Lightweight 3D Lithiophilic Graphene Aerogel Current Collectors for Lithium Metal Anodes
Constructing three-dimensional (3D) current collectors is an effective strategy to solve the hindrance of the development of lithium metal anodes (LMAs). However, the excessive mass of the metallic scaffold structure leads to a decrease in energy density. Herein, lithiophilic graphene aerogels compr...
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| Veröffentlicht in: | Materials 2024-04, Vol.17 (7), p.1693 |
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| creator | Guo, Caili Ge, Yongjie Qing, Piao Jin, Yunke Chen, Libao Mei, Lin |
| description | Constructing three-dimensional (3D) current collectors is an effective strategy to solve the hindrance of the development of lithium metal anodes (LMAs). However, the excessive mass of the metallic scaffold structure leads to a decrease in energy density. Herein, lithiophilic graphene aerogels comprising reduced graphene oxide aerogels and silver nanowires (rGO-AgNW) are synthesized through chemical reduction and freeze-drying techniques. The rGO aerogels with large specific surface areas effectively mitigate local current density and delay the formation of lithium dendrites, and the lithiophilic silver nanowires can provide sites for the uniform deposition of lithium. The rGO-AgNW/Li symmetric cell presents a stable cycle of about 2000 h at 1 mA cm
. When coupled with the LiFePO
cathode, the assembled full cells exhibit outstanding cycle stability and rate performance. Lightweight rGO-AgNW aerogels, as the host for lithium metal, can significantly improve the energy density of lithium metal anodes. |
| doi_str_mv | 10.3390/ma17071693 |
| format | Article |
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. When coupled with the LiFePO
cathode, the assembled full cells exhibit outstanding cycle stability and rate performance. Lightweight rGO-AgNW aerogels, as the host for lithium metal, can significantly improve the energy density of lithium metal anodes.</description><subject>Aerogels</subject><subject>Aluminum</subject><subject>Anodes</subject><subject>Batteries</subject><subject>Carbon</subject><subject>Chemical reduction</subject><subject>Chemical synthesis</subject><subject>Collectors</subject><subject>Electrodes</subject><subject>Electrolytes</subject><subject>Energy</subject><subject>Graphene</subject><subject>Graphite</subject><subject>Hydrogels</subject><subject>Lightweight</subject><subject>Lithium</subject><subject>Local current</subject><subject>Nanowires</subject><subject>Radiation</subject><subject>Silver</subject><subject>Spectrum analysis</subject><issn>1996-1944</issn><issn>1996-1944</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkUtLAzEUhYMoVqobf4AE3IhQzWMymSxLfULFjYK7ITNz06ZkJjWZQfz3prQ-MAn3XsJ3wiEHoVNKrjhX5LrVVBJJc8X30BFVKp9QlWX7f-YROolxRdLinBZMHaIRL3LKGMmP0NvcLpb9B2wq5jd4bvul9euldbbG90Gvl9ABnkLwC3B4NoQAXY9n3jmoex8iNj5sRUOLn6DXDk8730A8RgdGuwgnuz5Gr3e3L7OHyfz5_nE2nU_q5L6f1JVRjFIjpAAo0sgNgDLQcFaZRmeUCVmxxgiSTsaoMDlRSlYFqTLJEjZGF9t318G_DxD7srWxBud0B36IJSe8yJiUIk_o-T905YfQJXcbSgqhROpjdLWlFtpBaTvj-6DrtBtobe07MDbdT6UihKr0nUlwuRXUwccYwJTrYFsdPktKyk1G5W9GCT7beRiqFpof9DsR_gX574o0</recordid><startdate>20240407</startdate><enddate>20240407</enddate><creator>Guo, Caili</creator><creator>Ge, Yongjie</creator><creator>Qing, Piao</creator><creator>Jin, Yunke</creator><creator>Chen, Libao</creator><creator>Mei, Lin</creator><general>MDPI AG</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-4901-3032</orcidid></search><sort><creationdate>20240407</creationdate><title>Lightweight 3D Lithiophilic Graphene Aerogel Current Collectors for Lithium Metal Anodes</title><author>Guo, Caili ; 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However, the excessive mass of the metallic scaffold structure leads to a decrease in energy density. Herein, lithiophilic graphene aerogels comprising reduced graphene oxide aerogels and silver nanowires (rGO-AgNW) are synthesized through chemical reduction and freeze-drying techniques. The rGO aerogels with large specific surface areas effectively mitigate local current density and delay the formation of lithium dendrites, and the lithiophilic silver nanowires can provide sites for the uniform deposition of lithium. The rGO-AgNW/Li symmetric cell presents a stable cycle of about 2000 h at 1 mA cm
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| subjects | Aerogels Aluminum Anodes Batteries Carbon Chemical reduction Chemical synthesis Collectors Electrodes Electrolytes Energy Graphene Graphite Hydrogels Lightweight Lithium Local current Nanowires Radiation Silver Spectrum analysis |
| title | Lightweight 3D Lithiophilic Graphene Aerogel Current Collectors for Lithium Metal Anodes |
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