Effect of Ti Substitution for Mn on the Structure of LiNi[sub 0.5]Mn[sub 1.5−x]Ti[sub x]O[sub 4] and Their Electrochemical Properties as Lithium Insertion Material

2004 ◽  
Vol 151 (11) ◽  
pp. A1911 ◽  
Author(s):  
J.-H. Kim ◽  
S.-T. Myung ◽  
C. S. Yoon ◽  
I.-H. Oh ◽  
Y.-K. Sun
Keyword(s):  
Electrochemical Properties ◽  
Lithium Insertion ◽  
Ti Substitution

Spinel Li4Ti5O12/C Composites as Potential Anode Materials of Lithium Batteries

2007 ◽  
Vol 336-338 ◽  
pp. 513-516
Author(s):  
Jun Rong Li ◽  
Zi Long Tang ◽  
Shao Hua Luo ◽  
Jun Biao Lu ◽  
Zhong Tai Zhang
Keyword(s):  
Grain Size ◽  
Electrochemical Properties ◽  
Lithium Batteries ◽  
Anode Materials ◽  
Electronic Conductivity ◽  
Pyrolytic Carbon ◽  
Reversible Capacity ◽  
Lithium Insertion ◽  
Energy Storage Devices ◽  
Storage Devices

Here the spinel Li4Ti5O12/C composites were prepared by a modified high temperature solid-state reaction. The as prepared Li4Ti5O12/C composites showed enhanced electrochemical lithium insertion performance in reversible capacity and rate capabilities. The improved electrochemical properties are attributed to the reduced grain size and the improved electronic conductivity caused by the pyrolytic carbon incorporated into the spinel Li4Ti5O12 particle. The spinel Li4Ti5O12/C composites with improved electrochemical properties may find versatile applications in various energy storage devices.

Synthesis and Electrochemical Properties of Porous Titania Fabricated from Nanosheets

2013 ◽  
Vol 566 ◽  
pp. 111-114 ◽  
Author(s):  
Mitsumasa Sakao ◽  
Norihito Kijima ◽  
Masashi Yoshinaga ◽  
Junji Akimoto ◽  
Takeshi Okutani
Keyword(s):  
Electrochemical Properties ◽  
Spray Drying ◽  
Active Material ◽  
Nitrogen Adsorption ◽  
Mesoporous Structure ◽  
Lithium Insertion ◽  
Lithium Cell ◽  
Porous Titania ◽  
Desorption Isotherms ◽  
Adsorption Desorption

A porous titania was synthesized by spray-drying of titania nanosheets exfoliated by (C4H9)4NOH. Nitrogen adsorption-desorption isotherms showed that the porous titania has a mesoporous structure composed of slit-shaped pores. The porous titania acted as a rechargeable active material in a liquid organic electrolyte lithium cell. An initial lithium insertion capacity was about 150 mAh/g (cut-off voltage of 1.0 V), which approximately correspond to the composition of Li0.45TiO2.

scholarly journals Investigation of Ti‐substitution effects on structural and electrochemical properties of Na 0. 67 Mn 0 . 5 Fe 0 . 5 O 2 battery cells

2020 ◽  
Vol 44 (14) ◽  
pp. 11794-11806
Author(s):  
Serdar Altin ◽  
Sebahat Altundag ◽  
Emine Altin ◽  
Erdinc Oz ◽  
Messaoud Harfouche ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Substitution Effects ◽  
Ti Substitution ◽  
Battery Cells

Contribution of titanium substitution on improving the electrochemical properties of P2-Na0.67Ni0.33Mn0.67O2 cathode material for sodium-ion storage

2020 ◽  
Vol 13 (03) ◽  
pp. 2051010
Author(s):  
Zhijie Cao ◽  
Lijiang Li ◽  
Chaojin Zhou ◽  
Xiaobo Ma ◽  
Hailong Wang
Keyword(s):  
Electrochemical Properties ◽  
Structural Evolution ◽  
Extraction Process ◽  
Sodium Ion ◽  
Electrochemical Performances ◽  
Sodium Ion Batteries ◽  
X Ray Diffraction ◽  
Vacancy Ordering ◽  
Ti Substitution

P2-type Na[Formula: see text]Ni[Formula: see text]Mn[Formula: see text]TixO2[Formula: see text] have been synthesized as cathode materials for sodium-ion batteries, and the effect of Ti substitution on the structural evolution and electrochemical properties of Na[Formula: see text]Ni[Formula: see text]Mn[Formula: see text]O2 are investigated in detail. Analysis results indicate that an appropriate substituted amount of Mn with Ti in the MO2 layers effectively stabilize the crystal lattice of these layered electrodes during the Na[Formula: see text] insertion/extraction process, which significantly improves their electrochemical performances between 2.5 and 4.4[Formula: see text]V. The discharge/charge patterns and in situ X-ray diffraction measurements expound the successful suppression of Na[Formula: see text]/vacancy ordering and multiphase transition during the de-sodiation/sodiation process to resist the structure-induced degradation, which provide possible guidelines for exploring high performances sodium-ion batteries.

Lithium insertion in α′-NaV2O5: Na-pillaring effect on the structural and electrochemical properties

2018 ◽  
Vol 270 ◽  
pp. 224-235 ◽  
Author(s):  
R. Baddour-Hadjean ◽  
L.T.N. Huynh ◽  
N. Emery ◽  
J.P. Pereira-Ramos
Keyword(s):  
Electrochemical Properties ◽  
Lithium Insertion
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