scholarly journals Reversible densification in nano-Li2MnO3 cation disordered rock-salt Li-ion battery cathodes

2020 ◽  
Vol 8 (21) ◽  
pp. 10998-11010 ◽  
Author(s):  
Maria Diaz-Lopez ◽  
Philip A. Chater ◽  
Yves Joly ◽  
Olivier Proux ◽  
Jean-Louis Hazemann ◽  
...  
Keyword(s):  
Rock Salt ◽  
Reversible Capacity ◽  
Electrochemical Activation ◽  
Li Ion Battery ◽  
System P ◽  
Li Ion

The electrochemical activation of Li2O in densified nano-Li2MnO3 is responsible for the large reversible capacity (290 mA h g−1) in this system.

Multi-slice nanostructured WS2@rGO with enhanced Li-ion battery performance and a comprehensive mechanistic investigation

2015 ◽  
Vol 17 (44) ◽  
pp. 29824-29833 ◽  
Author(s):  
Honglin Li ◽  
Ke Yu ◽  
Hao Fu ◽  
Bangjun Guo ◽  
Xiang Lei ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Hybrid Structure ◽  
Li Ion Battery ◽  
Cycle Stability ◽  
Reduced Graphene ◽  
Mechanistic Investigation ◽  
Li Ion

We studied the WS2 and reduced graphene oxide hybrid structure for use as anode material in lithium ion batteries. The composite delivered a significant enhanced reversible capacity and cycle stability compared with pristine WS2.

scholarly journals Fabrication of Titanate Thin Film by Electrophoretic Deposition of Tetratitanate Nanosheets for Electrodes of Li-Ion Battery

2008 ◽  
Vol 388 ◽  
pp. 37-40 ◽  
Author(s):  
Shinya Suzuki ◽  
Naoko Sakai ◽  
Masaru Miyayama
Keyword(s):  
Electrophoretic Deposition ◽  
Deposition Time ◽  
Colloidal Suspension ◽  
Reversible Capacity ◽  
Thickness Direction ◽  
Li Ion Battery ◽  
Lithium Diffusion Coefficient ◽  
Lithium Diffusion ◽  
Li Ion ◽  
Titanate Thin Film

Thin films of titanate were prepared by electrophoretic deposition (EPD) of a colloidal suspension of nanosheets, and their lithium intercalation properties were examined. Thickness of the obtained film increased approximately in proportion to the increase in deposition time and concentration of the colloidal suspension used for EPD bath. EPD method was revealed to be a convenient method for layer lamination of nanosheets. The reversible capacity for the obtained film was approximately 170 mA h g-1, and it was in common with anatase-type TiO2 or conventional titanate. Lithium diffusion coefficient along the thickness direction was estimated to be 6 × 10-14 cm2 sec-1.

Puckered-layer-structured germanium monosulfide for superior rechargeable Li-ion battery anodes

2017 ◽  
Vol 5 (12) ◽  
pp. 5685-5689 ◽  
Author(s):  
Geon-Kyu Sung ◽  
Cheol-Min Park
Keyword(s):  
Amorphous Carbon ◽  
Reversible Capacity ◽  
Li Ion Battery ◽  
Li Ion

Puckered-layer-structured germanium monosulfide (GeS) and corresponding amorphous-carbon-decorated nanocomposites (GeS–C) were synthesized and used to fabricate Li-ion battery anodes which displayed remarkable reversible capacity above 1050 mA h g−1after 100 cycles.

A novel coordination polymer based on Co(ii) hexanuclear clusters with azide and carboxylate bridges: structure, magnetism and its application as a Li-ion battery anode

2016 ◽  
Vol 45 (47) ◽  
pp. 19109-19116 ◽  
Author(s):  
Teng Gong ◽  
Xiaobing Lou ◽  
Jia-Jia Fang ◽  
En-Qing Gao ◽  
Bingwen Hu
Keyword(s):  
Coordination Polymer ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Rate Performance ◽  
Li Ion Battery ◽  
High Reversible Capacity ◽  
Hexanuclear Clusters ◽  
Li Ion ◽  
Battery Anode

A Co(ii) coordination polymer with azide and a viologen-based tetracarboxylate ligand shows a relatively high reversible capacity with good cycling and rate performance as lithium-ion battery anode.

Role of Ni, Mn and Co in Layered Rock Salt Cathode Materials for Li-Ion Battery: A DFT Study

2020 ◽  
Vol MA2020-02 (1) ◽  
pp. 61-61
Author(s):  
Yoshiya Fujiwara ◽  
Yoshiyuki Morita ◽  
Hiroshi Ogasa ◽  
Fumika Fujisaki ◽  
Akihiro Kushima
Keyword(s):  
Rock Salt ◽  
Cathode Materials ◽  
Dft Study ◽  
Li Ion Battery ◽  
Layered Rock ◽  
Li Ion

High electrochemical performance and phase evolution of magnetron sputtered MoO2 thin films with hierarchical structure for Li-ion battery electrodes

2014 ◽  
Vol 2 (13) ◽  
pp. 4714-4721 ◽  
Author(s):  
Yulong Liu ◽  
Hong Zhang ◽  
Pan Ouyang ◽  
Wenhao Chen ◽  
Ying Wang ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transformation ◽  
Electrochemical Performance ◽  
Hierarchical Structure ◽  
Rate Capability ◽  
Reversible Capacity ◽  
Phase Evolution ◽  
Li Ion Battery ◽  
Transformation Mechanism ◽  
Li Ion

MoO2 thin films with hierarchical structure demonstrate excellent rate capability and reversible capacity, and the phase transformation mechanism was revealed.

Nanostructured Li2MnO3: a disordered rock salt type structure for high energy density Li ion batteries

2017 ◽  
Vol 5 (41) ◽  
pp. 21898-21902 ◽  
Author(s):  
M. Freire ◽  
O. I. Lebedev ◽  
A. Maignan ◽  
C. Jordy ◽  
V. Pralong
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Rock Salt ◽  
Low Cost ◽  
Reversible Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
High Energy Density Material ◽  
Li Ion

Nowadays the energy storage challenge is to develop a low cost, ecofriendly, high energy density material, showing a reversible capacity higher than 250 mA h g−1.

Density modulated multilayer silicon thin films as li-ion battery anodes

2012 ◽  
Vol 1440 ◽  
Author(s):  
M. Taha Demirkan ◽  
Xin Li ◽  
Bingqing Wei ◽  
Tansel Karabacak
Keyword(s):  
Thin Films ◽  
Coulombic Efficiency ◽  
Specific Capacity ◽  
High Capacity ◽  
Reversible Capacity ◽  
Low Density ◽  
Li Ion Battery ◽  
Silicon Thin Film ◽  
Battery Cell ◽  
Li Ion

AbstractIn this work, we demonstrate a new density modulated multilayered silicon thin film anode approach that can provide a robust high capacity electrode for Li-ion batteries. These films have the ability to tolerate large volume changes due to their controlled microstructure. Silicon films with alternating layers of high/low material density were deposited using a DC sputtering system. Density of the individual layers was controlled by simply changing the working gas pressure during sputtering. Samples of Si films having thicknesses of 460 nm with different number of high/low density layers have been deposited on Cu current collectors. The electrochemical performance of the multilayered anode material was evaluated using a galvanostatic battery testing system at C/10 rate. After reaching a stabilized phase the battery cell showed a high coulombic efficiency of 96% to 99% and reversible specific capacity of 666 mAh g-1 (after 100 cycles). Low-density layers are believed to be acting as compliant sheets during volume expansion making the films more durable compared to conventional Si film anodes. The results indicate that density modulated multilayer Si thin films can be used to improve the mechanical properties of Li-ion battery anodes leading to high reversible capacity values even after high number of cycles.

scholarly journals High-rate aluminium yolk-shell nanoparticle anode for Li-ion battery with long cycle life and ultrahigh capacity

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Sa Li ◽  
Junjie Niu ◽  
Yu Cheng Zhao ◽  
Kang Pyo So ◽  
Chao Wang ◽  
...  
Keyword(s):  
Discharge Rate ◽  
Reversible Capacity ◽  
High Rate ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
One Pot ◽  
Long Cycle Life ◽  
Alloy Type ◽  
High Theoretical Capacity ◽  
Li Ion

Abstract Alloy-type anodes such as silicon and tin are gaining popularity in rechargeable Li-ion batteries, but their rate/cycling capabilities should be improved. Here by making yolk-shell nanocomposite of aluminium core (30 nm in diameter) and TiO2 shell (∼3 nm in thickness), with a tunable interspace, we achieve 10 C charge/discharge rate with reversible capacity exceeding 650 mAh g−1 after 500 cycles, with a 3 mg cm−2 loading. At 1 C, the capacity is approximately 1,200 mAh g−1 after 500 cycles. Our one-pot synthesis route is simple and industrially scalable. This result may reverse the lagging status of aluminium among high-theoretical-capacity anodes.

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