Advanced high-voltage and super-stable sodium–zinc hybrid ion batteries enabled by a hydrogel electrolyte
Aqueous secondary batteries are promising candidates for next-generation large-scale energy storage systems owing to their excellent safety and cost-effectiveness. However, their commercialization faces considerable challenges owing to a limited electrochemical stability window and lower energy dens...
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2024-12-01
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| Series: | Energy Materials and Devices |
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| Online Access: | https://www.sciopen.com/article/10.26599/EMD.2024.9370050 |
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| author | Debin Kong Xinru Wei Jinshu Yue Changzhi Ji Jianhang Yang Guanzhong Ma Xia Hu Wenting Feng Changming Mao Zhongtao Li Linjie Zhi |
| author_facet | Debin Kong Xinru Wei Jinshu Yue Changzhi Ji Jianhang Yang Guanzhong Ma Xia Hu Wenting Feng Changming Mao Zhongtao Li Linjie Zhi |
| author_sort | Debin Kong |
| collection | DOAJ |
| description | Aqueous secondary batteries are promising candidates for next-generation large-scale energy storage systems owing to their excellent safety and cost-effectiveness. However, their commercialization faces considerable challenges owing to a limited electrochemical stability window and lower energy density. In this study, we present a rationally designed hydrogel electrolyte, featuring a distinctive polymer network and reduced free water content, created using a UV-curing method. This innovation results in an impressive ionic conductivity of 43 mS cm−1, high mechanical strength and an enhanced electrochemical stability window of up to 2.5 V (vs. Zn/Zn2+). The hybrid electrolyte demonstrates impressive viability and versatility, enabling compatibility with various cathode materials for use in both aqueous Na–Zn hybrid batteries and Zn-ion batteries. Notably, when paired with a Prussian blue cathode, the assembled hybrid batteries show remarkable cyclability, enduring over 6000 cycles with a minimal capacity decay of only 0.0096% per cycle at a high current density of 25 C. Additionally, the Zn||Na2MnFe(CN)6 full battery using the synthesized hydrogel electrolyte achieves a high energy density of approximately 220 Wh kg−1 and outstanding rate performance reaching up to 5 C. This research provides important insights for designing aqueous hybrid electrolytes that combine both high ionic conductivity and an expansive electrochemical stability window. |
| format | Article |
| id | doaj-art-aab46fe181fc45038665316e01622a94 |
| institution | Kabale University |
| issn | 3005-3315 3005-3064 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Energy Materials and Devices |
| spelling | doaj-art-aab46fe181fc45038665316e01622a942025-01-10T06:46:02ZengTsinghua University PressEnergy Materials and Devices3005-33153005-30642024-12-0124937005010.26599/EMD.2024.9370050Advanced high-voltage and super-stable sodium–zinc hybrid ion batteries enabled by a hydrogel electrolyteDebin Kong0Xinru Wei1Jinshu Yue2Changzhi Ji3Jianhang Yang4Guanzhong Ma5Xia Hu6Wenting Feng7Changming Mao8Zhongtao Li9Linjie Zhi10College of New Energy, China University of Petroleum (East China), Qingdao 266580, ChinaCollege of New Energy, China University of Petroleum (East China), Qingdao 266580, ChinaCollege of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, ChinaCollege of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, ChinaCollege of Materials Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, ChinaCollege of New Energy, China University of Petroleum (East China), Qingdao 266580, ChinaCollege of New Energy, China University of Petroleum (East China), Qingdao 266580, ChinaAdvanced Chemical Engineering and Energy Materials Research Center, China University of Petroleum (East China), Qingdao 266580, ChinaCollege of Materials Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, ChinaCollege of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, ChinaCollege of New Energy, China University of Petroleum (East China), Qingdao 266580, ChinaAqueous secondary batteries are promising candidates for next-generation large-scale energy storage systems owing to their excellent safety and cost-effectiveness. However, their commercialization faces considerable challenges owing to a limited electrochemical stability window and lower energy density. In this study, we present a rationally designed hydrogel electrolyte, featuring a distinctive polymer network and reduced free water content, created using a UV-curing method. This innovation results in an impressive ionic conductivity of 43 mS cm−1, high mechanical strength and an enhanced electrochemical stability window of up to 2.5 V (vs. Zn/Zn2+). The hybrid electrolyte demonstrates impressive viability and versatility, enabling compatibility with various cathode materials for use in both aqueous Na–Zn hybrid batteries and Zn-ion batteries. Notably, when paired with a Prussian blue cathode, the assembled hybrid batteries show remarkable cyclability, enduring over 6000 cycles with a minimal capacity decay of only 0.0096% per cycle at a high current density of 25 C. Additionally, the Zn||Na2MnFe(CN)6 full battery using the synthesized hydrogel electrolyte achieves a high energy density of approximately 220 Wh kg−1 and outstanding rate performance reaching up to 5 C. This research provides important insights for designing aqueous hybrid electrolytes that combine both high ionic conductivity and an expansive electrochemical stability window.https://www.sciopen.com/article/10.26599/EMD.2024.9370050electrochemistrysodium–zinc hybrid ion batteryhydrogel electrolyteaqueous secondary batteries |
| spellingShingle | Debin Kong Xinru Wei Jinshu Yue Changzhi Ji Jianhang Yang Guanzhong Ma Xia Hu Wenting Feng Changming Mao Zhongtao Li Linjie Zhi Advanced high-voltage and super-stable sodium–zinc hybrid ion batteries enabled by a hydrogel electrolyte Energy Materials and Devices electrochemistry sodium–zinc hybrid ion battery hydrogel electrolyte aqueous secondary batteries |
| title | Advanced high-voltage and super-stable sodium–zinc hybrid ion batteries enabled by a hydrogel electrolyte |
| title_full | Advanced high-voltage and super-stable sodium–zinc hybrid ion batteries enabled by a hydrogel electrolyte |
| title_fullStr | Advanced high-voltage and super-stable sodium–zinc hybrid ion batteries enabled by a hydrogel electrolyte |
| title_full_unstemmed | Advanced high-voltage and super-stable sodium–zinc hybrid ion batteries enabled by a hydrogel electrolyte |
| title_short | Advanced high-voltage and super-stable sodium–zinc hybrid ion batteries enabled by a hydrogel electrolyte |
| title_sort | advanced high voltage and super stable sodium zinc hybrid ion batteries enabled by a hydrogel electrolyte |
| topic | electrochemistry sodium–zinc hybrid ion battery hydrogel electrolyte aqueous secondary batteries |
| url | https://www.sciopen.com/article/10.26599/EMD.2024.9370050 |
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