A new type of separator for electric vehicle power battery

Abstract

The present invention is a new type of separator for electric vehicle power battery. The separator is covered by a single-piece double-wrapping method, and the positive and negative plates of the power battery are respectively coated with SWP separators and AGMS separators. A SWP separator and an AGMS separator are set between the positive plate and the negative plate so that the positive plate is in contact with the AGMS separator, and the negative plate is in contact with the SWP separator. The SWP separator and the AGMS separator are arranged in an S shape around the positive plate and the negative plate. , The SWP separator is composed of diatomite, synthetic fiber and pad sol, and the AGMS separator is composed of borosilicate glass filament and glass fiber cotton. The present invention adopts single-chip double-package, so that the negative plate is in contact with the SWP separator. The separator has strong high temperature resistance, and will not cause serious damage to the battery even in hot summer. It has strong resilience and anti-permeation Strong resistance, not only can make the positive plate and the negative plate feel, but also make the ions pass through normally, and has strong shock resistance to prevent breakage.

Description

technical field [0001] The invention belongs to the field of electric vehicles, and in particular relates to a novel partition plate used for power batteries of electric vehicles. Background technique [0002] As a new convenient and non-polluting means of transportation, electric vehicles have been developing faster and cheaper in recent years, and power batteries are the heart of electric bicycles, because batteries must provide continuous power to make electric vehicles Able to move, the separator of the battery is one of the important factors that determine the service life of the battery. The separator should not only prevent the positive plate and the negative plate from being in direct contact with each other and cause a short circuit, but also allow the ions to pass through smoothly. The separator of the previous power battery AGM separator is used, the main component of AGM separator is glass fiber filament, which has poor high temperature resistance and poor resili...

AI Technical Summary

Problems solved by technology

[0002] As a new convenient and non-polluting means of transportation, electric vehicles have been developing faster and cheaper in recent years, and power batteries are the heart of electric bicycles, because batteries must provide continuous power to make electric vehicles Able to move, the separator of the battery is one of the important factors that determine the service life of the battery. The separator should not only prevent the positive plate and the negative plate from being in direct contact with each other and cause a short circuit, but also allow the ions to pass through smoothly. The separator of the previous power battery AGM separator is used, the main component of AGM separator is glass fiber filament, which has poor high temperature resistance and poor resilience. It is also easy to break after vibration, and the shock resistance is poor

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