Interfacial friction enabling ≤ 20 μm thin free-standing lithium strips for lithium metal batteries
Abstract A practical high-specific-energy Li metal battery requires thin (≤20 μm) and free-standing Li metal anodes, but the low melting point and strong diffusion creep of lithium metal impede their scalable processing towards thin-thickness and free-standing architecture. In this paper, thin (5 to...
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Nature Portfolio
2023-09-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-41514-0 |
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| author | Shaozhen Huang Zhibin Wu Bernt Johannessen Kecheng Long Piao Qing Pan He Xiaobo Ji Weifeng Wei Yuejiao Chen Libao Chen |
| author_facet | Shaozhen Huang Zhibin Wu Bernt Johannessen Kecheng Long Piao Qing Pan He Xiaobo Ji Weifeng Wei Yuejiao Chen Libao Chen |
| author_sort | Shaozhen Huang |
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| description | Abstract A practical high-specific-energy Li metal battery requires thin (≤20 μm) and free-standing Li metal anodes, but the low melting point and strong diffusion creep of lithium metal impede their scalable processing towards thin-thickness and free-standing architecture. In this paper, thin (5 to 50 μm) and free-standing lithium strips were achieved by mechanical rolling, which is determined by the in situ tribochemical reaction between lithium and zinc dialkyldithiophosphate (ZDDP). A friction-induced organic/inorganic hybrid interface (~450 nm) was formed on Li with an ultra-high hardness (0.84 GPa) and Young’s modulus (25.90 GPa), which not only enables the scalable process mechanics of thin lithium strips but also facilitates dendrite-free lithium metal anodes by inhibiting dendrite growth. The rolled lithium anode exhibits a prolonged cycle lifespan and high-rate cycle stability (in excess of more than 1700 cycles even at 18.0 mA cm−2 and 1.5 mA cm−2 at 25 °C). Meanwhile, the LiFePO4 (with single-sided load 10 mg/cm2) ||Li@ZDDP full cell can last over 350 cycles with a high-capacity retention of 82% after the formation cycles at 5 C (1 C = 170 mA/g) and 25 °C. This work provides a scalable approach concerning tribology design for producing practical thin free-standing lithium metal anodes. |
| format | Article |
| id | doaj-art-5bfc7f068e9a4bce9abecd53ca735c74 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2023-09-01 |
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| spelling | doaj-art-5bfc7f068e9a4bce9abecd53ca735c742025-01-12T12:29:25ZengNature PortfolioNature Communications2041-17232023-09-0114111110.1038/s41467-023-41514-0Interfacial friction enabling ≤ 20 μm thin free-standing lithium strips for lithium metal batteriesShaozhen Huang0Zhibin Wu1Bernt Johannessen2Kecheng Long3Piao Qing4Pan He5Xiaobo Ji6Weifeng Wei7Yuejiao Chen8Libao Chen9State Key Laboratory of Powder Metallurgy, Central South UniversityState Key Laboratory of Powder Metallurgy, Central South UniversityAustralian Synchrotron, ANSTOState Key Laboratory of Powder Metallurgy, Central South UniversityState Key Laboratory of Powder Metallurgy, Central South UniversityState Key Laboratory of Powder Metallurgy, Central South UniversityState Key Laboratory of Powder Metallurgy, Central South UniversityState Key Laboratory of Powder Metallurgy, Central South UniversityState Key Laboratory of Powder Metallurgy, Central South UniversityState Key Laboratory of Powder Metallurgy, Central South UniversityAbstract A practical high-specific-energy Li metal battery requires thin (≤20 μm) and free-standing Li metal anodes, but the low melting point and strong diffusion creep of lithium metal impede their scalable processing towards thin-thickness and free-standing architecture. In this paper, thin (5 to 50 μm) and free-standing lithium strips were achieved by mechanical rolling, which is determined by the in situ tribochemical reaction between lithium and zinc dialkyldithiophosphate (ZDDP). A friction-induced organic/inorganic hybrid interface (~450 nm) was formed on Li with an ultra-high hardness (0.84 GPa) and Young’s modulus (25.90 GPa), which not only enables the scalable process mechanics of thin lithium strips but also facilitates dendrite-free lithium metal anodes by inhibiting dendrite growth. The rolled lithium anode exhibits a prolonged cycle lifespan and high-rate cycle stability (in excess of more than 1700 cycles even at 18.0 mA cm−2 and 1.5 mA cm−2 at 25 °C). Meanwhile, the LiFePO4 (with single-sided load 10 mg/cm2) ||Li@ZDDP full cell can last over 350 cycles with a high-capacity retention of 82% after the formation cycles at 5 C (1 C = 170 mA/g) and 25 °C. This work provides a scalable approach concerning tribology design for producing practical thin free-standing lithium metal anodes.https://doi.org/10.1038/s41467-023-41514-0 |
| spellingShingle | Shaozhen Huang Zhibin Wu Bernt Johannessen Kecheng Long Piao Qing Pan He Xiaobo Ji Weifeng Wei Yuejiao Chen Libao Chen Interfacial friction enabling ≤ 20 μm thin free-standing lithium strips for lithium metal batteries Nature Communications |
| title | Interfacial friction enabling ≤ 20 μm thin free-standing lithium strips for lithium metal batteries |
| title_full | Interfacial friction enabling ≤ 20 μm thin free-standing lithium strips for lithium metal batteries |
| title_fullStr | Interfacial friction enabling ≤ 20 μm thin free-standing lithium strips for lithium metal batteries |
| title_full_unstemmed | Interfacial friction enabling ≤ 20 μm thin free-standing lithium strips for lithium metal batteries |
| title_short | Interfacial friction enabling ≤ 20 μm thin free-standing lithium strips for lithium metal batteries |
| title_sort | interfacial friction enabling ≤ 20 μm thin free standing lithium strips for lithium metal batteries |
| url | https://doi.org/10.1038/s41467-023-41514-0 |
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