期刊
ACS APPLIED ENERGY MATERIALS
卷 2, 期 11, 页码 7980-7990出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.9b01455
关键词
multivalent ion batteries; magnesium batteries; solid polymer electrolyte; composite polymer; galvanostatic cycling; low overpotential
资金
- National Science Foundation (NSF) CBET award [1805938]
- NSF DMR award [1620901]
- Australian Research Council [DP160103661]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1805938] Funding Source: National Science Foundation
Developing an electrolyte candidate with a wide voltage window, highly reversible cycling with Mg2+-metal anode, and without the use of any flammable solvents is a major challenge for rechargeable Mg batteries. 'While there have been several reports on Mg2+-conducting polymer electrolytes with high ionic conductivities, studies to determine their cycling performance and Mg-deposition overpotentials have been scarce. Here, we report a composite polymer electrolyte that exhibits a highly reversible cycling with Mg-metal anode at room temperature. The synthesized polymer electrolyte has a high conductivity of 0.16 mS cm(-1) at room temperature, and the galvanostatic cycling tests of Mg vertical bar Mg symmetric cells reveal that the reversible Mg deposition/stripping occurs at low overpotentials of 0.1-0.3 V for up to 400 cycles. The cycling stability of this composite polymer electrolyte is unprecedented among ambient-temperature solid-state Mg electrolytes, and the observed overpotential values are even comparable to those of the present state-of-the-art liquid electrolytes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据