TY - JOUR
T1 - Alloy Anodes for Rechargeable Alkali-Metal Batteries
T2 - Progress and Challenge
AU - Liu, He
AU - Cheng, Xin Bing
AU - Huang, Jia Qi
AU - Kaskel, Stefan
AU - Chou, Shulei
AU - Park, Ho Seok
AU - Zhang, Qiang
N1 - Publisher Copyright:
Copyright © 2019 American Chemical Society.
PY - 2019/8/5
Y1 - 2019/8/5
N2 - Alkali metal electrodes (including lithium (Li), sodium (Na), and potassium (K)) have been strongly considered as promising candidates for next-generation batteries, beyond lithium ion batteries, because of their high theoretical specific capacities and very low electrochemical potentials. However, all alkali metal anodes are susceptible to dendrite growth, causing safety concerns, low energy efficiency, and short lifespan, which severely hampers their practical applications in working rechargeable batteries. Recently, alloy anodes with two metal components are effective to protect alkali metal anodes. In this Perspective, we analyze the alkali-metal alloy anodes based on their contribution to dendrite suppression, released capacity, and safety enhancement. Recent progress in alloy anodes, including Li/Na-X alloy (X represents the element of non-alkali metal), Li-Na alloy, and Na-K alloy, is reviewed. The perspectives and clear suggestions on the future of alkali-metal alloy anodes are presented. This sheds fresh light on the rational electrode architecture and materials for alkali metal anode and opens a new chapter for next-generation battery systems.
AB - Alkali metal electrodes (including lithium (Li), sodium (Na), and potassium (K)) have been strongly considered as promising candidates for next-generation batteries, beyond lithium ion batteries, because of their high theoretical specific capacities and very low electrochemical potentials. However, all alkali metal anodes are susceptible to dendrite growth, causing safety concerns, low energy efficiency, and short lifespan, which severely hampers their practical applications in working rechargeable batteries. Recently, alloy anodes with two metal components are effective to protect alkali metal anodes. In this Perspective, we analyze the alkali-metal alloy anodes based on their contribution to dendrite suppression, released capacity, and safety enhancement. Recent progress in alloy anodes, including Li/Na-X alloy (X represents the element of non-alkali metal), Li-Na alloy, and Na-K alloy, is reviewed. The perspectives and clear suggestions on the future of alkali-metal alloy anodes are presented. This sheds fresh light on the rational electrode architecture and materials for alkali metal anode and opens a new chapter for next-generation battery systems.
UR - http://www.scopus.com/inward/record.url?scp=85073669921&partnerID=8YFLogxK
U2 - 10.1021/acsmaterialslett.9b00118
DO - 10.1021/acsmaterialslett.9b00118
M3 - Review article
AN - SCOPUS:85073669921
SN - 2639-4979
VL - 1
SP - 217
EP - 229
JO - ACS Materials Letters
JF - ACS Materials Letters
IS - 2
ER -
