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高负载硫正极功能性黏结剂研究进展
Authors
Rashid Arif
张力
+3 more
张桥保
晏成林
李莎
Publication date
20 November 2019
Publisher
Abstract
锂硫电池是高能量密度二次电池的重要体系.但硫材料固有的绝缘属性以及硫正极在电化学循环中特殊的"固-液-固"反应历程,易导致材料利用率低、极化严重、溶解性多硫化锂"穿梭"以及剧烈体积变化等负面影响,造成高负载硫正极性能发挥和稳定循环的极大困难.近年来,作为非活性组分的黏结剂在锂硫电池中被赋予了丰富的功能,如有效捕捉溶解性多硫化锂以及维持电极/导电结构长期循环稳定性等,极大地推动了高负载硫正极的发展.本文从高负载硫正极用黏结剂的关键作用、研究现状、作用机制原位解析、现存挑战以及未来发展方向等方面,重点归纳和阐述近年来高负载硫正极用功能性黏结剂的重要研究进展.国家自然科学基金(21875155,51872193,51675275)资
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Last time updated on 20/11/2020