Dual polymer engineering enables high-performance 3D printed Zn-organic battery cathodes

Wanli Gao, Christian Iffelsberger, Martin Pumera

Research output: Contribution to journalArticlepeer-review

Abstract

Fused deposition modeling (FDM) 3D-printed one-dimensional (1D) carbon materials show great potential as skeletons for newly emerged aqueous Zn-organic batteries due to their well-entangled conductive networks and design flexibility in on-demand fabrication. However, (i) the insulating character of commonly used thermoplastic polymers in FDM 3D printing and (ii) the incompatibility between organic cathodes and cost-efficient aqueous mild electrolytes present a stumbling block for the current development of FDM 3D-printed Zn-organic batteries. Targeting these two aspects, this work proposes a dual-polymer-engineered cathode for high-performance Zn2+ storage. The engineering consists of (i) a crystallinity engineering of insulating poly(lactic acid) (PLA) in 3D-printed carbon frameworks to confine the nanocarbon accommodation space to form a more compact conductive network, and (ii) a protonation engineering of polyaniline (PANI) by in situ introduction of polyacrylic acid (PAA) during electrodeposition process to construct an internal proton reservoir for reversible redox reactions of PANI. Such dual-polymer-engineered cathode (3D@PANI-PAA) presents a reversible capacity of 214.6 mAh g−1 at 0.4 A g−1, good rate performance (117.2 mAh g−1 at 3.2 A g−1), and much improved cycling stability over 1000 cycles (78.1% capacity retention). This combined approach delivers new concepts to construct reliable aqueous Zn-organic batteries and enlarges the FDM 3D printing for electrochemical energy storage applications.

Original languageEnglish
Article number101515
JournalApplied Materials Today
Volume28
DOIs
Publication statusPublished - 2022 Aug

Bibliographical note

Funding Information:
W. G. acknowledges support by the ESF under the project CZ.02.2.69/0.0/0.0/20_079/0017436. C. I. acknowledges the support by the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement No. 888797. M. P. thanks Grant Agency of the Czech Republic (GACR EXPRO: 19-26896X). Material characterizations were carried out with the support of CzechNanoLab Research Infrastructure (ID LM2018110, MEYS CR, 2020-2022). The authors gratefully thank Dr. Soňa Hermanová for DSC measurements and analyses.

Funding Information:
W. G. acknowledges support by the ESF under the project CZ.02.2.69/0.0/0.0/20_079/0017436. C. I. acknowledges the support by the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement No. 888797. M. P. thanks Grant Agency of the Czech Republic (GACR EXPRO: 19-26896X). Material characterizations were carried out with the support of CzechNanoLab Research Infrastructure (ID LM2018110, MEYS CR, 2020-2022). The authors gratefully thank Dr. Soňa Hermanová for DSC measurements and analyses.

Publisher Copyright:
© 2022 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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