc ◽  
First Time

Hexagonal MoO3 is proposed as an intercalation anode as a potential replacement for Zn metal plates for the first time.

scholarly journals Solvation Structure and Interfacial Regulation for Extremely Stable Zinc Metal Anodes Operating in a Wide Range of Temperatures

2021 ◽  
Author(s):  
Peixun Xiong ◽  
Yingbo Kang ◽  
Nan Yao ◽  
Xiang Chen ◽  
Lingxing Zeng ◽  
...  
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
Extreme Temperature ◽  
High Capacity ◽  
Zinc Ion ◽  
Metal Anode ◽  
Practical Applications ◽  
Zinc Metal ◽  
Wide Range ◽  
Solvation Structure

Abstract Aqueous zinc-metal batteries are promising for large-scale energy storage owing to their reasonable energy density, safety and low cost. However, their practical applications are limited by hydrogen evolution, corrosion, and dendrite formation of Zn anode and there is trade-off between efficiency and stability at high and low temperatures. Herein, we propose a solvation chemistry regulation strategy that can adjust the Zn2+-solvation structure and in situ form a robust and Zn2+-conducting Zn5(CO3)2(OH)6 SEI on the Zn surface, using hybrid electrolytes of water and a polar aprotic N, N-dimethylformamide. As verified by experimental characterizations and computational analyses, the unique solvation structure and the newly formed solid electrolyte interface are created by hybrid electrolytes, resulting in highly reversible and dendrite-free Zn plating/stripping process as well as thermal stability and high ionic conductivity from −30 to 70 °C. The Zn||Zn symmetric cells in hybrid electrolytes are very stable over 2500 h at 25 ℃ and 2000 h even at –20 ℃. Thus, the stability and reversibility of the hybrid zinc-ion capacitors with Zn metal anode in hybrid electrolytes are firstly achieved in a wide and extreme temperature range, demonstrating high capacity retentions and Coulombic efficiencies over 14000, 10000, and 600 cycles at 25, −20, and 70 ℃, respectively.

scholarly journals Converting copper sulfide to copper with surface sulfur for electrocatalytic alkyne semi-hydrogenation with water

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yongmeng Wu ◽  
Cuibo Liu ◽  
Changhong Wang ◽  
Yifu Yu ◽  
Yanmei Shi ◽  
...  
Keyword(s):  
Binding Energy ◽  
Noble Metal ◽  
Atomic Hydrogen ◽  
Copper Sulfide ◽  
Low Cost ◽  
Water Electrolysis ◽  
Metal Free ◽  
Copper Nanowire

AbstractElectrocatalytic alkyne semi-hydrogenation to alkenes with water as the hydrogen source using a low-cost noble-metal-free catalyst is highly desirable but challenging because of their over-hydrogenation to undesired alkanes. Here, we propose that an ideal catalyst should have the appropriate binding energy with active atomic hydrogen (H*) from water electrolysis and a weaker adsorption with an alkene, thus promoting alkyne semi-hydrogenation and avoiding over-hydrogenation. So, surface sulfur-doped and -adsorbed low-coordinated copper nanowire sponges are designedly synthesized via in situ electroreduction of copper sulfide and enable electrocatalytic alkyne semi-hydrogenation with over 99% selectivity using water as the hydrogen source, outperforming a copper counterpart without surface sulfur. Sulfur anion-hydrated cation (S2−-K+(H2O)n) networks between the surface adsorbed S2− and K+ in the KOH electrolyte boost the production of active H* from water electrolysis. And the trace doping of sulfur weakens the alkene adsorption, avoiding over-hydrogenation. Our catalyst also shows wide substrate scopes, up to 99% alkenes selectivity, good reducible groups compatibility, and easily synthesized deuterated alkenes, highlighting the promising potential of this method.

Granular Vanadium Nitride (VN) Cathode for High-Capacity and Stable Zinc-Ion Batteries

2021 ◽  
Author(s):  
Yao Rong ◽  
Hongzhe Chen ◽  
Jian Wu ◽  
Zhanhong Yang ◽  
Lie Deng ◽  
...  
Keyword(s):  
High Capacity ◽  
Zinc Ion ◽  
Vanadium Nitride

Bi2O3 Induced Ultralong Cycle Lifespan and High Capacity of MnO2 Nanotube Cathodes in Aqueous Zinc-Ion Batteries

2021 ◽  
Author(s):  
Lei Gou ◽  
Shao-Pan Zhao ◽  
Wen-Qi Wang ◽  
Lei Xu ◽  
Wen-Yan Wang ◽  
...  
Keyword(s):  
High Capacity ◽  
Zinc Ion

Improved Zinc-ion Storage Performance of the Metal-free Organic Anode by the Effect of Binder

2021 ◽  
pp. 131092
Author(s):  
Yu Liu ◽  
Meng Huang ◽  
Fangyu Xiong ◽  
Jiexin Zhu ◽  
Qinyou An
Keyword(s):  
Zinc Ion ◽  
Metal Free ◽  
Storage Performance ◽  
Ion Storage

Stress-release design for high-capacity and long-time lifespan aqueous zinc-ion batteries

2021 ◽  
pp. 100799
Author(s):  
Hao Luo ◽  
Bo Wang ◽  
Jiahuang Jian ◽  
Fangdong Wu ◽  
Li Peng ◽  
...  
Keyword(s):  
High Capacity ◽  
Zinc Ion ◽  
Stress Release ◽  
Long Time

Scalable Spray Drying Production of Amorphous V 2 O 5 –EGO 2D Heterostructured Xerogels for High‐Rate and High‐Capacity Aqueous Zinc Ion Batteries

Small ◽  
2022 ◽  
pp. 2105761
Author(s):  
Yubai Zhang ◽  
Jiadong Qin ◽  
Munkhbayar Batmunkh ◽  
Wei Li ◽  
Huaiqin Fu ◽  
...  
Keyword(s):  
Spray Drying ◽  
High Capacity ◽  
Zinc Ion ◽  
High Rate

scholarly journals A self-optimized dual zinc/copper-electrolyte anodic interfaces by mechanical rolling toward zinc ion batteries with high capacity and long cycle life

2021 ◽  
pp. 100897
Author(s):  
Xiao Zhu ◽  
Hongyuan Zhang ◽  
Zhen Wang ◽  
Caiwei Zhang ◽  
Liguang Qin ◽  
...  
Keyword(s):  
High Capacity ◽  
Zinc Ion ◽  
Cycle Life ◽  
Long Cycle ◽  
Long Cycle Life ◽  
Copper Electrolyte

Revisiting the conversion reaction in ultrafine SnO2 nanoparticles for exceptionally high-capacity Li-ion battery anodes: The synergetic effect of graphene and copper

2018 ◽  
Vol 769 ◽  
pp. 1113-1120 ◽  
Author(s):  
Da-Sol Kim ◽  
Hyun-Woo Shim ◽  
Mushtaq Ahmad Dar ◽  
Hyunseok Yoon ◽  
Hee Jo Song ◽  
...  
Keyword(s):  
Sno2 Nanoparticles ◽  
Synergetic Effect ◽  
High Capacity ◽  
Li Ion Battery ◽  
Conversion Reaction ◽  
Li Ion
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