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A Charging Process of Intermittent Positive and Negative Pulses

A positive and negative pulse, pulse charging technology, applied in secondary battery charging/discharging, circuits, electrical components, etc., can solve the problems of high energy consumption, low conversion efficiency, long charging time, etc., to increase capacity and complete conversion , the effect of improving the formation efficiency

Active Publication Date: 2019-08-06
ANHUI YONGHENG STORAGE BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides an intermittent positive and negative pulse charging process, which is used to solve the technical problems that the existing charging process takes a long time to charge, which leads to large energy consumption and low formation efficiency in the charging process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Let stand for 10-15 minutes,

[0045] (2) Using 0.03 C10-0.05 C10, charging time is 5 minutes,

[0046] (3) Using 0.07 C10-0.09 C10, the charging time is 5 minutes,

[0047] (4) Using 0.12 C10-0.15 C10, charging time is 10 minutes,

[0048] (5) Using 0.20 C10-0.25 C10, the charging time is 30 minutes,

[0049] (6) Use 0.30 C10-0.35 C10 intermittent pulse charging time for 60 minutes,

[0050] (7) Use 0.35 C10-0.4 C10 intermittent pulse charging time for 8 hours,

[0051] (8) Using 0.4 C10-0.42 C10, the intermittent pulse charging time is 6 hours,

[0052] (9) Use 0.35 C10-0.40 C10, intermittent pulse charging time 2 hours,

[0053] (10) Using 0.35 C10-0.40 C10, positive and negative pulse charging time is 2 hours,

[0054] (11) Using 0.35 C10-0.40 C10, positive and negative pulse charging time is 2 hours,

[0055] (12) Using 0.35 C10-0.40 C10, positive and negative pulse charging time is 2 hours,

[0056] (13) Constant voltage charging 16.8V for 2 hours,

...

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PUM

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Abstract

The invention provides an intermittent positive and negative pulse charging technology. A large current intermittent multi-stage charging method is adopted, charging efficiency is improved, curing time is shortened, energy conservation and consumption reduction are realized, energy consumption is saved by 30%, large current quick charging is adopted, time of a follow-up charging working procedure of a battery is reduced to 73 hours from the original 120 hours, production efficiency is improved by 39%, charging volume is reduced by 20%, and capacity of the battery is improved by 13%, so that the technology not only realizes energy conservation, consumption reduction and high production efficiency, but also formation efficiency is improved, initial capacity of the battery is improved, and cycle life of the battery is prolonged; further, static negative pressure vacuum acid pumping is carried out in an early stage of the charging; meanwhile, charged-state negative pressure acid pumping is carried out in a middle stage of the charging, and timed vacuum negative pressure acid pumping is carried out when the charging is finished, so that saturability of acid content inside the battery is solved, speed of diffusion of sulfuric acid toward the interior of a polar plate is improved, polar plate formation is more thorough, and the effects of prolonging service life of the battery and improving large current discharging performance of the battery are achieved.

Description

technical field [0001] The invention mainly relates to the technical field of battery charging, in particular to an intermittent positive and negative pulse charging process. [0002] technical background [0003] Fast charging is divided into constant current charging and pulse charging. Constant current charging is to charge the battery with a constant current, and pulse charging is to charge the battery with pulse current first. [0004] In the existing pulse charging process, the general charging time is between 120-150 hours. Due to the long charging time, not only the production efficiency is insufficient, but also the energy consumption is large, and the formation efficiency of the battery is reduced. The initial heat of the battery is reduced and the service life of the battery is shortened. [0005] In the application document 201610496165.1, a brand-new charging process is provided to meet the purpose of reducing energy consumption, improving formation efficiency, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/44
CPCH01M10/446Y02E60/10
Inventor 母建平戴海娣
Owner ANHUI YONGHENG STORAGE BATTERY