Enhanced ionic conductivity and electrochemical capacity of lithium ion battery based on PVDF-HFP/HDPE membrane

2016 ◽  
Vol 170 ◽  
pp. 126-129 ◽  
Author(s):  
Junying He ◽  
Jiuqing Liu ◽  
Jie Li ◽  
Yanqing Lai ◽  
Xiufeng Wu
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Electrochemical Capacity

Enhancing ionic conductivity with fluorination in organosilyl solvents for lithium-ion battery electrolytes

2019 ◽  
Vol 9 (4) ◽  
pp. 1200-1205 ◽  
Author(s):  
Leslie J. Lyons ◽  
Tom Derrah ◽  
Steven Sharpe ◽  
Seiyoung Yoon ◽  
Scott Beecher ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Image Position

Abstract

scholarly journals SYNTHESIS OF CELLULOSE ACETATE FROM OIL PALM EMPTY FRUIT BUNCH AND ITS PROPERTIES AS POLYMER ELECTROLYTE MEMBRANES ON LITHIUM ION BATTERY

2018 ◽  
Vol 15 (2) ◽  
pp. 111 ◽  
Author(s):  
Nurhadini Nurhadini ◽  
I Made Arcana
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion Battery ◽  
Cellulose Acetate ◽  
Polymer Electrolyte ◽  
Oil Palm ◽  
Functional Group ◽  
Lithium Ion ◽  
Polymer Electrolyte Membranes ◽  
Empty Fruit Bunch ◽  
Electrolyte Membranes

Biodegradable polymer electrolyte utilization on lithium ion battery is increasingly considered to prevent any waste. This study was conducted to synthesis cellulose acetate from oil palm empty fruit bunch and its properties as polymer electrolyte membranes on lithium ion battery. This study was done by extracting cellulose from oil palm empty fruit bunch. That cellulose was acetylated become cellulose acetate and characterized its functional group. Further, polymer electrolyte was synthesized with composition 25/60/15(%b/b) (SAS/PEO/LiClO4). The properties of polymer electrolyte membranes were characterized by analysis thermal properties, ionic conductivity and mechanical properties. Based on functional group data, synthetic cellulose acetate had similar the main functional group with commercial cellulose acetate. Synthetic cellulose acetate contained 27% acetyl with 1,4 substitution degree. Analysis thermal properties showed that the decomposition of SAS/PEO/LiClO4 polymer electrolyte membranes was started above 260oC.  The ionic conductivity 10,81 x 10-4 S/cm of  these polymer electrolyte membranes was 10,81 x 10-4 S/cm. Analysis of mechanic properties were 0,05 MPa stress, 14,23 MPa elongation and 0,35 MPa Modulus Young. SAS/PEO/LiClO4 polymer electrolyte membranes had higher ionic conductivity than SAK/PEO/LiClO4 polymer electrolyte membranes. However, SAS/PEO/LiClO4 polymer electrolyte membranes had lower thermal and mechanic properties than SAK/PEO/LiClO4 polymer electrolyte membranes.  

scholarly journals Ultrahigh Capacity Retention of Li2ZrO3-Coated Ni-rich LNCM811 Cathode Material through Covalent Interfacial Engineering

2021 ◽  
Author(s):  
Zhangxian Chen ◽  
Qiuge Zhang ◽  
Weijian Tang ◽  
Zhaoguo Wu ◽  
Juxuan Ding ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Battery ◽  
Cathode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Side Reaction ◽  
Capacity Retention ◽  
Interfacial Engineering ◽  
Electrochemical Capacity ◽  
Electrochemical Cycling

Nickel-rich LiNiCoMnO (LNCM811) is a promising lithium-ion battery cathode material, whereas the surface-sensitive issues (i.e., side reaction and oxygen loss) occurring on LNCM811 particles significantly degrade their electrochemical capacity retentions. A uniform LiZrO coating layer can effectively mitigate the problem by preventing these issues. Instead of the normally used weak hydrogen-bonding interaction, we present a covalent interfacial engineering for the uniform LiZrO coating on LiNiCoMnO materials. Results indicate that the strong covalent interactions between citric acid and NiCoMn(OH) precursor effectively promote the adsorption of ZrO coating species on NiCoMn(OH) precursor, which is eventually converted to uniform LiZrO coating layers of about 7 nm after thermal annealing. The uniform LiZrO coating endows LNCM811 cathode materials with an exceptionally high capacity retention of 98.7% after 300 cycles at 1 C. This work shows the great potential of covalent interfacial engineering for improving the electrochemical cycling capability of Ni-rich lithium-ion battery cathode materials.

Ionic and electronic conductivities of atomic layer deposition thin film coated lithium ion battery cathode particles

RSC Advances ◽  
2016 ◽  
Vol 6 (101) ◽  
pp. 98768-98776 ◽  
Author(s):  
Rajankumar L. Patel ◽  
Jonghyun Park ◽  
Xinhua Liang
Keyword(s):  
Thin Film ◽  
Life Cycle ◽  
Ionic Conductivity ◽  
Atomic Layer Deposition ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Atomic Layer ◽  
Layer Deposition ◽  
Electronic Conductivities ◽  
Improved Performance

The ionic and electronic conductivities of ceria ALD-coated and uncoated LiMn2O4 and LiMn1.5Ni0.5O4 samples were studied. The ionic conductivity of the ceria films resulted in the improved performance and longer life cycle of the CeO2 ALD-coated samples.

Improving Ionic Conductivity and Lithium-Ion Transference Number in Lithium-Ion Battery Separators

2016 ◽  
Vol 8 (48) ◽  
pp. 32637-32642 ◽  
Author(s):  
Raphael Zahn ◽  
Marie Francine Lagadec ◽  
Michael Hess ◽  
Vanessa Wood
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Transference Number ◽  
Lithium Ion Transference Number

scholarly journals Structural lithium ion battery electrolytesviareaction induced phase-separation

2017 ◽  
Vol 5 (48) ◽  
pp. 25652-25659 ◽  
Author(s):  
N. Ihrner ◽  
W. Johannisson ◽  
F. Sieland ◽  
D. Zenkert ◽  
M. Johansson
Keyword(s):  
Phase Separation ◽  
Ionic Conductivity ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
High Ionic Conductivity ◽  
Structural Battery

Novel structural battery electrolytes with both high ionic conductivity and stiffness in combination.

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