Advanced Carbon-Based Nanostructured Framework for Li Anodes

In light of rising global resource consumption and the looming environmental crises, renewable energy sources are increasingly being explored in industries, transportations, and households. Novel energy materials and related high-energy-density storage technologies have received a lot of attention. Lithium (Li) metal is the most promising anode for implementing a high-performance energy storage system due to its elevated theoretical capacity. Uncontrollable dendrite formation, high volume change, and unstable solid electrolyte interface layer raise a slew of problems (low Coulombic efficiency, serious safety hazard, short lifetime, and so on) that make practical use of Li-metal anodes a pipe dream. To address these issues, researchers have focused their efforts on accommodating and guiding Li deposition as well as stabilizing the interface using a variety of carbon materials, which have proven to be highly effective due to their wide variety and excellent tunability of the structure–property relationship. This chapter primarily provides an overview of the crucial function of carbon-based hosts in increasing the overall performance of Li-metal anodes. The basic failure process of lithium metal anodes is described using linked mainstream models. The benefits and techniques for dealing with the accompanying issues of carbon-based hosts are discussed in general. The function, limitations, and current research advances of essential carbon-based host materials for Li-metal anodes are discussed. Finally, a conclusion is offered, as well as a future perspective for carbon-based host research is given. This chapter aims to summarize current achievements in carbon-based materials hosts and to serve as a guide for future development of carbon-based hosts for improved Li-metal anodes.