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Immobilization and Catalytic Conversion of Polysulfide by In-Situ Generated Nickel in Hollow Carbon Fibers for High-Rate Lithium-Sulfur Batteries.
Liu, Ying; Li, Mingxu; Yang, Rong; Meng, Qinglong; Baek, Dong-Ho; Lim, Hyung-Tae; Kim, Jae-Kwang; Ahn, Jou-Hyeon.
Afiliación
  • Liu Y; Cheongju University, Energy Convergence Engineering, 285 Daseong-ro, Cheongju 28503, Republic of Korea, 28503, Cheongju, KOREA, REPUBLIC OF.
  • Li M; Gyeongsang National University, Materials Engineering and Convergence Technology, 501 Jinju-daero, Jinju 52828, Republic of Korea, 52828, Jinju, KOREA, REPUBLIC OF.
  • Yang R; Xi'an University of Science and Technology, Composite and Intelligent Manufacturing Technology, Jinhua Road, Xi'an 710048, People's Republic of China, 710048, Xian, CHINA.
  • Meng Q; Xi'an University of Science and Technology, Composite and Intelligent Manufacturing Technology, Jinhua Road, Xi'an 710048, People's Republic of China, 710048, Xian, CHINA.
  • Baek DH; Gyeongsang National University, Materials Engineering and Convergence Technology, 501 Jinju-daero, Jinju 52828, Republic of Korea, 52828, Jinju, KOREA, REPUBLIC OF.
  • Lim HT; Changwon National University, Materials Convergence System Engineering, Changwon, Gyeongnam 51140, Republic of Korea, 51140, Changwon, KOREA, REPUBLIC OF.
  • Kim JK; Cheongju University, Energy Convergence Engineering, Department of Energy Convergence Engineering, Cheongju University, 28503, Cheongju, KOREA, REPUBLIC OF.
  • Ahn JH; Gyeongsang National University, Chemical Engineering, 501 Jinju-daero, Jinju 52828, Republic of Korea, 52828, Jinju, KOREA, REPUBLIC OF.
ChemSusChem ; : e202401178, 2024 Aug 07.
Article en En | MEDLINE | ID: mdl-39108218
ABSTRACT
Lithium-sulfur (Li-S) batteries are considered promising energy-storage systems because of their high theoretical energy density, low cost, and eco-friendliness. However, problems such as the shuttle effect can result in the loss of active materials, poor cyclability, and rapid capacity degradation. The utilization of a structural configuration that enhances electrochemical performance via dual adsorption-catalysis strategies can overcome the limitations of Li-S batteries. In this study, an integrated interlayer structure, in which hollow carbon fibers (HCFs) were modified with in-situ-generated Ni nanoparticles, was prepared by scalable one-step carbonization. Highly hierarchically porous HCFs act as the carbon skeleton and provide a continuous three-dimensional conductive network that enhances ion/electron diffusion. Ni nanoparticles with superior anchoring and catalytic abilities can prevent the shuttle effect and increase the conversion rate, thereby promoting the electrochemical performance. This synergistic effect resulted in a high capacity retention of 582 mAh g-1 at 1 C after 100 cycles, providing an excellent rate capability of up to 3 C. The novel structure, wherein Ni nanoparticles are embedded in cotton-tissue-derived HCFs, provides a new avenue for enhancing electrochemical performance at high C rates. This results in a low-cost, sustainable, and high-performance hybrid material for the development of practical Li-S batteries.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ChemSusChem Asunto de la revista: QUIMICA / TOXICOLOGIA Año: 2024 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ChemSusChem Asunto de la revista: QUIMICA / TOXICOLOGIA Año: 2024 Tipo del documento: Article Pais de publicación: Alemania