Stable alkali metal anodes enabled by crystallographic optimization-A review

2021 ◽  
Author(s):  
Weizhai Bao ◽  
Ronghao Wang ◽  
Bingqing Li ◽  
Chengfei Qian ◽  
Zherui Zhang ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Redox Potential ◽  
Specific Capacity ◽  
High Energy ◽  
Next Generation ◽  
Ideal Candidate ◽  
The Ideal ◽  
Metal Anodes

Alkali metal anodes have been regarded as the ideal candidate for the next generation high-energy electrode couples due to their ultrahigh specific capacity and the lowest redox potential. However, their...

Recent advanced skeletons in sodium metal anodes

2021 ◽  
Author(s):  
Chenxiao Chu ◽  
Rui Li ◽  
Feipeng Cai ◽  
Zhongchao Bai ◽  
Yunxiao Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Redox Potential ◽  
High Energy ◽  
High Energy Density ◽  
Next Generation ◽  
Metal Anode ◽  
Sodium Metal ◽  
High Theoretical Capacity ◽  
Metal Anodes

Abstract: Sodium metal anode exhibits great potential in next-generation high-energy-density batteries due to its high theoretical capacity (1165 mA h g-1) at low redox potential (-2.71 V versus standard hydrogen...

Reviving Lithium-Metal Anodes for Next-Generation High-Energy Batteries

2017 ◽  
Vol 29 (29) ◽  
pp. 1700007 ◽  
Author(s):  
Yanpeng Guo ◽  
Huiqiao Li ◽  
Tianyou Zhai
Keyword(s):  
High Energy ◽  
Lithium Metal ◽  
Next Generation ◽  
Lithium Metal Anodes ◽  
Metal Anodes

Janus behaviour of LiFSI- and LiPF6-based electrolytes for Li metal batteries: chemical corrosion versus galvanic corrosion

2021 ◽  
Author(s):  
Bomee Kwon ◽  
Jeonghyeop Lee ◽  
Hyunchul Kim ◽  
Dong-min Kim ◽  
Kyobin Park ◽  
...  
Keyword(s):  
Energy Density ◽  
Redox Potential ◽  
Galvanic Corrosion ◽  
Specific Capacity ◽  
High Energy ◽  
Redox Couple ◽  
High Energy Density ◽  
High Specific Capacity ◽  
Chemical Corrosion ◽  
Li Batteries

Li metal has been considered a promising anode for high energy density Li batteries because of the lowest redox potential and high specific capacity of the Li/Li+ redox couple. However,...

Next Generation Positive Electrode Materials Enabled by Nanocomposites: -Metal Fluorides-

2002 ◽  
Vol 756 ◽  
Author(s):  
F. Badway ◽  
N. Pereira ◽  
F. Cosandey ◽  
G. G. Amatucci
Keyword(s):  
Energy Density ◽  
Electrode Materials ◽  
Specific Capacity ◽  
High Energy ◽  
Positive Electrode ◽  
High Energy Density ◽  
Metal Fluoride ◽  
Next Generation ◽  
Metal Fluorides ◽  
High Resolution Tem

ABSTRACTThrough the use of nanostructures and nanocomposites, the electrochemical activity of metal fluoride materials was opened as potential candidates as next generation high energy density positive electrodes for Li batteries. This class of materials, utilizing FeF3 as an example, is shown to exhibit good reversible behavior of approximately 200 mAh/g in the 3V region. The specific capacity is extended to 600 mAh/g when the discharge is extended to take into account the additional specific capacity associated with a 2V plateau. Through the use of XRD, SAED and high resolution TEM, the 2V reaction mechanism was associated to a reversible metal fluoride conversion mechanism. It is shown that LiF + Fe nanocomposite can be utilized as initial components in order to make the technology suitable for Li-ion applications. Although exhibiting relatively poor rate capabilities at this initial stage, reversible conversion metal fluorides enable for the first time the utilization of all the redox states of the constituent metal in a reversible manner in the positive electrode. This translates to 4X the specific capacity and double the energy density of today's state of the art LiCoO2.

Stable Sodium Metal Anodes with a High Utilization Enabled by an Interfacial Layer Composed of Yolk–Shell Nanoparticles

2021 ◽  
Author(s):  
Nanhe Zhu ◽  
Xiaoge Mao ◽  
Guanyao Wang ◽  
Ming Zhu ◽  
hongyong wang ◽  
...  
Keyword(s):  
Redox Potential ◽  
Interfacial Layer ◽  
Specific Capacity ◽  
High Energy ◽  
Rechargeable Batteries ◽  
Metallic Sodium ◽  
Shell Nanoparticles ◽  
Sodium Metal ◽  
High Utilization ◽  
Theoretical Specific Capacity

Metallic sodium (Na) has been regarded as a promising anode for high energy rechargeable batteries owing to its high theoretical specific capacity, low redox potential, and abundant resource. However, Na...

Dual-Regulation of Ion/Electron in 3D Cu-CuxO host to Guide Uniform Lithium Growth for High-Performance Lithium Metal Anodes

2021 ◽  
Author(s):  
Ruichao Lu ◽  
Binbin Zhang ◽  
Yueli Cheng ◽  
Kamran Amin ◽  
Chen Yang ◽  
...  
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
High Energy ◽  
Common Phenomenon ◽  
Lithium Metal ◽  
Next Generation ◽  
Current Collectors ◽  
Battery Systems ◽  
Lithium Metal Anodes ◽  
Metal Anodes

Three-dimensional (3D) current collectors have shown great potential in realizing practical Li metal anodes for next-generation high-energy battery systems. However, 3D current collectors suffer from a common phenomenon of preferential...

scholarly journals An anion-immobilized composite electrolyte for dendrite-free lithium metal anodes

2017 ◽  
Vol 114 (42) ◽  
pp. 11069-11074 ◽  
Author(s):  
Chen-Zi Zhao ◽  
Xue-Qiang Zhang ◽  
Xin-Bing Cheng ◽  
Rui Zhang ◽  
Rui Xu ◽  
...  
Keyword(s):  
Solid State ◽  
Specific Capacity ◽  
Lithium Metal ◽  
Next Generation ◽  
Lithium Ions ◽  
Composite Electrolyte ◽  
Lithium Metal Batteries ◽  
Lithium Metal Anodes ◽  
Ceramic Fillers ◽  
Metal Anodes

Lithium metal is strongly regarded as a promising electrode material in next-generation rechargeable batteries due to its extremely high theoretical specific capacity and lowest reduction potential. However, the safety issue and short lifespan induced by uncontrolled dendrite growth have hindered the practical applications of lithium metal anodes. Hence, we propose a flexible anion-immobilized ceramic–polymer composite electrolyte to inhibit lithium dendrites and construct safe batteries. Anions in the composite electrolyte are tethered by a polymer matrix and ceramic fillers, inducing a uniform distribution of space charges and lithium ions that contributes to a dendrite-free lithium deposition. The dissociation of anions and lithium ions also helps to reduce the polymer crystallinity, rendering stable and fast transportation of lithium ions. Ceramic fillers in the electrolyte extend the electrochemically stable window to as wide as 5.5 V and provide a barrier to short circuiting for realizing safe batteries at elevated temperature. The anion-immobilized electrolyte can be applied in all–solid-state batteries and exhibits a small polarization of 15 mV. Cooperated with LiFePO4 and LiNi0.5Co0.2Mn0.3O2 cathodes, the all–solid-state lithium metal batteries render excellent specific capacities of above 150 mAh⋅g−1 and well withstand mechanical bending. These results reveal a promising opportunity for safe and flexible next-generation lithium metal batteries.

Recent Advances in Two-Dimensional Materials for Alkali Metal Anodes

2021 ◽  
Author(s):  
lianbo ma ◽  
Junxiong Wu ◽  
Guoyin Zhu ◽  
Yao Hui Lv ◽  
Yizhou Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
Alkali Metal ◽  
High Energy ◽  
High Energy Density ◽  
Two Dimensional ◽  
Redox Potentials ◽  
Practical Applications ◽  
Two Dimensional Materials ◽  
High Theoretical Capacity ◽  
Metal Anodes

Alkali metal anodes (AMAs) with high theoretical capacity, high energy density, and low redox potentials have attracted tremendous attention for high-energy-density batteries. However, their practical applications are hindered by severe...

Advanced In-Situ Technology for Li/Na Metal Anodes: An In-Depth Mechanism Understanding

2021 ◽  
Author(s):  
Jun Pu ◽  
Chenglin Zhong ◽  
Jiahao Liu ◽  
Zhenghua Wang ◽  
Dongliang Chao
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
High Energy ◽  
Dendrite Growth ◽  
Electrochemical Potential ◽  
Next Generation ◽  
High Theoretical Capacity ◽  
Metal Anodes

Li/Na metal anodes, based on their high theoretical capacity and low electrochemical potential, provide promising alternatives for next-generation high energy batteries. However, their unstable solid-electrolyte interphase and dendrite growth remain...

Advanced Li Metal Anode by Fluorinated Metathesis on Conjugated Carbon Networks

2021 ◽  
Author(s):  
Yong Jun Gong ◽  
Seonmi Pyo ◽  
Hyunjin Kim ◽  
Jinil Cho ◽  
Heejun Yun ◽  
...  
Keyword(s):  
Redox Potential ◽  
Anode Material ◽  
Specific Capacity ◽  
Next Generation ◽  
Metal Anode ◽  
Carbon Networks ◽  
Li Ion ◽  
Li Metal Anode ◽  
Theoretical Specific Capacity

Li metal anode has high theoretical specific capacity and low redox potential, making it suitable as anode material for next-generation Li ion-based batteries (LIBs); however, challenges remain due to its...

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