Polymer–Inorganic Nanocomposite Coating with High Ionic Conductivity and Transference Number for a Stable Lithium Metal Anode

2020 ◽  
Vol 12 (37) ◽  
pp. 41620-41626
Author(s):  
Chengyin Fu ◽  
Corsin Battaglia

2019 ◽  
Vol 2 (4) ◽  
pp. 2692-2698 ◽  
Author(s):  
Lingfei Zhao ◽  
Wenhui Wang ◽  
Xixia Zhao ◽  
Zhen Hou ◽  
Xiaokun Fan ◽  
...  


2019 ◽  
Vol 7 (34) ◽  
pp. 19970-19976 ◽  
Author(s):  
Cheng Ma ◽  
Yiming Feng ◽  
Fangzhou Xing ◽  
Lin Zhou ◽  
Ying Yang ◽  
...  

A borate decorated anion-immobilized solid polymer electrolyte effectively integrates high ionic conductivity, high Li+ transference number and reasonably mechanical integrity, enabling long-term cycling stability for dendrite-free lithium metal batteries.



2019 ◽  
Vol 55 (11) ◽  
pp. 1592-1595 ◽  
Author(s):  
Bin Sun ◽  
Jialiang Lang ◽  
Kai Liu ◽  
Naveed Hussain ◽  
Minghao Fang ◽  
...  

A hybrid anode demonstrates an enhanced ionic conductivity and realizes the uniform lithium electrodeposition with dendrite suppression.



2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Hongcai Gao ◽  
Nicholas S. Grundish ◽  
Yongjie Zhao ◽  
Aijun Zhou ◽  
John B. Goodenough

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.



2020 ◽  
Vol 48 ◽  
pp. 375-382 ◽  
Author(s):  
Hewei Xu ◽  
Ying He ◽  
Zibo Zhang ◽  
Junli Shi ◽  
Pingying Liu ◽  
...  


2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Hongcai Gao ◽  
Nicholas S. Grundish ◽  
Yongjie Zhao ◽  
Aijun Zhou ◽  
John B. Goodenough

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.



2012 ◽  
Vol 1440 ◽  
Author(s):  
Jiajia Tan ◽  
Ashutosh Tiwari

ABSTRACTHigh quality garnet-type Li7La3Zr2O12 solid electrolyte was synthesized using a solution-based technique. The electrolyte pellets were sintered at 900 oC, resulting in tetragonal phase, which then transformed to cubic phase after annealing at 1230 oC. The ionic conductivity of both phases was studied and revealed to be 3.67x10-7 S/cm and 1.67×10-4 S/cm, respectively. A proto-type cell comprising of Li7La3Zr2O12 electrolyte, LiCoO2 cathode and lithium metal anode was assembled. The cell made with the cubic phase electrolyte exhibited superior performance than the one made with the tetragonal phase electrolyte. The former cell possessed a very promising gravimetric discharge capacity of 3.4 mAh/g, which is the highest value obtained among similar setups.



Small Methods ◽  
2021 ◽  
pp. 2001035
Author(s):  
Zhiyuan Han ◽  
Chen Zhang ◽  
Qiaowei Lin ◽  
Yunbo Zhang ◽  
Yaqian Deng ◽  
...  


Author(s):  
Yifei Cai ◽  
Bin Qin ◽  
Jinghuang Lin ◽  
Chun Li ◽  
Xiaoqing Si ◽  
...  


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