Jang, Eunji DO VAN DUNG Lee, Seung Hun Lee, Byeong Gwon Lee, Je Seung Il Cho, Won 2024-01-19T08:32:18Z 2024-01-19T08:32:18Z 2023-09-14 2023-10 0013-4686 https://pubs.kist.re.kr/handle/201004/113218 Many severe problems of lithium (Li) metal anode during cyclings, such as dendritic formation, dead Li, volume expansion, and safety issues, hinder practical applications of Li metal batteries (LMB). Ensuring performance stability by a gel polymer electrolyte (GPE), combined with strengthening the Li surface, is considered an effective strategy to solve the problems of the LMB. Herein, a composite of titanium dioxide (TiO2) with multiwall carbon nanotube (MWCNT) acted as artificial solid electrolyte interphase, effectively controlling the Li electrodeposition process and sustaining the structural integrity of the anode. The characteristics of the composite suspension elucidate the vital role of citric acid in the TiO2 surface functionalization, thereby creating effective adsorption with MWCNT, which directly built a new composite. The cycle performance of the TiO2/ MWCNT/Li anode in the GPE-based LMB is evaluated with a high energy density electrode that stably maintains over 200 cycles. The cross-sectional image of the advanced anode shows the ability to rebuild a strong and durable anode structure after many stripping/platting cycles. The advanced anode applied on a thin Li (70 & mu;m) and a medium capacity cathode shows efficiency based on over 580 cycles. English Pergamon Press Ltd. Lithium deposition stability using TiO2/MWCNT as artificial solid-electrolyte interphases in gel polymer electrolytes based lithium metal batteries Article 10.1016/j.electacta.2023.142850 1 Electrochimica Acta, v.464 Electrochimica Acta 464 N scie scopus 001054832900001 2-s2.0-85165377644 Electrochemistry Electrochemistry Article LI-ION BATTERIES TIO2 SINGLE ANODES DESIGN ASEI TiO2 MWCNT Lithium metal batteries Gel polymer electrolytes