March 14, 2024
(press release)
–
By a News Reporter-Staff News Editor at Chemicals & Chemistry Daily Daily -- Research findings on Chemicals and Chemistry are discussed in a new report. According to news originating from Guangzhou, People’s Republic of China, by NewsRx correspondents, research stated, “The occurrence of an internal short circuit caused by lithium dendrite puncturing the separators is a critical safety issue for lithium batteries. While the investigation of dendrite puncturing resistance of commercial polyolefin separators is well-established, nonwoven separators have received fewer relevant studies.” Financial support for this research came from Fundamental Research Funds for the Central Universities. Our news journalists obtained a quote from the research from the South China University of Technology, “Therefore, we assembled lithium-symmetric cells, lithium-sulfur batteries, and lithium-lithium iron phosphate batteries using three commercial nonwoven separators and a homemade micro-fibrillated cellulose nonwoven separator to verify the ability of the nonwoven separator to resist lithium dendrite penetration. The results reveal that even under low current densities, all four types of nonwoven separators are susceptible to dendrite puncturing, leading to both hard short circuits with significant voltage drops, as well as soft short circuits with charging currents or voltage fluctuations. Moreover, the impedance of lithium-symmetric cells is significantly reduced after short circuit, while the charge transfer resistance of lithium-sulfur batteries increases substantially after short circuit.” According to the news editors, the research concluded: “Our findings provide valuable insights for the development of nonwoven separators for use in lithium metal batteries, highlighting the need for further reduction in pore size.” This research has been peer-reviewed. For more information on this research see: Study On the Lithium Dendrite Puncturing Resistance of Nonwoven Separators. Ionics, 2024. Ionics can be contacted at: Springer Heidelberg, Tiergartenstrasse 17, D-69121 Heidelberg, Germany. (Springer - www.springer.com; Ionics - http://www.springerlink.com/content/0947-7047/) The news correspondents report that additional information may be obtained from Jin Long, South China University of Technology, Sch Light Ind & Engn, Guangzhou 510640, People’s Republic of China. Additional authors for this research include Yao Li, Zhiyuan Xiong, Yun Liang and Jian Hu. The direct object identifier (DOI) for that additional information is: https://doi.org/10.1007/s11581-024-05435-2. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation. (Our reports deliver fact-based news of research and discoveries from around the world.) Copyright © 2024 NewsRx LLC, Chemicals & Chemistry Daily
* All content is copyrighted by Industry Intelligence, or the original respective author or source. You may not recirculate, redistrubte or publish the analysis and presentation included in the service without Industry Intelligence's prior written consent. Please review our terms of use.
