In situ polymerized poly(1,3-dioxolane) in polyacrylonitrile porous scaffolds: A novel composite polymer electrolyte for room temperature battery application

IF 5.4 Q2 CHEMISTRY, PHYSICAL Journal of Power Sources Advances Pub Date : 2024-02-09 DOI:10.1016/j.powera.2024.100140
Nicolò Albanelli , Francesco Capodarca , Michele Zanoni , Giampaolo Lacarbonara , Maria Letizia Focarete , Chiara Gualandi , Catia Arbizzani
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Abstract

The need for high-energy and safe batteries is more and more urgent, and a possible approach is to use solid polymer electrolyte with high conductivity combined with lithium metal anode. Poly (1,3-dioxolane)-based electrolytes are promising, and the feasibility to polymerize 1,3-dioxolane (DOL) in situ makes this approach very attractive. In this paper, we present the in situ electro-initiated polymerization of DOL in polyacrylonitrile nanofibrous mats, without using initiator or crosslinking agents. The amount of monomer loaded in the porous scaffold, the electrochemical technique used to initiate the polymerization and the salt amount were investigated as important parameters that affect the ion conductivity and the performance of the obtained polymer electrolyte. Particular attention was directed towards minimizing the presence of residual monomer in the resulting polymer, with the aim of progressing towards the development of a real solid-state polymer electrolyte. The results of the thermal, morphological, and electrochemical characterization are reported and discussed.

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聚丙烯腈多孔支架中的原位聚合聚(1,3-二氧戊环):用于室温电池的新型复合聚合物电解质
人们对高能量和安全电池的需求越来越迫切,一种可行的方法是使用具有高导电性的固体聚合物电解质与锂金属阳极相结合。基于聚(1,3-二氧戊环)的电解质前景广阔,而原位聚合 1,3-二氧戊环(DOL)的可行性使这种方法极具吸引力。本文介绍了在不使用引发剂或交联剂的情况下,在聚丙烯腈纳米纤维垫中原位电引发聚合 DOL 的方法。多孔支架中的单体负载量、用于引发聚合的电化学技术以及盐量都是影响离子传导性和所获聚合物电解质性能的重要参数。研究人员特别关注如何最大限度地减少聚合物中残留单体的存在,以期在开发真正的固态聚合物电解质方面取得进展。报告和讨论了热学、形态学和电化学表征的结果。
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来源期刊
CiteScore
9.10
自引率
0.00%
发文量
18
审稿时长
64 days
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