The enhanced Jahn-Teller distortion boosts molybdenum trioxide superior lithium ion storage capability

2021 ◽  
Author(s):  
Henghan Dai ◽  
Jin Yuan Zhou ◽  
Gang Qin ◽  
Gengzhi Sun
Keyword(s):  
Energy Density ◽  
Electric Vehicles ◽  
Transition Metal Oxides ◽  
Molybdenum Trioxide ◽  
Lithium Ion ◽  
Teller Distortion ◽  
Portable Electronics ◽  
Ion Storage ◽  
Jahn Teller ◽  
Jahn Teller Distortion

Upgrading the energy density and cycle life of current lithium ion batteries are urgently needed for developing advanced portable electronics and electric vehicles. Amorphous transition metal oxides (TMO) with inherent...

Double the Capacity of Manganese Spinel for Lithium‐Ion Storage by Suppression of Cooperative Jahn–Teller Distortion

2020 ◽  
Vol 10 (34) ◽  
pp. 2000363 ◽  
Author(s):  
Changjian Zuo ◽  
Zongxiang Hu ◽  
Rui Qi ◽  
Jiajie Liu ◽  
Zhibo Li ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Teller Distortion ◽  
Ion Storage ◽  
Jahn Teller ◽  
Jahn Teller Distortion

Phase Transition of LiMn2O4 Spinel and its Application for Lithium Ion Secondary Battery

1997 ◽  
Vol 496 ◽  
Author(s):  
Junji Tabuchi ◽  
Tatsuji Numata ◽  
Yuichi Shimakawa ◽  
Masato Shirakata
Keyword(s):  
Phase Transition ◽  
Lithium Ion ◽  
Electrochemical Characteristics ◽  
Teller Distortion ◽  
Limn2o4 Spinel ◽  
Structure Changes ◽  
Jahn Teller ◽  
Initial Charge ◽  
Lower Temperature ◽  
Jahn Teller Distortion

ABSTRACTLiMn2O4 has a phase transition at room temperature, which is caused by Jahn-Teller distortion. DC resistivity of LiMn2O4 shows an anomaly at the transition temperature, while no such anomaly is observed in samples with excess lithium. X-ray diffraction patterns of LiMn2O4reveal that the crystal structure changes from cubic at higher temperature to orthorombic, as a first approximation, at lower temperature. However, no differences in initial charge-discharge curve are observed, which means that the Jahn-Teller distortion has no effect on electrochemical characteristics. The authors have succeeded in mass-producing lithium ion secondary batteries with a manganese spinel cathode.

scholarly journals Lattice Compensation to Jahn–Teller Distortion in Na-Rich Manganese Hexacyanoferrate for Li-Ion Storage: An Operando Study

2020 ◽  
Vol 3 (6) ◽  
pp. 5728-5733 ◽  
Author(s):  
Angelo Mullaliu ◽  
Mattia Gaboardi ◽  
Jasper Rikkert Plaisier ◽  
Stefano Passerini ◽  
Marco Giorgetti
Keyword(s):  
Teller Distortion ◽  
Ion Storage ◽  
Jahn Teller ◽  
Li Ion ◽  
Jahn Teller Distortion

scholarly journals Sodium Batteries: A Review on Sodium-Sulfur and Sodium-Air Batteries

Electronics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1201 ◽  
Author(s):  
Neha Chawla ◽  
Meer Safa
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Electric Vehicles ◽  
Lithium Ion ◽  
High Energy ◽  
Cycle Life ◽  
High Energy Density ◽  
Portable Electronics ◽  
Sodium Batteries ◽  
Sodium Sulfur

Lithium-ion batteries are currently used for various applications since they are lightweight, stable, and flexible. With the increased demand for portable electronics and electric vehicles, it has become necessary to develop newer, smaller, and lighter batteries with increased cycle life, high energy density, and overall better battery performance. Since the sources of lithium are limited and also because of the high cost of the metal, it is necessary to find alternatives. Sodium batteries have shown great potential, and hence several researchers are working on improving the battery performance of the various sodium batteries. This paper is a brief review of the current research in sodium-sulfur and sodium-air batteries.

Advanced Cathodes for Potassium-Ion Batteries with Layered Transition Metal Oxides: A Review

2021 ◽  
Author(s):  
Wen Li ◽  
Zimo Bi ◽  
Wenxin Zhang ◽  
Jian Wang ◽  
Ranjusha Rajagopalan ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Lithium Ion Batteries ◽  
Electric Vehicles ◽  
Transition Metal Oxides ◽  
Large Scale ◽  
Lithium Ion ◽  
Portable Electronics ◽  
Layered Transition Metal ◽  
Huge Challenge

The development of lithium-ion batteries (LIBs) is facing a huge challenge due to the high cost and insufficient lithium resources. With the large-scale application of electric vehicles and portable electronics,...

scholarly journals Enhanced Performance of LiAl0.1Mn1.9O4 Cathode for Li-Ion Battery via TiN Coating

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 825
Author(s):  
Pinelopi Angelopoulou ◽  
Spyros Kassavetis ◽  
Joan Papavasiliou ◽  
Dimitris Karfaridis ◽  
Grzegorz Słowik ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Capacity Fading ◽  
Spinel Limn2o4 ◽  
Tin Coating ◽  
Teller Distortion ◽  
Jahn Teller ◽  
Li Ion ◽  
Structure Stabilization ◽  
Jahn Teller Distortion

The present work addresses the issues related to the capacity fading of spinel LiMn2O4, such as Mn leaching and Jahn–Teller distortion and suggests an advanced TiN-coated LiAl0.1Mn1.9O4 (LAMO) cathode material as an electrode for lithium-ion batteries. TiN coating layers with the same thickness but a different porosity cover the LiAl0.1Mn1.9O4 electrode via reactive magnetron sputtering, and present promising electrochemical behavior. In contrast with the pristine LiAl0.1Mn1.9O4, the dense TiN-coated LiAl0.1Mn1.9O4 electrode demonstrates a remarkable long-term cycling by reducing the contact area of the electrode/electrolyte interface, resulting in structure stabilization.

scholarly journals Nano-imaging of strain-tuned stripe textures in a Mott crystal

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
A. S. McLeod ◽  
A. Wieteska ◽  
G. Chiriaco ◽  
B. Foutty ◽  
Y. Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metal Oxides ◽  
Electrical Current ◽  
Teller Distortion ◽  
Self Organized ◽  
Imaging Results ◽  
Insulator Metal Transition ◽  
Jahn Teller ◽  
Nano Imaging ◽  
Jahn Teller Distortion

AbstractThe 4d transition metal perovskites Can+1RunO3n+1 have attracted interest for their strongly interacting electronic phases showing pronounced sensitivity to controllable stimuli like strain, temperature, and even electrical current. Through multi-messenger low-temperature nano-imaging, we reveal a spontaneous striped texture of coexisting insulating and metallic domains in single crystals of the bilayer ruthenate Ca3(TixRu1-x)2O7 across its first-order Mott transition at $$T \approx 95$$ T ≈ 95 K. We image on-demand anisotropic nucleation and growth of these domains under in situ applied uniaxial strain rationalized through control of a spontaneous Jahn-Teller distortion. Our scanning nano-susceptibility imaging resolves the detailed susceptibility of coexisting phases to strain and temperature at the transition threshold. Comparing these nano-imaging results to bulk-sensitive elastoresistance measurements, we uncover an emergent “domain susceptibility” sensitive to both the volumetric phase fractions and elasticity of the self-organized domain lattice. Our combined susceptibility probes afford nano-scale insights into strain-mediated control over the insulator-metal transition in 4d transition metal oxides.

Electron Microscopy Investigation of the Cycling-Induced Phase Transformation in LiMnO2 Compounds

1998 ◽  
Vol 548 ◽  
Author(s):  
H. Wang ◽  
Y.-I. Jang ◽  
Y.-M. Chiang
Keyword(s):  
Transition Metal Oxides ◽  
Lithium Concentration ◽  
Local Strain ◽  
Cation Ordering ◽  
Rechargeable Lithium Batteries ◽  
Teller Distortion ◽  
Microscopy Investigation ◽  
Electron Microscopy Investigation ◽  
Jahn Teller ◽  
Jahn Teller Distortion

ABSTRACTLithium transition metal oxides used as intercalation electrodes for rechargeable lithium batteries are widely studied in search of structural stability and improved electrochemical performance. Recent studies showed that the orthorhombic and monoclinic LiMnO2 compounds, unlike LiMn204 spinels, could be cycled on both the 4 V and 2.9 V plateaus with high and stable discharge capacity. In this study, we have performed direct high resolution observations of electrochemically cycled LiMnO2 particles in the fully discharged state. Extensive damage including local strain variation, nanodomain formation, and changes in cation ordering, has been observed. Individual particles retain overall single crystallinity despite having differing structures at the nanodomain level. While cycling causes a macroscopic transformation to spinel cation ordering, the formation of nanodomains differing in cation ordering and/or composition appears to accommodate or prevent the destructive Jahn-Teller distortion that normally occurs at high lithium concentration, thereby resulting in cycling stability.

Electronic Structures in LaTiO3/LaAlO3 Multilayers

2013 ◽  
Vol 771 ◽  
pp. 7-11 ◽  
Author(s):  
Er Jun Kan
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Density Functional ◽  
Orbital Ordering ◽  
Crystal Field Theory ◽  
Teller Distortion ◽  
Jahn Teller ◽  
Important Direction ◽  
Jahn Teller Distortion

We demonstrate the existence of a hidden degree of freedom controlling the orbitalordering in [LaTiO1/[LaAlO5 multilayers with comprehensive density-functional theorycalculations. The orbitals of two-dimensional (2D) 3d1state of Ti atoms in the multilayers alwayscontain large dxy components, which is unexpected from crystal field theory (first Jahn-Tellerdistortion). The competition between first and second Jahn-Teller distortion induces variousmagnetic properties. Thus, transition-metal oxides/non-transition-metal oxides multilayers mayprovide an important direction to manipulate the spin and orbital ordering in magnetic materials.

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