In battery system design, computer-aided design, engineering and advanced analysis methods are very important. There are many forms of computer assistance, ranging from the three-dimensional models often used in the engineering field, to the heat production and heat dissipation of the battery under different working conditions, and the changes in the internal mechanical properties of …
The lithium-air Li-O2 battery has a theoretical energy density much higher than that of the lithium-ion battery, and it has the highest energy density among the existing battery systems. If the weight of oxygen involved in the reaction is not considered, the energy density of lithium-air batteries can reach 11430W·h·kg-1, which is equivalent to fossil …
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As the core component of electric vehicle power, the power battery system has strict quality management on the production line. However, after the product is off the assembly line and before being delivered to the customer, it should undergo comprehensive product testing and safety testing in addition to the appearance and size requirements to simulate …
The wiring harnesses in the Pack are generally divided into low-voltage wiring harnesses and high-voltage wiring harnesses. Low-voltage wiring harnesses refer to wiring harnesses such as voltage sampling wires, temperature sampling wires, communication wires, and control wires; high-voltage wiring harnesses mainly refer to main loop wiring harnesses with excessive current, such as copper bars and …
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In Pack assembly, module fastening generally refers to fixing the module to the box with bolts. The module not only occupies a large space, but also a large mass. The performance and safety of the entire Pack are directly determined by the fastening of the module. . In Pack assembly, not only the modules are …
Generally, two types of glue are used in module production: one is thermally conductive glue based on thermal conductivity; the other is structural glue that prevents mutual slippage between batteries. In actual production, two-component A and B glues are generally used at present. The following mainly introduces the glue making process with two-component glue (1) …
(1) Overview of laser welding.The connection between the battery cell and the battery cell generally adopts the method of connecting piece welding. In the module manufacturing process, the soft package cell and the square cell module are generally laser welded. The specific situation may be different for each company. The following is an introduction to …
Principle of bonding welding.Bonding welding is also called ultrasonic aluminum wire welding. The principle is to use an ultrasonic generator to generate energy. The magnetostrictive transducer rapidly expands and contracts under the induction of a high-frequency magnetic field to generate elastic vibration, so that the corresponding vibration of the wedge is simultaneously applied to the …
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(1) Introduction to the structure of the soft pack battery cell moduleThe soft pack battery module is generally composed of battery core, aluminum row, copper row, inner bracket, outer frame, aluminum plate, thermal pad, sampling harness and other main components. Figure 9-13 is a more typical structure of a soft pack battery cell module. The …
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(1) Introduction to the structure of the square battery cell moduleThe square battery module is generally composed of battery core, end plate, side plate, bottom plate, aluminum sheet (usually called Busbar), wiring harness isolation plate, upper cover, end plate insulation cover and other main components. Figure 9-11 is a more typical square battery cell module …
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