Open AccessRecent Progress in Designing Stable Composite Lithium Anodes with Improved Wettability
Author(s) -
Zheng ZiJian,
Ye Huan,
Guo ZaiPing
Publication year - 2020
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.202002212
Subject(s) - anode , composite number , materials science , battery (electricity) , lithium (medication) , wetting , electrolyte , lithium metal , nanotechnology , cathode , process engineering , composite material , chemistry , electrical engineering , engineering , electrode , medicine , power (physics) , physics , quantum mechanics , endocrinology
Lithium (Li) is a promising battery anode because of its high theoretical capacity and low reduction potential, but safety hazards that arise from its continuous dendrite growth and huge volume changes limit its practical applications. Li can be hosted in a framework material to address these key issues, but methods to encage Li inside scaffolds remain challenging. The melt infusion of molten Li into substrates has attracted enormous attention in both academia and industry because it provides an industrially adoptable technology capable of fabricating composite Li anodes. In this review, the wetting mechanism driving the spread of liquefied Li toward a substrate is discussed. Following this, various strategies are proposed to engineer stable Li metal composite anodes that are suitable for liquid and solid‐state electrolytes. A general conclusion and a perspective on the current limitations and possible future research directions for constructing composite Li anodes for high‐energy lithium metal batteries are presented.