Modulating Ionic Transport and Interface Chemistry via Surface‐Modified Silica Carrier in Nano Colloid Electrolyte for Stable Cycling of Li‐Metal Batteries (Small 43/2023)

• Published in: Small (Weinheim an der Bergstrasse, Germany) Vol. 19; no. 43
• Main Authors: Lim, Minhong, An, Hyeongguk, Seo, Jiyeon, Lee, Mingyu, Lee, Hyuntae, Kwon, Hyeokjin, Kim, Hee‐Tak, Esken, Daniel, Takata, Ryo, Song, Hyun A, Lee, Hongkyung
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01-10-2023
• Subjects: Additives; Anions; citric acid‐modified SiO2; Functional groups; Li metal batteries; Li+ transference numbers; Metal surfaces; nano colloid electrolytes; Nanomaterials; Nanoparticles; Nanotechnology; Silicon dioxide; solid‐electrolyte interphase reinforcement
• ISSN: 1613-6810; 1613-6829
• DOI: 10.1002/smll.202370360

Li‐Metal Batteries
In article number 2302722, Hongkyung Lee and co‐workers demonstrate Li dendrite suppression and improve cycling stability of Li‐metal batteries (LMBs) using a nano colloid electrolyte with surface‐modified SiO2. Providing many active sites at the SiO2 can regulate the Li+ microenvironment by attracting anions and additives, further granting the intelligent roles in enhancing a Li+ transference number. Moreover, the co‐deposition of SiO2 can deliver anions and additives toward the Li‐metal surface, building a reinforced solid–electrolyte interphase (SEI). Smartly designed functional groups of nanoparticles are crucial for controlling ionic transport and SEI chemistry in LMBs, in addition to selecting nanomaterial bodies.