Stretchable energy storage with eutectic gallium indium alloy
The integration of electronics with the human body or wearables necessitates the evolution of energy storage devices capable of seamless adaptation to the conformability of the skin and textiles. This work focuses on developing an intrinsically stretchable electrode prepared by sedimenting the liqui...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/182510 |
| _version_ | 1826127971325313024 |
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| author | Gupta, Adit Al-Shamery, Noah Lv, Jian Thangavel, Gurunathan Park, Jinwoo Mandler, Daniel Lee, Pooi See |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Gupta, Adit Al-Shamery, Noah Lv, Jian Thangavel, Gurunathan Park, Jinwoo Mandler, Daniel Lee, Pooi See |
| author_sort | Gupta, Adit |
| collection | NTU |
| description | The integration of electronics with the human body or wearables necessitates the evolution of energy storage devices capable of seamless adaptation to the conformability of the skin and textiles. This work focuses on developing an intrinsically stretchable electrode prepared by sedimenting the liquid metal particles in a conductive stretchable matrix. The liquid metal-based electrode can be stretched to ≈900% strain, and its conductivity increases by extending to 250% and retaining its initial conductivity at 500% strain. Benefitting from these properties, the assembled all-solid-state energy storage device provides high stretchability of up to 150% strain and a capacity of 0.42 mAh cm−3 at a high coulombic efficiency of 90%. The charge storage mechanism is investigated by probing the electrode/electrolyte interface, uncovering the intricate gallium-bis(trifluoromethane)sulfonimide (Ga-TFSI) complexation during electrochemical cycling through in situ Raman spectroscopy, ex situ X-ray photoelectron spectroscopy (XPS) analyses, and density functional theory (DFT) calculations. This work offers a promising avenue for the advancement of stretchable batteries. |
| first_indexed | 2025-03-09T14:42:24Z |
| format | Journal Article |
| id | ntu-10356/182510 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-03-09T14:42:24Z |
| publishDate | 2025 |
| record_format | dspace |
| spelling | ntu-10356/1825102025-02-07T15:50:21Z Stretchable energy storage with eutectic gallium indium alloy Gupta, Adit Al-Shamery, Noah Lv, Jian Thangavel, Gurunathan Park, Jinwoo Mandler, Daniel Lee, Pooi See School of Materials Science and Engineering Engineering Energy storage Ionic liquid The integration of electronics with the human body or wearables necessitates the evolution of energy storage devices capable of seamless adaptation to the conformability of the skin and textiles. This work focuses on developing an intrinsically stretchable electrode prepared by sedimenting the liquid metal particles in a conductive stretchable matrix. The liquid metal-based electrode can be stretched to ≈900% strain, and its conductivity increases by extending to 250% and retaining its initial conductivity at 500% strain. Benefitting from these properties, the assembled all-solid-state energy storage device provides high stretchability of up to 150% strain and a capacity of 0.42 mAh cm−3 at a high coulombic efficiency of 90%. The charge storage mechanism is investigated by probing the electrode/electrolyte interface, uncovering the intricate gallium-bis(trifluoromethane)sulfonimide (Ga-TFSI) complexation during electrochemical cycling through in situ Raman spectroscopy, ex situ X-ray photoelectron spectroscopy (XPS) analyses, and density functional theory (DFT) calculations. This work offers a promising avenue for the advancement of stretchable batteries. Nanyang Technological University National Research Foundation (NRF) Published version A.G. acknowledges the NTU research scholarship awarded by the Nanyang Technological University. The research was supported by the SGSR project grant from the National Research Foundation, Prime Minister’s Office, Singapore under its Campus of Research Excellence and Technological Enterprise (CREATE) program. 2025-02-05T05:54:31Z 2025-02-05T05:54:31Z 2024 Journal Article Gupta, A., Al-Shamery, N., Lv, J., Thangavel, G., Park, J., Mandler, D. & Lee, P. S. (2024). Stretchable energy storage with eutectic gallium indium alloy. Advanced Energy Materials, 2403760-. https://dx.doi.org/10.1002/aenm.202403760 1614-6832 https://hdl.handle.net/10356/182510 10.1002/aenm.202403760 2-s2.0-85208977861 2403760 en CREATE Advanced Energy Materials © 2024 The Author(s). Advanced Energy Materials published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. application/pdf |
| spellingShingle | Engineering Energy storage Ionic liquid Gupta, Adit Al-Shamery, Noah Lv, Jian Thangavel, Gurunathan Park, Jinwoo Mandler, Daniel Lee, Pooi See Stretchable energy storage with eutectic gallium indium alloy |
| title | Stretchable energy storage with eutectic gallium indium alloy |
| title_full | Stretchable energy storage with eutectic gallium indium alloy |
| title_fullStr | Stretchable energy storage with eutectic gallium indium alloy |
| title_full_unstemmed | Stretchable energy storage with eutectic gallium indium alloy |
| title_short | Stretchable energy storage with eutectic gallium indium alloy |
| title_sort | stretchable energy storage with eutectic gallium indium alloy |
| topic | Engineering Energy storage Ionic liquid |
| url | https://hdl.handle.net/10356/182510 |
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