Interactions Between Solid Electrolyte Interphase and Lithium Dendrite

Author:

Wang Yunxiang1,Hao Feng1

Affiliation:

1. Department of Engineering Mechanics, Shandong University, Jinan 250100, China

Abstract

Abstract Li metal batteries (LMBs) are one of the most promising high-energy-density batteries. However, solid electrolyte interphase (SEI) and Li dendrite substantially form in LMBs. Due to low ionic conductivity, inhomogeneity, and poor mechanical and electrochemical stability of native SEI, dendritic Li nucleates and grows, which in turn induces the fracture of SEI and promotes the formation of new SEI, causing the loss of active materials and safety issues for LMBs. Understanding the SEI–dendrite interactions could play a critical role in developing LMBs. For instance, modified SEI has been demonstrated to suppress dendrite growth and improve battery performance. In this short review, we discuss the underlying mechanisms of SEI–dendrite interactions and strategies for improving battery cycling performance.

Funder

National Natural Science Foundation of China

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electronic, Optical and Magnetic Materials

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