CN111477983A - Charging process for improving battery cycle performance - Google Patents
Charging process for improving battery cycle performance Download PDFInfo
- Publication number
- CN111477983A CN111477983A CN202010292732.8A CN202010292732A CN111477983A CN 111477983 A CN111477983 A CN 111477983A CN 202010292732 A CN202010292732 A CN 202010292732A CN 111477983 A CN111477983 A CN 111477983A
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- Prior art keywords
- battery
- current
- charging
- discharging
- cycle performance
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a charging process for improving the cycle performance of a battery, and relates to the technical field of battery production. According to the invention, through setting a charging and discharging process of twenty-two steps, the traditional acid extraction stage is advanced, after the acid extraction is finished, the battery is firstly kept stand for 0.25h and then charged for 13h with 1A low current, the capacity of the obtained battery is improved by 5% compared with that of the conventional battery, and the cycle life of the battery is prolonged by about 10%.
Description
Technical Field
The invention belongs to the technical field of battery production, and particularly relates to a charging process for improving the cycle performance of a battery.
Background
The formation electric quantity of the container formation of the storage battery is one of main factors influencing the formation of the storage battery, the formation electric quantity is too low, active substances cannot be fully converted, the content of lead dioxide is low, the initial performance of the storage battery is poor, the formation electric quantity is high, besides energy loss is increased, temperature rise in the formation process is not easy to control, impact of gas on a polar plate is large, and the service life of the storage battery is influenced.
Disclosure of Invention
The invention aims to provide a charging process for improving the cycle performance of a battery, which reduces the time required by a formation process and improves the charging efficiency and the charging effect by setting a charging and discharging process with twenty-two steps.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a charging process for improving the cycle performance of a battery, which comprises the following steps:
stp1, charging the battery for 1h with a current of 3A;
stp2, charging the battery with a current of 8A for 2 h;
stp3, charging the battery for 4h with a current of 9.5A;
stp4, charging the battery with a current of 6A for 2 h;
stp5, discharging the battery for 0.25h with a current of 5A;
stp6, charging the battery for 2h with a current of 9.5A;
stp7, discharging the battery for 0.25h with a current of 8A;
stp8, charging the battery for 2h with a current of 9.5A;
stp9, discharging the battery with a current of 5A for 0. h;
stp10, charging the battery for 2h with a current of 9.5A;
stp11, discharging the battery for 0.5h with a current of 10A;
stp12, charging the battery for 2h with a current of 9.5A;
stp13, discharging the battery for 0.5h with a current of 10A;
stp14, charging the battery for 3h with a current of 9.5A;
stp15, charging the battery with a current of 5A for 2 h;
stp16 discharge the battery for 1.83h with a current of 10A
Stp17, continuously discharging the battery for 0.5h by using the current of 10A until the voltage of the single battery is 10.1V;
stp18, charging the battery for 2h with a current of 9.5A;
stp19, charging the battery for 2h with a current of 5.5A;
stp20, charging the battery for 2.5h with a current of 1.2A;
stp21, standing the battery for 0.25 h;
stp22, the battery was charged with a current of 3A for 13 h.
Further, during Stp20, the internalization process was completed by acid extraction after the battery was charged with 1.2A of current.
The invention has the following beneficial effects:
according to the invention, the traditional acid extraction stage is advanced, after the acid extraction is finished, the battery is firstly kept stand for 0.25h and then charged for 13h by 1A low current, so that the capacity of the obtained battery is improved by 5% compared with that of the conventional battery, and the cycle life of the battery is prolonged by about 10%.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Detailed Description
Examples
A charging process for improving the cycle performance of a battery comprises the following steps:
stp1, charging the battery for 1h with a current of 3A;
stp2, charging the battery with a current of 8A for 2 h;
stp3, charging the battery for 4h with a current of 9.5A;
stp4, charging the battery with a current of 6A for 2 h;
stp5, discharging the battery for 0.25h with a current of 5A;
stp6, charging the battery for 2h with a current of 9.5A;
stp7, discharging the battery for 0.25h with a current of 8A;
stp8, charging the battery for 2h with a current of 9.5A;
stp9, discharging the battery with a current of 5A for 0. h;
stp10, charging the battery for 2h with a current of 9.5A;
stp11, discharging the battery for 0.5h with a current of 10A;
stp12, charging the battery for 2h with a current of 9.5A;
stp13, discharging the battery for 0.5h with a current of 10A;
stp14, charging the battery for 3h with a current of 9.5A;
stp15, charging the battery with a current of 5A for 2 h;
stp16 discharge the battery for 1.83h with a current of 10A
Stp17, continuously discharging the battery for 0.5h by using the current of 10A until the voltage of the single battery is 10.1V;
stp18, charging the battery for 2h with a current of 9.5A;
stp19, charging the battery for 2h with a current of 5.5A;
stp20, charging the battery for 2.5h by using a current of 1.2A, and pumping acid after the charging is finished to finish the internal formation process;
stp21, standing the battery for 0.25 h;
stp22, the battery was charged with a current of 3A for 13 h.
Comparing the battery of the embodiment with the battery of the prior art, the detection result is as follows:
| item | Initial volume/min | Cycle life/time |
| Experimental group | 130 | 425 |
| Comparison group | 124 | 385 |
| Lifting of | 4.84％ | 10.39％ |
As can be seen from the above, the capacity of the battery of the invention is improved by 5% compared with the conventional battery, and the cycle life of the battery is improved by about 10%.
According to the invention, a production process flow of firstly pumping acid and then charging with 1A low current for 13H is adopted, after the pumping acid is completed, the impact of the low current on the internal gas potential of the battery is small, the internal gas potential and the external gas potential reach a balanced state after the process is finished, and after the valve of the battery is covered, the problem of tripping the safety valve can be avoided.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (2)
1. A charging process for improving the cycle performance of a battery is characterized in that: the method comprises the following steps:
stp1, charging the battery for 1h with a current of 3A;
stp2, charging the battery with a current of 8A for 2 h;
stp3, charging the battery for 4h with a current of 9.5A;
stp4, charging the battery with a current of 6A for 2 h;
stp5, discharging the battery for 0.25h with a current of 5A;
stp6, charging the battery for 2h with a current of 9.5A;
stp7, discharging the battery for 0.25h with a current of 8A;
stp8, charging the battery for 2h with a current of 9.5A;
stp9, discharging the battery with a current of 5A for 0. h;
stp10, charging the battery for 2h with a current of 9.5A;
stp11, discharging the battery for 0.5h with a current of 10A;
stp12, charging the battery for 2h with a current of 9.5A;
stp13, discharging the battery for 0.5h with a current of 10A;
stp14, charging the battery for 3h with a current of 9.5A;
stp15, charging the battery with a current of 5A for 2 h;
stp16 discharge the battery for 1.83h with a current of 10A
Stp17, continuously discharging the battery for 0.5h by using the current of 10A until the voltage of the single battery is 10.1V;
stp18, charging the battery for 2h with a current of 9.5A;
stp19, charging the battery for 2h with a current of 5.5A;
stp20, charging the battery for 2.5h with a current of 1.2A;
stp21, standing the battery for 0.25 h;
stp22, the battery was charged with a current of 3A for 13 h.
2. The charging process for improving the cycle performance of the battery as claimed in claim 1, wherein in the Stp20 process, after the battery is charged with 1.2A of current, acid is extracted to complete the internal formation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010292732.8A CN111477983A (en) | 2020-04-15 | 2020-04-15 | Charging process for improving battery cycle performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010292732.8A CN111477983A (en) | 2020-04-15 | 2020-04-15 | Charging process for improving battery cycle performance |
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| CN111477983A true CN111477983A (en) | 2020-07-31 |
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| CN202010292732.8A Pending CN111477983A (en) | 2020-04-15 | 2020-04-15 | Charging process for improving battery cycle performance |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10189057A (en) * | 1996-12-24 | 1998-07-21 | Japan Storage Battery Co Ltd | Charging method for lead-acid battery |
| CN104134827A (en) * | 2014-07-09 | 2014-11-05 | 天能电池(芜湖)有限公司 | Free-standing internal formation charging process for storage battery |
| CN105226338A (en) * | 2015-10-20 | 2016-01-06 | 浙江天能动力能源有限公司 | A kind of lead acid accumulator rapid internalization becomes charging method |
| CN109216811A (en) * | 2018-09-11 | 2019-01-15 | 天能电池集团有限公司 | A kind of internal formation process of lead storage battery |
| CN110176638A (en) * | 2019-06-05 | 2019-08-27 | 天能电池(芜湖)有限公司 | 20Ah battery reduces by two days charge technologies of charging energy consumption |
| CN110676529A (en) * | 2019-09-10 | 2020-01-10 | 天能电池(芜湖)有限公司 | Low-energy-consumption 2-day internal formation charging process for 6-DZF-23 battery |
| CN110797599A (en) * | 2019-10-15 | 2020-02-14 | 江西京九电源（九江）有限公司 | Container formation method of lead-acid storage battery for electric road vehicle |
| CN110911727A (en) * | 2019-12-05 | 2020-03-24 | 天能电池(芜湖)有限公司 | Low-energy-consumption charging process for storage battery |
-
2020
- 2020-04-15 CN CN202010292732.8A patent/CN111477983A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10189057A (en) * | 1996-12-24 | 1998-07-21 | Japan Storage Battery Co Ltd | Charging method for lead-acid battery |
| CN104134827A (en) * | 2014-07-09 | 2014-11-05 | 天能电池(芜湖)有限公司 | Free-standing internal formation charging process for storage battery |
| CN105226338A (en) * | 2015-10-20 | 2016-01-06 | 浙江天能动力能源有限公司 | A kind of lead acid accumulator rapid internalization becomes charging method |
| CN109216811A (en) * | 2018-09-11 | 2019-01-15 | 天能电池集团有限公司 | A kind of internal formation process of lead storage battery |
| CN110176638A (en) * | 2019-06-05 | 2019-08-27 | 天能电池(芜湖)有限公司 | 20Ah battery reduces by two days charge technologies of charging energy consumption |
| CN110676529A (en) * | 2019-09-10 | 2020-01-10 | 天能电池(芜湖)有限公司 | Low-energy-consumption 2-day internal formation charging process for 6-DZF-23 battery |
| CN110797599A (en) * | 2019-10-15 | 2020-02-14 | 江西京九电源（九江）有限公司 | Container formation method of lead-acid storage battery for electric road vehicle |
| CN110911727A (en) * | 2019-12-05 | 2020-03-24 | 天能电池(芜湖)有限公司 | Low-energy-consumption charging process for storage battery |
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Application publication date: 20200731 |