Lithium–Metal Batteries: Additive‐Assisted Novel Dual‐Salt Electrolyte Addresses Wide Temperature Operation of Lithium–Metal Batteries (Small 16/2019). Issue 16 (18th April 2019)

• Record Type: Journal Article
• Authors: Shangguan, Xuehui; Xu, Gaojie; Cui, Zili; Wang, Qinglei; Du, Xiaofan; Chen, Kai; Huang, Suqi; Jia, Guofeng; Li, Faqiang; Wang, Xiao; Lu, Di; Dong, Shanmu; Cui, Guanglei
• Is Part Of: Small. Volume 15:Issue 16(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-04-18
• Subjects: additive -- dual‐salt electrolyte -- lithium‐metal battery -- solid electrolyte interphase -- wide temperature operation; Nanotechnology -- Periodicals; Nanoparticles -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1002/smll.201970082
• Languages: English
• ISSNs: 1613-6810

Abstract

Abstract : In article number1900269, Guofeng Jia, Guanglei Cui, and co‐workers combine self‐synthesized lithium trifluoro(perfluoro‐tert‐butyloxyl)borate (LiTFPFB) with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) to formulate a 1m dual‐salt electrolyte, which contains lithium difluorophosphate (LiPO2 F2 ) additive and dominant carbonate solvents with low melting point and high boiling point. This addition dramatically improves cyclability and rate capability of a LiNi0.5 Mn0.3 Co0.2 O2 /Li (NMC/Li) battery, unprecedentedly ranging from −40 °C to 90 °C.