AGM storage battery inner formation process and AGM start-stop storage battery

A storage battery, internalization technology, applied in the direction of lead-acid battery, lead-acid battery construction, battery pack parts, etc. ability, improve the efficiency of formation, and reduce the effect of assembly pressure

Active Publication Date: 2020-03-24
JUJIANG POWER TECH CO LTD
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used internal formation process is generally divided into stage constant current charging or multi-step charge and discharge (such as three charges and two discharges), but there is no internal formation with high current, because the current reception of the battery plate is limited when the high current is internalized. , the current will act on the electrolyte, electrolyze the electrolyte, and release a large amount of gas; moreover, the shortest internal formation time of the prior art is 72 hours, how to shorten the formation time of the battery and improve the production efficiency of the battery is an urgent problem to be solved
[0004] In order to solve this problem, those skilled in the art have developed a new type of battery formation method: pulse formation, but there are still the following problems in the use of pulse formation: (1) how to eliminate the concentration polarization in the charge formation process and reduce the amount of gas evolution , improve the battery acceptance capacity and shorten the charging time; (2) A large amount of gas will be generated during charging, thereby delaying the diffusion of sulfuric acid and water in the gaps of the lead paste, and the gas will also discharge the sulfuric acid liquid out of the gaps of the lead paste, reducing the charging efficiency
[0005] In the prior art, the application CN101853969A discloses a charge-discharge method and an internal formation process for the internal formation of the battery raw plate. Although the method and process can quickly and effectively eliminate various polarization voltages, the charging speed is fast and the formation time is short. , but the required time is as long as 21h, and the formation efficiency is low; the maximum charging current is 27.5%C 20 , is still charging with a small current, and the charging capacity of the plates is very small
[0006] Application CN109616702A discloses an alternate pulse formation charging process, which divides the battery formation charging process into trickle pretreatment, constant current charging, static, positive and negative pulse charging, intermittent pulse charging and other methods of multi-stage alternate charging, This process alternately charges positive and negative pulses and intermittent pulses to reduce gas evolution and improve charging conversion efficiency, but the time required for charging and forming is still as long as 18 hours

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • AGM storage battery inner formation process and AGM start-stop storage battery
  • AGM storage battery inner formation process and AGM start-stop storage battery
  • AGM storage battery inner formation process and AGM start-stop storage battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Taking the battery 6-QW-70Ah (L3) as an example, the total charging ampere-hour is confirmed according to 3.3 times the actual capacity of the battery, that is, the total charging ampere-hour is 70Ah×3.3=231Ah, and the number of times of charging in the last step is N=nC / 4.5I , wherein, I=70, C=231, n=15, then N=11, and the number of discharges in the last step is also 11 times.

[0044] Internalize the battery 6-QW-70Ah (L3) into a charging and discharging method, the steps are as follows:

[0045] 1. Separator type selection: choose a separator with a size of 240×162×2.87 (10KPa), and use 5 separators to cover the positive plate for each grid;

[0046] 2. Add dilute sulfuric acid to the battery as the electrolyte, and the specific gravity of dilute sulfuric acid is 1.245±0.005g / cm 3 (25°C);

[0047] 3. Charge and discharge according to the following procedure:

[0048] The first step: 70A charging for 1h, constant current charging, no discharge, then the charging a...

Embodiment 2

[0083] The schematic diagram of the device structure for realizing the above-mentioned vacuum pumping acid is as follows: figure 2 as shown, figure 2 The direction pointed by the middle arrow indicates the flow direction of fluid (such as gas, liquid). The vacuum acid pumping device includes:

[0084] The rich liquid pot 2 ( figure 2 Only one liquid-rich pot is shown in the figure, in fact, the liquid-rich pot is closed and connected to each hole on the top of the battery 1), the top of the liquid-rich pot 2 is provided with a first exhaust port 21, and the top of the liquid-rich pot 2 is close to the first exhaust port The port 21 section is provided with a stop valve 22 that determines the opening and closing of the first exhaust port 21;

[0085] The vacuum tank 3 connected with the upper part of the rich liquid pot 2 through a pipeline, the outer wall of the vacuum tank 3 is connected with a vacuum gauge 31 for monitoring the vacuum degree inside the vacuum tank 3; a ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
Login to view more

Abstract

The invention belongs to a storage battery formation process, and specifically relates to an AGM storage battery inner formation process comprises the following steps: firstly, confirming constant-current uninterrupted charging of charging current according to 100% of the actual capacity of a storage battery; then performing standing for 5-25 min when charging for 4-6 min, performing discharging for 1 min and charging 0.9-1.0 storage battery actual capacity, then performing vacuum acid pumping, and finally performing confirmation according to the total charging ampere-hour amount of 15%-17% when charging is carried out for 4-6 min, performing discharging for 1 min and performing the charging ampere-hour amount. The invention further provides an AGM start-stop storage battery. According tothe AGM storage battery inner formation process provided by the invention, the charging acceptance of the polar plate is greatly improved, the formation time is shortened to be within 7-8 hours, and the formation efficiency is improved.

Description

technical field [0001] The invention belongs to storage battery internal formation process, in particular to an AGM storage battery internal formation process and AGM start-stop storage battery. Background technique [0002] The starting AGM battery is a valve-regulated sealed lead-acid battery using liquid-absorbent glass fiber separator (AGM). The key indicators related to its performance are high-temperature cycle life and deep discharge cycle life. In terms of these two technical conditions , the currently used starting AGM battery can not meet the needs of use: in view of the high temperature cycle life requirements, the main failure mode of the AGM start-stop battery is the short circuit caused by the corrosion and growth of the grid, and the rapid water loss caused by the high current at the end of charging, which leads to the insulation The plate was dry; in accordance with the requirements of the deep discharge test (ROD test), the domestic AGM start-stop battery wa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/36H01M10/12
CPCH01M10/12H01M50/691Y02E60/10Y02P70/50
Inventor 刘毅张伟吴洁马浩其姚庆冬
Owner JUJIANG POWER TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap