Improved electrochemical performance of LiCoO2 electrodes for high-voltage operations by Ag thin film coating via magnetron sputtering

MRS Advances ◽  
2018 ◽  
Vol 3 (60) ◽  
pp. 3513-3518 ◽  
Author(s):  
Taner Zerrin ◽  
Mihri Ozkan ◽  
Cengiz S. Ozkan
Keyword(s):  
Thin Film ◽  
Magnetron Sputtering ◽  
Electrochemical Performance ◽  
High Voltage ◽  
Coulombic Efficiency ◽  
High Capacity ◽  
Interface Layer ◽  
Li Ion Batteries ◽  
Electrode Structure ◽  
Li Ion

ABSTRACTIncreasing the operation voltage of LiCoO2 (LCO) is a direct way to enhance the energy density of the Li-ion batteries. However, at high voltages, the cycling stability degrades very fast due to the irreversible changes in the electrode structure, and formation of an unstable solid electrolyte interface layer. In this work, Ag thin film was prepared on commercial LCO cathode by using magnetron sputtering technique. Ag coated electrode enabled an improved electrochemical performance with a better cycling capability. After 100 cycles, Ag coated LCO delivers a discharge capacity of 106.3 mAh g-1 within 3 - 4.5 V at C/5, which is increased by 45 % compared to that of the uncoated LCO. Coating the electrode surface with Ag thin film also delivered an improved Coulombic efficiency, which is believed to be an indication of suppressed parasitic reactions at the electrode interface. This work may lead to new methods on surface modifications of LCO and other cathode materials to achieve high-capacity Li-ion batteries for high-voltage operations.

AC Magnetron Sputtering: An Industrial Approach for High‐Voltage and High‐Performance Thin‐Film Cathodes for Li‐Ion Batteries

2021 ◽  
pp. 2002125
Author(s):  
Jokin Rikarte ◽  
Iñaki Madinabeitia ◽  
Giorgio Baraldi ◽  
Francisco José Fernández‐Carretero ◽  
Víctor Bellido‐González ◽  
...  
Keyword(s):  
Thin Film ◽  
Magnetron Sputtering ◽  
High Voltage ◽  
High Performance ◽  
Li Ion Batteries ◽  
Li Ion

scholarly journals Ni–Sn intermetallics as an efficient buffering matrix of Si anodes in Li-ion batteries

2020 ◽  
Vol 8 (35) ◽  
pp. 18132-18142 ◽  
Author(s):  
Tahar Azib ◽  
Nicolas Bibent ◽  
Michel Latroche ◽  
Florent Fischer ◽  
Jean-Claude Jumas ◽  
...  
Keyword(s):  
Silicon Nanoparticles ◽  
Coulombic Efficiency ◽  
High Capacity ◽  
Cycle Life ◽  
Li Ion Batteries ◽  
Long Cycle ◽  
Long Cycle Life ◽  
Intermetallic Matrix ◽  
Li Ion ◽  
Si Anodes

High-capacity Si-based anodes with good coulombic efficiency and long-cycle life are achieved by embedding silicon nanoparticles in dual Ni3Sn4/Ni3Sn2 active/inactive intermetallic matrix.

Fabrication and characterization of Li–Mn–Ni–O sputtered thin film high voltage cathodes for Li-ion batteries

2012 ◽  
Vol 211 ◽  
pp. 108-118 ◽  
Author(s):  
Loïc Baggetto ◽  
Raymond R. Unocic ◽  
Nancy J. Dudney ◽  
Gabriel M. Veith
Keyword(s):  
Thin Film ◽  
High Voltage ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Fabrication And Characterization

Effect of cycling conditions on the electrochemical performance of high capacity Li and Mn-rich cathodes for Li-ion batteries

2016 ◽  
Vol 318 ◽  
pp. 9-17 ◽  
Author(s):  
Prasant Kumar Nayak ◽  
Judith Grinblat ◽  
Elena Levi ◽  
Boris Markovsky ◽  
Doron Aurbach
Keyword(s):  
Electrochemical Performance ◽  
High Capacity ◽  
Li Ion Batteries ◽  
Li Ion

Electrochemical Performance of a Layered-Spinel Integrated Li[Ni1/3Mn2/3]O2 as a High Capacity Cathode Material for Li-Ion Batteries

2015 ◽  
Vol 27 (7) ◽  
pp. 2600-2611 ◽  
Author(s):  
Prasant Kumar Nayak ◽  
Judith Grinblat ◽  
Mikhael D. Levi ◽  
Ortal Haik ◽  
Elena Levi ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
High Capacity ◽  
Li Ion Batteries ◽  
Li Ion

Nanostructured anode materials for Li-ion batteries

2008 ◽  
Vol 80 (11) ◽  
pp. 2283-2295 ◽  
Author(s):  
Nahong Zhao ◽  
Lijun Fu ◽  
Lichun Yang ◽  
Tao Zhang ◽  
Gaojun Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electrochemical Performance ◽  
Electrochemical Properties ◽  
Anode Materials ◽  
High Capacity ◽  
Rate Capability ◽  
Core Shell ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Cycling Behavior

This paper focuses on the latest progress in the preparation of a series of nanostructured anode materials in our laboratory and their electrochemical properties for Li-ion batteries. These anode materials include core-shell structured Si nanocomposites, TiO2 nanocomposites, novel MoO2 anode material, and carbon nanotube (CNT)-coated SnO2 nanowires (NWs). The substantial advantages of these nanostructured anodes provide greatly improved electrochemical performance including high capacity, better cycling behavior, and rate capability.

Self-Supported Bi2MoO6 Nanosheet Arrays as Advanced Integrated Electrodes for Li-Ion Batteries with Super High Capacity and Long Cycle Life

NANO ◽  
2018 ◽  
Vol 13 (06) ◽  
pp. 1850066 ◽  
Author(s):  
Wei-bin Chen ◽  
Li-na Zhang ◽  
Zhi-jing Ji ◽  
Ya-dan Zheng ◽  
Shuang Yuan ◽  
...  
Keyword(s):  
Three Dimensional ◽  
High Capacity ◽  
Li Ion Batteries ◽  
Electrode Structure ◽  
Long Cycle Life ◽  
Nanosheet Arrays ◽  
Electrons And Ions ◽  
One Step ◽  
Binder Free ◽  
Li Ion

Hierarchical Bi2MoO6 nanosheet arrays (BNAs) growing on three-dimensional (3D) Ni foam are synthesized by one-step template-free route. The obtained BNAs are used as binder-free integrated electrode for Li-ion batteries (LIBs) directly. The electrode exhibits a super high reversible discharge capacity of 2311.7[Formula: see text][Formula: see text]Ah[Formula: see text]cm[Formula: see text] (1741.4[Formula: see text]mAh[Formula: see text]g[Formula: see text]), and an excellent cycle stability. The outstanding electrochemical properties are reasonable from the self-supported integrated electrode in which the electrolyte is easy to infiltrate active materials, electrons and ions are readily transported along the 3D conductive substrate and the stable electrode structure.

Sign in / Sign up

Export Citation Format

Share Document