Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of high-efficiency internalization method for 20ah lead-acid battery

A lead-acid battery, internal formation technology, applied in the direction of lead-acid battery, lead-acid battery construction, secondary batteries, etc., can solve the problems of poor formation effect, high energy consumption, long time, etc., to achieve low cost and good battery performance , into a good effect

Active Publication Date: 2020-09-25
CHAOWEI POWER CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process takes 3 days, which takes a long time, consumes a lot of energy, and has a slightly poorer formation effect.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The density of the electrolyte solution added before the battery is charged is controlled at 1.250g / cm 3 , and the battery is formed and charged in a water bath environment, the temperature of the water bath is 30°C, the internal temperature of the battery is controlled to be ≤55°C, and the charge and discharge current is controlled at ±0.01A.

[0030] 1) Add acid to the 20Ah lead-acid battery and let it stand for 1 hour;

[0031] 2) Charge the battery with a constant current of 1A for 2 hours;

[0032] 3) Charge the battery with a constant current of 2A for 2h;

[0033] 4) Charge the battery with a constant current of 3A for 3.5h;

[0034] 5) Charge the battery with a constant current of 5A for 7.5h;

[0035] 6) Charge the battery with a constant current of 2.5A for 6.5h;

[0036] 7) The battery is discharged at a constant current of 3A for 2h;

[0037] 8) Charge the battery with a constant current of 3.7A for 2 hours;

[0038] 9) The battery is charged and disch...

Embodiment 2

[0042] In addition to forming step 1)-8) as:

[0043] 1) Add acid to the 20Ah lead-acid battery and let it stand for 1 hour;

[0044] 2) Charge the battery with a constant current of 1A for 1h;

[0045] 3) Charge the battery with a constant current of 2A for 2h;

[0046] 4) Charge the battery with a constant current of 3A for 3h;

[0047] 5) Charge the battery with a constant current of 5A for 7h;

[0048] 6) Charge the battery with a constant current of 2.5A for 6h;

[0049] 7) Discharge the battery at a constant current of 3A for 1h;

[0050] 8) Charge the battery with a constant current of 3.7A for 2 hours;

[0051] All the other methods are completely consistent with Example 1.

Embodiment 3

[0053] In addition to forming step 1)-8) as:

[0054] 1) Add acid to the 20Ah lead-acid battery and let it stand for 1.5h;

[0055] 2) Charge the battery with a constant current of 1A for 1.5h;

[0056] 3) Charge the battery with a constant current of 2A for 1.5h;

[0057] 4) Charge the battery with a constant current of 3A for 3.5h;

[0058] 5) Charge the battery with a constant current of 5A for 7 hours;

[0059] 6) Charge the battery with a constant current of 2.5A for 6.5h;

[0060] 7) The battery is discharged at a constant current of 3A for 2 hours;

[0061] 8) Charge the battery with a constant current of 3.7A for 2 hours;

[0062] All the other methods are completely consistent with Example 1.

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 relates to the field of battery preparation, and discloses a high-efficiency internalization method for a 20Ah lead-acid battery. The method comprises the following steps: 1) adding acid to the 20Ah lead-acid battery and then standing still for 1-1.5h; 2) using a current of 1A 1‑2h charging; 3) 1.5‑2h charging with 2A current; 3‑3.5h charging with 3A current; 5) 7‑7.5h charging with 5A current; 6) 6‑6 charging with 2.5A current 6.5h; 7) Discharge with a current of 3A for 1-2h; 8) Charge with a current of 3.7A for 2h; 9) Charge and / or discharge several times with a current of 0-10A, each charge and / or discharge time is 0.25 -4h. The invention adjusts the charge and discharge time, sequence and current magnitude of the initial stage of formation in the battery, controls the formation time within 2 days, has good formation effect and low cost.

Description

technical field [0001] The invention relates to the field of battery preparation, in particular to a high-efficiency internalization method for a 20Ah lead-acid battery. Background technique [0002] Electric bicycles have become very popular in recent years, and their main power source is lead-acid batteries. There are two main formation methods of lead-acid batteries: one is the external formation of batteries, and the polar plates are formed and assembled into batteries to supplement electricity, and the other is For the internal formation of batteries, the raw plates are directly assembled into finished batteries, and then formed; while the external formation discharges more acid, sewage and dust than the internal formation, seriously polluting the environment, so the internal formation process has certain advantages. [0003] The Chinese patent application number 201410541611.7 discloses a multi-stage charge-discharge internal formation process for lead-acid batteries. ...

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 Patents(China)
IPC IPC(8): H01M10/44H01M10/12
CPCH01M10/12H01M10/446Y02E60/10Y02P70/50
Inventor 吴鑫王江林代少振项晨
Owner CHAOWEI POWER CO LTD