Chromate conversion coated aluminium as a light-weight and corrosion-resistant current collector for aqueous lithium-ion batteries

2016 ◽  
Vol 4 (2) ◽  
pp. 395-399 ◽  
Author(s):  
Saman Gheytani ◽  
Yanliang Liang ◽  
Yan Jing ◽  
Jeff Q. Xu ◽  
Yan Yao
Keyword(s):  
Stainless Steel ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Current Collector ◽  
Light Weight ◽  
Aluminium Foil ◽  
Corrosion Resistant ◽  
Titanium Foils

We report chromate conversion coated (CCC) aluminium foil as a corrosion-resistant current collector in aqueous lithium-ion battery cathodes. CCC aluminium-based electrodes show better cycling stability and higher coulombic efficiency than those fabricated on stainless steel and titanium foils.

Carbon coated stainless steel mesh as a low-cost and corrosion-resistant current collector for aqueous rechargeable batteries

2017 ◽  
Vol 5 (30) ◽  
pp. 15752-15758 ◽  
Author(s):  
Y. H. Wen ◽  
L. Shao ◽  
P. C. Zhao ◽  
B. Y. Wang ◽  
G. P. Cao ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Lithium Ion Battery ◽  
Low Cost ◽  
Lithium Ion ◽  
Current Collector ◽  
Rechargeable Batteries ◽  
Stainless Steel Mesh ◽  
Corrosion Resistant ◽  
Steel Mesh ◽  
Carbon Coated

Carbon-coated stainless steel mesh is used as a corrosion-resistant current collector using a multi-functional binder, NaPAA, in aqueous lithium-ion battery cathodes.

scholarly journals Effect of Current Rate and Prior Cycling on the Coulombic Efficiency of a Lithium-Ion Battery

Batteries ◽  
2019 ◽  
Vol 5 (3) ◽  
pp. 57 ◽  
Author(s):  
Seyed Madani ◽  
Erik Schaltz ◽  
Søren Knudsen Kær
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Degradation Behavior ◽  
Battery Cell ◽  
The Third ◽  
Capacity Loss ◽  
Battery Cells

The determination of coulombic efficiency of the lithium-ion batteries can contribute to comprehend better their degradation behavior. In this research, the coulombic efficiency and capacity loss of three lithium-ion batteries at different current rates (C) were investigated. Two new battery cells were discharged and charged at 0.4 C and 0.8 C for twenty times to monitor the variations in the aging and coulombic efficiency of the battery cell. In addition, prior cycling was applied to the third battery cell which consist of charging and discharging with 0.2 C, 0.4 C, 0.6 C, and 0.8 C current rates and each of them twenty times. The coulombic efficiency of the new battery cells was compared with the cycled one. The experiments demonstrated that approximately all the charge that was stored in the battery cell was extracted out of the battery cell, even at the bigger charging and discharging currents. The average capacity loss rates for discharge and charge during 0.8 C were approximately 0.44% and 0.45% per cycle, correspondingly.

Micro Silicon–Graphene–Carbon Nanotube Anode for Full Cell Lithium-ion Battery

2018 ◽  
Vol 16 (1) ◽  
Author(s):  
Xianfeng Gao ◽  
Fenfen Wang ◽  
Sam Gollon ◽  
Chis Yuan
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Hybrid Structure ◽  
Composite Anode ◽  
Void Space ◽  
Half Cell ◽  
Full Cell

An electrochemically stable hybrid structure material consisting of porous silicon (Si) nanoparticles, carbon nanotubes (CNTs), and reduced graphene oxide (rGO) is developed as an anode material (Si/rGO/CNT) for full cell lithium-ion batteries (LIBs). In the developed hybrid material, the rGO provides a robust matrix with sufficient void space to accommodate the volume change of Si during lithiation/delithiation and a good electric contact. CNTs act as a mechanically stable and electrically conductive support to enhance the overall mechanical strength and conductivity. The developed Si/rGO/CNT composite anode has been first tested in half cell and then in full cell lithium-ion batteries. In half cell, the composite anode shows a high reversible capacity of 1100 mAh g−1 with good capacity retention over 500 cycles when cycled at 1 A g−1. In a full cell lithium-ion battery paired up with LiNi1/3Mn1/3Co1/3O2 (NMC) cathodes, the composite anode shows a specific charge capacity of 161.4 mAh g−1 and a discharge capacity of 152.8 mAh g−1, respectively, with a Coulombic efficiency of 94.7%.

Micro-Ploughing Process of Copper Current Collector for Lithium-Ion Battery

2011 ◽  
Vol 228-229 ◽  
pp. 309-314
Author(s):  
Xing Xian Tang ◽  
Yong Tang ◽  
Bang Yan Ye ◽  
Long Sheng Lu
Keyword(s):  
Lithium Ion Batteries ◽  
Coulombic Efficiency ◽  
Copper Substrate ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Current Collector ◽  
Cycle Performance ◽  
Active Materials ◽  
Carbon Anodes ◽  
High Coulombic Efficiency

A three-dimensional “fin-groove” composite structure copper current collector was fabricated by micro-ploughing process. 3D and common 2D carbon anodes for lithium- ion batteries were prepared. The electrochemical properties of these electrodes were studied by linear sweep cyclic voltammetry (CV) and charge-discharge (C-D) test. 2D anode showed high contact resistance, high coulombic efficiency but poor cycle performance. In contrast, 3D anode showed the structure superiority in reinforcing bonding force between active materials and copper substrate, improving the conductive environment and alleviating volume changes. It was believed that 3D anode can keep high coulombic efficiency and improve the cycle performance of lithium- ion batteries.

Fe3C doped modified nano-Si/C composites as high-Coulombic-efficiency anodes for lithium-ion batteries

2021 ◽  
Author(s):  
Junhao Liu ◽  
Jijun Lu ◽  
Xuzhong Gong ◽  
Zhi Wang
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Promising Candidate ◽  
High Coulombic Efficiency

Silicon is considered to be the most promising candidate for the anode of high energy density lithium-ion battery. Nanometerization has been proven to be an effective method for improving the...

scholarly journals Effect of dynamic loads and vibrations on lithium-ion batteries

2021 ◽  
pp. 146134842110081
Author(s):  
Xia Hua ◽  
Alan Thomas
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Experimental Studies ◽  
Lithium Ion ◽  
Battery Pack ◽  
Dynamic Loads ◽  
Electrical Performance ◽  
Mechanical Degradation ◽  
Energy Storage Devices ◽  
Battery Cell

Lithium-ion batteries are being increasingly used as the main energy storage devices in modern mobile applications, including modern spacecrafts, satellites, and electric vehicles, in which consistent and severe vibrations exist. As the lithium-ion battery market share grows, so must our understanding of the effect of mechanical vibrations and shocks on the electrical performance and mechanical properties of such batteries. Only a few recent studies investigated the effect of vibrations on the degradation and fatigue of battery cell materials as well as the effect of vibrations on the battery pack structure. This review focused on the recent progress in determining the effect of dynamic loads and vibrations on lithium-ion batteries to advance the understanding of lithium-ion battery systems. Theoretical, computational, and experimental studies conducted in both academia and industry in the past few years are reviewed herein. Although the effect of dynamic loads and random vibrations on the mechanical behavior of battery pack structures has been investigated and the correlation between vibration and the battery cell electrical performance has been determined to support the development of more robust electrical systems, it is still necessary to clarify the mechanical degradation mechanisms that affect the electrical performance and safety of battery cells.

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