Hierarchical Li electrochemistry using alloy-type anode for high-energy-density Li metal batteries
Abstract Exploiting thin Li metal anode is essential for high-energy-density battery, but is severely plagued by the poor processability of Li, as well as the uncontrollable Li plating/stripping behaviors and Li/electrolyte interface. Herein, a thickness/capacity-adjustable thin alloy-type Li/LiZn@C...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-45613-4 |
| _version_ | 1797273991581270016 |
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| author | Jiaqi Cao Yuansheng Shi Aosong Gao Guangyuan Du Muhtar Dilxat Yongfei Zhang Mohang Cai Guoyu Qian Xueyi Lu Fangyan Xie Yang Sun Xia Lu |
| author_facet | Jiaqi Cao Yuansheng Shi Aosong Gao Guangyuan Du Muhtar Dilxat Yongfei Zhang Mohang Cai Guoyu Qian Xueyi Lu Fangyan Xie Yang Sun Xia Lu |
| author_sort | Jiaqi Cao |
| collection | DOAJ |
| description | Abstract Exploiting thin Li metal anode is essential for high-energy-density battery, but is severely plagued by the poor processability of Li, as well as the uncontrollable Li plating/stripping behaviors and Li/electrolyte interface. Herein, a thickness/capacity-adjustable thin alloy-type Li/LiZn@Cu anode is fabricated for high-energy-density Li metal batteries. The as-formed lithophilic LiZn alloy in Li/LiZn@Cu anode can effectively regulate Li plating/stripping and stabilize the Li/electrolyte interface to deliver the hierarchical Li electrochemistry. Upon charging, the Li/LiZn@Cu anode firstly acts as Li source for homogeneous Li extraction. At the end of charging, the de-alloy of LiZn nanostructures further supplements the Li extraction, actually playing the Li compensation role in battery cycling. While upon discharging, the LiZn alloy forms just at the beginning, thereby regulating the following Li homogeneous deposition. The reversibility of such an interesting process is undoubtedly verified from the electrochemistry and in-situ XRD characterization. This work sheds light on the facile fabrication of practical Li metal anodes and useful Li compensation materials for high-energy-density Li metal batteries. |
| first_indexed | 2024-03-07T14:52:03Z |
| format | Article |
| id | doaj.art-ed6e1d3c2b6e4e7da2fb0912d9dc901d |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-07T14:52:03Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-ed6e1d3c2b6e4e7da2fb0912d9dc901d2024-03-05T19:39:58ZengNature PortfolioNature Communications2041-17232024-02-0115111310.1038/s41467-024-45613-4Hierarchical Li electrochemistry using alloy-type anode for high-energy-density Li metal batteriesJiaqi Cao0Yuansheng Shi1Aosong Gao2Guangyuan Du3Muhtar Dilxat4Yongfei Zhang5Mohang Cai6Guoyu Qian7Xueyi Lu8Fangyan Xie9Yang Sun10Xia Lu11School of Materials, Sun Yat-sen UniversitySchool of Materials, Sun Yat-sen UniversityInstrumental Analysis & Research Center, Sun Yat-sen UniversitySchool of Materials, Sun Yat-sen UniversitySchool of Materials, Sun Yat-sen UniversitySchool of Materials, Sun Yat-sen UniversitySchool of Materials, Sun Yat-sen UniversitySchool of Materials, Sun Yat-sen UniversitySchool of Materials, Sun Yat-sen UniversityInstrumental Analysis & Research Center, Sun Yat-sen UniversitySchool of Materials, Sun Yat-sen UniversitySchool of Materials, Sun Yat-sen UniversityAbstract Exploiting thin Li metal anode is essential for high-energy-density battery, but is severely plagued by the poor processability of Li, as well as the uncontrollable Li plating/stripping behaviors and Li/electrolyte interface. Herein, a thickness/capacity-adjustable thin alloy-type Li/LiZn@Cu anode is fabricated for high-energy-density Li metal batteries. The as-formed lithophilic LiZn alloy in Li/LiZn@Cu anode can effectively regulate Li plating/stripping and stabilize the Li/electrolyte interface to deliver the hierarchical Li electrochemistry. Upon charging, the Li/LiZn@Cu anode firstly acts as Li source for homogeneous Li extraction. At the end of charging, the de-alloy of LiZn nanostructures further supplements the Li extraction, actually playing the Li compensation role in battery cycling. While upon discharging, the LiZn alloy forms just at the beginning, thereby regulating the following Li homogeneous deposition. The reversibility of such an interesting process is undoubtedly verified from the electrochemistry and in-situ XRD characterization. This work sheds light on the facile fabrication of practical Li metal anodes and useful Li compensation materials for high-energy-density Li metal batteries.https://doi.org/10.1038/s41467-024-45613-4 |
| spellingShingle | Jiaqi Cao Yuansheng Shi Aosong Gao Guangyuan Du Muhtar Dilxat Yongfei Zhang Mohang Cai Guoyu Qian Xueyi Lu Fangyan Xie Yang Sun Xia Lu Hierarchical Li electrochemistry using alloy-type anode for high-energy-density Li metal batteries Nature Communications |
| title | Hierarchical Li electrochemistry using alloy-type anode for high-energy-density Li metal batteries |
| title_full | Hierarchical Li electrochemistry using alloy-type anode for high-energy-density Li metal batteries |
| title_fullStr | Hierarchical Li electrochemistry using alloy-type anode for high-energy-density Li metal batteries |
| title_full_unstemmed | Hierarchical Li electrochemistry using alloy-type anode for high-energy-density Li metal batteries |
| title_short | Hierarchical Li electrochemistry using alloy-type anode for high-energy-density Li metal batteries |
| title_sort | hierarchical li electrochemistry using alloy type anode for high energy density li metal batteries |
| url | https://doi.org/10.1038/s41467-024-45613-4 |
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