scholarly journals Novel nanocomposites of Ni-Pc/polyaniline for the corrosion safety of the aluminum current collector in the Li-ion battery electrolyte

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
M. A. Deyab ◽  
G. Mele ◽  
E. Bloise ◽  
Q. Mohsen
Keyword(s):  
High Stability ◽  
Storage Systems ◽  
Current Collector ◽  
Major Effect ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Electrochemical Tests ◽  
Novel Approach ◽  
Li Ion ◽  
Battery Electrolyte

AbstractIn electrochemical energy storage systems, Li-ion batteries have drawn considerable interest. However, the corrosion of the aluminum current collector in the LiN(SO2CF3)2 electrolyte has a major effect on battery efficiency. To protect the current collector from the corrosive action of the LiN(SO2CF3)2 electrolyte, new nanocomposites based on Ni(II)tetrakis[4-(2,4-bis-(1,1-dimethyl-propyl)-phenoxy)]phthalocyanine (Ni-Pc) and polyaniline matrix (PANI) (i.e. PANI@Ni-Pc composites) are coated on the aluminum current. SEM, XRD, and EDS were used to characterize the PANI@Ni-Pc composite. This method represents a novel approach to the production of Li-ion batteries. Electrochemical tests show that the PANI@Ni-Pc composites can protect aluminum from corrosion in LiN(SO2CF3)2. The output of PANI@Ni-Pc composites is influenced by the Ni-Pc concentration. The composite PANI@Ni-Pc is a promising way forward to build high-stability Li-Ion batteries.

scholarly journals Modelling the Impedance Response of Graded LiFePO4 Cathodes for Li-Ion Batteries

2022 ◽  
Author(s):  
Ross Drummond ◽  
Chuan Cheng ◽  
Patrick Grant ◽  
Stephen Duncan
Keyword(s):  
Electrochemical Impedance ◽  
Current Collector ◽  
Charge Transfer Resistance ◽  
Type Model ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Transfer Resistance ◽  
Electrode Current ◽  
Degradation Rates ◽  
Li Ion

Abstract Graded electrodes for Li-ion batteries aim to exploit controlled variations in local electrode microstructure to improve overall battery performance, including reduced degradation rates and increased capacity at high discharge rates. However, the mechanisms by which grading might deliver performance benefit, and under what conditions, are not yet fully understood. A Li-ion battery electrochemical model (a modified Doyle-Fuller-Newman type model capable of generating impedance functions) is developed in which local microstructural changes are captured in order to understand why and when graded electrodes can offer performance benefits. Model predictions are evaluated against experimental electrochemical impedance data obtained from electrodes with micro-scale, controlled variations in microstructure. A region locally enriched with carbon at the electrode/current collector interface is shown to significantly reduce the overpotential distribution across the thickness of a LiFePO$_4$-based Li-ion battery cathode, resulting in a lower charge transfer resistance and impedance. The insights gained from the LiFePO$_4$-based electrodes are generalised to wider design principles for both uniform and graded Li-ion battery electrodes.

scholarly journals Kerr gated Raman spectroscopy of LiPF6 salt and LiPF6-based organic carbonate electrolyte for Li-ion batteries

2019 ◽  
Vol 21 (43) ◽  
pp. 23833-23842 ◽  
Author(s):  
Laura Cabo-Fernandez ◽  
Alex R. Neale ◽  
Filipe Braga ◽  
Igor V. Sazanovich ◽  
Robert Kostecki ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Effective Technique ◽  
Li Ion ◽  
Battery Electrolyte ◽  
Organic Carbonate

Kerr gated Raman spectroscopy is demonstrated as an effective technique for the measurement of highly fluorescing Li-ion battery electrolyte materials.

Research on metallic chalcogen-functionalized monolayer-puckered V2CX2 (X = S, Se, and Te) as promising Li-ion battery anode materials

2021 ◽  
Author(s):  
Chunmei Tang ◽  
Xiaoxu Wang ◽  
Shengli Zhang
Keyword(s):  
Surface Area ◽  
Anode Materials ◽  
Large Surface Area ◽  
Two Dimensional ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Li Ion ◽  
Battery Anode

Two-dimensional MXene nanomaterials are promising anode materials for Li-ion batteries (LIBs) due to their excellent conductivity, large surface area, and high Li capability.

scholarly journals Aluminum current collector for high voltage Li-ion battery. Part I: A benchmark study with statistical analysis

2021 ◽  
Vol 126 ◽  
pp. 107013
Author(s):  
Chloé Bizot ◽  
Marie-Anne Blin ◽  
Pierre Guichard ◽  
Jonathan Hamon ◽  
Vincent Fernandez ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
High Voltage ◽  
Current Collector ◽  
Li Ion Battery ◽  
Benchmark Study ◽  
Li Ion

scholarly journals Hierarchically Nanostructured CuO–Cu Current Collector Fabricated by Hybrid Methods for Developed Li-Ion Batteries

Materials ◽  
2018 ◽  
Vol 11 (6) ◽  
pp. 1018 ◽  
Author(s):  
Jin-Young So ◽  
Chan-Ho Lee ◽  
Ji-Eun Kim ◽  
Hyun-Jee Kim ◽  
Joonha Jun ◽  
...  
Keyword(s):  
Hybrid Methods ◽  
Current Collector ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Cu Current Collector

Promotional recyclable Li-ion batteries by a magnetic binder with anti-vibration and non-fatigue performance

2015 ◽  
Vol 3 (30) ◽  
pp. 15403-15407 ◽  
Author(s):  
Xizheng Liu ◽  
De Li ◽  
Songyan Bai ◽  
Haoshen Zhou
Keyword(s):  
Cycle Life ◽  
Fatigue Performance ◽  
Pollutant Emission ◽  
Battery Life ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Total Cost ◽  
Long Cycle Life ◽  
Free Process ◽  
Li Ion

Magnetic Fe3O4 particles are used as the binder in a Li-ion battery. This new battery gives a long cycle life and can work well even after intensive vibration. The electrode is fabricated in a liquid-free process and can be easily recycled after battery disposal. It decrease the total cost and pollutant emission over the whole battery life.

High-rate and long-life of Li-ion batteries using reduced graphene oxide/Co3O4 as anode materials

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24320-24330 ◽  
Author(s):  
Junkai He ◽  
Ying Liu ◽  
Yongtao Meng ◽  
Xiangcheng Sun ◽  
Sourav Biswas ◽  
...  
Keyword(s):  
Anode Materials ◽  
High Capacity ◽  
High Rate ◽  
Microwave Method ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Reduced Graphene ◽  
One Step ◽  
Li Ion ◽  
Long Life

A new one-step microwave method was designed for synthesis of rGO/Co3O4, and the Li-ion battery showed high capacity and long life.

Stabilization of lithium metal anodes by conductive metal–organic framework architectures

2021 ◽  
Author(s):  
Jing Zhao ◽  
Hongye Yuan ◽  
Guiling Wang ◽  
Xiao Feng Lim ◽  
Hualin Ye ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Current Collector ◽  
Li Ion Batteries ◽  
Lithium Metal ◽  
Seeding Layer ◽  
Current Collectors ◽  
Metal Organic ◽  
Lithium Metal Anodes ◽  
Li Ion ◽  
Cu Foil

The Cu-foil current collectors with Ni3(HITP)2 films were prepared to reduce the energy barrier of the current collector surface and thus provide a uniform seeding layer for the subsequent deposition of Li in Li-ion batteries.

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