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Valve-controlled sealing lead-acid storage battery for starting and stopping of automobiles

A lead-acid battery, valve control technology, applied in the direction of lead-acid battery, lead-acid battery construction, battery, etc., can solve the problems of increased corrosion rate of the battery grid, easy water loss of the battery, battery swelling, etc., to reduce the occurrence of corrosion Probability, effect of reducing the number of grain boundaries and reducing heat generation

Inactive Publication Date: 2014-10-08
ZHEJIANG NARADA POWER SOURCE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under such working conditions, the start-stop battery is more likely to lose water, and the battery will swell and even cause thermal runaway
The corrosion rate of the battery grid also increased significantly

Method used

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  • Valve-controlled sealing lead-acid storage battery for starting and stopping of automobiles
  • Valve-controlled sealing lead-acid storage battery for starting and stopping of automobiles
  • Valve-controlled sealing lead-acid storage battery for starting and stopping of automobiles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The composition of the positive grid alloy is: Ca: 0.065%, Sn: 1.20%, Yb: 0.03%, and the balance is Pb. The fabricated grid was heat-treated at 300°C for 15 min, and then cooled naturally to room temperature. Through metallographic microscope observation, it can be clearly seen that the alloy unit cell produced by this scheme ( Figure 5 ) compared to conventional alloys ( Figure 4 ) is significantly larger and the number of grain boundaries is reduced, thereby reducing the risk of failure due to grid corrosion when the battery is used at high temperatures.

[0021] Add 0.8% silicon dioxide to the dilute sulfuric acid electrolyte of the battery. Before mixing, it is required to stir the silica with a high-speed rotary machine. After using colloidal silica, the average pore size of the separator is reduced from 10 μm to 5 μm.

[0022] Refer to attached picture. A metal reinforcing rib 10 is symmetrically embedded (or adhered) on both sides of the 12V 80Ah plastic b...

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PUM

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Abstract

The invention provides a valve-controlled sealing lead-acid storage battery for starting and stopping of automobiles. The valve-controlled sealing lead-acid storage battery is characterized in that ytterbium is added into Pb-Ca-Sn positive electrode grid alloy, the main ingredient of the alloy is Pb, Ca accounts for 0.05%-0.09% of the mass of the grid alloy, Sn accounts for 1.0%-2.0% of the mass of the grid alloy, and Yb accounts for 0.005%-0.05% of the mass of the grid alloy; heat treatment is carried out on a grid for 5-60 minutes under the environment with the temperature of 250-320 DEG C; silicon dioxide is added into an AGM (Absorptive Glass Mass) partitioning plate, or silicon dioxide is added into electrolyte, and the content of the silicon dioxide in the electrolyte is 0.3%-1.5%. The valve-controlled sealing lead-acid storage battery provided by the invention has the advantages that by improvement on the grid alloy of the storage battery and combination of improvement on the alloy of the partitioning plate and structural improvement on a battery jar, not only are the characteristics such as the discharging depth, the discharging frequency and the specific energy of the starting and stopping battery achieved, but also the heating amount of the valve-controlled battery is reduced, the expansion and thermal runaway of the battery are prevented, the corrosion resistance of the grid of the battery is improved and the battery can work under the environment with the temperature of 70 DEG C at highest.

Description

technical field [0001] The present invention relates to lead-acid batteries. In particular, it is a valve-regulated sealed lead-acid battery used for starting and stopping of automobiles. Background technique [0002] In order to save energy and reduce emissions, a start-stop technology is applied to automobiles. When encountering a red light at an intersection or a traffic jam, when the driver steps on the brake pedal, the engine will automatically cut off the oil and turn off, and at this time the power required in the car will be supplied by the battery; when the driver releases the brake pedal or steps on the clutch (or Accelerator pedal), the battery is used to start the engine. [0003] The traditional starting battery cannot meet the start-stop requirements because the working mode has changed. The main function of the traditional starter battery is to start, ignite, and illuminate, that is, Starting-lighting-Ignition. When the start function is completed, the eng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/12H01M4/66C22C11/06
CPCY02E60/126H01M4/662H01M4/685H01M10/08H01M10/121H01M2220/20H01M2300/0091H01M50/10H01M50/116H01M50/431Y02E60/10Y02P70/50
Inventor 陈建黄镔陈丽颖于文志戚红月丁平
Owner ZHEJIANG NARADA POWER SOURCE CO LTD
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