Lithium-Rich Anti-perovskite Li2OHBr-Based Polymer Electrolytes Enabling an Improved Interfacial Stability with a Three-Dimensional-Structured Lithium Metal Anode in All-Solid-State Batteries

2021 ◽  
Author(s):  
Yu Ye ◽  
Zhi Deng ◽  
Lei Gao ◽  
Kangdi Niu ◽  
Ruo Zhao ◽  
...  
Keyword(s):  
Solid State ◽  
Polymer Electrolytes ◽  
Three Dimensional ◽  
Interfacial Stability ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Solid State Batteries ◽  
All Solid State Batteries

Protecting lithium metal anode in all-solid-state batteries with a composite electrolyte

Rare Metals ◽  
2020 ◽  
Author(s):  
Wen-Qing Wei ◽  
Bing-Qiang Liu ◽  
Yi-Qiang Gan ◽  
Hai-Jian Ma ◽  
Da-Wei Cui
Keyword(s):  
Solid State ◽  
Lithium Metal ◽  
Composite Electrolyte ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Solid State Batteries ◽  
All Solid State Batteries

All‐Solid‐State Batteries with a Limited Lithium Metal Anode at Room Temperature using a Garnet‐Based Electrolyte

2020 ◽  
Vol 33 (1) ◽  
pp. 2002325
Author(s):  
Shaojie Chen ◽  
Jingxuan Zhang ◽  
Lu Nie ◽  
Xiangchen Hu ◽  
Yuanqi Huang ◽  
...  
Keyword(s):  
Solid State ◽  
Room Temperature ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Solid State Batteries ◽  
All Solid State Batteries

Creep and Anisotropy of Free-Standing Lithium Metal Foils in an Industrial Dry Room

2021 ◽  
pp. 1-32
Author(s):  
Lara Dienemann ◽  
Anil Saigal ◽  
Michael A Zimmerman
Keyword(s):  
Mechanical Properties ◽  
Solid State ◽  
High Volume ◽  
Dominant Mode ◽  
Lithium Metal ◽  
Free Standing ◽  
Metal Anode ◽  
Lithium Metal Batteries ◽  
Lithium Metal Anode ◽  
Solid State Batteries

Abstract Commercialization of energy-dense lithium metal batteries relies on stable and uniform plating and stripping on the lithium metal anode. In electrochemical-mechanical modeling of solid-state batteries, there is a lack of consideration of specific mechanical properties of battery-grade lithium metal. Defining these characteristics is crucial for understanding how lithium ions plate on the lithium metal anode, how plating and stripping affect deformation of the anode and its interfacing material, and whether dendrites are suppressed. Recent experiments show that the dominant mode of deformation of lithium metal is creep. This study measures the time and temperature dependent mechanics of two thicknesses of commercial lithium anodes inside an industrial dry room, where battery cells are manufactured at high volume. Furthermore, a directional study examines the anisotropic microstructure of 100 µm thick lithium anodes and its effect on bulk creep mechanics. It is shown that these lithium anodes undergo plastic creep as soon as a coin cell is manufactured at a pressure of 0.30 MPa, and achieving thinner lithium foils, a critical goal for solid-state lithium batteries, is correlated to anisotropy in both lithium's microstructure and mechanical properties.

Physicochemical Concepts of the Lithium Metal Anode in Solid-State Batteries

2020 ◽  
Vol 120 (15) ◽  
pp. 7745-7794 ◽  
Author(s):  
Thorben Krauskopf ◽  
Felix H. Richter ◽  
Wolfgang G. Zeier ◽  
Jürgen Janek
Keyword(s):  
Solid State ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Solid State 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.

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

2021 ◽  
Vol 2021 ◽  
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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