A modular lithium-ion power battery

Abstract

The invention belongs to the technical field of lithium electronic power batteries, in particular to a modular lithium ion power battery, including a battery box and a battery pack; the battery pack is installed in the battery box, and the battery pack is composed of a plurality of single lithium ion power batteries ; Also includes a power block and a slide bar; the inside of one end of the battery box is provided with a chute; the power block is slidably connected in the chute; the power block can slide up and down along the chute; There is a No. 1 spring; one end of the No. 1 spring is connected to the bottom wall of the chute, and the other end is connected to the lower end of the power block; in the present invention, the power block slides up and down along the chute and the slide bar drives the baffle plate on both sides of the ventilation trough. The back and forth rotation of the groove walls cooperates to dissipate the heat generated by the lithium-ion power battery during the working process, thereby slowing down the aging speed of the wire harness of the lithium-ion power battery, and improving the service life and use effect of the modular lithium-ion power battery. improve.

Description

technical field [0001] The invention belongs to the technical field of lithium-ion power batteries, and specifically relates to a modular lithium-ion power battery. Background technique [0002] Lithium power battery is a new type of high-energy battery successfully developed in the 20th century; the negative electrode of this battery is metal lithium, and the positive electrode is MnO 2 , SOCl 2 etc.; entered into practical use in the 1970s; because of its advantages of high energy, high battery voltage, large current, and long storage life, it has been widely used in automobiles and small civilian electrical appliances, such as electric vehicles, mobile phones, portable computers, cameras, Cameras, etc., have partially replaced traditional batteries; large-capacity lithium batteries have been tried in electric vehicles, and will become one of the main power sources for electric vehicles in the 21st century, and will be used in artificial satellites, aerospace and energy s...

AI Technical Summary

Problems solved by technology

[0002] Lithium power battery is a new type of high-energy battery successfully developed in the 20th century; the negative electrode of this battery is metal lithium, and the positive electrode is MnO 2 , SOCl 2 etc.; entered into practical use in the 1970s; because of its advantages of high energy, high battery voltage, large current, and long storage life, it has been widely used in automobiles and small civilian electrical appliances, such as electric vehicles, mobile phones, portable computers, cameras, Cameras, etc., have partially replaced traditional batteries; large-capacity lithium batteries have been tried in electric vehicles, and will become one of the main power sources for electric vehicles in the 21st century, and will be used in artificial satellites, aerospace and energy storage; in electric vehicles In the automotive field, due to the high voltage and high current characteristics of the lithium-ion power battery pack, the temperature around the lithium-ion power battery pack rises, which accelerates the aging speed of the wiring harness on the lithium-ion power battery pack, and also affects the lithium-ion power pack. The effect of using the battery

[0003] There are also some technical solutions for modular lithium-ion power batteries in the prior art. For example, a Chinese patent with application number CN201620792262.0 discloses a modular lithium-ion power battery, including a battery box and a battery pack. The battery pack is composed of a plurality of single cells. The tabs and poles of the single cells are connected through stainless steel bolts. The tabs and poles are provided with butt welding areas connected by butt welding. The bulk lithium-ion power batteries are connected to each other through a conductive row to form a battery pack. The surface of the conductive row is provided with a temperature sensor. The battery box is filled with heat-conducting oil. The battery box is provided with a heat-conducting oil inlet and a heat-conducting Oil outlet; this technical solution has firm connection, temperature control, strong applicability, and high reliability; however, the overall battery box of this technical solution is a sealed structure, which is not conducive to heat dissipation. power consumption, resulting in high maintenance costs of lithium-ion power batteries, and thus the limitations of this technical solution

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