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Localized high-concentration electrolytes for lithium metal batteries: progress and prospect
《化学科学与工程前沿(英文)》 2023年 第17卷 第10期 页码 1354-1371 doi: 10.1007/s11705-022-2286-4
关键词: high-concentration electrolyte localized high-concentration electrolyte lithium metal battery solid electrolyte interphase dendrite
《能源前沿(英文)》 2023年 第17卷 第1期 页码 43-71 doi: 10.1007/s11708-022-0853-5
关键词: electrolyte lithium-ion low temperature aerospace solid-electrolyte interface
Zhouyu ZHANG, Hao CHEN, Zhenglin HU, Shoubin ZHOU, Lan ZHANG, Jiayan LUO
《能源前沿(英文)》 2022年 第16卷 第5期 页码 706-733 doi: 10.1007/s11708-022-0833-9
关键词: composite solid electrolytes active filler/framework ion conduction path interphase compatibility multilayer design
Recent advances toward high voltage, EC-free electrolytes for graphite-based Li-ion battery
Tong Zhang, Elie Paillard
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 577-591 doi: 10.1007/s11705-018-1758-z
Lithium-ion batteries are a key technology in today’s world and improving their performances requires, in many cases, the use of cathodes operating above the anodic stability of state-of-the-art electrolytes based on ethylene carbonate (EC) mixtures. EC, however, is a crucial component of electrolytes, due to its excellent ability to allow graphite anode operation–also required for high energy density batteries–by stabilizing the electrode/electrolyte interface. In the last years, many alternative electrolytes, aiming at allowing high voltage battery operation, have been proposed. However, often, graphite electrode operation is not well demonstrated in these electrolytes. Thus, we review here the high voltage, EC-free alternative electrolytes, focusing on those allowing the steady operation of graphite anodes. This review covers electrolyte compositions, with the widespread use of additives, the change in main lithium salt, the effect of anion (or Li salt) concentration, but also reports on graphite protection strategies, by coatings or artificial solid electrolyte interphase (SEI) or by use of water-soluble binder for electrode processing as these can also enable the use of graphite in electrolytes with suboptimal intrinsic SEI formation ability.
关键词: lithium-ion electrolyte solid electrolyte interphase additives high voltage graphite
零相频下离子导体的焦耳加热及其电解反应抑制 Letter
石磊, 韩宗益, 冯逸轩, 张长庚, 张祺, 朱贺, 朱世平
《工程(英文)》 2023年 第25卷 第6期 页码 138-143 doi: 10.1016/j.eng.2022.03.004
It is well known that heat is generated when an electric current passes through an electrical conductor. While various applications in our daily lives and industries utilize the heating of electronic conductors, little attention has been paid to the potential of ionic conductors for heating purposes. This is because of the “inevitable” electrochemical reactions, which can result in unwanted electrolysis of conductors, corrosion of electrodes, and surface fouling. This paper reports the Joule heating of ionic conductors without electrochemical reactions. Electricity with a zero-phase frequency is employed to suppress the electrolysis of ionic conductors at high voltages. Demonstrations with various ionic conductors, both liquids and solids, show highly efficient energy conversion free of electrochemical reactions. This heating method is simple, direct, fast, clean, and uniform, and it has great potential in numerous industrial and household applications.
关键词: Joule heating Ionic conductors Electrolytes Zero-phase frequency Electrochemical corrosion
钠超离子导体型固体电解质的改性及其在钠离子电池中的应用 Article
张强强, 周权, 陆雅翔, 邵元骏, 戚钰若, 戚兴国, 钟贵明, 杨勇, 陈立泉, 胡勇胜
《工程(英文)》 2022年 第8卷 第1期 页码 170-180 doi: 10.1016/j.eng.2021.04.028
固体电解质的低离子电导率及固体电解质与固态电极之间较差的界面可靠性是阻碍固态钠电池(SSSB)应用的两大紧迫挑战。本文采用简单的两步固相法合成了名义成分为Na3+2xZr2‒xMgxSi2PO12 的钠(Na)超离子导体(NASICON)型固体电解质,其中在25 ℃时Na3.3Zr1.85Mg0.15Si2PO12(x=0.15, NZSP-Mg0.15)表现出了3.54 mS∙cm‒1的最高离子电导率。通过深入研究,本文证实晶界成分在决定NASICON总离子电导率中起着至关重要的作用。此外,由于文献中缺乏关于NASICON是否能够提供足够的阳极电化学稳定性来实现高压固态钠电池的研究,我们首先使用了高压Na3(VOPO4)2F (NVOPF)正极来验证其与优化后的NZSP-Mg0.15固体电解质之间的兼容性。通过比较不同配置(低压阴极与高压阴极、液态电解质与固体电解质)电池的电化学性能,以及对循环后的NZSP-Mg0.15进行X射线光电子能谱(XPS)评估,结果表明,NASICON固体电解质在高电压下不够稳定,这证明了研究NASICON固体电解质和高压阴极之间界面的重要性。此外,通过将NZSP-Mg0.15 NASICON 粉末涂在聚乙烯(PE)隔膜(PE@NASICON)上,形成了2.42 A∙h 的碳|PE@NASICON|NaNi2/9Cu1/9Fe1/3Mn1/3O2 非水系钠离子电池,其具有出色的循环性能,在2000 周循环后容量保持率为88%,从而证明涂有NASICON型固体电解质的隔膜具有高可靠性。
标题 作者 时间 类型 操作
A review on the development of electrolytes for lithium-based batteries for low temperature applications
期刊论文
Ion conduction path in composite solid electrolytes for lithium metal batteries: from polymer rich to
Zhouyu ZHANG, Hao CHEN, Zhenglin HU, Shoubin ZHOU, Lan ZHANG, Jiayan LUO
期刊论文
Recent advances toward high voltage, EC-free electrolytes for graphite-based Li-ion battery
Tong Zhang, Elie Paillard
期刊论文