scholarly journals Effect of Temperature on the Aging rate of Li Ion Battery Operating above Room Temperature

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Feng Leng ◽  
Cher Ming Tan ◽  
Michael Pecht
Keyword(s):  
Room Temperature ◽  
Effect Of Temperature ◽  
Li Ion Battery ◽  
Aging Rate ◽  
Li Ion

Hexagonal Boron Nitride-Based Electrolyte Composite for Li-Ion Battery Operation from Room Temperature to 150 °C

2016 ◽  
Vol 6 (12) ◽  
pp. 1600218 ◽  
Author(s):  
Marco-Tulio F. Rodrigues ◽  
Kaushik Kalaga ◽  
Hemtej Gullapalli ◽  
Ganguli Babu ◽  
Arava Leela Mohana Reddy ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Room Temperature ◽  
Hexagonal Boron Nitride ◽  
Li Ion Battery ◽  
Li Ion

scholarly journals H2O2assisted room temperature oxidation of Ti2C MXene for Li-ion battery anodes

Nanoscale ◽  
2016 ◽  
Vol 8 (14) ◽  
pp. 7580-7587 ◽  
Author(s):  
Bilal Ahmed ◽  
Dalaver H. Anjum ◽  
Mohamed N. Hedhili ◽  
Yury Gogotsi ◽  
Husam N. Alshareef
Keyword(s):  
Room Temperature ◽  
Li Ion Battery ◽  
Temperature Oxidation ◽  
Li Ion

Effects of Mg2+ Doping on Performance of Anode Material Li4Ti5O12

2013 ◽  
Vol 779-780 ◽  
pp. 307-310
Author(s):  
Neng Wei Wang ◽  
Zai Chun Huang ◽  
Xu Mei Cui ◽  
Zhao Yu Wu
Keyword(s):  
Anode Material ◽  
Room Temperature ◽  
Lithium Titanate ◽  
Raw Material ◽  
Constant Current ◽  
Li Ion Battery ◽  
X Ray Diffraction ◽  
X Ray ◽  
Li Ion ◽  
Scanning Electron

Anode material Li4Ti5O12 was prepared by the method of solid-state reaction at high temperature. In the experiment, it was utilized by undoping and a small amount of Mg2+ doping with raw material respectively. The morphology of powder was observed by scanning electron microscopy (SEM), the phase analysis was done by X-ray diffraction analysis (XRD), and the charging and discharging tests with constant current were also carried out at room temperature. The results showed that little effect was on the particle size by a small amount of Mg2+ doping, the change of the structure of the powder material was not caused, but the conductivity of Li4Ti5O12 anode material was increased, the capacity and stability of the charging and discharging cycles were raised. It fully proved that Mg2+ doping was relatively effective. Keywords: Li-ion battery;lithium titanate (Li4Ti5O12); doping;charging and discharging.

Safety Characteristics of the Li4Ti5O12/LiMn2O4 Li-Ion Battery

2006 ◽  
Vol 972 ◽  
Author(s):  
Ilias Belharouak ◽  
Wenquan Lu ◽  
Khalil Amine
Keyword(s):  
Room Temperature ◽  
Negative Electrode ◽  
Li Ion Battery ◽  
Thermal Gravimetric ◽  
Scanning Calorimetry ◽  
Oxygen Loss ◽  
Li Ion ◽  
Negative Electrode Material ◽  
Acetonitrile Medium ◽  
Hexane Solution

AbstractLi4+xTi4O12 and Li1-yMn2O4 materials have been respectively prepared by a chemical lithiation of Li4Ti4O12 in the presence of an excess of butylithium (LiC4H9) in hexane solution and chemical delithiation of LiMn2O4 spinel using NO2BF4 oxidizer in an acetonitrile medium. The thermal gravimetric results show that Li1-yMn2O4 releases oxygen starting from 200°C with an overall oxygen loss of 6 wt% at 500 °C, whereas Li4+xTi4O12 gains oxygen starting from 200 °C with an overall oxygen gain of 4 wt % at 500 °C. The reactivity of the Li4+xTi4O12 and Li1-yMn2O4 powders in the presence of electrolytes was investigated by a differential scanning calorimetry (DSC) between room temperature and 375°C, and compared to a lithiated graphite in the case of the Li4+xTi4O12 negative electrode material.

Novel Low-Temperature Electrolyte for Li-Ion Battery

2011 ◽  
Vol 287-290 ◽  
pp. 1283-1289 ◽  
Author(s):  
Yong Huan Ren ◽  
Chun Wei Yang ◽  
Bo Rong Wu ◽  
Cun Zhong Zhang ◽  
Shi Chen ◽  
...  
Keyword(s):  
Low Temperature ◽  
Room Temperature ◽  
Poor Performance ◽  
Temperature Series ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Half Cell ◽  
Li Ion ◽  
Charge Discharge ◽  
Discharge Curves

In order to overcome the limitation of Li-ion batteries at low temperature, series of electrolytes are prepared. Specially，FEC is chose to work as electrolyte solvent to enhance its poor performance. Electrolytes are composed of EC, PC, EMC and FEC, while VC is added as additive. Electrolytes with different ratio are examined, then the electrolyte with the best conductivity is studied in detail. Its characters are evaluated by CV, EIS and charge/discharge tests et al. The discharge curves of LiCo1/3Ni1/3Mn1/3O2/Li show that battery with this FEC-based electrolyte at 233K could yield 51% of room temperature capacity. Most obviously, MCMB/Li half cell with this electrolyte could fill 91% of its normal capacity at 233K while batteries barely charge any with traditional electrolyte（LiPF6/EC+DMC(1:1 in volume)）. This nice charge behavior won’t emerge unless the conductivity could basically meet the demand at 233K. The property of FEC-based electrolyte outweighs commercialized electrolyte as this article confirms.

Improvement of the Electrochemical Properties of LiMn2O4 by Doping Rare Earth Element Ce

2011 ◽  
Vol 686 ◽  
pp. 716-719 ◽  
Author(s):  
Hai Lang Zhang ◽  
Ren Ren ◽  
Jing An
Keyword(s):  
Rare Earth ◽  
High Temperature ◽  
Room Temperature ◽  
Earth Element ◽  
Spinel Phase ◽  
Specific Capacity ◽  
Li Ion Battery ◽  
Discharge Specific Capacity ◽  
Li Ion ◽  
Charge Discharge

A series of cathode materials for Li-ion battery, spinel LiMn2-xCexO4(x=0-0.03), were synthesized by the method of solid-state reaction at high temperature. The XRD data showed that all the synthesis samples were pure spinel phase. The results of charge-discharge tests show that LiMn1.98Ce0.02O4 has the highest discharge specific capacity of 119.6 mAh/g, and the discharge specific capacity of the material was 108.5 mAh/g after 50 cycles at room temperature with a retention of 91.0%, and the coulombic coefficient was still high up to 99.8%.

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