journal article·2024-04

Hyphae Carbon Coupled with Gel Composite Assembly for Construction of Advanced Carbon/Sulfur Cathodes for Lithium–Sulfur Batteries

By Lei Huang, Haomiao Zhang, Zhong Qiu, Ping Liu, Feng Cao, Xinping He, Yang Xia, Xinqi Liang, Chen Wang, Wangjun Wan, Yongqi Zhang, Minghua Chen, Xinhui Xia, Wenkui Zhang, Jiancang Zhou

Small· Volume 20· Issue 16
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Abstract

Abstract The design and fabrication of novel carbon hosts with high conductivity, accelerated electrochemical catalytic activities, and superior physical/chemical confinement on sulfur and its reaction intermediates polysulfides are essential for the construction of high‐performance C/S cathodes for lithium–sulfur batteries (LSBs). In this work, a novel biofermentation coupled gel composite assembly technology is developed to prepare cross‐linked carbon composite hosts consisting of conductive Rhizopus hyphae carbon fiber (RHCF) skeleton and lamellar sodium alginate carbon (SAC) uniformly implanted with polarized nanoparticles (V2O3, Ag, Co, etc.) with diameters of several nanometers. Impressively, the RHCF/SAC/V2O3 composites exhibit enhanced physical/chemical adsorption of polysulfides due to the synergistic effect between hierarchical pore structures, heteroatoms (N, P) doping, and polar V2O3 generation. Additionally, the catalytic conversion kinetics of cathodes are effectively improved by regulating the 3D carbon structure and optimizing the V2O3 catalyst. Consequently, the LSBs assembled with RHCF/SAC/V2O3‐S cathode show exceptional cycle stability (capacity retention rate of 94.0% after 200 cycles at 0.1 C) and excellent rate performance (specific capacity of 578 mA h g−1 at 5 C). This work opens a new door for the fabrication of hyphae carbon composites via fermentation for electrochemical energy storage.
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Research context

OpenAlex topics: Advanced Battery Materials and Technologies · Advanced battery technologies research · Advancements in Battery Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Critical Care Medicine Sir Run Run Shaw Hospital Zhejiang University School of Medicine Hangzhou 310016 P. R. China

College of Materials Science & Engineering Zhejiang University of Technology Hangzhou 310014 P. R. China

School of Materials Science & Engineering Zhejiang University Hangzhou 310027 P. R. China

Institute of Fundamental and Frontier Science University of Electronic Science and Technology of China Huzhou 313000 P. R. China

Department of Engineering Technology Huzhou College Huzhou 313000 P. R. China

Key Laboratory of Engineering Dielectric and Applications Ministry of Education School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin 150080 P. R. China

Zhejiang Academy of Science and Technology for Inspection & Quarantine Hangzhou Zhejiang 311215 P. R. China

Chongqing Research Institute Harbin Institute of Technology Chongqing 401151 P. R. China

Funding

National Natural Science Foundation of China · Science and Technology Department of Zhejiang Province · Natural Science Foundation of Zhejiang Province · Key Laboratory of Engineering Dielectrics and Its Application (Harbin University of Science and Technology), Ministry of Education · Natural Science Foundation of Tianjin Municipal Science and Technology Commission

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