All-natural charge gradient interface for sustainable seawater zinc batteries
Abstract Paring seawater electrolyte with zinc metal electrode has emerged as one of the most sustainable alternative solutions for offshore stationary energy storages owing to the intrinsic safety, extremely low cost, and unlimited water source. However, it remains a substantial challenge to stabil...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-02-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-56519-0 |
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| author | Wenjie Fan Chunliu Zhu Xingjie Wang Huanlei Wang Yue Zhu Jingwei Chen Weiqian Tian Jingyi Wu Guihua Yu |
| author_facet | Wenjie Fan Chunliu Zhu Xingjie Wang Huanlei Wang Yue Zhu Jingwei Chen Weiqian Tian Jingyi Wu Guihua Yu |
| author_sort | Wenjie Fan |
| collection | DOAJ |
| description | Abstract Paring seawater electrolyte with zinc metal electrode has emerged as one of the most sustainable alternative solutions for offshore stationary energy storages owing to the intrinsic safety, extremely low cost, and unlimited water source. However, it remains a substantial challenge to stabilize zinc metal negative electrode in seawater electrolyte, given the presence of chloride ions and complex cations in seawater. Here, we reveal that chloride pitting initiates negative electrode corrosion and aggravates dendritic deposition, causing rapid battery failure. We then report a charge gradient negative electrode interface design that eliminates chloride-induced corrosion and enables a sustainable zinc plating/stripping performance beyond 1300 h in natural seawater electrolyte at 1 mA cm-2/1 mAh cm-2. The gradually strengthened negative charges formed via diffusion-controlled electrostatic complexation of biomass-derived polysaccharides serve to repel the unfavorable accumulation of chloride ions while simultaneously accelerating the diffusion of zinc ions. The seawater-based Zn | |NaV3O8·7H2O cell delivers an initial areal discharge capacity of 5 mAh cm-2 and operates over 500 cycles at 500 mA g-1. |
| format | Article |
| id | doaj-art-69850c146abd495ebefbf7f7b2df6830 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-69850c146abd495ebefbf7f7b2df68302025-02-02T12:33:33ZengNature PortfolioNature Communications2041-17232025-02-0116111110.1038/s41467-025-56519-0All-natural charge gradient interface for sustainable seawater zinc batteriesWenjie Fan0Chunliu Zhu1Xingjie Wang2Huanlei Wang3Yue Zhu4Jingwei Chen5Weiqian Tian6Jingyi Wu7Guihua Yu8School of Materials Science and Engineering, Ocean University of ChinaSchool of Materials Science and Engineering, Ocean University of ChinaSchool of Materials Science and Engineering, Ocean University of ChinaSchool of Materials Science and Engineering, Ocean University of ChinaSchool of Materials Science and Engineering, Ocean University of ChinaSchool of Materials Science and Engineering, Ocean University of ChinaSchool of Materials Science and Engineering, Ocean University of ChinaSchool of Materials Science and Engineering, Ocean University of ChinaMaterials Science and Engineering Program and Walker Department of Mechanical Engineering, Texas Materials Institute, The University of Texas at AustinAbstract Paring seawater electrolyte with zinc metal electrode has emerged as one of the most sustainable alternative solutions for offshore stationary energy storages owing to the intrinsic safety, extremely low cost, and unlimited water source. However, it remains a substantial challenge to stabilize zinc metal negative electrode in seawater electrolyte, given the presence of chloride ions and complex cations in seawater. Here, we reveal that chloride pitting initiates negative electrode corrosion and aggravates dendritic deposition, causing rapid battery failure. We then report a charge gradient negative electrode interface design that eliminates chloride-induced corrosion and enables a sustainable zinc plating/stripping performance beyond 1300 h in natural seawater electrolyte at 1 mA cm-2/1 mAh cm-2. The gradually strengthened negative charges formed via diffusion-controlled electrostatic complexation of biomass-derived polysaccharides serve to repel the unfavorable accumulation of chloride ions while simultaneously accelerating the diffusion of zinc ions. The seawater-based Zn | |NaV3O8·7H2O cell delivers an initial areal discharge capacity of 5 mAh cm-2 and operates over 500 cycles at 500 mA g-1.https://doi.org/10.1038/s41467-025-56519-0 |
| spellingShingle | Wenjie Fan Chunliu Zhu Xingjie Wang Huanlei Wang Yue Zhu Jingwei Chen Weiqian Tian Jingyi Wu Guihua Yu All-natural charge gradient interface for sustainable seawater zinc batteries Nature Communications |
| title | All-natural charge gradient interface for sustainable seawater zinc batteries |
| title_full | All-natural charge gradient interface for sustainable seawater zinc batteries |
| title_fullStr | All-natural charge gradient interface for sustainable seawater zinc batteries |
| title_full_unstemmed | All-natural charge gradient interface for sustainable seawater zinc batteries |
| title_short | All-natural charge gradient interface for sustainable seawater zinc batteries |
| title_sort | all natural charge gradient interface for sustainable seawater zinc batteries |
| url | https://doi.org/10.1038/s41467-025-56519-0 |
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