EFB start-stop battery for PHEV and manufacturing process

Abstract

The invention belongs to the technical field of manufacturing of power systems for hybrid electric vehicles, and relates to an EFB start-stop battery for a PHEV and a manufacturing process. The EFB start-stop battery comprises an integral tank, a plurality of plate groups mounted in the integral tank and acid liquor in the integral tank, wherein each plate group consists of a positive plate and a negative plate which are alternately stacked. The positive plate adopts a punching net radioactive structure design, ribs of the positive plate are thick at the upper part and thin at the lower part, are radial and are formed in a staggered manner; the ribs of the negative plate grid are in thickness transition design and are formed in a staggered manner, and the area of grids formed by the staggered ribs is small in top and large in bottom; in the same plate group, the positive plate is encapsulated by a high-strength PE partition plate, the positive and negative tabs are connected in parallel in a cast-weld manner, and all the plate groups are connected in series; and the density of the acid liquor is controlled to be 1.275 to 1.285 g / ml. The deep discharge cycle life of the battery is remarkably prolonged, the charge receiving capability of the battery is remarkably improved, the key technical problem of an EFB start-stop battery for a PHEV automobile is solved, and the invention has great technical improvement value and production and popularization value.

Description

Technical field[0001]The present invention belongs to the manufacturing technology of power supply system for hybrid vehicles, and is specifically a PHEV vehicle EFB start stop battery and manufacturing process.Background technique[0002]The hybrid model is driven by two or more energy sources, and the drive system can have a set or more sets. Plugging mixing (PHEV) should be said to be an advanced version of the oil and electricity, which is that the vehicle can charge the vehicle by charging pile or household charging equipment. Compared to HEV, PHEV's battery is relatively large, and can be charged outside, and more miles can be used in pure electric mode. When the electricity is exhausted, it is also possible to travel as the main power with the internal combustion engine and charge the battery. Therefore, the deep discharge cycle life and charging reception capacity of PHEV automobiles have a high technical requirement, and ordinary lead-acid batteries are not sufficient to meet...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of using common lead-acid batteries as the battery performance technology of the power supply system for PHEV vehicles, the present invention provides a EFB start-stop battery for plug-in hybrid electric vehicles. The deep discharge cycle life and charge receiving capacity of the EFB start-stop battery are It solves the key technical problems of the existing EFB start-stop battery for PHEV vehicles, and has great value for technology improvement and production promotion

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