A facile strategy to improve the cycle stability of 4.45 V LiCoO2 cathode in gel electrolyte system via succinonitrile additive under elevated temperature

2019 ◽  
Vol 341 ◽  
pp. 115049 ◽  
Author(s):  
Ning Xu ◽  
Hebing Zhou ◽  
Youhao Liao ◽  
Guanjie Li ◽  
Mengqing Xu ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Gel Electrolyte ◽  
Cycle Stability ◽  
Electrolyte System ◽  
Licoo2 Cathode

Effect of Different Filler Groups on Ionic Behavior of PVdF Gel Electrolyte System

2014 ◽  
Vol 1 (1) ◽  
pp. 26-35 ◽  
Author(s):  
Mrigank Dwivedi ◽  
◽  
Nidhi Asthana ◽  
Kamlesh Pandey
Keyword(s):  
Gel Electrolyte ◽  
Electrolyte System

Electrochemical Properties of Porous LiAlXMn2-XO4 Powders Prepared by Immersion of Li and Al Nitrate Solution to Spherical Mn2O3 Powders

2009 ◽  
Vol 421-422 ◽  
pp. 467-470 ◽  
Author(s):  
Kazunori Nishiwaki ◽  
Takashi Ogihara ◽  
Shigeru Motohira ◽  
Takayuki Kodera
Keyword(s):  
Particle Size ◽  
Elevated Temperature ◽  
Electrochemical Properties ◽  
Spray Pyrolysis ◽  
Spinel Phase ◽  
Nitrate Solution ◽  
Cycle Stability ◽  
Spherical Morphology ◽  
Sem Observation

Spherical porous Mn2O3 powders were prepared by spray pyrolysis. Li and Al nitrate solution were immersed to porous Mn2O3 powders to obtain LiAlXMn2-XO4. Homogeneous LiAlXMn2-XO4 powders were formed by the calcination at 800°C. SEM observation showed that they had spherical morphology with particle size of about 1m. XRD revealed that the spinel phase was obtained by heating at 800°C. LiAlXMn2-XO4 cathode obtained by this method exhibited higher rechargeable capacity and cycle stability than that obtained by spray pyrolysis. The doping of Al ion was effective for the cycle stability at elevated temperature.

Improvement of cycle stability at elevated temperature and high rate for LiNi0.5−xCuxMn1.5O4 cathode material after Cu substitution

2013 ◽  
Vol 48 (4) ◽  
pp. 1606-1611 ◽  
Author(s):  
Ou Sha ◽  
Zhi Qiao ◽  
Shaoliang Wang ◽  
Zhiyuan Tang ◽  
Hao Wang ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Cathode Material ◽  
High Rate ◽  
Cycle Stability ◽  
Cu Substitution

Immittance Studies of DBP Plasticized Salicylic Acid Doped PMMA Based Gel Electrolytes

2006 ◽  
Vol 517 ◽  
pp. 97-100 ◽  
Author(s):  
M.I.N. Isa ◽  
S.R. Majid ◽  
A.K. Arof
Keyword(s):  
Activation Energy ◽  
Salicylic Acid ◽  
Room Temperature ◽  
Ethylene Carbonate ◽  
Gel Electrolyte ◽  
Electrolyte System ◽  
Conductivity Activation Energy ◽  
Gel Electrolytes ◽  
Tan Δ ◽  
Oxygen Site

A gel electrolyte system was prepared by dissolving poly(methyl methacrylate) in ethylene carbonate and propylene carbonate doped with salicylic acid and plasticized with dibutylphthalate (DBP). The gel was heated to 70 0C before it was cast into glass dishes. The composition of the electrolytes was 35 wt% EC, 30 wt% PC, 5 wt% SA, 5wt% DBP and 25 wt% PMMA. The gel electrolyte was sandwiched between two stainless-steel blocking electrodes and impedance measurements were conducted. The conductivity of the gel electrolyte was 2.03 x 10-4 S cm-1 at room temperature. The conductivity activation energy was obtained from the log σ versus 103/T graph. Loss tangent was calculated at every frequency for all temperatures. From the tan δ versus frequency plot, the activation energy of relaxation of the ion was calculated and plotted as ln τ versus 103/T. The conductivity activation energy value was (0.21 ± 0.04) eV and the activation energy of relaxation was (0.24±0.07) eV. The similarity between these activation energies imply that the protons ‘hop’ from one electronegative oxygen site in DBP to another.

Thermal and electrical studies on composite gel electrolyte system: PEG–PVA–(NH4CH2CO2)2

2009 ◽  
Vol 82 (6) ◽  
pp. 421-432 ◽  
Author(s):  
Sateesh Kumar Patel ◽  
Arvind Awadhia ◽  
S.L. Agrawal
Keyword(s):  
Gel Electrolyte ◽  
Electrolyte System ◽  
Electrical Studies ◽  
Composite Gel

One-step solvothermal preparation of Fe3O4/graphene composites at elevated temperature and their application as anode materials for lithium-ion batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (104) ◽  
pp. 59981-59989 ◽  
Author(s):  
Laiying Jing ◽  
Aiping Fu ◽  
Hongliang Li ◽  
Jingquan Liu ◽  
Peizhi Guo ◽  
...  
Keyword(s):  
High Temperature ◽  
Elevated Temperature ◽  
Anode Materials ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Solvothermal Process ◽  
Cycle Stability ◽  
High Reversible Capacity ◽  
One Step ◽  
Solvothermal Preparation

Fe3O4/graphene composites with high reversible capacity and outstanding cycle stability were prepared within 6 h by a one-step high-temperature solvothermal process.

scholarly journals Structure, morphology, thermal and conductivity properties of gel electrolyte system based on polyvinyl chloride and LiClO4

2018 ◽  
Vol 19 (1) ◽  
pp. 43-47 ◽  
Author(s):  
V.V. Klepko ◽  
◽  
V.I. Slisenko ◽  
K.M. Sukhyy ◽  
S.D. Nesin ◽  
...  
Keyword(s):  
Polyvinyl Chloride ◽  
Gel Electrolyte ◽  
Electrolyte System ◽  
Structure Morphology
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