Key Issues Hindering a Practical Lithium-Metal Anode

被引：432

作者：

Fang, Chengcheng ^{[1
]}

Wang, Xuefeng ^{[2
]}

Meng, Ying Shirley ^{[1
,2
]}

机构：

[1] Univ Calif San Diego, Mat Sci & Engn Program, La Jolla, CA 92093 USA

[2] Univ Calif San Diego, Dept NanoEngn, La Jolla, CA 92093 USA

来源：

TRENDS IN CHEMISTRY | 2019年 / 1卷 / 02期

关键词：

LI-ION; LAYER DEPOSITION; DENDRITE GROWTH; SOLID-STATE; HIGH-ENERGY; ELECTROLYTES; CHALLENGES; INTERPHASES; DEPENDENCE; INTERFACES;

D O I：

10.1016/j.trechm.2019.02.015

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

The sluggish progress of battery technologies has drastically hindered the rapid development of electric vehicles and next-generation portable electronics. The lithium (Li) metal anode is critical to break the energy-density bottleneck of current Li-ion chemistry. After being intensively studied in recent years, the Li-metal field has developed new understanding and made unprecedented progress in preventing Li-dendrite growth and improving Coulombic efficiency, especially through development of advanced electrolytes and novel analytical tools. In this Opinion, we revisit the controversial issues surrounding Li metal as an anode based upon recent advances, revealing the underlying cause of Li-metal failure and the true role of 'solid electrolyte interphase' in Li-metal anodes. Finally, we propose future directions that must be taken in order for Li-metal batteries to become commercially viable.

引用

页码：152 / 158

页数：7

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