Lead-acid storage battery and lead-acid storage battery pack

A lead-acid battery and battery pack technology, applied in the battery field, can solve the problems of battery thermal runaway, complex process, poor compatibility of positive and negative electrode preparation processes, etc., and achieve the effect of improving accuracy and expanding management scope.

Inactive Publication Date: 2017-08-04
杨春晓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current application, the manufacturing process of the planar grid lead-acid battery is relatively simple, but the specific energy of the product is relatively low, the deep discharge and high current discharge capabilities are relatively poor, and the cycle life is relatively short; the deep discharge of the tubular lead-acid battery The capacity and battery life have been relatively improved, but the compatibility of the preparation process of the positive and negative electrodes is poor, so the process is more complicated, and the battery specific energy and large current discharge capacity are still not ideal; the life of the wound lead-acid battery , specific energy, and high-current discharge capacity have been relatively well improved, but this product has high requirements for manufacturing process control and expensive equipment costs, and when forming a battery pack, its cyli

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Embodiment 1

[0100] The lead-acid accumulator of present embodiment, its three-dimensional anatomical structure such as figure 1 As shown, the shape of the radial cross-section of the electrode column and its array are as follows figure 2 As shown, except for the edge of the battery, each positive electrode active material 2 columns is adjacent to 4 negative electrode active material 4 columns, and each negative electrode active material 4 columns is adjacent to 4 positive electrode active material 2 columns. The physical shape of 2 columns of positive active material and 4 columns of negative active material is a quadrangular prism with a height of 68mm, and the radial cross-sections of the columns are respectively 4mm×4.3mm and 4mm×3.7mm rectangular; The mass of the active material 2 is 4.6 g, and the mass of the negative electrode active material 4 is 4 g. The physical shape of the positive electrode current collector 1 and the negative electrode current collector 3 is also a quadran...

Embodiment 2

[0106] In the lead-acid storage battery of this embodiment, the radial cross-sectional shape and array of the electrode columns are as follows: Figure 5 shown. Among them, the physical shape of the positive electrode active material 2 is a positive cylinder with a height of 165 mm, a circular cross-sectional shape and a diameter of 5 mm, and the mass of a single positive electrode active material 2 is 11.7 g. The outer surface of the cylinder of the positive electrode active material 2 is in contact with the cylindrical separator 5 with a thickness of 1 mm, and the outer surface of the separator 5 is in contact with the side wall 7 of the electrode chamber. The physical shape of the electrode chamber has two shapes: cylindrical and straight curved wall hexagonal cylindrical shape. The cylindrical electrode chamber contains the positive electrode and the separator 5, and the straight curved wall hexagonal cylindrical electrode chamber contains the negative electrode. The thic...

Embodiment 3

[0114] The lead-acid storage battery of this embodiment is a surrounding sleeve-type lead-acid storage battery, and its electrode column radial cross-sectional shape and array are as follows: Figure 7 shown. Two columns of positive active material are adjacent to two columns of negative active material on both sides, and at the same time, two columns of negative active material are adjacent to two columns of positive active material. The physical shapes of the 2 columns of positive electrode active material and the 4 columns of negative electrode active material are cylindrical columns, and the radial cross-sectional shapes are circular rings with a height of 280 mm. The positive and negative cylindrical columns are nested alternately to form a ring-type electrode structure. A separator 5 is arranged between the positive electrode and the negative electrode, the thickness of each layer of separator is 1 mm, and the material is ultrafine glass fiber. The positive and negativ...

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Abstract

The invention discloses a lead-acid storage battery. The storage battery comprises a positive electrode, a negative electrode, a battery shell and a current converging body, wherein the positive electrode and the negative electrode have columnar strip physical shapes; a positive electrode columnar strip and a negative electrode columnar strip are parallel to each other and are arranged in an adjacent or nesting manner; the positive electrode columnar strip and the negative electrode columnar strip are isolated mutually by an isolation plate; each of the positive electrode columnar strip and the negative electrode columnar strip comprises an active material and a current collector; at least one part of each current collector is arranged in the interior or on the surface of the corresponding active material; and one end of each current collector is conductively contacted or combined with the corresponding active material while the other end is conductively connected with at least one kind of the current converging body, a connecting body between batteries or a battery output end point. The invention also discloses a lead-acid storage battery pack formed by the lead-acid storage battery. By means of improving the shapes and the array arrangement structures of the positive electrode and the negative electrode of the lead-acid storage battery, the performance of specific energy, deep discharging, high-current discharging capability, cycling life and the like of the lead-acid storage battery can be greatly improved.

Description

technical field [0001] The invention relates to accumulators, in particular to lead-acid accumulators and lead-acid accumulator groups. Background technique [0002] Lead-acid batteries have been invented by the Frenchman Planté in 1859 and have a history of more than 150 years, during which they have undergone many major improvements. Technological progress and its inherent electrochemical system characteristics have made it relatively cost-effective, stable and safe, and it has become the most widely used secondary battery with the largest market share in the world. It is widely used in transportation, communication Base stations, energy storage, traction and other fields. However, with the development of related industries and the rise of emerging industries in recent years, the performance of existing lead-acid batteries, such as specific energy, specific power, service life, etc., is expected to reach a better and higher level. Therefore, on the basis of the existing ...

Claims

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Application Information

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IPC IPC(8): H01M10/12H01M10/14
CPCH01M10/12H01M10/14Y02E60/10Y02P70/50
Inventor 杨春晓
Owner 杨春晓
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