Vehicle battery box based on high-strength corrosion-resistant material and preparation method thereof

Abstract

The invention discloses a vehicle battery box body based on a high-strength corrosion-resistant material and a preparation method thereof, and relates to the technical field of electric vehicle batteries, in particular to a vehicle battery box body based on a high-strength corrosion-resistant material, which comprises a lower box body, an upper cover plate is detachably and fixedly mounted at the top of the lower box body, and a lower cover plate is detachably and fixedly mounted at the bottom of the lower box body. Reinforcing rib plates are arranged on the peripheral side of the lower box body and the peripheral side of the upper cover plate, and an inner containing box is connected into the lower box body in a clamped mode. According to the vehicle battery box based on the high-strength corrosion-resistant material and the preparation method of the vehicle battery box, when the collision sensor detects that the box is collided, a signal is fed back to the microcontroller, the microcontroller controls the air pump and the electromagnetic valve to be started, carbon dioxide in the air outlet bottle is guided into the inner placement box, a storage battery pack is prevented from being on fire, and the safety is improved; and the temperature in the inner placing box is detected through the temperature sensor, and when the temperature exceeds a threshold value, the microcontroller can also control the air pump to guide the carbon dioxide into the inner placing box.

Description

technical field [0001] The invention relates to the technical field of electric vehicle batteries, in particular to a vehicle battery box based on high-strength corrosion-resistant materials and a preparation method thereof. Background technique [0002] New energy vehicle batteries can be divided into two categories, namely batteries and fuel cells. Batteries are suitable for pure electric vehicles and can be classified into lead-acid batteries, nickel-based batteries (nickel-hydrogen and nickel-metal hydride batteries, nickel-fu and nickel-zinc batteries), sodium beta batteries (sodium-sulfur batteries and sodium Nickel chloride battery), secondary lithium battery, air battery and other types. An EV battery pack consists of multiple cells stacked in series. A typical pack has about 96 cells, which can generate a total voltage of over 400V for a lithium-ion battery charged to 4.2V. [0003] With the development of new energy vehicles, the requirements for the energy densi...

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Problems solved by technology

[0003] With the development of new energy vehicles, the energy density requirements for new energy lithium batteries are also getting higher and higher. At present, the lithium battery box uses a metal box, which has a large weight and has a great impact on the energy density of the battery. Due to Lithium batteries will be used in various places, resulting in a large temperature difference in the battery box in the area where the battery is used. When the battery is used in an alpine area, the activity of the battery will be reduced due to the impact of low temperature, resulting in poor battery life, and even cause the battery to stop charging and discharging. When the battery is used in a high-heat area, due to the high ambient temperature and the heat generated by the battery during use, and the battery box as a whole is a sealed structure, heat is easy to accumulate inside the battery box, which poses a certain safety hazard. , the existing battery box is usually a metal box structure. When the box is hit, it is easy to cause deformation of the box and even damage the battery inside the box. Therefore, we propose a vehicle battery box based on high-strength corrosion-resistant materials Body and preparation method thereof to solve the problems raised above

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