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Xu M, Dou H, Zhang Z, Zheng Y, Ren B, Ma Q, Wen G, Luo D, Yu A, Zhang L, Wang X, Chen Z. Hierarchically Nanostructured Solid-State Electrolyte for Flexible Rechargeable Zinc-Air Batteries. Angew Chem Int Ed Engl 2022; 61:e202117703. [PMID: 35233896 DOI: 10.1002/anie.202117703] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Indexed: 11/07/2022]
Abstract
The construction of safe and environmentally-benign solid-state electrolytes (SSEs) with intrinsic hydroxide ion-conduction for flexible zinc-air batteries is highly desirable yet extremely challenging. Herein, hierarchically nanostructured CCNF-PDIL SSEs with reinforced concrete architecture are constructed by nanoconfined polymerization of dual-cation ionic liquid (PDIL, concrete) within a robust three-dimensional porous cationic cellulose nanofiber matrix (CCNF, reinforcing steel), where plenty of penetrating ion-conductive channels are formed and undergo dynamic self-rearrangement under different hydrated levels. The CCNF-PDIL SSEs synchronously exhibit good flexibility, mechanical robustness, superhigh ion conductivity of 286.5 mS cm-1 , and decent water uptake. The resultant flexible solid-state zinc-air batteries deliver a high-power density of 135 mW cm-2 , a specific capacity of 775 mAh g-1 and an ultralong cycling stability with continuous operation of 240 hours for 720 cycles, far outperforming those of the state-of-the-art solid-state batteries. The marriage of biomaterials with the diversity of ionic liquids creates enormous opportunities to construct advanced SSEs for solid-state batteries.
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Affiliation(s)
- Mi Xu
- South China Academy of Advanced Optoelectronics, School of Information and Optoelectronic Science and Engineering, International Academy of Optoelectronics at Zhaoqing, South China Normal University, Guangzhou, 510006, China.,School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Haozhen Dou
- Department of Chemical Engineering, University of Waterloo, 200 University Ave. W, Waterloo, Ontario, N2L 3G1, Canada
| | - Zhen Zhang
- Department of Chemical Engineering, University of Waterloo, 200 University Ave. W, Waterloo, Ontario, N2L 3G1, Canada
| | - Yun Zheng
- Department of Chemical Engineering, University of Waterloo, 200 University Ave. W, Waterloo, Ontario, N2L 3G1, Canada
| | - Bohua Ren
- Department of Chemical Engineering, University of Waterloo, 200 University Ave. W, Waterloo, Ontario, N2L 3G1, Canada
| | - Qianyi Ma
- Department of Chemical Engineering, University of Waterloo, 200 University Ave. W, Waterloo, Ontario, N2L 3G1, Canada
| | - Guobin Wen
- Department of Chemical Engineering, University of Waterloo, 200 University Ave. W, Waterloo, Ontario, N2L 3G1, Canada
| | - Dan Luo
- South China Academy of Advanced Optoelectronics, School of Information and Optoelectronic Science and Engineering, International Academy of Optoelectronics at Zhaoqing, South China Normal University, Guangzhou, 510006, China
| | - Aiping Yu
- Department of Chemical Engineering, University of Waterloo, 200 University Ave. W, Waterloo, Ontario, N2L 3G1, Canada
| | - Luhong Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Xin Wang
- South China Academy of Advanced Optoelectronics, School of Information and Optoelectronic Science and Engineering, International Academy of Optoelectronics at Zhaoqing, South China Normal University, Guangzhou, 510006, China
| | - Zhongwei Chen
- Department of Chemical Engineering, University of Waterloo, 200 University Ave. W, Waterloo, Ontario, N2L 3G1, Canada
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Niu X, Huan S, Li H, Pan H, Rojas OJ. Transparent films by ionic liquid welding of cellulose nanofibers and polylactide: Enhanced biodegradability in marine environments. J Hazard Mater 2021; 402:124073. [PMID: 33254838 DOI: 10.1016/j.jhazmat.2020.124073] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/14/2020] [Accepted: 09/21/2020] [Indexed: 05/08/2023]
Abstract
We introduce a green and facile method to compatibilize hydrophobic polylactide (PLA) with hydrophilic cellulose nanofibers (CNF) by using ionic liquid ([DBNH][OAc]) welding with a cosolvent system (gamma-valerolactone). Such welding affords strong (230 MPa tensile strength), flexible (13% elongation at break), transparent (>90%) and defect-free CNF/PLA films. The films are biodegradable in marine environments (70% degradation in 7 weeks), facilitating the otherwise slow PLA decomposition. Physical, chemical and structural features of the films before and after welding are compared and factored in the trends observed for degradation in seawater. The results point to the possibility of PLA-based films forming a co-continuous system with nanocellulose to achieve an improved performance. The role of film morphology, hydrophobicity, and crystallinity is discussed to add to the prospects for packaging materials that simultaneously display accelerated degradability in marine environments.
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Affiliation(s)
- Xun Niu
- College of Chemical Engineering, Nanjing Forestry University, 159# Longpan Road, Nanjing 210037, China; Bioproducts Institute, Departments of Chemical and Biological Engineering, Chemistry and Wood Science, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Siqi Huan
- Bioproducts Institute, Departments of Chemical and Biological Engineering, Chemistry and Wood Science, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Haiming Li
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034, China
| | - Hui Pan
- College of Chemical Engineering, Nanjing Forestry University, 159# Longpan Road, Nanjing 210037, China.
| | - Orlando J Rojas
- Bioproducts Institute, Departments of Chemical and Biological Engineering, Chemistry and Wood Science, University of British Columbia, Vancouver, BC V6T 1Z3, Canada; Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo FI-00076, Finland.
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