Electrospun composite polymer electrolyte for high-performance quasi solid-state lithium metal batteries

• Published in: Ionics Vol. 29; no. 4; pp. 1395 - 1406
• Main Authors: Panneerselvam, Thamayanthi, Rajamani, Arunkumar, Janani, Narayanasamy, Murugan, Ramaswamy, Sivaprakasam, Sivaraman
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.04.2023; Springer Nature B.V
• Subjects: Aluminum; Chemistry; Chemistry and Materials Science; Condensed Matter Physics; Electrochemistry; Energy Storage; Interface stability; Ion currents; Lithium batteries; Lithium ions; Molten salt electrolytes; Optical and Electronic Materials; Original Paper; Polymers; Rechargeable batteries; Renewable and Green Energy; Solid electrolytes; Solid state; Tellurium; Titanium; Electrospun membrane; NASICON; Quasi-solid-state lithium-metal battery; PVdF-HFP
• ISSN: 0947-7047; 1862-0760
• DOI: 10.1007/s11581-023-04905-3

Lithium-ion conducting solid electrolytes has been playing a vital role in designing solid-state lithium batteries to provide a propitious solution for the upcoming generation of energy storage devices that need to store more energy with a high degree of safety. Among different lithium-ion conductors, Li 1.5 Al 0.5 Ti 1.5 (PO 4 ) 3 , a NASICON-type ceramic, has received attraction due to its good air stability and high lithium-ion conductivity. Herein, tellurium incorporated lithium aluminum titanium phosphate (Li 1.3 Al 0.3 Te 0.03 Ti 1.67 (PO 4 ) 3 ) (LATTP) has been prepared by solid-state reaction method. Further, the various amounts of LATTP incorporated electro-spun composite polymer electrolytes are prepared by using poly(vinylidenefluoride-hexafluoropropylene) (PVdF-HFP) polymer. Herein, we observed that 8 wt% of LATTP incorporated PVdF-HFP composite polymer electrolyte (CPE-8) exhibited high ionic conductivity of 1.9 × 10 −3 S cm −1 at 30 °C, and enhanced lithium dendrite suppression and relatively lesser interfacial stability issues. Remarkably, LATTP incorporated CPE-8 shows improved cycling performance over 200 cycles compared to LATTP free (CPE-0).