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Wang S, Jiang H, Dong Y, Clarkson D, Zhu H, Settens CM, Ren Y, Nguyen T, Han F, Fan W, Kim SY, Zhang J, Xue W, Sandstrom SK, Xu G, Tekoglu E, Li M, Deng S, Liu Q, Greenbaum SG, Ji X, Gao T, Li J. Acid-in-Clay Electrolyte for Wide-Temperature-Range and Long-Cycle Proton Batteries. Adv Mater 2022; 34:e2202063. [PMID: 35443084 DOI: 10.1002/adma.202202063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/30/2022] [Indexed: 06/14/2023]
Abstract
Proton conduction underlies many important electrochemical technologies. A family of new proton electrolytes is reported: acid-in-clay electrolyte (AiCE) prepared by integrating fast proton carriers in a natural phyllosilicate clay network, which can be made into thin-film (tens of micrometers) fluid-impervious membranes. The chosen example systems (sepiolite-phosphoric acid) rank top among the solid proton conductors in terms of proton conductivities (15 mS cm-1 at 25 °C, 0.023 mS cm-1 at -82 °C), electrochemical stability window (3.35 V), and reduced chemical reactivity. A proton battery is assembled using AiCE as the solid electrolyte membrane. Benefitting from the wider electrochemical stability window, reduced corrosivity, and excellent ionic selectivity of AiCE, the two main problems (gassing and cyclability) of proton batteries are successfully solved. This work draws attention to the element cross-over problem in proton batteries and the generic "acid-in-clay" solid electrolyte approach with superfast proton transport, outstanding selectivity, and improved stability for room- to cryogenic-temperature protonic applications.
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Affiliation(s)
- Shitong Wang
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, The University of Utah, Salt Lake City, UT, 84112, USA
| | - Heng Jiang
- Department of Chemistry, Oregon State University, Corvallis, OR, 97331, USA
| | - Yanhao Dong
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - David Clarkson
- Department of Physics and Astronomy, Hunter College, City University of New York, New York, NY, 10065, USA
| | - He Zhu
- Department of Physics, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
| | - Charles M Settens
- Materials Research Laboratory, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Yang Ren
- Department of Physics, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
| | - Thanh Nguyen
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Fei Han
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Weiwei Fan
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - So Yeon Kim
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Jianan Zhang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Weijiang Xue
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Sean K Sandstrom
- Department of Chemistry, Oregon State University, Corvallis, OR, 97331, USA
| | - Guiyin Xu
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Emre Tekoglu
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Mingda Li
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Sili Deng
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Qi Liu
- Department of Physics, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
| | - Steven G Greenbaum
- Department of Physics and Astronomy, Hunter College, City University of New York, New York, NY, 10065, USA
| | - Xiulei Ji
- Department of Chemistry, Oregon State University, Corvallis, OR, 97331, USA
| | - Tao Gao
- Department of Chemical Engineering, The University of Utah, Salt Lake City, UT, 84112, USA
| | - Ju Li
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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