scholarly journals Assessing structure and stability of polymer/lithium-metal interfaces from first-principles calculations

2019 ◽  
Vol 7 (14) ◽  
pp. 8394-8404 ◽  
Author(s):  
Mahsa Ebadi ◽  
Cleber Marchiori ◽  
Jonas Mindemark ◽  
Daniel Brandell ◽  
C. Moyses Araujo
Keyword(s):  
First Principles ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
First Principles Calculations ◽  
Lithium Metal ◽  
Structure And Stability ◽  
Limited Degree ◽  
Metal Interfaces

Solid polymer electrolytes (SPEs) are promising candidates for Li metal battery applications, but the interface between these two categories of materials has so far been studied only to a limited degree.

Ether-Containing Polycarbonate-Based Solid Polymer Electrolytes for Dendrite-Free Lithium Metal Batteries

Polymer ◽  
2021 ◽  
pp. 123695
Author(s):  
Yubing Chen ◽  
Guangping Chen ◽  
Chaoqun Niu ◽  
Wenyan Shang ◽  
Rentong Yu ◽  
...  
Keyword(s):  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Lithium Metal ◽  
Lithium Metal Batteries

Ultralong cycling and wide temperature range of lithium metal batteries enabled by solid polymer electrolytes interpenetrated with a poly(liquid crystal) network

2021 ◽  
Author(s):  
Meng Yao ◽  
Haitao Zhang ◽  
Kun Dong ◽  
Bosen Li ◽  
Chunxian Xing ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Wide Temperature Range ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Lithium Metal ◽  
Lithium Ions ◽  
Lithium Metal Batteries ◽  
Crystal Network

With the in situ polymerization of liquid crystal (LC), more free lithium ions are released, which enhances the performance of P-PLC-IL.

Enabling high performance all-solid-state lithium metal batteries using solid polymer electrolytes plasticized with ionic liquid

2020 ◽  
Vol 345 ◽  
pp. 136156 ◽  
Author(s):  
Matthew D. Widstrom ◽  
Kyle B. Ludwig ◽  
Jesse E. Matthews ◽  
Angelique Jarry ◽  
Metecan Erdi ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solid State ◽  
Polymer Electrolytes ◽  
High Performance ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Lithium Metal ◽  
Lithium Metal Batteries

Formation of Stable Interphase of Polymer-in-Salt Electrolyte in All-Solid-State Lithium Batteries

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Hongcai Gao ◽  
Nicholas S. Grundish ◽  
Yongjie Zhao ◽  
Aijun Zhou ◽  
John B. Goodenough
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Lithium Batteries ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Lithium Metal ◽  
Practical Utilization ◽  
Metal Anode ◽  
Lithium Metal Anode

The integration of solid-polymer electrolytes into all-solid-state lithium batteries is highly desirable to overcome the limitations of current battery configurations that have a low energy density and severe safety concerns. Polyacrylonitrile is an appealing matrix for solid-polymer electrolytes; however, the practical utilization of such polymer electrolytes in all-solid-state cells is impeded by inferior ionic conductivity and instability against a lithium-metal anode. In this work, we show that a polymer-in-salt electrolyte based on polyacrylonitrile with a lithium salt as the major component exhibits a wide electrochemically stable window, a high ionic conductivity, and an increased lithium-ion transference number. The growth of dendrites from the lithium-metal anode was suppressed effectively by the polymer-in-salt electrolyte to increase the safety features of the batteries. In addition, we found that a stable interphase was formed between the lithium-metal anode and the polymer-in-salt electrolyte to restrain the uncontrolled parasitic reactions, and we demonstrated an all-solid-state battery configuration with a LiFePO4 cathode and the polymer-in-salt electrolyte, which exhibited a superior cycling stability and rate capability.

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