Safe bidirectional pulse heating method for the lithium-ion battery
Safe bidirectional pulse heating method for the lithium-ion battery pack on a high-power electric motorcycle. Thermocouple 2 is stuck on the surface of the cell to obtain the temperature of the shell. The battery cell is heated by 1C and 2C bidirectional pulse current with 2 Hz frequency, under the temperature of −20 °C and 0 °C with 30
Experiment and simulation of thermal management for a tube-shell
A physical model of the tube-shell battery pack and its computational meshes were created using commercial meshing software, GAMBIT. Since the model of battery pack was axial symmetry, the computational domain only covered half of the entire pack, as shown in Fig. 6. The total computational domain consists of cells, PCM wrapping cells, baffles
Optimization of automotive battery pack
The stress, strain, and frequency of the battery pack shell under typical working conditions are used as boundary conditions. The response surface model is established
Effective weight-reduction
Xiong et al. conducted research on the selection of materials for battery-pack components based on response surface methodology and a multi-island genetic algorithm. The optimized battery-pack achieved improved crashworthiness and was 11.73% lighter than the original battery-pack [14].
Multi-objective optimization of automotive power
The response surface method and NSGA-II were combined to optimize the temperature of the battery system under liquid-cooled conditions and the internal pressure of the liquid-cooled plate. Experiment and simulation
Mechanical safety prediction of a battery-pack system under low
The current research on the safety of battery-pack systems focuses on the following three levels: The constitutive model of individual battery cells at the micro level [6], [7]; Single cell batteries at medium level [8]; Overall battery-pack at macro level [9], [10].Xia et al. conducted an impact test on the entire battery-pack and determined the correlation between
CN116732508A
The application provides a surface anti-corrosion treatment method for a lithium ion battery steel shell, which comprises the following steps of: s1, adding alkali, an oxidant and a...
KR20130130840A
Recycling method of a battery pack 10 including a battery pack consisting of a plurality of cells connected in series with each other according to the present invention, from the steam boiler 14 into the heat treatment container 12 for heating the battery pack 10. A heating step of heating the battery pack 10 by supplying the supplied steam to replace the space in the heat treatment
Automotive battery pack manufacturing – a review of battery
Fretting or fretting corrosion is defined as surface degradation at a metal to metal contact interface caused by oscillatory movements of the two surfaces with slip amplitudes of D. Lyons, E. Berdichevsky, S. Kohn, and R. Teixeira, "Battery pack and method for protecting batteries," US Patent 7671,565, 2010. Google Scholar. Sun and Guo
Numerical analysis and optimization of thermal
An effective and robust thermal management system can control the temperature of lithium batteries and maintain the long service life and high performance of the module.
Crush and crash analysis of an automotive battery-pack enclosure for
Using multibody models, this research proposes a simplified method for soft‐connected battery modules, which can be applied to the battery pack FEM model, accurately calculate the dynamic
CN102306717A
The manufacturing method of the lithium ion power battery pack for the electric automobile comprises the following steps of: (1) providing a single battery, and preprocessing; (2) making a plurality of single batteries connected in parallel with one another to form the battery modules; (3) making a plurality of battery modules connected in
What are the surface treatment processes for aluminum shells of
The surface treatment process of power lithium battery aluminum shell includes powder electrostatic spraying process, electrophoretic coating process, plasma enhanced
Design of battery shell stamping parameters for vehicles based
2.1. BPE model simplified. The data parameters of the BPE model studied in this paper come from a pure electric vehicle, and according to the physical material properties of the power pack components [], the material of the upper cover is changed and upgraded in this paper.The BPE lid is made of sheet molding compound (SMC), which has high strength and
Power battery aluminum shell surface treatment process
The surface treatment process of the power battery aluminum shell includes the powder electrostatic spraying process, the electrophoretic painting process, the plasma
Optimization design of battery bracket for new energy vehicles
Upon completion of the surface treatment process, the finished battery pack system components were assembled to verify the fit. Results and discussion Strength analysis of the lower battery tray
CN102306717B
The manufacturing method of the lithium ion power battery pack for the electric automobile comprises the following steps of: (1) providing a single battery, and preprocessing; (2) making a plurality of single batteries connected in parallel with one another to form the battery modules; (3) making a plurality of battery modules connected in
Thermal management for a tube–shell Li
2.2 Battery pack structure As shown in Fig. 2, the battery used in this experiment was 3S3P battery pack (three cells in series and three cells in parallel) which consisted of nine 18650
What are the surface treatment processes for aluminum shells of
The surface treatment process of power lithium battery aluminum shell includes powder electrostatic spraying process, electrophoretic coating process, plasma enhanced electrochemical surface ceramicization process, The working principle of powder electrostatic spraying technology is almost identical to the electrostatic spraying method of
Design of battery shell stamping
The application of neural network model in engineering prediction is frequent. The BPE shell material was optimized, and the reliability of the new material was verified
Optimization of automotive battery pack casing based on
The stress, strain, and frequency of the battery pack shell under typical working conditions are used as boundary conditions. The response surface model is established according to the criterion of cross terms in adaptive response surface method, and the multi-objective particle swarm optimization algorithm is used for iterative solution.
What are the surface treatment processes for power lithium-ion
The surface treatment process of power lithium-ion battery aluminum shell mainly includes the following steps: Surface pretreatment: The purpose of this step is to clean the aluminum
CN111940245A
In order to solve the problems, the invention provides a battery shell surface protection treatment process, which can be used for coating a plurality of groups of battery shells...
Revealing the influence of solution and pre-deformation treatment
In this study, the surface of AZ80 Mg alloy were modified by two treatment methods, micro-arc oxidation (MAO) and the composition of laser shock penning/micro-arc oxidation technology (LSP/MAO).
Power battery aluminum shell surface treatment process
The surface treatment process of the power battery aluminum shell includes the powder electrostatic spraying process, the electrophoretic painting process, the plasma enhanced electrochemical surface ceramization process, the matte process and other surface treatment processes, and the following is explained by the technicians of the battery aluminum shell
Aluminum Battery Shell
China Aluminum Battery Shell wholesale - Select 2025 high quality Aluminum Battery Shell products in best price from certified Chinese Portable Power Bank manufacturers, Power Bank suppliers, wholesalers and factory on Made-in-China Surface Treatment: Anodized/Galvanized/Powder Coated/Sandblast, etc. Machining Method: Blanking, Laser
Optimization design of battery bracket for new energy vehicles
The battery pack parts exhibited a bright surface with low roughness and no discernible warping or deformation defects. As revealed by the assembly results, the components of
Thermal runaway behaviors of lithium-ion battery for electric
The battery pack is generally assembled by a large quantity of battery cells, and each cell is comprised of a large number of electrode layers and separators. The latter one triggers the TR by means of inserting a plate-type heater into the side of a battery cell. This abuse method could affect the thermal behavior of the battery cell since
Battery pack air tightness detection methods and common
The air tightness of the battery pack is a crucial indicator in electric vehicles and energy storage systems. The air tightness test of the battery pack is mainly carried out on the battery pack shell, interface, connector, cooling assembly, etc. to ensure that the inside of the battery pack is not contaminated or invaded by impurities such as dust and moisture from the
Optimization of air-cooling technology for LiFePO4 battery pack
After placed in the chamber for another 3 h, the battery pack is discharged at constant currents of 1C until the voltage is reduced to the cut-off voltage 2.5 V. C-rate is a measure of the rate at which a battery is being discharged, and it is defined as the current through the battery divided by the theoretical current draw under which the battery would deliver its