Technological Shells in Rolling Processes of Thin Sheets ...
This study used finite element (FE) simulation to analyze the impact of shell material on the process parameters of rolling with the use of shells. On the basis of FE …
This study used finite element (FE) simulation to analyze the impact of shell material on the process parameters of rolling with the use of shells. On the basis of FE …
The choice of nickel plated steel on its strength is critical. This study provides a solid dynamic constitutive modeling methodology for the LIB shell and the strain rate sensitive which may stimulate further study towards the safety design and evaluation of battery cells and packs.
The use of the modified technological shell allows us to reduce the rolling force by 20-30%, while the simulated rolling force was reduced by 37% in the case of using the modified technological shell ( Ys / Yh = 0.1). The total thickness reduction of the U12 core is 44.9%, and a reduction of 38.5% was achieved in the case of bare rolling.
Interestingly, if the dynamic effect of nickel-plated cold-rolled steel is not considered in the model, a late short-circuit triggering time will be expected thus leading to the underestimation of the battery safety upon mechanical abusive loading (Table 2).
XRD pattern illustrates that the material phase of the battery shell is mainly Fe, Ni and Fe-Ni alloy (Fig. 1 e). The surface of the steel shell has been coated with a thin layer of nickel (Ni) to improve the corrosion resistance, which is also demonstrated by cross-sectional image observation (Fig. S5a).
The use of technological shells effectively reduces the roll-separation force when the softest material is chosen ( Ys / Yh = 0.1). However, in this case, the rolling process is associated with the following issues: a total reduction of sheets from hard-to-deform materials is reduced, which reduces the rolling process efficiency;
The design of technological shells for the rolling of hard-to-deform materials was optimized based on FE simulation results; The developed technological shell was tested using the example of the rolling process of a model hard-to-deform tool steel.
This study used finite element (FE) simulation to analyze the impact of shell material on the process parameters of rolling with the use of shells. On the basis of FE …
New technology for manufacturing the steel-copper wire has been developed by American ''Copperweld Steel'' company. The same works have been performed at Magnitogorsk State Technical University. The ...
In the present study, target battery shells are extracted from commercially available 18,650 NCA (Nickel Cobalt Aluminum Oxide)/graphite cells. The detailed material …
This study used finite element (FE) simulation to analyze the impact of shell material on the process parameters of rolling with the use of shells. On the basis of FE simulation, a new shell design was proposed. The key difference between the new shell design and the well-known one lies in the two-layer construction of the proposed ...
Electroless plating has been considered as an effective approach to provide protection and enhancement for metallic materials with many excellent properties in engineering field.
However, studies on battery cases remain scarce. Herein, we propose the use of super duplex stainless steel SAF2507, which is a two-phase (austenite + ferrite) steel, for battery casings. Unlike ...
Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a new lithium metal battery that can be charged and …
Experimental investigation on the effect of nickel-plating thickness on continuous-wave laser welding of copper and steel tab joints for battery manufacturing September 2023 DOI: 10.21203/rs.3.rs ...
To study the influences of continuous annealing temperature on microstructure, mechanical properties and textures of battery shell steel, continuous annealing experiments were conducted at 710 °C, 730 °C, 760 °C and 780 °C …
The invention belongs to the field of battery steel shell processing, in particular to a processing technology of a material battery steel shell, which aims at solving the problems of complex...
In this study, we propose an effective defect-detection model, called Sim-YOLOv5s, for lithium battery steel shells. In this model, we propose a fast spatial pooling pyramid structure, SimSPPF, to speed up the model and embed the attention mechanism convolutional block attention module in the backbone.
Compared with the traditional rolling composite method, it has the following advantages: (1) high steel-aluminum interface strength can be obtained by differential temperature rolling of steel and aluminum at a high thickness ratio, which can eliminate the influence of aluminum heating interface oxidation on the interface bonding performance and …
Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a new lithium metal battery that can be charged and discharged at least 6,000 times — more than any other pouch battery cell — and can be recharged in a matter of minutes.
This paper seeks to provide real-time defect identification in cylindrical coated lithium batteries and improve the object detection method of the YOLOv5s model. This paper presents an …
Battery steel shells have high requirements for technical content, added value, and quality, and are known as the finest products among cold-rolled products. In order to conquer this technology, NanFu and Baosteel established a strategic cooperation project and a joint working group to innovate the previous technological process and ...
To study the influences of continuous annealing temperature on microstructure, mechanical properties and textures of battery shell steel, continuous annealing experiments were conducted at 710 °C, 730 °C, 760 °C and 780 °C respectively. The mechanical properties and normal anisotropy index (r) were measured by tensile test and the textures ...
With increasing demand for Li-ion batteries, studies are focusing on enhancing battery performance and safety. However, studies on battery cases remain scarce. Herein, we propose the use of super duplex stainless steel SAF2507, which is a two-phase (austenite + ferrite) steel, for battery casings. Unlike conventional AISI304, SAF2507 maintains its …
Battery steel shell electro plating. Battery steel shell electro plating. CONTACT US; Rectifier. 10A-3000A power supply. 100A Plating rectifier; 200A Power supply; 300A DC power supply; 500A Plating power supply; 600A SMPS power unit ; 750A AC to DC rectifier; 1000A Rectifiers; 1500A Plating rectifiers; 2000A Electroplating power supply; 3000A 12 volt …
To study the influences of continuous annealing temperature on microstructure, mechanical properties and textures of battery shell steel, continuous annealing experiments were conducted at...
The main objective of this work was to achieve for steel bars according to EN 10083 C45E, a uniform thickness of the layer of chromium deposited on them, after hard chrome plating process.
To study the influences of continuous annealing temperature on microstructure, mechanical properties and textures of battery shell steel, continuous annealing experiments were conducted at...
cast work rolls for cold rolling was reconsidered and a new type of rolls was tested. This new spun cast grade comprised a Semi-High Speed Steel shell and a Nodular Iron core. It resulted in a better in-service behavior but as the thermal crown behaved differently to forged rolls, the steady rolling state was delayed. In order to get rid of
Research on Effects of Lithium Plating on Lithium-ion . Battery Impedance . Xueyuan W ang 1, 2, Xuan T ang 2, 3, Haifeng Dai 2, 3*, Xuezhe W ei 2, 3* 1 Department of Control Science and ...
In the present study, target battery shells are extracted from commercially available 18,650 NCA (Nickel Cobalt Aluminum Oxide)/graphite cells. The detailed material analysis is conducted to...
In this study, we propose an effective defect-detection model, called Sim-YOLOv5s, for lithium battery steel shells. In this model, we propose a fast spatial pooling …
Battery steel shells have high requirements for technical content, added value, and quality, and are known as the finest products among cold-rolled products. In order to conquer this technology, NanFu and Baosteel established a strategic …
This paper seeks to provide real-time defect identification in cylindrical coated lithium batteries and improve the object detection method of the YOLOv5s model. This paper presents an MGSEC3 module with multi-scale feature extraction and integration of the SENet network in the YOLOv5 Backbone network.
In the present study, target battery shells are extracted from commercially available 18,650 NCA (Nickel Cobalt Aluminum Oxide)/graphite cells. The detailed material analysis is conducted to reveal a full understanding of the material. Then, the dynamic behavior of the battery shell material is experimentally investigated. Both theoretical ...
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