Recent progress in SEI engineering for boosting Li metal anodes

doi:10.1039/d3mh01434g

2024-01-01

PRE

DOI：10.1039/d3mh01434g

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摘要

En 中文

Lithium metal anodes (LMAs) are ideal anode candidates for achieving next-generation high-energy-density battery systems due to their high theoretical capacity (3680 mA h g-1) and low working potential (-3.04 V versus the standard hydrogen electrode). However, the non-ideal solid electrolyte interface (SEI) derived from electrolyte/electrode interfacial reactions plays a vital role in the lithium deposition/stripping process and battery cycling performance. The composition and morphology of a SEI, which is sensitive to the outside environment, make it difficult to characterize and understand. With the development of characterization techniques, the mechanism, composition, and structure of a SEI can be better understood. In this review, the mechanism formation, the structure model evolution, and the composition of a SEI are briefly presented. Moreover, the development of in situ characterization techniques in recent years is introduced to better understand a SEI followed by the properties of the SEI, which are beneficial to the battery performance. Furthermore, recent optimization strategies of the SEI including the improvement of intrinsic SEIs and construction of artificial SEIs are summarized. Finally, the current challenges and future perspectives of SEI research are summarized. This review summarizes the formation mechanism, structural model, composition, in situ/operando characterization, properties, and optimization strategies of a SEI.

Keyword:

SOLID-ELECTROLYTE-INTERPHASE

LITHIUM ION BATTERIES

DENDRITE-FREE

INTERFACE

LAYERS

LIQUID

SALTS

MECHANISMS

DEPOSITION

MICROSCOPY

期刊

Materials Horizons

IF:

10.7

论文数:

3.6K

被引数:

2.4W

机构

Beijing University of Technology

学者数:

2.6K

论文数: 786

被引数: 0

引用论文

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NATURE MATERIALS

IF38.5

2019-03-11

664

PREAI

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Reviving the lithium metal anode for high-energy batteries 复兴高能电池的锂金属阳极

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IF34.9

2017-03-07

5.4K

PREAI

Lin, Dingchang; Liu, Yayuan; Cui, Yi

Mechanical studies of the solid electrolyte interphase on anodes in lithium and lithium ion batteries 锂和锂离子电池阳极上固体电解质界面的力学研究

nanotechnology

IF2.8

2021-09-27