scholarly journals Amorphous LiCoO2-based Positive Electrode Active Materials with Good Formability for All-Solid-State Rechargeable Batteries

MRS Advances ◽  
2018 ◽  
Vol 3 (23) ◽  
pp. 1319-1327 ◽  
Author(s):  
Kenji Nagao ◽  
Yuka Nagata ◽  
Atsushi Sakuda ◽  
Akitoshi Hayashi ◽  
Masahiro Tatsumisago
Keyword(s):  
Solid State ◽  
Electrode Materials ◽  
Active Material ◽  
Ionic Conductivities ◽  
Lithium Ion ◽  
Rechargeable Batteries ◽  
Positive Electrode ◽  
Active Materials ◽  
Ceramic Electrolyte ◽  
Xrd Patterns

ABSTRACTAmorphous LiCoO2-based positive electrode materials are synthesized by a mechanical milling technique. As a lithium oxy-acid, Li2SO4, Li3PO4, Li3BO3, Li2CO3, and LiNO3 are selected and milled with LiCoO2. XRD patterns indicate that reaction between LiCoO2 and these lithium oxy-acids proceeds. Amorphization mainly occurs, and several broad peaks attributable to cubic LiCoO2 are observed in all the samples. These amorphous active materials show mixed conductivities of electron and lithium ion. All-solid-state cells using the prepared amorphous active materials and the Li2.9B0.9S0.1O3.1 glass-ceramic electrolyte are fabricated and their charge-discharge properties are examined. The cells with only the 80LiCoO2·20Li2SO4 (mol%) and the 80LiCoO2·20Li3PO4 active materials function as secondary batteries. This is because higher lithium ionic conductivities are obtained in the 80LiCoO2·20Li2SO4 and 80LiCoO2·20Li3PO4 active materials than in the others. The largest capacity is obtained in the cell with the 80LiCoO2·20Li2SO4 active material because of its good formability and high lithium ionic conductivity. In addition, the cell with the 80LiCoO2·20Li2SO4 positive electrode active material shows the better cycle and rate performance than that with the crystalline LiCoO2. It is noted that the amorphization with lithium oxy-acids is a promising technique for achieving a novel active material with better electrochemical performance.

Rechargeable organic lithium-ion batteries using electron-deficient benzoquinones as positive-electrode materials with high discharge voltages

2014 ◽  
Vol 2 (45) ◽  
pp. 19347-19354 ◽  
Author(s):  
Takato Yokoji ◽  
Hiroshi Matsubara ◽  
Masaharu Satoh
Keyword(s):  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Rechargeable Batteries ◽  
Positive Electrode ◽  
Active Materials ◽  
High Discharge ◽  
Positive Electrode Materials

Electron-deficient benzoquinones bearing perfluoroalkyl groups were examined as cathode active materials in rechargeable batteries. The cells afforded higher discharge voltages than those using electron-rich benzoquinones.

scholarly journals Solid-State NMR of the Family of Positive Electrode Materials Li2Ru1–ySnyO3 for Lithium-Ion Batteries

2014 ◽  
Vol 26 (24) ◽  
pp. 7009-7019 ◽  
Author(s):  
Elodie Salager ◽  
Vincent Sarou-Kanian ◽  
M. Sathiya ◽  
Mingxue Tang ◽  
Jean-Bernard Leriche ◽  
...  
Keyword(s):  
Solid State ◽  
Lithium Ion Batteries ◽  
Solid State Nmr ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Positive Electrode ◽  
The Family ◽  
Positive Electrode Materials

scholarly journals A reversible oxygen redox reaction in bulk-type all-solid-state batteries

2020 ◽  
Vol 6 (25) ◽  
pp. eaax7236 ◽  
Author(s):  
Kenji Nagao ◽  
Yuka Nagata ◽  
Atsushi Sakuda ◽  
Akitoshi Hayashi ◽  
Minako Deguchi ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Redox Reaction ◽  
Large Scale ◽  
Electrode Materials ◽  
Active Material ◽  
Lithium Ion ◽  
Stable Operation ◽  
Solid State Batteries ◽  
All Solid State Batteries

An all-solid-state lithium battery using inorganic solid electrolytes requires safety assurance and improved energy density, both of which are issues in large-scale applications of lithium-ion batteries. Utilization of high-capacity lithium-excess electrode materials is effective for the further increase in energy density. However, they have never been applied to all-solid-state batteries. Operational difficulty of all-solid-state batteries using them generally lies in the construction of the electrode-electrolyte interface. By the amorphization of Li2RuO3 as a lithium-excess model material with Li2SO4, here, we have first demonstrated a reversible oxygen redox reaction in all-solid-state batteries. Amorphous nature of the Li2RuO3-Li2SO4 matrix enables inclusion of active material with high conductivity and ductility for achieving favorable interfaces with charge transfer capabilities, leading to the stable operation of all-solid-state batteries.

Polymer-Based Lithium Rechargeable Batteries

1990 ◽  
Vol 210 ◽  
Author(s):  
Marina Mastragostino
Keyword(s):  
Solid State ◽  
Polymer Electrolyte ◽  
Room Temperature ◽  
Electrode Materials ◽  
Rechargeable Batteries ◽  
Positive Electrode ◽  
Lithium Rechargeable Batteries ◽  
Stability Data ◽  
Positive Electrode Materials ◽  
Temperature Applications

AbstractSolid-state lithium rechargeable batteries with polypyrrole-based positive electrode materials together with a new polymer electrolyte designed for room temperature applications are investigated. The cyclability and stability data are reported.

scholarly journals Electrolyte Oxidation Pathways in Lithium-Ion Batteries

2020 ◽  
Author(s):  
Bernardine L. D. Rinkel ◽  
David Hall ◽  
Israel Temprano ◽  
Clare P. Grey
Keyword(s):  
Electrode Materials ◽  
Active Material ◽  
Reactive Oxygen ◽  
Lithium Ion ◽  
Chemical Oxidation ◽  
Surface Reactivity ◽  
Positive Electrode ◽  
Clear Understanding ◽  
Ion Conducting ◽  
Electrolyte Oxidation

<p>The mitigation of decomposition reactions of lithium-ion battery electrolyte solutions is of critical importance in controlling device lifetime and performance. However, due to the complexity of the system, exacerbated by the diverse set of electrolyte compositions, electrode materials, and operating parameters, a clear understanding of the key chemical mechanisms remains elusive. In this work, operando pressure measurements, solution NMR, and electrochemical methods were combined to study electrolyte oxidation and reduction at multiple cell voltages. Two-compartment LiCoO<sub>2</sub>/Li cells were cycled with a lithium-ion conducting glass-ceramic separator so that the species formed at each electrode could be identified separately and further reactions of these species at the opposite electrode prevented. One principal finding is that chemical oxidation (with an onset voltage of ~4.7 V vs Li/Li<sup>+</sup> for LiCoO<sub>2</sub>), rather than electrochemical reaction, is the dominant decomposition process at the positive electrode surface in this system. This is ascribed to the well-known release of reactive oxygen at higher states-of-charge, indicating that reactions of the electrolyte at the positive electrode are intrinsically linked to surface reactivity of the active material. Soluble electrolyte decomposition products formed at both electrodes are characterised, and a detailed reaction scheme is constructed to rationalise the formation of the observed species. The insights on electrolyte decomposition through reactions with reactive oxygen species identified through this work have direct impact on understanding and mitigating degradation in high voltage/higher energy density LiCoO<sub>2</sub>-based cells,<sub> </sub>and more generally for cells containing nickel-containing cathode materials (e.g. LiNi<sub>x</sub>Mn<sub>y</sub>Co<sub>z</sub>O<sub>2</sub>; NMCs), as they lose oxygen at lower operating voltages.</p>

scholarly journals Electrolyte Oxidation Pathways in Lithium-Ion Batteries

2020 ◽  
Author(s):  
Bernardine L. D. Rinkel ◽  
David Hall ◽  
Israel Temprano ◽  
Clare P. Grey
Keyword(s):  
Electrode Materials ◽  
Active Material ◽  
Reactive Oxygen ◽  
Lithium Ion ◽  
Chemical Oxidation ◽  
Surface Reactivity ◽  
Positive Electrode ◽  
Clear Understanding ◽  
Ion Conducting ◽  
Electrolyte Oxidation

<p>The mitigation of decomposition reactions of lithium-ion battery electrolyte solutions is of critical importance in controlling device lifetime and performance. However, due to the complexity of the system, exacerbated by the diverse set of electrolyte compositions, electrode materials, and operating parameters, a clear understanding of the key chemical mechanisms remains elusive. In this work, operando pressure measurements, solution NMR, and electrochemical methods were combined to study electrolyte oxidation and reduction at multiple cell voltages. Two-compartment LiCoO<sub>2</sub>/Li cells were cycled with a lithium-ion conducting glass-ceramic separator so that the species formed at each electrode could be identified separately and further reactions of these species at the opposite electrode prevented. One principal finding is that chemical oxidation (with an onset voltage of ~4.7 V vs Li/Li<sup>+</sup> for LiCoO<sub>2</sub>), rather than electrochemical reaction, is the dominant decomposition process at the positive electrode surface in this system. This is ascribed to the well-known release of reactive oxygen at higher states-of-charge, indicating that reactions of the electrolyte at the positive electrode are intrinsically linked to surface reactivity of the active material. Soluble electrolyte decomposition products formed at both electrodes are characterised, and a detailed reaction scheme is constructed to rationalise the formation of the observed species. The insights on electrolyte decomposition through reactions with reactive oxygen species identified through this work have direct impact on understanding and mitigating degradation in high voltage/higher energy density LiCoO<sub>2</sub>-based cells,<sub> </sub>and more generally for cells containing nickel-containing cathode materials (e.g. LiNi<sub>x</sub>Mn<sub>y</sub>Co<sub>z</sub>O<sub>2</sub>; NMCs), as they lose oxygen at lower operating voltages.</p>

scholarly journals Strategies for improving rechargeable lithium-ion batteries: From active materials to CO2 emissions

2021 ◽  
Vol 10 (1) ◽  
pp. 1993-2026
Author(s):  
Shailendra Chiluwal ◽  
Apparao M. Rao ◽  
Ramakrishna Podila
Keyword(s):  
Electrode Materials ◽  
Lithium Ion ◽  
Rechargeable Batteries ◽  
Cell Level ◽  
Active Materials ◽  
Active Electrode ◽  
Future Directions ◽  
Battery Materials ◽  
Alloy Type ◽  
Technological Developments

Abstract The recent past witnessed rapid strides in the development of lithium-based rechargeable batteries. Here, some key technological developments in intercalation, conversion, and alloy-type anode and cathode materials are reviewed. Beyond the active electrode materials, we also discuss strategies for improving electrolytes and current collectors. An outlook with remarks on easily misleading battery characteristics reported in the literature, impending challenges, and future directions in lithium-based rechargeable batteries is provided. Lastly, the authors also emphasize the need for lab-based research at the pouch cell level with practical energy densities, in addition to discussing scalability and economic viability of different battery materials and their architectures.

scholarly journals Feasibility Study for Sustainable Use of Lithium-Ion Batteries Considering Different Positive Electrode Active Materials under Various Driving Cycles by Using Cell to Electric Vehicle (EV) Simulation

2020 ◽  
Vol 12 (22) ◽  
pp. 9764
Author(s):  
Heewon Choi ◽  
Nam-gyu Lim ◽  
Seong Jun Lee ◽  
Jungsoo Park
Keyword(s):  
Thermal Stability ◽  
Electric Vehicle ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Positive Electrode ◽  
Battery Pack ◽  
Active Materials ◽  
Battery Cell ◽  
Driving Cycles ◽  
Positive Electrode Materials

Electric vehicles have been issued to achieve sustainable mobility. Main factors to sustainable electric vehicle (EV) are that lithium-ion battery (LIB) has to maintain lower cost, lighter weight, SOC (state of charge), thermal stability, and driving ranges. In this study, nickel-cobalt-manganese (NCM), lithium iron phosphate (LFP), and lithium manganese oxide (LMO), which are used as representative positive electrode materials, were applied to battery cells. Then, the battery characteristics at the system level, according to the application of different positive electrode materials, were compared and analyzed. To this end, each of the 18650 cylindrical battery cells was modeled by applying different positive electrode active materials. The battery modeling was based on a database provided by GT(Gamma Technologies)-AutoLion. To analyze the thermal stability and capacity loss according to the temperature of the battery cell by applying different C-rate discharge and temperature conditions for each positive electrode active material, an electrochemical-based zero-dimensional (0D) analysis was performed. A test was also performed to determine the model feasibility by using a MACCOR 4300 battery charger/discharger. Moreover, a lumped battery pack modeling was performed to extend the modeled battery cell to an EV battery pack. By combining the pack and one-dimensional (1D) EV models, various driving cycles were described to investigate the battery performance at the vehicle level. It was found that the 0D electrochemistry-coupled 1D vehicle model could well predict the feasible tendencies considering various positive electrode materials of the LIB battery cell.

Recent progress in rechargeable lithium batteries with organic materials as promising electrodes

2016 ◽  
Vol 4 (19) ◽  
pp. 7091-7106 ◽  
Author(s):  
Jian Xie ◽  
Qichun Zhang
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Batteries ◽  
Recent Progress ◽  
Electrode Materials ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Positive Electrode ◽  
Rechargeable Lithium Batteries ◽  
Organic Electrode ◽  
Negative Electrode Materials

Different organic electrode materials in lithium-ion batteries are divided into three types: positive electrode materials, negative electrode materials, and bi-functional electrode materials, and are further discussed.

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