A Photolithographable Electrolyte for Deeply Rechargeable Zn Microbatteries in On-Chip Devices.

Autor: Qu Z; Research Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), TU Chemnitz, 09126, Chemnitz, Germany.; Material Systems for Nanoelectronics, TU Chemnitz, 09107, Chemnitz, Germany., Ma J; Research Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), TU Chemnitz, 09126, Chemnitz, Germany.; Material Systems for Nanoelectronics, TU Chemnitz, 09107, Chemnitz, Germany., Huang Y; Advanced Materials Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guanzhou, 511400, China., Li T; Research Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), TU Chemnitz, 09126, Chemnitz, Germany.; Material Systems for Nanoelectronics, TU Chemnitz, 09107, Chemnitz, Germany., Tang H; Research Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), TU Chemnitz, 09126, Chemnitz, Germany.; Material Systems for Nanoelectronics, TU Chemnitz, 09107, Chemnitz, Germany., Wang X; School of Science, TU Dresden, 01062, Dresden, Germany., Liu S; Sustainable Materials and Chemistry, Department of Wood Technology and Wood-Based Composites, University of Göttingen, 37077, Göttingen, Germany., Zhang K; Sustainable Materials and Chemistry, Department of Wood Technology and Wood-Based Composites, University of Göttingen, 37077, Göttingen, Germany., Lu J; State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing, 100871, China., Karnaushenko DD; Research Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), TU Chemnitz, 09126, Chemnitz, Germany.; Material Systems for Nanoelectronics, TU Chemnitz, 09107, Chemnitz, Germany., Karnaushenko D; Research Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), TU Chemnitz, 09126, Chemnitz, Germany.; Material Systems for Nanoelectronics, TU Chemnitz, 09107, Chemnitz, Germany., Zhu M; Research Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), TU Chemnitz, 09126, Chemnitz, Germany.; Material Systems for Nanoelectronics, TU Chemnitz, 09107, Chemnitz, Germany., Schmidt OG; Research Center for Materials, Architectures, and Integration of Nanomembranes (MAIN), TU Chemnitz, 09126, Chemnitz, Germany.; Material Systems for Nanoelectronics, TU Chemnitz, 09107, Chemnitz, Germany.; School of Science, TU Dresden, 01062, Dresden, Germany.
Jazyk: angličtina
Zdroj: Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2024 Apr; Vol. 36 (15), pp. e2310667. Date of Electronic Publication: 2024 Jan 23.
DOI: 10.1002/adma.202310667
Abstrakt: Zn batteries show promise for microscale applications due to their compatibility with air fabrication but face challenges like dendrite growth and chemical corrosion, especially at the microscale. Despite previous attempts in electrolyte engineering, achieving successful patterning of electrolyte microscale devices has remained challenging. Here, successful patterning using photolithography is enabled by incorporating caffeine into a UV-crosslinked polyacrylamide hydrogel electrolyte. Caffeine passivates the Zn anode, preventing chemical corrosion, while its coordination with Zn 2+ ions forms a Zn 2+ -conducting complex that transforms into ZnCO 3 and 2ZnCO 3 ·3Zn(OH) 2 over cycling. The resulting Zn-rich interphase product significantly enhances Zn reversibility. In on-chip microbatteries, the resulting solid-electrolyte interphase allows the Zn||MnO 2 full cell to cycle for over 700 cycles with an 80% depth of discharge. Integrating the photolithographable electrolyte into multilayer microfabrication creates a microbattery with a 3D Swiss-roll structure that occupies a footprint of 0.136 mm 2 . This tiny microbattery retains 75% of its capacity (350 µAh cm -2 ) for 200 cycles at a remarkable 90% depth of discharge. The findings offer a promising solution for enhancing the performance of Zn microbatteries, particularly for on-chip microscale devices, and have significant implications for the advancement of autonomous microscale devices.
(© 2024 The Authors. Advanced Materials published by Wiley‐VCH GmbH.)
Databáze: MEDLINE
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