Issue 75, 2024

Lithium metal based battery systems with ultra-high energy density beyond 500 W h kg−1

Abstract

As industries and consumption patterns evolve, new electrical appliances are increasingly playing critical roles in national production, defense, and cognitive exploration. However, the slow development of energy storage devices with ultra-high energy density (beyond 500 W h kg−1) has impeded the promotion and widespread application of the next generation of intelligent, multi-scenario electrical equipment. Among the numerous ultra-high specific energy battery systems, lithium metal batteries (LMBs) hold significant potential for applications in advanced and sophisticated fields. This potential is primarily due to lithium metal's high specific capacity (3860 mA h g−1). However, LMBs face numerous challenges, including the growth of lithium dendrites, poor cycle stability, and safety concerns. In recent years, research on the mechanisms of Li metal-based battery systems, innovation in electrode materials, and optimization of device configurations have made significant progress. In this highlight, we provide a comprehensive overview of the storage mechanisms and the latest advancements in high-energy-density LMBs, represented by systems such as Li–Li1−xMO2, Li–S/Se, Li–gas (CO2/air/O2), Li–CFx, and all-solid-state LMBs. By integrating the current research findings, we highlight the opportunities and future research directions for high-energy-density LMBs, offering new guiding perspectives for their development under practical conditions.

Graphical abstract: Lithium metal based battery systems with ultra-high energy density beyond 500 W h kg−1

Article information

Article type
Highlight
Submitted
28 jún. 2024
Accepted
15 ágú. 2024
First published
16 ágú. 2024

Chem. Commun., 2024,60, 10245-10264

Lithium metal based battery systems with ultra-high energy density beyond 500 W h kg−1

C. Yang, Z. Jiang, X. Chen, W. Luo, T. Zhou and J. Yang, Chem. Commun., 2024, 60, 10245 DOI: 10.1039/D4CC03177F

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