In situ formation of a LiF and Li–Al alloy anode protected layer on a Li metal anode with enhanced cycle life

2020 ◽  
Vol 8 (3) ◽  
pp. 1247-1253 ◽  
Author(s):  
Lili Wang ◽  
Shiyang Fu ◽  
Teng Zhao ◽  
Ji Qian ◽  
Nan Chen ◽  
...  
Keyword(s):  
High Energy ◽  
Cycle Life ◽  
Al Alloy ◽  
Next Generation ◽  
Metal Anode ◽  
Alloy Anode ◽  
Electrolyte Interface ◽  
Li Metal Anode ◽  
In Situ Formation

Development of next-generation high-energy lithium (Li) metal batteries is hindered by uncontrollable growth of Li dendrites and the unstable Li/electrolyte interface during repeated Li plating/stripping.

scholarly journals Enabling “lithium-free” manufacturing of pure lithium metal solid-state batteries through in situ plating

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Michael J. Wang ◽  
Eric Carmona ◽  
Arushi Gupta ◽  
Paul Albertus ◽  
Jeff Sakamoto
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Current Collector ◽  
High Energy ◽  
High Energy Density ◽  
Nucleation Behavior ◽  
Metal Anode ◽  
Solid State Batteries ◽  
Li Metal Anode

AbstractThe coupling of solid-state electrolytes with a Li-metal anode and state-of-the-art (SOA) cathode materials is a promising path to develop inherently safe batteries with high energy density (>1000 Wh L−1). However, integrating metallic Li with solid-electrolytes using scalable processes is not only challenging, but also adds extraneous volume since SOA cathodes are fully lithiated. Here we show the potential for “Li-free” battery manufacturing using the Li7La3Zr2O12 (LLZO) electrolyte. We demonstrate that Li-metal anodes >20 μm can be electroplated onto a current collector in situ without LLZO degradation and we propose a model to relate electrochemical and nucleation behavior. A full cell consisting of in situ formed Li, LLZO, and NCA is demonstrated, which exhibits stable cycling over 50 cycles with high Coulombic efficiencies. These findings demonstrate the viability of “Li-free” configurations using LLZO which may guide the design and manufacturing of high energy density solid-state batteries.

In Situ Formed Flexible Three-Dimensional Honeycomb-like Film for LiF/Li3N-riched Hybrid Organic-Inorganic Interphase on Li Metal Anode

2021 ◽  
Author(s):  
Daobin Mu ◽  
Chengwei Ma ◽  
Ge Mu ◽  
Haijian Lv ◽  
Chengcai Liu ◽  
...  
Keyword(s):  
Solid Electrolyte Interphase ◽  
Three Dimensional ◽  
High Energy ◽  
Liquid Electrolyte ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Li Metal Anode ◽  
Storage Batteries

The solid-electrolyte interphase (SEI) plays an important role in stabilizing lithium metal anode for high-energy storage batteries. However, the SEI between lithium metal anode and liquid electrolyte is usually unstable...

In Situ Formation of Circular and Branched Oligomers in Localized High Concentration Electrolyte at Lithium−metal Solid Electrolyte Interphase: A Hybrid ab initio and Reactive Molecular Dynamics

2021 ◽  
Author(s):  
Yue Liu ◽  
Qintao Sun ◽  
Peiping Yu ◽  
Bingyun Ma ◽  
Hao Yang ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Lithium Metal ◽  
High Concentration ◽  
Metal Anode ◽  
Reactive Molecular Dynamics ◽  
Li Metal Anode ◽  
In Situ Formation

Developing advanced electrolytes has been considered as a promising approach to stabilize lithium (Li) metal anode via the formation of stable solid electrolyte interphase (SEI) that can protect Li anode...

scholarly journals Celery-derived porous carbon materials for superior performance supercapacitor

2021 ◽  
Author(s):  
Sirui Liu ◽  
Ya ping Xu ◽  
Jinggao Wu ◽  
Jing Huang
Keyword(s):  
Porous Carbon ◽  
Carbon Materials ◽  
High Energy ◽  
Cycle Life ◽  
Superior Performance ◽  
Energy Output ◽  
Next Generation ◽  
Porous Carbon Materials ◽  
Long Cycle Life ◽  
Sustainable Materials

Supercapacitors are of paramount importance for next-generation applications, demonstrating high energy output, an ultra-long cycle life and utilizing green and sustainable materials. Herein, we utilize celery, a common biomass from...

scholarly journals Dendrite-Free and Stable Lithium Metal Battery Achieved by a Model of Stepwise Lithium Deposition and Stripping

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Tiancun Liu ◽  
Jinlong Wang ◽  
Yi Xu ◽  
Yifan Zhang ◽  
Yong Wang
Keyword(s):  
Reduction Method ◽  
Coulombic Efficiency ◽  
List Type ◽  
Lithium Metal ◽  
Metal Anode ◽  
In Situ Raman ◽  
Unique Model ◽  
Li Metal Anode ◽  
Pyridinic N

Highlights A facile method is adopted to obtain cucumber-like lithiophilic composite skeleton. Massive lithiophilic sites in cucumber-like lithiophilic composite skeleton can promote and guide uniform Li depositions. A unique model of stepwise Li deposition and stripping is determined. Abstract The uncontrolled formation of lithium (Li) dendrites and the unnecessary consumption of electrolyte during the Li plating/stripping process have been major obstacles in developing safe and stable Li metal batteries. Herein, we report a cucumber-like lithiophilic composite skeleton (CLCS) fabricated through a facile oxidation-immersion-reduction method. The stepwise Li deposition and stripping, determined using in situ Raman spectra during the galvanostatic Li charging/discharging process, promote the formation of a dendrite-free Li metal anode. Furthermore, numerous pyridinic N, pyrrolic N, and CuxN sites with excellent lithiophilicity work synergistically to distribute Li ions and suppress the formation of Li dendrites. Owing to these advantages, cells based on CLCS exhibit a high Coulombic efficiency of 97.3% for 700 cycles and an improved lifespan of 2000 h for symmetric cells. The full cells assembled with LiFePO4 (LFP), SeS2 cathodes and CLCS@Li anodes demonstrate high capacities of 110.1 mAh g−1 after 600 cycles at 0.2 A g−1 in CLCS@Li|LFP and 491.8 mAh g−1 after 500 cycles at 1 A g−1 in CLCS@Li|SeS2. The unique design of CLCS may accelerate the application of Li metal anodes in commercial Li metal batteries.

scholarly journals Constructing a stable interface between sulfide electrolyte and Li metal anode via a Li+-conductive gel polymer interlayer

2021 ◽  
Author(s):  
Ya-Hui Wang ◽  
Junpei Yue ◽  
Wen-Peng Wang ◽  
Wan-Ping Chen ◽  
Ying Zhang ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Solid Electrolytes ◽  
High Energy ◽  
High Ionic Conductivity ◽  
Practical Realization ◽  
Metal Anode ◽  
Li Metal Anode

Due to high ionic conductivity, favorable mechanical plasticity, and non-flammable properties, inorganic sulfide solid electrolytes bring opportunities to the practical realization of rechargeable Li-metal batteries with high energy, yet their...

Cotton pad derived 3D lithiophilic carbon host for robust Li metal anode: In-situ generated ionic conductive Li3N protective decoration

2021 ◽  
pp. 132722
Author(s):  
Chengyi Lu ◽  
Meng Tian ◽  
Xiangjun Zheng ◽  
Chaohui Wei ◽  
Mark H. Rummeli ◽  
...  
Keyword(s):  
Metal Anode ◽  
Li Metal Anode

In-situ coating of lithiophilic interphase on a biporous Cu scaffold with vertical microchannels for dendrite-free Li metal batteries

2021 ◽  
Author(s):  
Li-Min Wang ◽  
Xiaokuan Ban ◽  
Zongzi Jin ◽  
Ranran Peng ◽  
Chusheng Chen ◽  
...  
Keyword(s):  
Volume Change ◽  
Coulombic Efficiency ◽  
Dendrite Growth ◽  
Porous Scaffolds ◽  
Effective Strategy ◽  
Practical Application ◽  
Metal Anode ◽  
Li Metal Anode ◽  
In Situ Coating

Severe dendrite growth, low Coulombic efficiency and huge volume change have impeded the practical application of Li metal anode, and the construction of porous scaffolds is an effective strategy to...

Depressing the irreversible reactions on a three-dimensional interface towards a high-areal capacity lithium metal anode

2019 ◽  
Vol 7 (11) ◽  
pp. 6267-6274 ◽  
Author(s):  
Wei Deng ◽  
Shanshan Liang ◽  
Xufeng Zhou ◽  
Fei Zhao ◽  
Wenhua Zhu ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Lithium Metal ◽  
Current Collectors ◽  
Metal Anode ◽  
Irreversible Reaction ◽  
Conductive Coating ◽  
Lithium Metal Anode ◽  
Li Metal Anode ◽  
Areal Capacity

An ultrathin and conformal ion conductive coating is realized on 3D current collectors for preventing the irreversible reaction between the electrolyte and Li metal, which has been confirmed by in situ optical observation. At the high areal capacity of 10 mA h cm−2 for the Li metal anode, a stable CE of 98.9% for 800 h can be achieved.

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