CN114374003B - Method for identifying formation charging micro-short circuit of deep-cycle battery for two-wheeled vehicle - Google Patents
Method for identifying formation charging micro-short circuit of deep-cycle battery for two-wheeled vehicle Download PDFInfo
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- CN114374003B CN114374003B CN202111520671.7A CN202111520671A CN114374003B CN 114374003 B CN114374003 B CN 114374003B CN 202111520671 A CN202111520671 A CN 202111520671A CN 114374003 B CN114374003 B CN 114374003B
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- 238000007600 charging Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 238000012216 screening Methods 0.000 claims abstract description 5
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 12
- 238000010277 constant-current charging Methods 0.000 claims description 10
- 238000010278 pulse charging Methods 0.000 claims description 10
- 238000010280 constant potential charging Methods 0.000 claims description 6
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000012795 verification Methods 0.000 abstract description 2
- 230000010287 polarization Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
-
- 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
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
Abstract
A method of identifying a deep cycle battery internalized charging micro-short for a two-wheeled vehicle, comprising: s1, correcting the accuracy of voltage acquisition and output current of a charger after the storage battery is put on a shelf and charged; s2, screening, charging for 3 hours at the end of formation of the storage battery with small current, checking the inspection voltage of each battery after running for 1 hour, actually measuring the battery with the voltage lower than the average voltage of 0.3V of the same loop, and if the actually measured voltage is lower than 0.3V, making a suspected micro short circuit of the battery and making a mark; s3, confirming and marking the battery to stand for 2 hours, judging the micro short circuit if the open circuit voltage is lower than 13.0V, detecting heavy current discharge if the test voltage is normal, fully charging the battery at constant voltage, and standing for 2 hours to test the open circuit voltage if the discharge is less than 50 minutes or the open circuit voltage is less than 13.0V after the battery is fully charged, and judging the micro short circuit; through verification, the micro-short-circuit battery can be effectively identified, and outflow of the micro-short-circuit battery is avoided.
Description
Technical Field
The invention belongs to the technical field of identification of micro-short-circuit batteries, and particularly relates to a method for identifying a deep-cycle battery internal formation charging micro-short circuit for a two-wheeled vehicle.
Background
With the continuous development of the electric bicycle industry, the market demand of power batteries for electric bicycles is continuously increased, and meanwhile, the requirements of the aspects such as the admission regulations of the battery industry, clean production and the like are met by the state, the internal formation of lead-acid batteries for two-wheel vehicles for electric vehicles is comprehensively carried out, and various technical problems exist in the internal formation charging of batteries, particularly for deep-cycle batteries for two-wheel vehicles with relatively surplus design capacity, the micro-short-circuit batteries generated in the internal formation charging process have short standing time before shipment, high-current detection is not carried out, the batteries are difficult to identify in time during shipment, the batteries are matched and shipped, and finally the whole battery is very invalid for shipment.
The battery assembled by the used green plates can only identify the obviously short-circuited battery when the battery is assembled and disconnected through the short-circuited meter-making detection, and the micro-short-circuited battery is not easy to identify, so that the micro-short-circuited battery can flow to the charging for charging, and the battery is micro-short-circuited, can be detected to be qualified through a capacity detection part, and can not effectively identify the micro-short-circuited battery due to capacity detection data adopted by matching, so that the micro-short-circuited battery is easy to flow out, and finally returns and customer complaints are generated. In view of the above, there is a need to identify micro-shorted cells prior to the cell recharging process or packaging to reduce losses.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for identifying the internal formation charging micro-short circuit of a deep-cycle battery for a two-wheeled vehicle, which comprises the following specific technical scheme:
a method of identifying a deep cycle battery internalized charging micro-short for a two-wheeled vehicle, the method comprising the steps of:
S1, correcting the current and voltage of the charger
After each batch of storage batteries are put on a rack, starting a charger to charge the batteries, immediately correcting the accuracy of voltage acquisition and output current of the charger, and ensuring that the current output difference is within +/-3% and the voltage acquisition difference of single batteries is within 0.05V;
S2, screening suspected micro-short-circuit battery
Performing internal formation charging on the storage battery, and performing low-current charging after discharge capacity testing is finished;
The charger is adjusted to carry out low-current charging for 3 hours, inspection voltage of each battery displayed by the computer control system is checked after the operation is carried out for 1 hour, and the battery with the voltage lower than the average voltage of the same loop by 0.3V is marked;
the corresponding staff find the marked battery and use a universal multimeter to measure the actual voltage of the battery for confirmation;
If the measured battery voltage of the battery is lower than the average voltage of the same loop by 0.3V, the battery is suspected to be micro-short-circuited, and the battery is identified;
s3, confirming micro-short circuit battery
Picking out the identified battery, standing the battery for 2 hours, then testing the open-circuit voltage of the battery, and judging the micro short circuit of the battery if the open-circuit voltage is lower than 13.0V;
when the test voltage is normal, carrying out heavy current discharge detection, carrying out constant voltage charging, standing for 2 hours after the charging is full, and then testing the open-circuit voltage;
when the discharge of the large current is detected, the discharge is less than 50mi < n >, and the micro short circuit can be judged;
The open circuit voltage tested after full charge is less than 13.0V, and the micro short circuit can be judged;
and (3) picking and analyzing the battery with the determined micro short circuit, and can not be used.
Further, in the above-described small-current charging operation, the small current is set to 0.01C 2.
Further, in the above-described high-current discharge detection, the high-current setting is 1C 2.
Further, in the constant voltage charging operation, the constant voltage value was 14.7V and the current limit was 0.2C 2.
Further, when the storage battery is subjected to internal formation charging, the internal formation charging comprises constant current charging and pulse charging; firstly, carrying out low-current constant-current charging on the storage battery, carrying out pulse charging when the voltage of the battery rises to a certain value, stopping pulse charging when the charging electric energy is close to the rated capacity of the battery, and carrying out low-current constant-current charging to fully charge the electric quantity of the battery.
The beneficial effects of the invention are as follows:
According to the identification method, the suspected micro-short-circuited battery is screened out through low-current charging, then the micro-short-circuited battery is confirmed through high-current discharging detection, and the micro-short-circuited battery can be effectively identified through verification and is prevented from flowing out, so that the problem of goods returning and customer complaints caused by the micro-short circuit of the battery is solved, and the product quality and customer experience are improved.
Drawings
FIG. 1 illustrates a flow chart of a method of identifying a deep cycle battery internalized charging micro-short for a two-wheeled vehicle in accordance with the present invention;
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
A method of identifying a deep cycle battery internalized charging micro-short for a two-wheeled vehicle, the method comprising the steps of:
step one: correcting charger current and voltage
After each batch of storage batteries are put on a rack, starting a charger to charge the batteries, immediately correcting the accuracy of voltage acquisition and output current of the charger, and ensuring that the current output difference is within +/-3% and the voltage acquisition difference of single batteries is within 0.05V;
step two: screening suspected micro-short-circuit battery
Performing internal formation charging on the storage battery, and performing low-current charging after discharge capacity testing is finished;
The charger is adjusted to carry out low-current charging for 3 hours, inspection voltage of each battery displayed by the computer control system is checked after the operation is carried out for 1 hour, and the battery with the voltage lower than the average voltage of the same loop by 0.3V is marked;
the corresponding staff find the marked battery and use a universal multimeter to measure the actual voltage of the battery for confirmation;
If the measured battery voltage of the battery is lower than the average voltage of the same loop by 0.3V, the battery is suspected to be micro-short-circuited, and the battery is identified;
specifically, when the small-current charging operation is performed, the small-current setting is 0.01C 2;
step three: identification of micro-short cell
Picking out the identified battery, standing the battery for 2 hours, then testing the open-circuit voltage of the battery, and judging the micro short circuit of the battery if the open-circuit voltage is lower than 13.0V;
when the test voltage is normal, carrying out heavy current discharge detection, carrying out constant voltage charging, standing for 2 hours after the charging is full, and then testing the open-circuit voltage;
when the discharge of the large current is detected, the discharge is less than 50mi < n >, and the micro short circuit can be judged;
The open circuit voltage tested after full charge is less than 13.0V, and the micro short circuit can be judged;
the battery with the determined micro short circuit is picked out and analyzed, and the battery can not be used;
Specifically, when the high-current discharge detection is performed, the high-current setting is 1C 2;
specifically, when the constant voltage charging operation is performed, the constant voltage is 14.7V and the current limit is 0.2C 2.
For battery internal formation, an operation mode is provided, and the operation mode is mainly divided into three stages:
the first stage: low current constant current charging
In the initial stage of charging, the polarization reaction generated by the battery is small, and the battery can be effectively increased in capacity in a short time by adopting small-current constant-current charging, and the sulfuration reaction in the battery can be reduced;
And a second stage: pulse charging
When the voltage of the rechargeable battery in the first stage rises to a certain value, pulse charging can be carried out, the pulse charging period is charging-standing-discharging-standing, charging is carried out firstly, then standing is carried out, the influence of partial ohmic polarization and concentration polarization on the battery can be eliminated, then the electrochemical polarization accumulated in the charging process is eliminated through short-time rapid discharging, the temperature rise of the battery can be controlled, and the battery can be kept standing for a period of time after one period is finished, and then the next period is carried out, so that the influence of continuous current impact on the battery in a short time is mainly avoided;
And a third stage: low current constant current charging
When the charging electric energy is close to the rated capacity of the battery, pulse charging is stopped, and then low-current constant-current charging is performed, so that the electric quantity of the battery is full, the electric quantity of the battery is kept sufficient, and the condition that the battery is in a virtual state or is not full is avoided.
When the temperature of the battery is higher, the circulating water can be adopted for cooling operation, so that the temperature of the battery is ensured to be within a controllable range.
And identifying and picking out suspected micro-short-circuit batteries by adjusting the final charging current and screening batteries with larger battery voltage deviation, and further confirming the battery capacity and the voltage state by secondary single heavy current detection, so that the micro-short-circuit batteries are finally identified, and the outflow is avoided.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (5)
1. A method for identifying a deep cycle battery internal formation charging micro-short circuit for a two-wheeled vehicle is characterized by comprising the following steps: the method comprises the following steps:
S1, correcting the current and voltage of the charger
After each batch of storage batteries are put on a rack, starting a charger to charge the batteries, immediately correcting the accuracy of voltage acquisition and output current of the charger, and ensuring that the current output difference is within +/-3% and the voltage acquisition difference of single batteries is within 0.05V;
S2, screening suspected micro-short-circuit battery
Performing internal formation charging on the storage battery, and performing low-current charging after discharge capacity testing is finished;
The charger is adjusted to carry out low-current charging for 3 hours, inspection voltage of each battery displayed by the computer control system is checked after the operation is carried out for 1 hour, and the battery with the voltage lower than the average voltage of the same loop by 0.3V is marked;
the corresponding staff find the marked battery and use a universal multimeter to measure the actual voltage of the battery for confirmation;
If the measured battery voltage of the battery is lower than the average voltage of the same loop by 0.3V, the battery is suspected to be micro-short-circuited, and the battery is identified;
s3, confirming micro-short circuit battery
Picking out the identified battery, standing the battery for 2 hours, then testing the open-circuit voltage of the battery, and judging the micro short circuit of the battery if the open-circuit voltage is lower than 13.0V;
when the test voltage is normal, carrying out heavy current discharge detection, carrying out constant voltage charging, standing for 2 hours after the charging is full, and then testing the open-circuit voltage;
When the discharge of the large current is detected, the discharge is less than 50 minutes, and the micro short circuit can be judged;
The open circuit voltage tested after full charge is less than 13.0V, and the micro short circuit can be judged;
the battery with the micro short circuit confirmed is picked out and analyzed, and can not be used.
2. The method for identifying the deep cycle battery internalization charging micro-short circuit for the two-wheeled vehicle according to claim 1, wherein the method comprises the following steps: the small current setting is 0.01C 2 when the small current charging operation is performed as described above.
3. The method for identifying the deep cycle battery internalization charging micro-short circuit for the two-wheeled vehicle according to claim 1, wherein the method comprises the following steps: in the above-described high-current discharge detection, the high-current setting was 1C 2.
4. The method for identifying the deep cycle battery internalization charging micro-short circuit for the two-wheeled vehicle according to claim 1, wherein the method comprises the following steps: when the constant voltage charging operation is performed, the constant voltage is 14.7V and the current limit is 0.2C 2.
5. The method for identifying the deep cycle battery internalization charging micro-short circuit for the two-wheeled vehicle according to claim 1, wherein the method comprises the following steps: when the storage battery is subjected to internal formation charging, the internal formation charging comprises constant current charging and pulse charging; firstly, carrying out low-current constant-current charging on the storage battery, carrying out pulse charging when the voltage of the battery rises to a certain value, stopping pulse charging when the charging electric energy is close to the rated capacity of the battery, and carrying out low-current constant-current charging to fully charge the electric quantity of the battery.
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| CN202111520671.7A CN114374003B (en) | 2021-12-13 | 2021-12-13 | Method for identifying formation charging micro-short circuit of deep-cycle battery for two-wheeled vehicle |
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| CN202111520671.7A CN114374003B (en) | 2021-12-13 | 2021-12-13 | Method for identifying formation charging micro-short circuit of deep-cycle battery for two-wheeled vehicle |
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| CN114374003B true CN114374003B (en) | 2024-04-19 |
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