Year: 2020
Type: article
Abstract: Rechargeable lithium metal anode (LMA) based batteries have attracted great attention as next-generation high-energy-density storage systems to fuel the extensive practical applications in portable electronics and electric vehicles. However, the formation of unstable solid-electrolyte- interphase (SEI) and growth of lithium dendrite during plating/stripping cycles stimulate safety concern, poor coulombic efficiency (CE), and short lifespan of the lithium metal batteries (LMBs). To address these issues, the rational design of micro/nanostructured Li hosts are widely adopted in LMBs. The high surface area of the interconnected conductive framework can homogenize the Li-ion flux distribution, lower the effective current density, and provides sufficient space for Li accommodation. However, the poor lithiophilicity of the micro/nanostructure host cannot govern the initial lithium nucleation, which leads to the non-uniform/dendritic Li deposition and unstable SEI formation. As a result, the nucleation overpotential and voltage hysteresis increases, which eventually leads to poor battery cycling performance. Thus, it is imperative to decorate a micro/nanostructured Li host with lithiophilic coatings or seeds for serving as a homogeneous nucleation site to guide the uniform lithium deposition. In this review, we summarize research progress on porous metal and non-metal based lithiophilic micro/nanostructured Li hosts. We present the synthesis, structural properties, and the significance of lithiophilic decorated micro/nanostructured Li host in the LMBs. Finally, the perspectives and critical challenges needed to address for the further improvement of LMBs are concluded.
Source: Applied Sciences
DOI: 10.3390/app10124185
Authors: Rajesh Pathak, Yue Zhou, Qiquan Qiao
Institution: South Dakota State University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,901
Awards: G5333042229, THE OBJECTIVE OF THIS PROJECT IS TO DEVELOP THE NECESSARY RESEARCH BASE THAT WILL ENABLE PRINTABLE SPACECRAFT TO BECOME A REALITY. PRINTABLE SPACECRA, MRI: Development of Novel Instrumentation to Probe Nanoscale Charge Carrier Dynamics with high Temporal and Spatial Resolution, G7264595035
OpenAlex ID: W3036805259