摘要
锂/氟化碳(Li/CFx)电池作为一种具有最高理论比容量(860 mAh/g)和能量密度(2180 Wh/kg)的一次电池,具有高安全性能、低自放电率、平稳的放电电压和环境友好等优点,广泛应用于医疗、军事、电子科技和航空航天等领域.电解液作为Li/CFx电池必不可缺的一部分,在正负极之间起到传递离子的作用,具有重要的研究意义.本文从Li/CFx电池的低温性能、倍率性能以及放电平台等方面综述了Li/CFx电池电解液的研究进展;重点阐述了电解液理化性质、界面浸润与相容、锂离子溶剂化结构、C—F键活化和LiF形成与溶解等因素对Li/CFx电池放电性能的影响;最后,对Li/CFx电池新型电解液的研究提出了思考与展望.
Abstract
Li/CFx battery,a primary battery with the highest theoretical specific capacity and energy density,has the advantages of high safety performance,low self-discharge rate,stable discharge voltage,and eco-friendliness and is widely used in the medical,military,electronic technology,aerospace,and other fields.Electrolyte,an indispensable component of Li/CFx battery,plays a pivotal role in transferring ions between the anode and cathode;it has important research significance.In this review,we summarize the research progress on electrolytes for Li/CFx batteries,especially emphasizing the relationships between electrolyte factors,such as the physicochemical properties of electrolytes,interface wettability and compatibility,lithium-ion solvation structure,C—F bond activation,LiF formation,and dissolution,and the electrochemical performance of Li/CFx batteries,such as low-temperature performance,high-rate performance,and discharge voltage platform.Finally,future research directions for Li/CFx battery electrolytes are discussed.
基金项目
湖南省普通高等学校青年骨干教师培养项目(H22105)
湖南省自然科学基金(2024JJ80)
岳麓山工业创新中心项目(2023YCII0108)
国家科技期刊平台
NSTL
万方数据