Extending Cycle Life of Mg/S Battery by Activation of Mg Anode/Electrolyte Interface through an LiCl‐Assisted MgCl 2 Solubilization Mechanism

2019 ◽  
Vol 30 (9) ◽  
pp. 1909370 ◽  
Author(s):  
Haiyan Fan ◽  
Zhaozhao Zheng ◽  
Lijuan Zhao ◽  
Wanfei Li ◽  
Jian Wang ◽  
...  
Keyword(s):  
Cycle Life ◽  
Electrolyte Interface ◽  
Solubilization Mechanism

Optimal utilization of fluoroethylene carbonate in potassium ion batteries

2020 ◽  
Author(s):  
Xiaojing Liu ◽  
Chaofei Zhang ◽  
Juan Chen ◽  
Xing Yin ◽  
Yidan Sun ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Potassium Ion ◽  
Cycle Life ◽  
Solid Electrolyte Interface ◽  
Electrolyte Interface ◽  
Fluoroethylene Carbonate ◽  
Novel Strategy

This work provides a novel strategy of optimal utilization of fluoroethylene carbonate to generate a uniform and compact solid electrolyte interface film, enhancing the cycle life of potassium ion batteries....

scholarly journals In-situ construction of NaF-rich cathode electrolyte interface on prussian blue toward 3000-cycle-life sodium ion battery

2021 ◽  
pp. 100898
Author(s):  
Minghui Ye ◽  
Shunzhang You ◽  
Jiaming Xiong ◽  
Yang Yang ◽  
Yufei Zhang ◽  
...  
Keyword(s):  
Prussian Blue ◽  
Cycle Life ◽  
Sodium Ion ◽  
Sodium Ion Battery ◽  
Electrolyte Interface

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.

Cellulose Separators with Integrated Carbon Nanotube Interlayers for Lithium-Sulfur Batteries: An Investigation into the Complex Interplay Between Cell Components

2019 ◽  
Author(s):  
Yu-Chuan Chien ◽  
Ruijun Pan ◽  
Ming-Tao Lee ◽  
Leif Nyholm ◽  
Daniel Brandell ◽  
...  
Keyword(s):  
Coulombic Efficiency ◽  
Solid Electrolyte Interphase ◽  
Holistic Approach ◽  
Cycle Life ◽  
Complex Interplay ◽  
Positive Electrodes ◽  
Lithium Sulfur Batteries ◽  
Cell Components ◽  
Redox Shuttle ◽  
Lithium Sulfur

This work aims to address two major roadblocks in the development of lithium-sulfur (Li-S) batteries: the inefficient deposition of Li on the metallic Li electrode and the parasitic "polysulfide redox shuttle". These roadblocks are here approached, respectively, by the combination of a cellulose separator with a cathode-facing conductive porous carbon interlayer, based on their previously reported individual benefits. The cellulose separator increases cycle life by 33%, and the interlayer by a further 25%, in test cells with positive electrodes with practically relevant specifications and a relatively low electrolyte/sulfur (E/S) ratio. Despite the prolonged cycle life, the combination of the interlayer and cellulose separator increases the polysulfide shuttle current, leading to reduced Coulombic efficiency. Based on XPS analyses, the latter is ascribed to a change in the composition of the solid electrolyte interphase (SEI) on Li. Meanwhile, electrolyte decomposition is found to be slower in cells with cellulose-based separators, which explains their longer cycle life. These counterintuitive observations demonstrate the complicated interactions between the cell components in the Li-S system and how strategies aiming to mitigate one unwanted process may exacerbate another. This study demonstrates the value of a holistic approach to the development of Li-S chemistry.<br>

Photo-Current Enhancement at Cu/p-Cu2O/rGO- Electrolyte Interface

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
S.P.A.U.K. Samarakoon ◽  
C.A.N. Fernando
Keyword(s):  
Diffuse Reflectance ◽  
Electrochemical Cell ◽  
Time Development ◽  
Charge Carriers ◽  
Electrochemical Cells ◽  
Current Action ◽  
Electrolyte Interface ◽  
Reduced Graphene ◽  
Efficient Charge ◽  
Photo Current

A considerable photo-current enhancement was found at the Cu/p-Cu2O/rGO-electrolyte interface in a photo-electrochemical cell with compared to that of Cu/p-Cu2O-electrolyte interface. The reason for the photo-current enhancement may be due to the efficient charge separation process provided at Cu/p-Cu2O/rGO-electrolyte interface. Here rGO (reduced graphene oxide) acts as an electron acceptor for the photo-generated charge carriers as it readily accept electrons from the conduction band of p-Cu2O. rGO was synthesized using electro-phoretic deposition (EPD) technique. Fabricated samples were characterized using diffuse reflectance spectra, photo-current action spectra and the time development of the photocurrent of photo-electrochemical cells.

Cycle life testing and modeling of graphite/LiCoO2 cells under different state of charge ranges

2016 ◽  
Vol 327 ◽  
pp. 394-400 ◽  
Author(s):  
Saurabh Saxena ◽  
Christopher Hendricks ◽  
Michael Pecht
Keyword(s):  
State Of Charge ◽  
Cycle Life ◽  
Life Testing

scholarly journals High-cycle-life and high-loading copolymer network with potential application as a soft actuator

2019 ◽  
Vol 182 ◽  
pp. 108010 ◽  
Author(s):  
Hafeez Ur Rehman ◽  
Yujie Chen ◽  
Mikael S. Hedenqvist ◽  
Radan Pathan ◽  
Hezhou Liu ◽  
...  
Keyword(s):  
Potential Application ◽  
Cycle Life ◽  
High Loading ◽  
Soft Actuator ◽  
Copolymer Network
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