Comparison of Li[Li[sub 1∕9]Ni[sub 1∕3]Mn[sub 5∕9]]O[sub 2], Li[Li[sub 1∕5]Ni[sub 1∕5]Mn[sub 3∕5]]O[sub 2], LiNi[sub 0.5]Mn[sub 1.5]O[sub 4], and LiNi[sub 2∕3]Mn[sub 1∕3]O[sub 2] as High Voltage Positive Electrode Materials

2011 ◽  
Vol 158 (2) ◽  
pp. A187 ◽  
Author(s):  
Fu Zhou ◽  
Xuemei Zhao ◽  
Andrew van Bommel ◽  
Xin Xia ◽  
J. R. Dahn
Keyword(s):  
High Voltage ◽  
Electrode Materials ◽  
Positive Electrode ◽  
Positive Electrode Materials

Identification of the Degradation Processes at High-Voltage Positive Electrode Materials for Li-Ion Batteries Using Operando Analyses

2021 ◽  
Vol MA2021-02 (2) ◽  
pp. 221-221
Author(s):  
Antonin Gajan ◽  
Timothée Lang ◽  
Laure Fillaud ◽  
Julien Demeaux ◽  
Ivan T. Lucas
Keyword(s):  
High Voltage ◽  
Electrode Materials ◽  
Positive Electrode ◽  
Li Ion Batteries ◽  
Degradation Processes ◽  
Li Ion ◽  
Positive Electrode Materials

(Invited) Towards Reversible High-Voltage Multi-Electron Reactions in Alkali-Ion Batteries Using Vanadium Phosphate Positive Electrode Materials

2021 ◽  
Vol MA2021-02 (2) ◽  
pp. 215-215
Author(s):  
Laurence Croguennec ◽  
Edouard Boivin ◽  
Long H.B. Nguyen ◽  
Antonella Iadecola ◽  
Jacob Olchowka ◽  
...  
Keyword(s):  
High Voltage ◽  
Electrode Materials ◽  
Positive Electrode ◽  
Vanadium Phosphate ◽  
Alkali Ion ◽  
Positive Electrode Materials

scholarly journals High-voltage positive electrode materials for lithium-ion batteries

2017 ◽  
Vol 46 (10) ◽  
pp. 3006-3059 ◽  
Author(s):  
Wangda Li ◽  
Bohang Song ◽  
Arumugam Manthiram
Keyword(s):  
Lithium Ion Batteries ◽  
Electric Vehicles ◽  
High Voltage ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Positive Electrode ◽  
Intensive Research ◽  
Portable Electronics ◽  
The Past ◽  
Positive Electrode Materials

The ever-growing demand for advanced rechargeable lithium-ion batteries in portable electronics and electric vehicles has spurred intensive research efforts on high-voltage positive electrode materials over the past decade.

scholarly journals Towards Reversible High-Voltage Multi-Electron Reactions in Alkali-Ion Batteries Using Vanadium Phosphate Positive Electrode Materials

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1428
Author(s):  
Edouard Boivin ◽  
Jean-Noël Chotard ◽  
Christian Masquelier ◽  
Laurence Croguennec
Keyword(s):  
High Voltage ◽  
Electrode Materials ◽  
Positive Electrode ◽  
Vanadium Phosphate ◽  
Voltage Range ◽  
Redox Couples ◽  
Vanadium Phosphates ◽  
Vanadium Redox ◽  
Alkali Ion ◽  
Positive Electrode Materials

Vanadium phosphate positive electrode materials attract great interest in the field of Alkali-ion (Li, Na and K-ion) batteries due to their ability to store several electrons per transition metal. These multi-electron reactions (from V2+ to V5+) combined with the high voltage of corresponding redox couples (e.g., 4.0 V vs. for V3+/V4+ in Na3V2(PO4)2F3) could allow the achievement the 1 kWh/kg milestone at the positive electrode level in Alkali-ion batteries. However, a massive divergence in the voltage reported for the V3+/V4+ and V4+/V5+ redox couples as a function of crystal structure is noticed. Moreover, vanadium phosphates that operate at high V3+/V4+ voltages are usually unable to reversibly exchange several electrons in a narrow enough voltage range. Here, through the review of redox mechanisms and structural evolutions upon electrochemical operation of selected widely studied materials, we identify the crystallographic origin of this trend: the distribution of PO4 groups around vanadium octahedra, that allows or prevents the formation of the vanadyl distortion (O…V4+=O or O…V5+=O). While the vanadyl entity massively lowers the voltage of the V3+/V4+ and V4+/V5+ couples, it considerably improves the reversibility of these redox reactions. Therefore, anionic substitutions, mainly O2− by F−, have been identified as a strategy allowing for combining the beneficial effect of the vanadyl distortion on the reversibility with the high voltage of vanadium redox couples in fluorine rich environments.

scholarly journals A vanadium-based oxide-phosphate-pyrophosphate framework as a 4 V electrode material for K-ion batteries

2021 ◽  
Author(s):  
Mirai Ohara ◽  
A. Shahul Hameed ◽  
Kei Kubota ◽  
Akihiro Katogi ◽  
Kuniko Chihara ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrode Material ◽  
Large Scale ◽  
Electrode Materials ◽  
Electrical Energy ◽  
Positive Electrode ◽  
Electrical Energy Storage ◽  
Positive Electrode Materials

K-ion batteries (KIBs) are promising for large-scale electrical energy storage owing to the abundant resources and the electrochemical specificity of potassium. Among the positive electrode materials for KIBs, vanadium-based polyanionic...

scholarly journals Aluminum substitution for vanadium in the Na3V2(PO4)2F3 and Na3V2(PO4)2FO2 type materials

2019 ◽  
Vol 55 (78) ◽  
pp. 11719-11722 ◽  
Author(s):  
Jacob Olchowka ◽  
Long H. B. Nguyen ◽  
Thibault Broux ◽  
Paula Sanz Camacho ◽  
Emmanuel Petit ◽  
...  
Keyword(s):  
Structural Properties ◽  
Electrode Materials ◽  
Positive Electrode ◽  
Electrochemical Performances ◽  
Al Substitution ◽  
Aluminum Substitution ◽  
Positive Electrode Materials

Investigation of the effects of Al substitution for V on the structural properties and electrochemical performances for two of the most promising positive electrode materials for Na-ion batteries, Na3V2(PO4)2F3 and Na3V2(PO4)2FO2.

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