CN113933207A - Quantitative method for evaluating quality of lead-acid battery - Google Patents
Quantitative method for evaluating quality of lead-acid battery Download PDFInfo
- Publication number
- CN113933207A CN113933207A CN202111231062.XA CN202111231062A CN113933207A CN 113933207 A CN113933207 A CN 113933207A CN 202111231062 A CN202111231062 A CN 202111231062A CN 113933207 A CN113933207 A CN 113933207A
- Authority
- CN
- China
- Prior art keywords
- plate
- evaluated
- lead
- quality
- evaluating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
-
- 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
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
A quantitative method for evaluating the quality of a lead-acid battery is characterized by comprising the following steps: the method comprises the following steps: sampling a plurality of polar plates to be evaluated; recording the weight of each plate to be evaluated as W0; placing a polar plate to be evaluated on a vibration table through a sealed container, and horizontally placing the polar plate in the sealed container; the vibration table is tested and vibrated in a sine residence mode, the initial frequency is not less than 60Hz, the fixed acceleration is not less than 82Hz, the acceleration peak value is not less than 10G, and the resonance movement is not less than 10 min; weighing each vibrated polar plate to be evaluated, and recording as W1; calculating the weight loss rate W% = (W0-W1)/W0 of each plate to be evaluated; and taking the average value according to the weight loss rate of each plate to be evaluated. The method is used for qualitatively or quantitatively judging the curing quality/softening and dropping degree of the active substance and reducing human factors.
Description
Technical Field
The invention belongs to the field of lead-acid storage batteries, and particularly relates to a method for evaluating the curing quality of a lead-acid battery or/and evaluating the softening and falling of an active substance of a positive electrode of a failed battery.
Background
The solidification of lead-acid battery plate is an important technological process in the production process of accumulator plate, and its action is mainly to make active material and active material form stable structure, at the same time the grid oxidation and active material are adhered to form structure with good interface, and the structure and binding layer of active material can directly affect almost all the performances of battery, specially its service life. It is therefore important to select a suitable method for evaluating the quality of the cure. At present, a dropping method is mainly adopted for evaluating the curing quality, so that the cured polar plate drops from a fixed height, and the weight loss rate is calculated. However, the method has large errors, and the deviation of the operation and the falling height of each person can influence the test result. Therefore, a method for evaluating the curing quality by avoiding errors caused by human factors is needed.
Meanwhile, anatomical analysis of lead acid battery failures is critical to the technological improvement of lead acid batteries. At present, the failure mode of a lead-acid battery is mainly that a positive active substance falls off, after a polar plate is dissected and taken out, a part of poorly combined active substance is still adsorbed on the polar plate and is generally washed away by water, and then the judgment of technical staff is determined by experience, so that the qualitative judgment cannot be carried out accurately, the judgment is easy to cause misjudgment subjectively, the water washing is easy to cause the damage of the normal structure of the polar plate, and the conclusion judgment of the failure mode is influenced, so that a method for quantitatively judging the softening and falling degree of the active substance is needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a quantitative method for evaluating the quality of a lead-acid battery, which is used for qualitatively or quantitatively judging the solidification quality/softening and dropping degree of an active substance and reducing human factors.
The technical scheme of the invention is as follows:
a quantitative method for evaluating the quality of a lead-acid battery comprises the following steps:
sampling a plurality of polar plates to be evaluated;
the weight of each plate to be evaluated is recorded as W0;
placing the polar plate to be evaluated on a vibration table through a sealed container, wherein the polar plate to be evaluated is horizontally placed in the sealed container and cannot be stacked; the vibration table is tested and vibrated in a sine residence mode, the initial frequency is not less than 60Hz, the fixed acceleration is not less than 82Hz, the acceleration peak value is not less than 10G, and the resonance movement is not less than 10 min;
weighing each vibrated polar plate to be evaluated, and recording as W1;
calculating the weight loss rate W% of each plate to be evaluated as (W0-W1)/W0;
and taking the average value according to the weight loss rate of each plate to be evaluated.
When used to evaluate the cure quality of lead acid batteries: the pole plate to be evaluated is a solidified pole plate, and the sampled solidified pole plate is placed in a sealed environment for storage;
when used to evaluate softening and shedding of a positive electrode active material of a failed battery: the pole plate to be evaluated is a failed positive plate; the sampling method comprises the following steps: according to the battery dissection process, cutting off a battery cover of a dead battery stored at normal temperature, and sampling a plurality of dead positive plates from a middle cell of a battery jar, wherein the normal temperature is 18-28 ℃; preservation method of the sampled failed positive electrode: soaking the sampled failed anode in water, and placing at room temperature, wherein the room temperature is 18-28 ℃, the air temperature is 18-28 ℃, namely the standard environment specified by GB/T2918, and the storage time is not more than 10 days; wiping the surface of the failed positive electrode with AGM separator paper before vibration until there is no water mark on the surface of the failed positive electrode.
When used to evaluate softening and shedding of a positive electrode active material of a failed battery: wiping the surface of the vibrating plate to be evaluated by using AGM separator paper until no water mark exists on the surface of the plate to be evaluated, weighing and recording as W1.
The dead battery is placed in a production place, a use place or a warehouse at normal temperature.
The sealed container is a white cuboid PP plastic groove, and the upper opening of the plastic groove is sealed by a PE film.
The height of the plastic groove is larger than 10cm, so that the polar plate is prevented from flying out in the vibration process, the width and the length are selected according to the size of the polar plate, the length and the width are larger than 5cm, the raw polar plate to be evaluated can not be stacked and is horizontally placed in the plastic groove according to the determination of the vibration table, the PE film is fixed by the adhesive tape, and the liquid or solid splashed out during vibration is prevented from corroding the vibration table. The white plastic groove is placed on a vibration table and is fixed by screwing down a screw with a wrench.
The vibration table test selects a sine residence mode to vibrate, the initial frequency is 60Hz, the fixed acceleration is 82Hz, the acceleration peak value is 10G, and the resonance movement lasts for 10 min.
The vibration table is a vibration table special for battery detection and a Dongling vibration table.
The number of green plates to be evaluated was at least 10, which were used for MSA analysis.
The lead-acid battery curing process is a vital production process of the lead-acid battery, but no method for evaluating the curing quality is available. In the traditional method, due to large errors of human operation factors, polar plates with large quality difference can be compared, but polar plates with equivalent quality cannot be accurately evaluated. Compared with the existing falling method for evaluating the curing quality, the method has the advantage that the manual operation error is smaller. The method can be used for qualitatively or quantitatively judging the curing quality, avoids errors caused by human factors, and evaluates the quality of the green plate curing quality with stable and reliable data.
The failure analysis of the lead-acid battery is used as an important component of the technical development of the lead-acid battery, and the accurate judgment of the failure mode and the failure degree of the battery is important for the next improvement and the technical accumulation of the lead-acid battery. Softening and shedding of the positive active material is the most common failure mode of the current lead-acid battery. The softening and falling of the positive active material refers to a failure mode that the positive active material and a grid or the active material and the active material are loosely combined and poorly connected, and the active material falls off. The conventional evaluation of softening and dropping of the active substance is qualitative judgment, mainly depends on the judgment of technical personnel by naked eyes, or washing under certain water pressure, the former has subjective misjudgment, and the latter is not easy to control, so that the active substance which is normally connected is easy to wash and drop, and result deviation is caused. The judgment error causes the improvement or the technology accumulation has deviation, and certain loss is brought. In the prior art, the softening and falling degree of the active substance is mainly judged by naked eyes and is qualitative judgment, so that judgment errors are easily caused subjectively, and the conclusion judgment of a failure mode is influenced. The method is used for evaluating the softening and dropping of the active substance of the positive electrode of the failed battery, and qualitatively or quantitatively analyzing the softening degree of the active substance by adopting a vibration method instead of a manual or water washing mode. The invention adopts the vibration table to vibrate the polar plate to be evaluated without adopting ultrasonic vibration. The ultrasonic vibration converts the sound energy of the power ultrasonic frequency source into mechanical vibration, and the ultrasonic wave is radiated to the cleaning liquid in the groove through the cleaning groove wall. The micro-bubbles in the liquid in the tank can keep vibrating under the action of sound waves due to the radiation of the ultrasonic waves, so that the surface of the solid is scrubbed, and the vibration is mainly concentrated on the surface of the solid. For the plate, substantially all particulate matter is more or less washed out by the ultrasound, thus affecting the surface of the plate and also introducing errors. The ultrasound can not act on the interface of the grid and the active substance for a thicker polar plate, and can act on a thinner polar plate. Meanwhile, the pole plate in which the softening and dropping of the active material is not particularly serious by the ultrasound cannot be evaluated. The invention reduces human factors and quantitatively analyzes the softening and falling degree of the active substances.
Detailed Description
When the invention is used for evaluating the curing quality of the lead-acid battery, the application range is the cured positive plate, and the specific contents are as follows:
and (3) sampling the cured positive plate (namely the green plate), and if the test cannot be immediately carried out, sealing and storing the sampled cured positive plate, wherein the green plate is not soaked in water.
The weight of the positive electrode plate after sampling and curing of the present invention was recorded as W0, wherein at least 10 positive electrode plates were sampled.
The cured positive plate sampled by the invention is immediately subjected to subsequent tests.
The test method of the invention comprises the following steps: the vibrating plate is placed in a white cuboid PP plastic groove, the height of the plastic groove is larger than 10cm so as to prevent the raw polar plate from flying out in the vibrating process, the width and the length are selected according to the size of the polar plate, the raw polar plate is flatly placed and can not be stacked, the upper opening of the white plastic groove is sealed by a PE film, the PE film is fixed by an adhesive tape, and the liquid or solid splashed out during vibration is prevented from corroding the vibrating table.
The white plastic groove is placed on a vibration table, and a wrench is used for screwing down the screw to fix the white plastic groove.
The vibration table used in the invention adopts a vibration table special for detecting the storage battery.
The vibration table used in the invention adopts a sine residence mode for vibration, the initial frequency is 60Hz, the fixed acceleration is 82Hz, the acceleration peak value is 10G, and the resonance movement lasts for 10 min. And after the vibration is finished, loosening the screw by using a wrench, taking the white plastic groove down, taking the polar plate out, and cleaning the vibration table if the electrodeless plate needs to vibrate. 1-4 green plates can be vibrated at one time.
The following steps are carried out:
(1) weighing the vibrated green plate, and recording as W1;
(2) calculating the weight loss rate W% of the single green plate as (W0-W1)/W0;
(3) and (3) calculating the weight loss rate of each green plate according to the step (2), then averaging, and comparing the numerical values, wherein the lower the numerical value is, the better the curing quality is.
The invention is further illustrated by the following ultrasound comparative example, drop-on comparative example, and examples of the invention.
Ultrasonic comparative example one:
taking 1 green plate, and recording the weight as W0; placing the green plate in an ultrasonic cleaning machine filled with water, drying and weighing the treated green plate at 60KHz frequency, 300W power and 10min time, drying in a vacuum drying oven at 60 + -5 deg.C for 24 + -5 h; is marked as W1; and calculating the weight loss rate W percent of the green plate (W0-W1)/W0 (W0).
Ultrasonic comparative example two:
taking 2 green polar plates, and recording the weight as W0;
placing the green plate in an ultrasonic cleaning machine filled with water, drying and weighing the treated green plate at the frequency of 65KHz and the power of 300W for 12min, and drying in a vacuum drying oven at the drying temperature of 60 +/-5 ℃ for 24 +/-5 h; is marked as W1; calculating the weight loss rate W% of each green plate to be (W0-W1)/W0; taking the average value as 0 according to the weight loss rate of each green plate;
ultrasonic comparative example three:
taking 3 green polar plates, and recording the weight as W0;
placing the green plate in an ultrasonic cleaning machine filled with water, drying and weighing the treated green plate at the frequency of 70KHz and the power of 300W for 15min, and drying in a vacuum drying oven at the drying temperature of 60 +/-5 ℃ for 24 +/-5 h; is marked as W1; calculating the weight loss rate W% of each green plate to be (W0-W1)/W0; taking the average value as 0 according to the weight loss rate of each green plate;
ultrasonic comparative example four:
taking 4 green polar plates, and recording the weight as W0;
placing the green plate in an ultrasonic cleaning machine filled with water, drying and weighing the treated green plate at the frequency of 75KHz and the power of 300W for 15min, and drying in a vacuum drying oven at the drying temperature of 60 +/-5 ℃ for 24 +/-5 h; is marked as W1; calculating the weight loss rate W% of each green plate to be (W0-W1)/W0; taking the average value as 0 according to the weight loss rate of each green plate;
ultrasound comparative example five:
taking 5 green polar plates; recording the weight of each green plate as W0;
placing the green plate in an ultrasonic cleaning machine filled with water, drying and weighing the treated green plate at the frequency of 80KHz and the power of 300W for 15min, and drying in a vacuum drying oven at the drying temperature of 60 +/-5 ℃ for 24 +/-5 h; is marked as W1; calculating the weight loss rate W% of each green plate to be (W0-W1)/W0; taking the average value as 0 according to the weight loss rate of each green plate;
comparative example of drop method:
taking 5 green polar plates, and recording the weight as W0; repeatedly dropping the green plate from the height of 1 meter for 5 times, weighing the plate to be evaluated after dropping, and recording as W1; the weight loss rate of 5 green plates was calculated as W% ((W0-W1)/W0) (-0.71), 1.32, 1.21, 0.33 and 2.11, respectively.
The first embodiment of the invention:
taking 1 green plate, and recording the weight as W0;
placing the green plate on a vibration table through a sealed container, wherein the vibration table is tested and vibrated in a sine residence mode, the initial frequency is 60Hz, the fixed acceleration is 82Hz, the acceleration peak value is 10G, and the resonance movement lasts for 10 min; weighing the vibrated green plate, and recording as W1; the weight loss rate W% of the green plate is calculated to be (W0-W1)/W0 to be 0.71.
Example two of the present invention:
taking 2 green polar plates;
recording the weight of each green plate as W0; placing the raw polar plates on a vibration table through a sealed container, wherein the raw polar plates cannot be stacked in the sealed container; the vibration table test selects a sine residence mode to vibrate, the initial frequency is 65Hz, the fixed acceleration is 82Hz, the acceleration peak value is 10G, and the resonance movement is 12 min; weighing each vibrated green plate, and recording as W1; calculating the weight loss rate W% of each green plate to be (W0-W1)/W0; and taking the average value of 0.75 according to the weight loss rate of each green plate.
Example three of the present invention:
taking 3 green polar plates;
recording the weight of each green plate as W0; placing the raw polar plates on a vibration table through a sealed container, wherein the raw polar plates cannot be stacked in the sealed container; the vibration table test selects a sine staying mode to vibrate, the initial frequency is 70Hz, the fixed acceleration is 82Hz, the acceleration peak value is 10G, and the resonance movement lasts for 15 min; weighing each vibrated green plate, and recording as W1; calculating the weight loss rate W% of each green plate to be (W0-W1)/W0; and averaging the weight loss rate of each green plate to be 0.85.
Example four of the present invention:
taking 4 green polar plates;
recording the weight of each green plate as W0; placing the weighed raw polar plates on a vibration table through a sealed container, wherein the raw polar plates cannot be stacked in the sealed container; the vibration table test selects a sine staying mode to vibrate, the initial frequency is 75Hz, the fixed acceleration is 82Hz, the acceleration peak value is 10G, and the resonance movement lasts for 15 min; weighing each vibrated green plate, and recording as W1; calculating the weight loss rate W% of each green plate to be (W0-W1)/W0; and averaging the weight loss rate of each green plate to be 0.67.
Example five of the invention:
taking 5 green polar plates;
recording the weight of each green plate as W0; placing the raw polar plates on a vibration table through a sealed container, wherein the raw polar plates cannot be stacked in the sealed container; the vibration table test selects a sine staying mode to vibrate, the initial frequency is 80Hz, the fixed acceleration is 85Hz, the acceleration peak value is 10G, and the resonance movement lasts for 15 min; weighing each vibrated green plate, and recording as W1; calculating the weight loss rate W% of each green plate to be (W0-W1)/W0; and averaging the weight loss rate of each green plate to be 0.72.
The table formed by the examples and comparative examples of the present invention is as shown in table one:
according to the table one, it can be known that ultrasound cannot be used for evaluating cured plates, the numerical difference of the weight loss rate obtained by the drop method is large, and the vibration method data is stable and can be used for evaluating the curing quality.
The method is used for quantitatively evaluating the softening and falling degree of the active substance, and the applicable range is the failed positive plate, and the specific contents are as follows:
the invention has the advantages that the sampling condition is adopted, and the taken out dead battery is stored in a production place, a use place or a storehouse at normal temperature.
The sampling method of the invention comprises the following steps: the failed positive plates are from failed batteries, the failed battery dissects according to the conventional dissection process, the positive plates to be tested are usually sampled in the middle three cells, and side plates are avoided, at least 10 positive plates are taken. Meanwhile, the positive plate should be taken out to avoid the falling of the active substance caused by external force.
The storage method after sampling of the invention comprises the following steps: if the sampled failed positive plate (called the positive plate for short) cannot be subjected to subsequent testing immediately, the prepared sample is gently put into water, soaked for 1h and placed in a standard environment (under the room temperature condition, the air temperature is 25 ℃) specified by GB/T2918; the surface was wiped with AGM spacer paper before shaking, so that no visible water mark was visible.
The plastic groove is placed on a vibration table and is fixed by screwing down a screw with a wrench. The vibration table used in the invention adopts a sine residence mode for vibration, the initial frequency is 80Hz, the fixed acceleration is 82Hz, the acceleration peak value is 10G, and the resonance movement lasts for 10 min. After the vibration is finished, the screw is unscrewed by using a wrench, the white plastic groove is taken down, the positive plate is taken out, and if the positive plate does not need to vibrate, the vibration table is cleaned.
The following steps are carried out:
(1) wiping the surface of the vibrated positive plate by using AGM partition paper, weighing the positive plate as W1 according to the condition that obvious water marks cannot be seen; drying is not needed, only the AGM partition paper is used for wiping the surface, and most importantly, the active substance structure of the polar plate can be damaged in the drying process, so that the result is inaccurate;
(2) calculating the softening and dropping rate W% of the active substance of the single positive plate as (W0-W1)/W0, wherein W0 is the weight of the positive plate known in the design of the battery;
(3) and (3) calculating the softening and shedding rate of each positive plate according to the step (2), and then averaging to obtain the final active material softening rate.
The invention can also judge the softening and falling degree of the active substances in the middle, lower and lower parts of the polar plate. The plates can be cut into upper, middle and lower parts, respectively, and calculated according to the above method. But care should be taken not to damage the plates during cutting.
The used things are common equipment of the lead-acid storage battery, and no extra investment is needed; the invention does not adopt a water washing mode, thereby avoiding the damage to the structure of the active substance caused by water washing; the invention judges the softening and falling degree of the active substance without adopting a manual mode; for the failed positive plate, the plate with the thickness of 4mm and 1.8mm is selected for experiments, and meanwhile, two 1.8mm plates with the active substance falling rate of 10-20% and more than 50% determined by experience are selected for experiments. The empirical judgment method is that the number of lattices on the positive plate grid of the active substance is manually counted. The data evaluated by the ultrasonic method comparative example and the vibration method of the present invention are as follows:
the invention is further illustrated below by comparing the ratio 1 with the examples according to the invention.
Comparative example of ultrasonic method:
wiping the surface of 5 failed positive plates by using AGM partition paper, wherein the weight of the failed positive plates is known weight W0 in battery design on the basis that obvious water marks cannot be seen; placing the failed positive plate in an ultrasonic cleaning machine filled with water, wherein the frequency is 80KHz, the power is 300W, and the time is 10min, wiping the surface of the treated positive plate by using AGM (absorptive glass mat) separator paper, and weighing and recording as W1 on the basis that no obvious water mark can be seen; the positive electrode weight loss rate to be evaluated W% (W0-W1)/W0 was calculated.
Examples of the invention:
soaking 5 positive plates in water gently for 1h, and wiping the surfaces with AGM separator paper, wherein the weight of the positive plates is W0 on the basis that obvious water marks cannot be seen; placing the positive plate on a vibration table through a sealed container, wherein the vibration table is used for testing and vibrating in a sine residence mode, the initial frequency is 80Hz, the fixed acceleration is 82Hz, the acceleration peak value is 10G, and the vibration time is 10 min; wiping the surface of the vibrated positive plate by using AGM partition paper, and weighing and recording as W1 according to the condition that obvious water marks cannot be seen; and calculating the weight loss rate W% of the green plate to be evaluated as (W0-W1)/W0.
The table formed by the quantitative method for evaluating the softening and falling of the active material of the lead-acid battery and the comparison example is shown as the second table:
from the test result, for a thick polar plate, the ultrasonic vibration method can only act on the surface, and the effect on the interface is small, so the test result is also small and inaccurate. And the ultrasonic vibration method is not a very serious polar plate for softening and dropping of the active substances, and cannot be evaluated.
Claims (8)
1. A quantitative method for evaluating the quality of a lead-acid battery is characterized by comprising the following steps: the method comprises the following steps:
sampling a plurality of polar plates to be evaluated;
the weight of each plate to be evaluated is recorded as W0;
placing the polar plate to be evaluated on a vibration table through a sealed container, and horizontally placing the polar plate to be evaluated in the sealed container; the vibration table is tested and vibrated in a sine residence mode, the initial frequency is not less than 60Hz, the fixed acceleration is not less than 82Hz, the acceleration peak value is not less than 10G, and the resonance movement is not less than 10 min;
weighing each vibrated polar plate to be evaluated, and recording as W1;
calculating the weight loss rate W% = (W0-W1)/W0 of each plate to be evaluated;
and taking the average value according to the weight loss rate of each plate to be evaluated.
2. A quantitative method for evaluating the quality of lead-acid batteries according to claim 1, characterized in that:
when used to evaluate the cure quality of lead acid batteries: the pole plate to be evaluated is a solidified pole plate, and the sampled solidified pole plate is placed in a sealed environment for storage;
when used to evaluate softening and shedding of a positive electrode active material of a failed battery: the pole plate to be evaluated is a failed positive plate; the sampling method comprises the following steps: cutting off a battery cover of a dead battery stored at normal temperature according to the anatomical flow of the battery, and sampling a plurality of dead positive plates from a middle cell of a battery jar; preservation method of the sampled failed positive electrode: flatly soaking the sampled failed positive electrode in water, and placing the positive electrode at room temperature for no more than 10 days; wiping the surface of the failed positive electrode with AGM separator paper before vibration until there is no water mark on the surface of the failed positive electrode.
3. A quantitative method for evaluating the quality of lead-acid batteries according to claim 2, characterized in that: when used to evaluate softening and shedding of a positive electrode active material of a failed battery: wiping the surface of the vibrating plate to be evaluated by using AGM separator paper until no water mark exists on the surface of the plate to be evaluated, weighing and recording as W1.
4. A quantitative method for evaluating the quality of lead-acid batteries according to claim 2, characterized in that: the dead battery is placed in a production place, a use place or a warehouse at normal temperature.
5. A quantitative method for evaluating the quality of lead-acid batteries according to claim 1, characterized in that: the sealed container is a plastic groove, and the upper opening of the plastic groove is sealed by a PE film.
6. A quantitative method for evaluating the quality of lead-acid batteries according to claim 1, characterized in that: the vibration table test selects a sine residence mode to vibrate, the initial frequency is 60Hz, the fixed acceleration is 82Hz, the acceleration peak value is 10G, and the resonance movement lasts for 10 min.
7. A quantitative method for evaluating the quality of lead-acid batteries according to claim 1, characterized in that: the vibration table is a special vibration table for detecting the storage battery.
8. A quantitative method for evaluating the quality of lead-acid batteries according to claim 1, characterized in that: the number of green sheets to be evaluated was at least 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111231062.XA CN113933207A (en) | 2021-10-22 | 2021-10-22 | Quantitative method for evaluating quality of lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111231062.XA CN113933207A (en) | 2021-10-22 | 2021-10-22 | Quantitative method for evaluating quality of lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113933207A true CN113933207A (en) | 2022-01-14 |
Family
ID=79283657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111231062.XA Pending CN113933207A (en) | 2021-10-22 | 2021-10-22 | Quantitative method for evaluating quality of lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113933207A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544418A (en) * | 2022-01-27 | 2022-05-27 | 天能电池集团(马鞍山)新能源科技有限公司 | Polar plate performance determination method based on positive plate grid corrosion layer and paste adhesion of lead storage battery |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4713304A (en) * | 1986-06-18 | 1987-12-15 | Gnb Incorporated | Method of preparing lead-acid battery plates and lead-acid batteries containing plates so prepared |
| CN1995965A (en) * | 2005-12-26 | 2007-07-11 | 比亚迪股份有限公司 | Method for determining dressing strength of battery electrode flake |
| DE102011051696B3 (en) * | 2011-07-08 | 2012-08-02 | Deutsche Edelstahlwerke Gmbh | Method for measuring the layer thickness of organic coatings of metallic base materials |
| CN207197760U (en) * | 2017-07-21 | 2018-04-06 | 骆驼集团襄阳蓄电池有限公司 | A kind of resistance to strength test frock of shaking of chloride plate |
| CN110220813A (en) * | 2019-06-28 | 2019-09-10 | 浙江天能电池(江苏)有限公司 | Accumulator anode board lead plaster softens detection method |
| CN209820998U (en) * | 2019-04-01 | 2019-12-20 | 骆驼集团襄阳蓄电池有限公司 | Lead-acid storage battery pole plate softening and falling evaluation test tool |
| CN110945709A (en) * | 2017-05-30 | 2020-03-31 | 泰坦先进能源解决方案公司 | Battery life estimation and capacity recovery |
| CN112284895A (en) * | 2020-09-27 | 2021-01-29 | 天能电池集团股份有限公司 | Method for detecting strength and estimating service life of positive plate of lead storage battery |
-
2021
- 2021-10-22 CN CN202111231062.XA patent/CN113933207A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4713304A (en) * | 1986-06-18 | 1987-12-15 | Gnb Incorporated | Method of preparing lead-acid battery plates and lead-acid batteries containing plates so prepared |
| CN1995965A (en) * | 2005-12-26 | 2007-07-11 | 比亚迪股份有限公司 | Method for determining dressing strength of battery electrode flake |
| DE102011051696B3 (en) * | 2011-07-08 | 2012-08-02 | Deutsche Edelstahlwerke Gmbh | Method for measuring the layer thickness of organic coatings of metallic base materials |
| CN110945709A (en) * | 2017-05-30 | 2020-03-31 | 泰坦先进能源解决方案公司 | Battery life estimation and capacity recovery |
| CN207197760U (en) * | 2017-07-21 | 2018-04-06 | 骆驼集团襄阳蓄电池有限公司 | A kind of resistance to strength test frock of shaking of chloride plate |
| CN209820998U (en) * | 2019-04-01 | 2019-12-20 | 骆驼集团襄阳蓄电池有限公司 | Lead-acid storage battery pole plate softening and falling evaluation test tool |
| CN110220813A (en) * | 2019-06-28 | 2019-09-10 | 浙江天能电池(江苏)有限公司 | Accumulator anode board lead plaster softens detection method |
| CN112284895A (en) * | 2020-09-27 | 2021-01-29 | 天能电池集团股份有限公司 | Method for detecting strength and estimating service life of positive plate of lead storage battery |
Non-Patent Citations (1)
| Title |
|---|
| 罗钰婷等: "铅酸电池轻量化板栅的失效机理", 《蓄电池》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544418A (en) * | 2022-01-27 | 2022-05-27 | 天能电池集团(马鞍山)新能源科技有限公司 | Polar plate performance determination method based on positive plate grid corrosion layer and paste adhesion of lead storage battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113933207A (en) | Quantitative method for evaluating quality of lead-acid battery | |
| CN101576607B (en) | Method for detecting nickel-hydrogen battery Diaphragm wet resistance and device thereof | |
| WO1990015450A1 (en) | Electrolytic storage cell monitoring system | |
| CN109100253B (en) | Detection method of lead-acid storage battery separator | |
| CN110340579A (en) | A kind of full-automatic battery battery core welding production wire management system and application method | |
| CN111504414B (en) | Battery cell gas production rate detection method and battery cell gas production rate detection device | |
| CN111595761A (en) | Method for testing corrosion resistance of positive plate grid | |
| CN104614276B (en) | Method for detecting divalent Pb ions in electrolyte of storage battery | |
| CN109632630B (en) | Method and equipment for testing adhesive force of battery pole piece | |
| CN112284895A (en) | Method for detecting strength and estimating service life of positive plate of lead storage battery | |
| CN113009364A (en) | Method for measuring alternating current impedance of failure battery | |
| CN109920970B (en) | Method for calculating liquid injection time of square aluminum-shell battery | |
| CN111189884A (en) | Measuring method of ion transmission resistance and testing method of tortuosity of pole piece coating and diaphragm | |
| CN113607595B (en) | Method for detecting corrosion layer of green plate | |
| US11656287B2 (en) | Battery defect screening device and method | |
| CN208125693U (en) | A kind of device detecting the anti-electrolyte stratification ability of partition | |
| CN208297448U (en) | A kind of AGM partition wet elasticity detection device | |
| CN204925223U (en) | Battery polygonal voltage testing arrangement | |
| CN109085082A (en) | A kind of pressurization capillary water absorption height and water absorption measuring device and measuring method | |
| CN112886107A (en) | Optimized button cell assembling method | |
| CN209387841U (en) | A kind of lithium battery voltage internal resistance detection device | |
| JP2001110458A (en) | Method for inspecting short circuit of battery abd apparatus for inspecting short circuit of battery | |
| CN113866311A (en) | Method for testing content and consumption of electrolyte in battery | |
| CN111895884A (en) | Device and method for testing acid climbing height of AGM partition plate under different pressures | |
| CN117783893B (en) | Lithium battery energy storage monitoring system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220114 |
|
| RJ01 | Rejection of invention patent application after publication |