Version 1
: Received: 16 July 2019 / Approved: 17 July 2019 / Online: 17 July 2019 (10:18:44 CEST)
Version 2
: Received: 15 September 2019 / Approved: 17 September 2019 / Online: 17 September 2019 (12:19:49 CEST)
How to cite:
Liang, Z.; Zhao, Y.; Yang, S. Core-Shell Nanofiber Containing Large Amount of Flame Retardants via Coaxial Dual-Nozzle Electrospinning as Battery Separators. Preprints2019, 2019070201. https://doi.org/10.20944/preprints201907.0201.v1
Liang, Z.; Zhao, Y.; Yang, S. Core-Shell Nanofiber Containing Large Amount of Flame Retardants via Coaxial Dual-Nozzle Electrospinning as Battery Separators. Preprints 2019, 2019070201. https://doi.org/10.20944/preprints201907.0201.v1
Liang, Z.; Zhao, Y.; Yang, S. Core-Shell Nanofiber Containing Large Amount of Flame Retardants via Coaxial Dual-Nozzle Electrospinning as Battery Separators. Preprints2019, 2019070201. https://doi.org/10.20944/preprints201907.0201.v1
APA Style
Liang, Z., Zhao, Y., & Yang, S. (2019). Core-Shell Nanofiber Containing Large Amount of Flame Retardants via Coaxial Dual-Nozzle Electrospinning as Battery Separators. Preprints. https://doi.org/10.20944/preprints201907.0201.v1
Chicago/Turabian Style
Liang, Z., Yun Zhao and Shaobin Yang. 2019 "Core-Shell Nanofiber Containing Large Amount of Flame Retardants via Coaxial Dual-Nozzle Electrospinning as Battery Separators" Preprints. https://doi.org/10.20944/preprints201907.0201.v1
Abstract
Li-ion batteries have attracted enormous interests recently as promising power sources. However, the safety issue associated with the employment of highly flammable liquid electrolyte impedes the further development of next-generation Li-ion batteries. Recently, researchers reported the use of electrospun core-shell fiber as the battery separator consisting of polymer layer as protective shell and flame retardants loaded inside as core. In case of a typical battery shorting, the protective polymer shell melts during thermal-runaway and the flame retardants inside would be released to suppress the combustion of the electrolyte. Due to the use of a single precursor solution for electrospinning containing both polymer and flame retardants, the weight ratio of flame retardants is limited and dependent. Herein, we developed a dual-nozzle, coaxial electrospinning approach to fabricate the core-shell nanofiber with a greatly enhanced flame retardants weight percentage in the final fibers. The weight ratio of flame retardants of triphenyl phosphate in the final composite reaches over 60 wt.%. The LiFePO4-based cell using this composite nanofiber as battery separator exhibits excellent flame-retardant property without compromising the cycling stability or rate performances. In addition, this functional nanofiber can also be coated onto commercial separators instead of being used directly as separators.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.