scholarly journals Dynamic Fields Visualization of Carbon-Black (CB) Volume Fraction Distribution in Lithium-ion Battery (LIB) Cathode Slurry by Electrical Resistance Tomography (ERT)

2021 ◽  
Vol 58 (3) ◽  
pp. 119-126
Author(s):  
Takashi Karatsu ◽  
Zhilong Wang ◽  
Tong Zhao ◽  
Daisuke Kawashima ◽  
Masahiro Takei
Keyword(s):  
Carbon Black ◽  
Lithium Ion Battery ◽  
Electrical Resistance ◽  
Volume Fraction ◽  
Lithium Ion ◽  
Electrical Resistance Tomography ◽  
Fraction Distribution

A flexible high-energy lithium-ion battery with a carbon black-sandwiched Si anode

2017 ◽  
Vol 225 ◽  
pp. 11-18 ◽  
Author(s):  
Chao Li ◽  
Tongfei Shi ◽  
Hideya Yoshitake ◽  
Hongyu Wang
Keyword(s):  
Carbon Black ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
High Energy ◽  
Si Anode

A Method to Study Fatigue Life of Ultrasonically Welded Lithium-Ion Battery Tab Joints Using Electrical Resistance

2014 ◽  
Author(s):  
Nanzhu Zhao ◽  
Wei Li ◽  
Wayne W. Cai ◽  
Jeffrey A. Abell
Keyword(s):  
Fatigue Life ◽  
Lithium Ion Battery ◽  
Fatigue Test ◽  
Electrical Resistance ◽  
Hybrid Electric Vehicle ◽  
Damage Mechanics ◽  
Welding Process ◽  
Lithium Ion ◽  
Damage Variable ◽  
Life Model

The fatigue life of ultrasonically welded lithium-ion battery tab joints is studied for electric and hybrid-electric vehicle applications. Similar to metallic materials, the electrical resistance of these ultrasonic welds strongly depends on their quality and the crack growth under fatigue loading. A fatigue life model is developed using the continuum damage mechanics formulation, where the damage variable is defined using the electrical resistance of ultrasonic welds. Fatigue tests under various loading conditions are conducted with aluminum-copper battery tab joints made under various ultrasonic welding conditions. It is shown that the electrical resistance of ultrasonic welds increases characteristically during the fatigue life test. There is a threshold for the damage variable, after which the ultrasound welds fail rapidly. Due to welding process variation, welds made under the same process settings may have different fatigue performance. This quality difference may be classified using two parameters estimated from the fatigue life model. By monitoring the electrical resistance, it is possible to predict the remaining life of ultrasonically welded battery tab joints using only a portion of the fatigue test data. The prediction is more reliable by incorporating data beyond the half-life of the joints during the fatigue test.

scholarly journals Maleamic Acid as an Organic Anode Material in Lithium-Ion Batteries

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1109
Author(s):  
Berhanemeskel Atsbeha Kahsay ◽  
Fu-Ming Wang ◽  
Alem Gebrelibanos Hailu ◽  
Chia-Hung Su
Keyword(s):  
Carbon Black ◽  
Lithium Ion Battery ◽  
Metal Ion ◽  
Electrochemical Impedance ◽  
Rate Capability ◽  
Earth Metal ◽  
Lithium Ion ◽  
Energy Storage Materials ◽  
Anode Electrode ◽  
Maleamic Acid

Low-molecular-weight carbonyl-containing compounds are considered beneficial energy storage materials in alkali metal-ion/alkaline earth metal-ion secondary batteries owing to the ease of their synthesis, low cost, rapid kinetics, and high theoretical energy density. This study aims to prepare a novel carbonyl compound containing a maleamic acid (MA) backbone as a material with carbon black to a new MA anode electrode for a lithium-ion battery. MA was subjected to attenuated total reflection-Fourier-transform infrared spectroscopy, and its morphology was assessed through scanning electron microscopy, followed by differential scanning calorimetry to determine its thermal stability. Thereafter, the electrochemical properties of MA were investigated in coin cells (2032-type) containing Li metal as a reference electrode. The MA anode electrode delivered a high reversible capacity of about 685 mAh g−1 in the first cycle and a higher rate capability than that of the pristine carbon black electrode. Energy bandgap analysis, electrochemical impedance, and X-ray photoelectron spectroscopy revealed that MA significantly reduces cell impedance by reforming its chemical structure into new nitrogen-based highly ionic diffusion compounds. This combination of a new MA anode electrode with MA and carbon black can increase the performance of the lithium-ion battery, and MA majorly outweighs transitional carbon black.

Experimental Investigation of Volume Fraction in an Annulus Using Electrical Resistance Tomography

SPE Journal ◽  
2019 ◽  
Vol 24 (05) ◽  
pp. 1947-1956 ◽  
Author(s):  
Syed Raza Rehman ◽  
Alap Ali Zahid ◽  
Anwarul Hasan ◽  
Ibrahim Hassan ◽  
Mohammad A. Rahman ◽  
...  
Keyword(s):  
Multiphase Flow ◽  
Electrical Resistance ◽  
High Speed ◽  
Volume Fraction ◽  
Flow Behavior ◽  
Complex Flow ◽  
Flow Loop ◽  
Electrical Resistance Tomography ◽  
Horizontal Drilling ◽  
Hole Cleaning

Summary Horizontal drilling technology has shown to improve the production and cost–effectiveness of the well by generating multiple extraction points from a single vertical well. The efficiency of hole cleaning is reduced because of the solid–cuttings accumulation in the annulus in cases of extended–reach drilling. It is difficult to study the complex flow behavior in a drilling annulus using the existing visualization techniques. In this study, experiments were carried out in the multiphase flow–loop system consisting of a simulated drilling annulus using electrical resistance tomography (ERT) and a high–speed camera. Real–time tomographic images (quantitative visualization) of multiphase flow from ERT were compared to the actual photographs of the flow conditions in a drilling annulus. The quantitative analysis demonstrates that ERT has a wide potential application in studying the hole–cleaning issues in the drilling industry.

Investigation of Flowzan as Non-Newtonian Cutting Transport Fluid in Directional Drilling Applications via Electrical Resistance Tomography Method

2021 ◽  
Author(s):  
Muhammad Saad Khan ◽  
Abinash Barooh ◽  
Mohammad Azizur Rahman ◽  
Ibrahim Hassan ◽  
Rashid Hasan
Keyword(s):  
Newtonian Fluid ◽  
Electrical Resistance ◽  
Volume Fraction ◽  
Drill Pipe ◽  
Measurement Technology ◽  
Outer Diameter ◽  
Directional Drilling ◽  
Electrical Resistance Tomography ◽  
Vertical Orientation

Abstract In-situ cutting transport measurement is essential to understand the hydrodynamics and operational parameters required for efficient annulus cleaning. Electrical resistance tomography (ERT) has been a promising method in many industrial applications. This study aimed to provide comprehensive information on the use of a non-invasive ERT method to examine the volume fraction of solids in the presence of non-Newtonian fluid (0.5 wt percent of Flowzan) in a directional drilling annulus (80–90° from vertical orientation). The experiments were performed in a horizontal flow loop system where the annulus segment was 240 (6.16 m) inch long with an inner and outer diameter of 2.5 inches (6.4 cm) and 4.5 inches (11.4 cm), respectively. The results obtained indicated that the ERT device could effectively detect the volume fraction of the solids in the presence of non-Newtonian fluid (Flowzan) under different drilling conditions. Results also showed that the annulus’ successful cleaning was observed with an increase in fluid mass flow rates indicated the relative increase in cuttings volumes (AVF = 7 to 9%). Besides, the rotation of the drill pipe often had a beneficial effect on cutting transport. Furthermore, it was observed that both (30%) eccentricity and inclination (80–85 °) cause a reduction in cutting volume fraction. Therefore, this study will provide an avenue for the industrial implementation of in situ ERT measurement technology in directional drilling operations, particularly in the case of non-Newtonian drilling fluids.

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