CN113376041A - Storage battery positive plate lead paste softening detection device - Google Patents
Storage battery positive plate lead paste softening detection device Download PDFInfo
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- CN113376041A CN113376041A CN202110594659.4A CN202110594659A CN113376041A CN 113376041 A CN113376041 A CN 113376041A CN 202110594659 A CN202110594659 A CN 202110594659A CN 113376041 A CN113376041 A CN 113376041A
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- positive plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/42—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
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- 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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- General Health & Medical Sciences (AREA)
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- Battery Electrode And Active Subsutance (AREA)
Abstract
本发明涉及蓄电池技术领域，公开了一种蓄电池正极板铅膏软化检测装置，包含支架（2）和检测机构，支架（2）上设有检测平台（21），待检正极板（1）置于检测平台（21）上；所述检测机构中，检测仪（4）安装在顶杆（42）底端，顶杆（42）通过复位弹簧（43）安装在横梁（44）上，压杆（42）转动连接在横梁（44）上，压杆（42）位于顶杆（41）的顶端之上，检测仪（4）的触点位于待检正极板（1）上方。利用本装置可准确计算出正极板活性物质的软化程度，为后续改进正板软化提供有效的判断依据，测量准确简便；依据测试结果在电池设计过程中对技术方案做出调整，从而防止或减缓正极活性物质软化脱落，延长蓄电池的寿命。
The invention relates to the technical field of batteries, and discloses a battery positive plate lead paste softening detection device, comprising a bracket (2) and a detection mechanism, a detection platform (21) is arranged on the bracket (2), and a positive plate (1) to be inspected is placed on the on the detection platform (21); in the detection mechanism, the detector (4) is installed on the bottom end of the ejector rod (42), the ejector rod (42) is installed on the beam (44) through the return spring (43), and the pressure rod (42) is rotatably connected to the beam (44), the pressing rod (42) is located above the top of the ejector rod (41), and the contact point of the detector (4) is located above the positive plate (1) to be tested. Using this device, the softening degree of the active material of the positive plate can be accurately calculated, which provides an effective judgment basis for the subsequent improvement of the softening of the positive plate, and the measurement is accurate and simple; according to the test results, the technical scheme is adjusted in the battery design process, so as to prevent or slow down the The positive active material softens and falls off, extending the life of the battery.
Description
Technical Field
The invention relates to the field of storage batteries, in particular to a storage battery positive plate lead paste softening detection device.
Background
The reaction process of the lead-acid storage battery is the conversion between chemical energy and electric energy. In actual use, after repeated charge and discharge, the positive electrode plate repeatedly and continuously expands to weaken the binding force between the active materials until the active materials fall off. In this phenomenon, the positive electrode plate active material is softened to a different degree, and some of the positive electrode plates are softened with the superficial active material and some are softened with the deep active material. Softening and dropping of the active material of the positive plate are an important reason for the failure of the lead-acid battery, and are in direct proportion to the service life of the battery, and the technical problem of slowing down the softening of the active material of the positive plate is always difficult. Firstly, at present, no instrument for testing the softening degree exists, and the visual sensory judgment is not scientific.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems in the prior art, the invention provides the storage battery positive plate lead paste softening detection device, the softening degree of the positive plate active substance can be accurately calculated by using the detection device, an effective judgment basis is provided for subsequent positive plate softening improvement, the measurement accuracy is high, and the measurement method is simple and convenient.
The technical scheme is as follows: the invention provides a lead paste softening detection device for a positive plate of a storage battery, which comprises a support and a detection mechanism, wherein the support is provided with a detection platform, and the positive plate to be detected is arranged on the detection platform; in the detection mechanism, a detector is installed at the bottom end of a mandril, the mandril is installed on a cross beam through a return spring, a pressure rod is rotatably connected to the cross beam and is positioned on the top end of the mandril, and a contact of the detector is positioned above the positive plate to be detected; the softening degree of the lead paste of the positive plate of the storage battery is detected by the following method by using the device: immersing the positive plate to be detected in pure water for 25-30 min, taking out and airing the excessive moisture on the surface, and placing the positive plate on a proper position on the detection platform; pressing the pressure lever downwards until a contact of the detector contacts the surface of the positive plate to be detected, and recording a numerical value; measuring a plurality of points and taking an average value; the larger the numerical value is, the harder the surface of the lead paste is, the lower the softening and falling degree of the lead paste on the surface of the positive plate to be detected is, the softer the surface of the lead paste is, the higher the softening and falling degree of the lead paste on the surface of the positive plate to be detected is.
Further, battery positive plate diachylon soften detection device still include the slider and be used for the translation the slider translation mechanism of slider, the slider is located testing platform is last, just the one end of slider with slider translation mechanism connects, wait to examine the positive plate and be located on the slider. The positive plate to be detected is located the slider, and through slider translation mechanism translation slider, then can the translation detect the positive plate for the detector can be detected the positive plate through the removal and remove the check point to next position, the multiple spot of being convenient for measurement after detecting one point of completion.
Preferably, the sliding block translation mechanism comprises a screw rod, a rocker and a sliding rail, the sliding rail is fixed on the detection platform, the sliding block is connected with the sliding rail in a sliding mode, one end of the screw rod is connected with the sliding block in a rotating mode, the middle of the screw rod is connected with a through screw hole in the side wall of the support in a threaded mode, and the other end of the screw rod penetrates through the through screw hole and then is fixedly connected with the rocker. When needing the translation slider to wait to examine the positive plate with the removal, wave the rocker, drive the lead screw and rotate around the screw that runs through on the support lateral wall, and then the lead screw can drive the slider translation, and then drives and wait to examine the positive plate translation on the slider, the multiple spot of being convenient for is measured.
Furthermore, the detection mechanism further comprises a guide rod perpendicular to the cross beam, the cross beam is mounted on the guide rod through an adjusting sleeve, and the adjusting sleeve is sleeved on the outer wall of the guide rod and locked on the guide rod through an adjusting bolt.
Preferably, the top end of the ejector rod is of a triangular cone structure. Through the setting of guide arm and adjusting sleeve for the height-adjustable of crossbeam, and then the contact distance of detector waits to examine the interval on positive plate surface adjustable.
Preferably, the detector is an LX-A type rubber durometer.
Has the advantages that: when the device is used for detecting the softening degree of the lead paste of the positive plate of the storage battery, the positive plate to be detected is taken out of the battery, is immersed in pure water for 25-35 minutes, and is taken out to dry excessive water on the surface; placing the positive plate on a detection platform at a proper position; pressing the detector to the surface of the positive plate to be detected, recording the numerical value, and measuring a plurality of points to obtain an average value; the larger the value, the harder the surface of the lead paste, and the smaller the value, the softer the surface of the lead paste, indicating that the positive electrode active material is softened and peeled off to a greater extent.
The testing method is simple and easy to operate, the lead paste softening rates of batteries with normal performance in different life cycles are simulated according to the principle, the result is reliable, and the technical scheme is adjusted in the battery design process according to the testing result, so that the softening and falling of the positive active substances are prevented or slowed down, and the service life of the storage battery is prolonged.
Drawings
FIG. 1 is a schematic partial sectional view of the present invention in front view.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The invention provides a lead paste softening detection device for a positive plate of a storage battery, which mainly comprises a bracket 2, a detection mechanism 4, a sliding block 3 and a sliding block translation mechanism for translating the sliding block 3, wherein the bracket 2 is provided with a detection platform 21, the sliding block 3 is positioned on the detection platform 21, and the positive plate 1 to be detected is arranged on the sliding block 3; the sliding block translation mechanism comprises a screw rod 22, a rocker 23 and a sliding rail 24, the sliding rail 24 is fixed on the detection platform 21, the sliding block 3 is in sliding connection with the sliding rail 24, one end of the screw rod 22 is in threaded connection with the sliding block 3, and the other end of the screw rod penetrates through the support 2 and is fixedly connected with the rocker 23. In the detection mechanism, the detector 4 is preferably an LX-A type rubber hardness tester, the detector 4 is installed at the bottom end of a top rod 41, the top rod 41 is installed on a cross beam 44 through a return spring 43, a pressure rod 42 is rotatably connected to the cross beam 44, the pressure rod 42 is located on the top end of the top rod 41, the top end of the top rod 41 is of a triangular cone structure, and a contact of the detector 4 is located above the positive plate 1 to be detected. The guide rod 45 is perpendicular to the cross beam 44, the cross beam 44 is mounted on the guide rod 45 through an adjusting sleeve 47, and the adjusting sleeve 47 is sleeved on the outer wall of the guide rod 45 and locked on the guide rod 45 through an adjusting bolt 46.
The detection method for detecting the positive plate to be detected by the storage battery positive plate lead paste softening detection device comprises the following steps:
immersing the positive plate 1 to be detected into pure water for 30 minutes, and taking out and airing the redundant water on the surface; placing the positive plate 1 to be detected at a proper position on the sliding block 3, wherein the positive plate to be detected is positioned between the sliding block 3 and a contact of the detector 4; adjust the position of adjusting sleeve 47 on guide arm 45 through adjusting bolt 46 for the height of detector 4 is suitable, then drives ejector pin 41 through depression bar 42 and compresses reset spring 43, and then detector 4 moves down to its contact and waits to examine positive plate 1 surface, records the numerical value of detector 4 this moment, measures many and takes the regional detection of average value. The larger the value, the harder the surface of the lead paste of the positive electrode plate 1 to be tested, and the smaller the value, the softer the surface of the lead paste of the positive electrode plate 1 to be tested, the greater the degree of softening and falling of the active material of the positive electrode plate 1 to be tested.
According to the characteristic, lead paste softening values of batteries with normal performance in different life cycles are simulated, and a 0-time test value 65HA is set as a reference value. The softening rate of each stage = (reference value-test value of this stage)/reference value × 100%. As in the following table:
example one
(1) Dissecting the 20Ah battery which is charged and discharged circularly for 300 times, and taking out the positive plate 1 to be detected;
(2) soaking in pure water for 30min, and taking out to air dry excessive water on the surface;
(3) the softening rate was tested at 68.2%.
Example two
(1) Dissecting 265 times of circularly charged and discharged 100Ah batteries, and taking out the positive plate 1 to be detected;
(2) soaking in pure water for 30min, and taking out to air dry excessive water on the surface;
(3) the softening rate was tested at 71.8%.
EXAMPLE III
(1) Dissecting a 45Ah new battery which is not charged and discharged circularly, and taking out the positive plate 1 to be detected;
(2) soaking in pure water for 30min, and taking out to air dry excessive water on the surface;
(3) the softening rate was measured to be 0.2%.
Compared with the calculation results of the first embodiment, the second embodiment and the third embodiment, the softening rate of the 45Ah battery without cyclic charge and discharge is almost 0, and the softening to normal life cycle ratio of the 20Ah battery with cyclic charge and discharge for 300 times and the 100Ah battery with cyclic charge and discharge for 265 times is obviously increased, which indicates that the quality of the battery plate is not ideal, and further process adjustment and process control are needed to ensure the stability of the product quality.
The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. The storage battery positive plate lead paste softening detection device is characterized by comprising a support (2) and a detection mechanism, wherein the support (2) is provided with a detection platform (21), and a to-be-detected positive plate (1) is arranged on the detection platform (21);
in the detection mechanism, a detector (4) is installed at the bottom end of a top rod (42), the top rod (42) is installed on a cross beam (44) through a return spring (43), a pressure rod (42) is rotatably connected to the cross beam (44), the pressure rod (42) is located on the top end of the top rod (41), and a contact of the detector (4) is located above the positive plate to be detected (1);
the softening degree of the lead paste of the positive plate of the storage battery is detected by the following method by using the device:
immersing the positive plate (1) to be detected into pure water for 25-30 min, taking out and airing excessive moisture on the surface, and placing the positive plate at a proper position on the detection platform (21); pressing down the pressure lever (42) until a contact of the detector (4) contacts the surface of the positive plate (1) to be detected, and recording a numerical value; measuring a plurality of points and taking an average value; the larger the numerical value, the harder the surface of the lead paste, the smaller the softening and falling degree of the lead paste on the surface of the positive electrode plate (1) to be tested, and the smaller the numerical value, the softer the surface of the lead paste, the larger the softening and falling degree of the lead paste on the surface of the positive electrode plate (1) to be tested.
2. The storage battery positive plate lead paste softening detection device according to claim 1, further comprising a sliding block (3) and a sliding block translation mechanism for translating the sliding block (3), wherein the sliding block (3) is positioned on the detection platform (21), one end of the sliding block (3) is connected with the sliding block translation mechanism, and the positive plate (1) to be detected is positioned on the sliding block (3).
3. The storage battery positive plate lead paste softening detection device according to claim 2, wherein the sliding block translation mechanism comprises a lead screw (22), a rocker (23) and a sliding rail (24), the sliding rail (24) is fixed on the detection platform (21), the sliding block (3) is connected with the sliding rail (24) in a sliding manner, one end of the lead screw (22) is rotatably connected with the sliding block, the middle part of the lead screw is connected with a through screw hole (25) in the side wall of the support (2) in a threaded manner, and the other end of the lead screw penetrates through the through screw hole (25) and then is fixedly connected with the rocker (23).
4. The device for detecting softening of lead paste of the positive plate of the storage battery according to any one of claims 1 to 3, further comprising a guide rod (45) perpendicular to the cross beam (44), wherein the cross beam (44) is mounted on the guide rod (45) through an adjusting sleeve (47), and the adjusting sleeve (47) is sleeved on the outer wall of the guide rod (45) and locked on the guide rod (45) through an adjusting bolt (46).
5. The device for detecting softening of lead paste on positive plate of storage battery according to any one of claims 1 to 3, wherein the top end of the top rod (41) is in a triangular cone structure.
6. The device for detecting softening of lead paste on positive plate of storage battery according to any one of claims 1 to 3, wherein the detector (4) is a rubber hardness tester LX-A.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110594659.4A CN113376041A (en) | 2021-05-28 | 2021-05-28 | Storage battery positive plate lead paste softening detection device |
| PCT/CN2021/139523 WO2022247249A1 (en) | 2021-05-28 | 2021-12-20 | Detection device for softening of lead plaster on positive plate of storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110594659.4A CN113376041A (en) | 2021-05-28 | 2021-05-28 | Storage battery positive plate lead paste softening detection device |
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| Publication Number | Publication Date |
|---|---|
| CN113376041A true CN113376041A (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110594659.4A Pending CN113376041A (en) | 2021-05-28 | 2021-05-28 | Storage battery positive plate lead paste softening detection device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113376041A (en) |
| WO (1) | WO2022247249A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022247249A1 (en) * | 2021-05-28 | 2022-12-01 | 浙江天能电池(江苏)有限公司 | Detection device for softening of lead plaster on positive plate of storage battery |
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| CN113376041A (en) * | 2021-05-28 | 2021-09-10 | 浙江天能电池(江苏)有限公司 | Storage battery positive plate lead paste softening detection device |
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2021
- 2021-05-28 CN CN202110594659.4A patent/CN113376041A/en active Pending
- 2021-12-20 WO PCT/CN2021/139523 patent/WO2022247249A1/en active Application Filing
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| GB627529A (en) * | 1946-01-15 | 1949-08-10 | Spojene Ocelarny | A device for accurately determining the hardness of very hard materials |
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| Publication number | Publication date |
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| WO2022247249A1 (en) | 2022-12-01 |
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Application publication date: 20210910 |