High volumetric specific energy valve-controlled sealed storage battery and preparing method thereof

Abstract

A volumetric specific energy valve-controlled sealed storage battery and a preparing method of the storage battery are disclosed to solve the problems in limited capacity and low volumetric specific energy of the storage battery. The storage battery comprises a storage battery groove, a storage battery cover, a big sealing cover, pole groups and a terminal, wherein the storage battery groove is provided with six single battery grooves side by side; the pole group is arranged in each of the single battery groups; the storage battery is characterized in that: the upper parts of the pole groups are higher than the single battery grooves; the pole groups in two adjacent single battery grooves are connected in series through a bus bar; terminal bus bars are arranged on the upper parts of the pole groups located in the single battery grooves at the two ends; and the terminal bus bars are provided with a terminal welding platform. The invention further provides a preparing method of the storage battery. In the preparing method of the invention, under the condition of an effective space, the height of a grid is maximized by cancelling a traditional structure that a middle pole is in bridged connection with a single battery, so that capacity maximization of the valve-controlled sealed battery within an effective volume is realized, and the volumetric specific energy of the storage battery is increased.

Description

technical field [0001] The invention relates to a storage battery, in particular to a high volume ratio energy valve-controlled sealed storage battery and a preparation method thereof, belonging to the technical field of storage batteries. Background technique [0002] The structure of the existing valve-controlled sealed battery is composed of six single batteries. It is necessary to set the middle pole to connect the six single batteries in series, and the terminal pole is connected to the terminal through the terminal pole lead-out hole on the battery cover. The battery with this traditional structure needs to reserve space for installing the middle pole and the end pole in the upper part of the battery case. Since the middle pole and the end pole occupy part of the space of the battery, the battery pole group can be made under the same volume condition. The area is reduced, and the battery volume is lower than the energy. The above problems are particularly prominent fo...

AI Technical Summary

Problems solved by technology

The above problems are particularly prominent for valve-regulated sealed batteries used in electric vehicles. Due to the limitation of storage space, the overall volume of the battery should be compact and not too large. In order to meet the assembly requirements , can only reduce the area of ​​the pole group, and as a result, the battery capacity is limited, and it is difficult to meet the requirements of long-distance driving

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