A High-Energy Four-Electron Zinc Battery Enabled by Evoking Full Electrochemical Activity in Copper Sulfide Electrode

Li, Shizhen1,2,3; Wei, Zhiquan3; Yang, Jinlong1; Chen, Guangming1; Zhi, Chunyi3,4; Li, Hongfei5; Liu, Zhuoxin1

2023-11-07

10.1021/acsnano.3c05850

ACS NANO   影响因子和分区

1936-0851

1936-086X

The growing global demand for sustainable and cost-effective energy storage solutions has driven the rapid development of zinc batteries. Despite significant progress in recent years, enhancing the energy density of zinc batteries remains a crucial research focus. One prevalent strategy involves the development of high-capacity and/or high-voltage cathode materials. CuS, a commonly used electrode material, exhibits a two-electron transfer mechanism; however, the reduced sulfion lacks electrochemical activity and thereby limits its discharge capacity and redox potential. In this study, we activate a CuS cathode to form a high-valence Cu2+&S compound using a deep-eutectic-solvent (DES)-based electrolyte. The presence of Cl- in the DES-based electrolyte is crucial to the reversibility of the redox chemistry, and the liquid-phase-involved electrochemical process facilitates redox kinetics. A four-electron transfer pathway involving five reaction steps is identified for the CuS electrode, which unleashes the full electrochemical activity of the S element. Consequently, the full cell delivers a large discharge capacity of similar to 800 mAh g(-1) at 0.2 A g(-1) and yields a high discharge plateau starting at 1.58 V, contributing to energy densities of up to 650 Wh kg(-1) (based on CuS). This work offers a promising approach to developing high-energy zinc batteries.

zinc batteries aqueous batteries energy storage deep eutectic solution high voltage

SCI ; EI

英语

NI论文

通讯

Basic and Applied Basic Research Foundation of Guangdong Province[22005207] ; National Natural Science Foundation of China["2023A1515012120","2021B1515120004","2022A0505050015"] ; Guangdong Basic and Applied Basic Research Foundation["JCYJ20220531100815035","RCBS20221008093126069"]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001110607600001

AMER CHEMICAL SOC

20234915155727

Cathodes ; Copper compounds ; Cost effectiveness ; Electric discharges ; Electrochemical electrodes ; Electrolytes ; Electron transitions ; Energy storage ; Eutectics ; Redox reactions ; Sulfur compounds

Energy Storage:525.7 ; Metallography:531.2 ; Zinc and Alloys:546.3 ; Electricity: Basic Concepts and Phenomena:701.1 ; Electric Batteries and Fuel Cells:702 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Industrial Economics:911.2

Web of Science

1.Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China
3.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China
4.City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, Hong Kong 999077, Peoples R China
5.Southern Univ Sci & Technol, Sch Syst Design & Intelligent Mfg, Shenzhen 518055, Peoples R China

Li, Shizhen,Wei, Zhiquan,Yang, Jinlong,et al. A High-Energy Four-Electron Zinc Battery Enabled by Evoking Full Electrochemical Activity in Copper Sulfide Electrode[J]. ACS NANO,2023,17(22):22478-22487.

Li, Shizhen.,Wei, Zhiquan.,Yang, Jinlong.,Chen, Guangming.,Zhi, Chunyi.,...&Liu, Zhuoxin.(2023).A High-Energy Four-Electron Zinc Battery Enabled by Evoking Full Electrochemical Activity in Copper Sulfide Electrode.ACS NANO,17(22),22478-22487.

Li, Shizhen,et al."A High-Energy Four-Electron Zinc Battery Enabled by Evoking Full Electrochemical Activity in Copper Sulfide Electrode".ACS NANO 17.22(2023):22478-22487.