Excellent room-temperature performance of lithium metal polymer battery with enhanced interfacial compatibility

Recently, rechargeable lithium metal polymer battery (LMPB) attracts increasing attention because of its high safety and energy density properties. However, the high contact interfacial resistance of solid-state electrode and electrolyte is still an obstacle to satisfy the demand of high current den...

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Bibliographic Details
Published in:Electrochimica acta 2018-09, Vol.283, p.1261-1268
Main Authors: Fu, Chuankai, Lou, Shuaifeng, Cao, Yi, Ma, Yulin, Du, Chunyu, Zuo, Pengjian, Cheng, Xinqun, Tang, Weiping, Wu, Yongmin, Gao, Yunzhi, Huo, Hua, Yin, Geping
Format: Article
Language:English
Subjects:
Composite solid-state electrolyte
Interfacial compatibility
Lithium metal polymer battery
Room temperature
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Summary:Recently, rechargeable lithium metal polymer battery (LMPB) attracts increasing attention because of its high safety and energy density properties. However, the high contact interfacial resistance of solid-state electrode and electrolyte is still an obstacle to satisfy the demand of high current density and long cycle stability, especially at room and lower temperature. Here, we develop a simple and efficient heat treatment method, to improve the interfacial compatibility between electrode and electrolyte in all-solid-state LMPB, successfully realizing workable LMPB at a reduced temperature (30 °C). The LMPB shows excellent cycling performance and rate capability in the voltage range of 2.5–4.2 V. The behavior of Li+ plating/stripping on the surface of lithium metal anode is greatly enhanced. Meanwhile, the interfacial resistance of the LMPB decrease significantly after the heat treatment process.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2018.07.040