The determination of trace free acid content in lithium-ion battery electrolytes by coulometric titration in non-aqueous media

The Analyst ◽  
2020 ◽  
Vol 145 (2) ◽  
pp. 582-587
Author(s):  
Cairui Huang ◽  
Congcong Shen ◽  
Ling Jin ◽  
Deyu Qu ◽  
Xiaosong Hu ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Free Acid ◽  
Coulometric Titration ◽  
Aqueous Media ◽  
Lithium Ion ◽  
Analysis Method ◽  
The Past ◽  
Quantitative Analysis Method ◽  
Free Acid Content

A new quantitative analysis method was proposed, aiming at resolving the difficulty encountered in accurately determining the trace content of a free acid in lithium-ion battery electrolytes in the past 30 years.

scholarly journals Effect of Current Rate and Prior Cycling on the Coulombic Efficiency of a Lithium-Ion Battery

Batteries ◽  
2019 ◽  
Vol 5 (3) ◽  
pp. 57 ◽  
Author(s):  
Seyed Madani ◽  
Erik Schaltz ◽  
Søren Knudsen Kær
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Degradation Behavior ◽  
Battery Cell ◽  
The Third ◽  
Capacity Loss ◽  
Battery Cells

The determination of coulombic efficiency of the lithium-ion batteries can contribute to comprehend better their degradation behavior. In this research, the coulombic efficiency and capacity loss of three lithium-ion batteries at different current rates (C) were investigated. Two new battery cells were discharged and charged at 0.4 C and 0.8 C for twenty times to monitor the variations in the aging and coulombic efficiency of the battery cell. In addition, prior cycling was applied to the third battery cell which consist of charging and discharging with 0.2 C, 0.4 C, 0.6 C, and 0.8 C current rates and each of them twenty times. The coulombic efficiency of the new battery cells was compared with the cycled one. The experiments demonstrated that approximately all the charge that was stored in the battery cell was extracted out of the battery cell, even at the bigger charging and discharging currents. The average capacity loss rates for discharge and charge during 0.8 C were approximately 0.44% and 0.45% per cycle, correspondingly.

Lignin-assisted exfoliation of molybdenum disulfide in aqueous media and its application in lithium ion batteries

Nanoscale ◽  
2015 ◽  
Vol 7 (21) ◽  
pp. 9919-9926 ◽  
Author(s):  
Wanshuang Liu ◽  
Chenyang Zhao ◽  
Rui Zhou ◽  
Dan Zhou ◽  
Zhaolin Liu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Molybdenum Disulfide ◽  
Low Cost ◽  
Aqueous Media ◽  
Lithium Ion ◽  
Alkali Lignin

We disclose that alkali lignin is an excellent surfactant for direct aqueous exfoliation of MoS2and the exfoliated nanosheets have great potential for low-cost lithium-ion battery electrodes.

Sign in / Sign up

Export Citation Format

Share Document