Boosting aqueous non-flow zinc-bromine batteries with a two-dimensional metal-organic framework host: an adsorption-catalysis approach

Wei，Hua1,2,3; Qu，Guangmeng3; Zhang，Xiangyong1,3; Ren，Baohui1,3; Li，Shizhen1,3; Jiang，Jingjing1,3; Yang，Yihan3; Yang，Jinlong1; Zhao，Lingzhi4; Li，Hongfei3,5; Zhi，Chunyi3,6; Liu，Zhuoxin1

2023

10.1039/d3ee01639k

Energy and Environmental Science   Impact Factor & Quartile

1754-5692

1754-5706

Aqueous non-flow zinc-bromine batteries (NF-ZBBs) offer low fabrication cost, good safety, and a large capacity, making them appealing energy storage systems. However, the performance of bromine conversion hosts is substantially hampered by the polybromide shuttle effect and sluggish redox reactions. In this study, we develop a high-performance aqueous NF-ZBB employing a two-dimensional conjugated nickel polyphthalocyanine (NiPPc) as an adsorption-catalysis cathode host. This innovative design tackles the critical issues of shuttle effect, low bromine utilization, and low discharge voltage in existing NF-ZBBs. Both experimental measurements and theoretical simulations reveal that the atomically dispersed Ni-N sites in NiPPc act as effective sites for bromine redox reactions while exhibiting strong polarity for efficient adsorption of bromine and polybromides. This synergistic mechanism significantly enhances the overall full-cell electrochemical performance. The as-fabricated NF-ZBB showcases a large specific capacity of 265 mA h g at 2 A g with a high discharge voltage plateau of 1.82 V, approaching the theoretical value. It scores 240 mA h g even at 5 A g and retains ∼95% of this capacity after 3000 charge-discharge cycles. The NiPPc host with its unique adsorption-catalysis mechanism overcomes the limitations in conventional NF-ZBBs, emerging as a promising candidate for constructing high-performance aqueous batteries.

SCI

English

Corresponding

National Natural Science Foundation of China[22005207] ; Guangdong Basic and Applied Basic Research Foundation["2023A1515012120","2021B1515120004","2022A0505050015"] ; Shenzhen Stable Support Plan Program for Higher Education Institutions Research Program[20220816131408001] ; Shenzhen Science and Technology Program["JCYJ20220531100815035","RCBS20221008093126069"]

Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology

Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences

WOS:001048090800001

ROYAL SOC CHEMISTRY

2-s2.0-85169582933

Scopus

1.College of Materials Science and Engineering,Shenzhen University,Shenzhen,518055,China
2.College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen,518060,China
3.Songshan Lake Materials Laboratory,Dongguan,Guangdong,523808,China
4.Guangdong Provincial Engineering Technology Research Center for Low Carbon and Advanced Energy Materials,Institute of Semiconductor Science and Technology,South China Normal University,Guangzhou,510631,China
5.School of System Design and Intelligent Manufacturing,Southern University of Science and Technology,Shenzhen,518055,China
6.Department of Materials Science and Engineering,City University of Hong Kong,Kowloon,83 Tat Chee Avenue,999077,Hong Kong

Wei，Hua,Qu，Guangmeng,Zhang，Xiangyong,et al. Boosting aqueous non-flow zinc-bromine batteries with a two-dimensional metal-organic framework host: an adsorption-catalysis approach[J]. Energy and Environmental Science,2023,16(9).

Wei，Hua.,Qu，Guangmeng.,Zhang，Xiangyong.,Ren，Baohui.,Li，Shizhen.,...&Liu，Zhuoxin.(2023).Boosting aqueous non-flow zinc-bromine batteries with a two-dimensional metal-organic framework host: an adsorption-catalysis approach.Energy and Environmental Science,16(9).

Wei，Hua,et al."Boosting aqueous non-flow zinc-bromine batteries with a two-dimensional metal-organic framework host: an adsorption-catalysis approach".Energy and Environmental Science 16.9(2023).