Promoting a highly stable lithium metal anode by superficial alloying with an ultrathin indium sheet

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

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

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.

Garnet-type Li7La3Zr2O12 Electrolyte Prepared by a Solution-Based Technique for Lithium ion battery

2012 ◽  
Vol 1440 ◽  
Author(s):  
Jiajia Tan ◽  
Ashutosh Tiwari
Keyword(s):  
Ionic Conductivity ◽  
Tetragonal Phase ◽  
Lithium Ion ◽  
Superior Performance ◽  
Cubic Phase ◽  
Lithium Metal ◽  
High Quality ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
The One

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.

Ni3N Nanocrystals Decorated Reduced Graphene Oxide with High Ionic Conductivity for Stable Lithium Metal Anode

2019 ◽  
Vol 2 (4) ◽  
pp. 2692-2698 ◽  
Author(s):  
Lingfei Zhao ◽  
Wenhui Wang ◽  
Xixia Zhao ◽  
Zhen Hou ◽  
Xiaokun Fan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Ionic Conductivity ◽  
Reduced Graphene Oxide ◽  
High Ionic Conductivity ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Reduced Graphene

A Protective Layer for Lithium Metal Anode: Why and How

Small Methods ◽  
2021 ◽  
pp. 2001035
Author(s):  
Zhiyuan Han ◽  
Chen Zhang ◽  
Qiaowei Lin ◽  
Yunbo Zhang ◽  
Yaqian Deng ◽  
...  
Keyword(s):  
Protective Layer ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode

Self-Assembly Lightweight Honeycomb-Like Prussian Blue Analogue on Cu Foam for Lithium Metal Anode

2021 ◽  
Author(s):  
Yifei Cai ◽  
Bin Qin ◽  
Jinghuang Lin ◽  
Chun Li ◽  
Xiaoqing Si ◽  
...  
Keyword(s):  
Prussian Blue ◽  
Self Assembly ◽  
Lithium Metal ◽  
Prussian Blue Analogue ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Cu Foam

scholarly journals Artificial dual solid-electrolyte interfaces based on in situ organothiol transformation in lithium sulfur battery

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Wei Guo ◽  
Wanying Zhang ◽  
Yubing Si ◽  
Donghai Wang ◽  
Yongzhu Fu ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Interface Reaction ◽  
Interfacial Instability ◽  
Anode Surface ◽  
Commercial Application ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Lithium Sulfur

AbstractThe interfacial instability of the lithium-metal anode and shuttling of lithium polysulfides in lithium-sulfur (Li-S) batteries hinder the commercial application. Herein, we report a bifunctional electrolyte additive, i.e., 1,3,5-benzenetrithiol (BTT), which is used to construct solid-electrolyte interfaces (SEIs) on both electrodes from in situ organothiol transformation. BTT reacts with lithium metal to form lithium 1,3,5-benzenetrithiolate depositing on the anode surface, enabling reversible lithium deposition/stripping. BTT also reacts with sulfur to form an oligomer/polymer SEI covering the cathode surface, reducing the dissolution and shuttling of lithium polysulfides. The Li–S cell with BTT delivers a specific discharge capacity of 1,239 mAh g−1 (based on sulfur), and high cycling stability of over 300 cycles at 1C rate. A Li–S pouch cell with BTT is also evaluated to prove the concept. This study constructs an ingenious interface reaction based on bond chemistry, aiming to solve the inherent problems of Li–S batteries.

scholarly journals Enabling Lithium Metal Anode in Nonflammable Phosphate Electrolyte with Electrochemically Induced Chemical Reactions

2021 ◽  
Author(s):  
Haochuan Zhang ◽  
Jingru Luo ◽  
Miao Qi ◽  
Shiru Lin ◽  
Qi Dong ◽  
...  
Keyword(s):  
Chemical Reactions ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Phosphate Electrolyte
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