scholarly journals Evaluation Residual Moisture in Lithium-Ion Battery Electrodes and Its Effect on Electrode Performance

MRS Advances ◽  
2016 ◽  
Vol 1 (15) ◽  
pp. 1029-1035 ◽  
Author(s):  
Jianlin Li ◽  
Claus Daniel ◽  
Seong Jin An ◽  
David Wood
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Battery ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Cycle Life ◽  
Aqueous Processing ◽  
Short Term ◽  
Residual Moisture ◽  
Electrode Performance ◽  
Moisture Contents

ABSTRACTRemoving residual moisture in lithium-ion battery electrodes is essential for desired electrochemical performance. In this manuscript, the residual moisture in LiNi0.5Mn0.3Co0.2O2 cathodes produced by conventional solvent-based and aqueous processing is characterized and compared. The electrochemical performance has also been investigated for various residual moisture contents. It has been demonstrated that the residual moisture lowers the first cycle coulombic efficiency, but its effect on short term cycle life is insignificant.

scholarly journals Enhanced capacity and cycle life of nitrogen-doped activated charcoal anode for the lithium ion battery: a solvent-free approach

RSC Advances ◽  
2017 ◽  
Vol 7 (27) ◽  
pp. 16505-16512 ◽  
Author(s):  
Chandrasekar M. Subramaniyam ◽  
N. R. Srinivasan ◽  
Zhixin Tai ◽  
Hua Kun Liu ◽  
Shi Xue Dou
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Activated Charcoal ◽  
Lithium Ion ◽  
Solvent Free ◽  
Cycle Life ◽  
Nitrogen Doped

Herein, we investigated the electrochemical performance of nitrogen-doped commercial activated charcoal (R-AC) for lithium-ion batteries (LIBs).

scholarly journals CaF2 Coated Li1.2Mn0.56Ni0.16Co0.08O2 Microspheres with Enhanced Electrochemical Performances as Lithium Ion Battery Cathode

2021 ◽  
Vol 27 (1) ◽  
pp. 3-7
Author(s):  
Yunlong ZHOU ◽  
Chenhao ZHAO ◽  
Kaiyu LIU ◽  
Zhibiao HU ◽  
Qing XU ◽  
...  
Keyword(s):  
Surface Modification ◽  
Electrochemical Performance ◽  
Lithium Ion Battery ◽  
Discharge Capacity ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Coated Sample ◽  
Electrochemical Performances ◽  
Ion Conductor ◽  
High Discharge Capacity

Surface modification has been one of most effective methods to improve the electrochemical performance of lithium rich layered oxides. In this paper, the Li1.2Mn0.56Ni0.16Co0.08O2 microspheres are prepared by urea assisted combustion route, and then coated with proper amount of CaF2. XRD and SEM results show surface modification has not changed the structure of Li1.2Mn0.56Ni0.16Co0.08O2, and a uniform coating layer can be obtained. As lithium ion battery cathode, the optimal CaF2 (i.e, 2wt%) coated sample presents a high initial discharge capacity of 223 mAh·g-1 with Coulombic efficiency of 80.5% at 0.1C, which is much better than that of pristine sample. Also, a high discharge capacity of 119 mAh·g-1 can be obtained for CaF2 coated sample at 5C. The improved electrochemical performance may be attributed the formation of fast Li ion conductor on the surface supported by EIS study.

Solvothermal-assisted assembly of MoS2 nanocages on graphene sheets to enhance the electrochemical performance of lithium-ion battery

Nano Research ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 1029-1034
Author(s):  
Dafang He ◽  
Yi Yang ◽  
Zhenmin Liu ◽  
Jin Shao ◽  
Jian Wu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Graphene Sheets

An aqueous rechargeable lithium ion battery with long cycle life and overcharge self-protection

2021 ◽  
Author(s):  
Zhiguo Hou ◽  
Lei Zhang ◽  
Jianwu Chen ◽  
Yali Xiong ◽  
Xueqian Zhang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Cycle Life ◽  
Long Cycle ◽  
Full Cell ◽  
Long Cycle Life ◽  
Excellent Cycling Stability ◽  
Self Protection

Zn2+ added into electrolyte can effectively suppress H2 evolution. Therefore, a LiMn2O4/NaTi2(PO4)3 full cell exhibits enhanced overcharging performance and excellent cycling stability up to 10 000 cycles.

Extended Cycle Life Implications of Fast Charging for Lithium-Ion Battery Cathode

2021 ◽  
Author(s):  
Tanvir R. Tanim ◽  
Zhenzhen Yang ◽  
Andrew M. Colclasure ◽  
Parameswara R. Chinnam ◽  
Paul Gasper ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Cycle Life ◽  
Fast Charging ◽  
Extended Cycle

scholarly journals Fabrication and Characterization of Nylon 66/PAN Nanofibrous Film Used as Separator of Lithium-Ion Battery

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1984
Author(s):  
Yu-Hsun Nien ◽  
Chih-Ning Chang ◽  
Pao-Lin Chuang ◽  
Chun-Han Hsu ◽  
Jun-Lun Liao ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Batteries ◽  
Lithium Battery ◽  
Coulombic Efficiency ◽  
Electronic Devices ◽  
Lithium Ion ◽  
Nylon 66 ◽  
Excellent Electrochemical Performance ◽  
Fabrication And Characterization

In recent years, portable electronic devices have flourished, and the safety of lithium batteries has received increasing attention. In this study, nanofibers were prepared by electrospinning using different ratios of nylon 66/polyacrylonitrile (PAN), and their properties were studied and compared with commercial PP separators. The experimental results show that the addition of PAN in nylon 66/PAN nanofibrous film used as separator of lithium-ion battery can enhance the porosity up to 85%. There is also no significant shrinkage in the shrinkage test, and the thermal dimensional stability is good. When the Li/LiFePO4 lithium battery is prepared by nylon 66/PAN nanofibrous film used as separator, the capacitor can be maintained at 140 mAhg−1 after 20 cycles at 0.1 C, and the coulombic efficiency is still maintained at 99%, which has excellent electrochemical performance.

Two-dimensional hybrid nanosheets of few layered MoSe2 on reduced graphene oxide as anodes for long-cycle-life lithium-ion batteries

2016 ◽  
Vol 4 (40) ◽  
pp. 15302-15308 ◽  
Author(s):  
Zhigao Luo ◽  
Jiang Zhou ◽  
Lirong Wang ◽  
Guozhao Fang ◽  
Anqiang Pan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Lithium Ion ◽  
Cycle Life ◽  
Two Dimensional ◽  
Long Cycle Life ◽  
Excellent Electrochemical Performance ◽  
Reduced Graphene

We report the synthesis of a novel 2D hybrid nanosheet constructed by few layered MoSe2 grown on reduced graphene oxide (rGO), which exhibits excellent electrochemical performance as anodes for lithium ion batteries.

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