An ionic-electronic dual-conductive polymer, fabricated by doping polyethylene glycol into polyaniline, is used to modify LiCoO cathodes for solid lithium batteries. The polymer enables uniform and fast conductive networks in cathodes and stabilizes the generation of cathode interface layers. The cell maintains high cycle stability of 91.8% capacity retention after 200 cycles.
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http://dx.doi.org/10.1039/d2cc02598a | DOI Listing |
J Am Chem Soc
January 2025
Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-393 Aveiro, Portugal.
Mixed ionic-electronic conductors have great potential as materials for energy storage applications. However, despite their promising properties, only a handful of metal-organic frameworks (MOFs) provide efficient pathways for both ion and electron transport. This work reports a proton-electron dual-conductive MOF based on tetrathiafulvalene(TTF)-phosphonate linkers and lanthanum ions.
View Article and Find Full Text PDFAdv Mater
August 2024
State Key Laboratory for Mechanical Behavior of Materials, Shaanxi International Research Center for Soft Matter, Xi'an Jiaotong University, Xi'an, 710049, China.
The construction of a continuous ionic/electronic pathway is critical for Si-based sulfide all-solid-state batteries (ASSBs) with the advantages of high-energy density and high-cycle stability. However, a significant impediment arises from the parasitic reaction occurring between the ionic sulfide solid-state electrolyte and electronic carbon additive, posing a formidable challenge. Additionally, the fabrication of electrodes necessitates stringent operational conditions, further limiting practical applicability.
View Article and Find Full Text PDFAdv Sci (Weinh)
January 2024
School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
Epidermal dry electrodes with high skin-compliant stretchability, low bioelectric interfacial impedance, and long-term reliability are crucial for biopotential signal recording and human-machine interaction. However, incorporating these essential characteristics into dry electrodes remains a challenge. Here, a skin-conformal dry electrode is developed by encapsulating kirigami-structured poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/polyvinyl alcohol (PVA)/silver nanowires (Ag NWs) film with ultrathin polyurethane (PU) tape.
View Article and Find Full Text PDFCarbohydr Polym
November 2022
Hubei Engineering Center of Natural Polymers-based Medical Materials, Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, China. Electronic address:
Conductive, wearable, and flexible hydrogel-based sensors are considered as promising applications in human motion detection and physiological signal monitoring. However, it is still a problem to integrate multiple functions into one material for the next-generation smart devices. Herein, we fabricated an ionic/electronic dual conductive hydrogel by combining the chemically crosslinked polyacrylamide (PAM) and the physically crosslinked carboxymethyl chitosan-grafted-polyaniline (CMCS-g-PANI)/Ag network.
View Article and Find Full Text PDFChem Commun (Camb)
August 2022
College of Physics, Qingdao University, Ningxia Road, Qingdao, 266071, P. R. China.
An ionic-electronic dual-conductive polymer, fabricated by doping polyethylene glycol into polyaniline, is used to modify LiCoO cathodes for solid lithium batteries. The polymer enables uniform and fast conductive networks in cathodes and stabilizes the generation of cathode interface layers. The cell maintains high cycle stability of 91.
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