CN111381016A - Method for detecting cracking of lead-acid storage battery cell - Google Patents

Method for detecting cracking of lead-acid storage battery cell Download PDF

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Publication number
CN111381016A
CN111381016A CN202010161529.7A CN202010161529A CN111381016A CN 111381016 A CN111381016 A CN 111381016A CN 202010161529 A CN202010161529 A CN 202010161529A CN 111381016 A CN111381016 A CN 111381016A
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China
Prior art keywords
battery
cracking
storage battery
detecting
oil
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Pending
Application number
CN202010161529.7A
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Chinese (zh)
Inventor
李程昕
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Chaowei Power Group Co Ltd
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Chaowei Power Group Co Ltd
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Application filed by Chaowei Power Group Co Ltd filed Critical Chaowei Power Group Co Ltd
Priority to CN202010161529.7A priority Critical patent/CN111381016A/en
Publication of CN111381016A publication Critical patent/CN111381016A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/44Resins; Plastics; Rubber; Leather
    • G01N33/442Resins; Plastics

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention relates to the field of lead-acid storage batteries, in particular to a method for detecting cracking of a storage battery tank, which comprises the following steps of 1, coating sulfuric acid on the battery tank, and coating a first material after the sulfuric acid liquid is dried; step 2, standing the battery jar under certain pressure; and 3, judging whether the battery jar cracks. By adopting the method, the invention can effectively detect the cracking reason of the battery jar.

Description

Method for detecting cracking of lead-acid storage battery cell
Technical Field
The invention relates to a lead-acid storage battery.
Background
Lead-acid storage batteries for low-speed electric vehicles have been widely used, and the storage battery groove of the lead-acid storage battery is formed by modifying ABS materials and performing extrusion molding and injection molding. ABS is a terpolymer of acrylonitrile, butadiene and styrene, A represents acrylonitrile, B represents butadiene and S represents styrene. The plastic ABS is not influenced by water, inorganic salt, alkali and various acids, has better liquid resistance, such as lubricant, gasoline, engine oil, acid, alkali, organic solvent, brake oil and the like, and has excellent performance due to three compositions; acrylonitrile endows ABS resin with chemical stability, oil resistance, certain rigidity and hardness; the toughness, impact resistance and cold resistance of the butadiene are improved; styrene gives it good dielectric properties and good processability. In addition, the thermal deformation temperature of the ABS plastic is 93-118 ℃, and the temperature of the product can be increased by about 10 ℃ after annealing treatment. ABS still can show certain toughness at-40 ℃ and can be used within the temperature range of-40-100 ℃. Therefore, the lead-acid storage battery can is widely applied to raw materials of lead-acid storage battery cells for electric road vehicles. The cracking phenomenon of the storage battery groove in the use process troubles customers and storage battery manufacturers, and the method for detecting the cracking of the storage battery groove is very important in order to find out the reason of the cracking of the storage battery groove and avoid the occurrence of the same faults.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for detecting the cracking of a storage battery jar, which comprises the following steps of 1, coating sulfuric acid on the storage battery jar, and coating a first material after the sulfuric acid solution is dried; step 2, standing the battery jar under certain pressure; and 3, judging whether the battery jar cracks.
Further, the pressure of the battery jar in the step 2 is between 10 and 20 kpa.
Further, the standing time of the battery jar in the step 2 is 12 hours.
Further, the first material is a material contacted in the production process of the storage battery or a material contacted in the use process.
Further, the first material is one or a combination of more of rosin water, boiled oil water, brake oil, engine oil, gasoline and lubricating oil.
The method for detecting the cracking of the storage battery can effectively detect the cracking reason of the storage battery.
Detailed Description
The invention is further illustrated by the following specific examples.
The method for detecting the cracking of the storage battery jar comprises the following steps of 1, coating sulfuric acid on the battery jar, and coating a first material after the sulfuric acid solution is dried; step 2, standing the battery jar under certain pressure; and 3, judging whether the battery jar cracks.
Rosin water, boiled oil water and the like are commonly used in the production process of the storage battery, and lubricating oil, brake oil, gasoline, engine oil and the like may be encountered in the use process. In the test, rosin water, brake oil, engine oil, lubricating oil and gasoline are respectively coated on the end faces of 5 battery tanks, and the tank body does not crack after standing for 12 hours. In the production process, the assembly pressure of the battery is 10-20kpa, so that in the test, the pressure of the monomer tank of the battery tank is adjusted to 15kpa, rosin water, brake oil, engine oil, gasoline, lubricating oil and the like are respectively coated on the end face of the storage battery, and the storage battery tank does not crack after standing for 12 hours.
Because the lead-acid battery has sulfuric acid in the production process, the method for detecting the cracking of the storage battery tank comprises the following steps of 1, smearing the sulfuric acid with the density of 1.35g/cm3 on the end face of the first battery tank, and smearing rosin water after the sulfuric acid liquid is dried; step 2, standing the battery jar for 12 hours under the pressure of 15 kpa; and 3, judging that the tank body coated with the rosin water cracks.
And (3) replacing the rosin water in the step (1) with brake oil, repeating the steps, and cracking.
And (3) replacing the rosin water in the step (1) with engine oil, and repeating the steps without cracking.
And (3) replacing the rosin water in the step (1) with gasoline, and repeating the steps without cracking.
And (3) replacing the rosin water in the step (1) with lubricating oil, and repeating the steps without cracking.
And (3) replacing the rosin water in the step (1) with the rosin water and the brake oil, repeating the steps, and cracking.
And (3) replacing the rosin water in the step (1) with the rosin water and the engine oil, repeating the steps, and cracking.
And (3) changing the rosin water in the step (1) into the rosin water and the gasoline, repeating the steps, and cracking. And (3) replacing the rosin water in the step (1) with the rosin water and the lubricating oil, repeating the steps, and cracking.
The first material of the invention can be one or any combination of materials contacted in the production process of the storage battery or materials contacted in the use process.
The brake fluid is non-mineral oil system, and is prepared by blending alcohol ether type synthetic brake fluid which is based on polyglycol and mainly contains glycol and glycol derivatives, and then adding a lubricant, a diluent, an antirust agent, a rubber inhibitor and the like; the main components of the rosin water are amyl acetate and strong oxidant substances. The electrolyte belongs to organic solvents and battery tanks, residual sulfuric acid is on the surface of the battery tank on the premise of external stress, and when the battery tank meets the organic solvents, chemical reaction can be generated to generate acetic acid substances, so that the battery tank is cracked.

Claims (5)

1. A method for detecting the cracking of a storage battery jar comprises the following steps of 1, coating sulfuric acid on the battery jar, and coating a first material after the sulfuric acid liquid is dried; step 2, standing the battery jar under certain pressure; and 3, judging whether the battery jar cracks.
2. The method of detecting battery cell cracking according to claim 1, wherein the pressure of the battery cell in step 2 is between 10-20 kpa.
3. The method for detecting the cracking of a battery container according to claim 2, wherein the battery container is left for 12 hours in the step 2.
4. A method of detecting cracking of a battery cell according to any of claims 1-3, characterized in that the first material is the material which is in contact during the battery production process or the material which is in contact during use.
5. The method according to claim 4, wherein the first material is one or more of rosin water, boiled oil water, brake oil, engine oil, gasoline, and lubricating oil.
CN202010161529.7A 2020-03-10 2020-03-10 Method for detecting cracking of lead-acid storage battery cell Pending CN111381016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010161529.7A CN111381016A (en) 2020-03-10 2020-03-10 Method for detecting cracking of lead-acid storage battery cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010161529.7A CN111381016A (en) 2020-03-10 2020-03-10 Method for detecting cracking of lead-acid storage battery cell

Publications (1)

Publication Number Publication Date
CN111381016A true CN111381016A (en) 2020-07-07

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CN202010161529.7A Pending CN111381016A (en) 2020-03-10 2020-03-10 Method for detecting cracking of lead-acid storage battery cell

Country Status (1)

Country Link
CN (1) CN111381016A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104241610A (en) * 2014-07-31 2014-12-24 超威电源有限公司 Surface acidification method and device for lead-acid storage battery pole plates
CN105199303A (en) * 2015-09-16 2015-12-30 广东天保新材料有限责任公司 High-impact greasy-dirt-resistant modified regenerated ABS material and preparation method thereof
CN205067302U (en) * 2015-10-26 2016-03-02 超威电源有限公司 Lead acid battery ABS kerve device of nai corrosion detection
CN106198521A (en) * 2016-07-01 2016-12-07 天能电池集团有限公司 A kind of method detecting lead battery acid adding effect
CN208458901U (en) * 2018-07-18 2019-02-01 超威电源有限公司 A kind of battery case internal stress test device
CN110261777A (en) * 2019-07-09 2019-09-20 安徽新动新能源科技有限公司 A kind of test device in battery pack production process

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104241610A (en) * 2014-07-31 2014-12-24 超威电源有限公司 Surface acidification method and device for lead-acid storage battery pole plates
CN105199303A (en) * 2015-09-16 2015-12-30 广东天保新材料有限责任公司 High-impact greasy-dirt-resistant modified regenerated ABS material and preparation method thereof
CN205067302U (en) * 2015-10-26 2016-03-02 超威电源有限公司 Lead acid battery ABS kerve device of nai corrosion detection
CN106198521A (en) * 2016-07-01 2016-12-07 天能电池集团有限公司 A kind of method detecting lead battery acid adding effect
CN208458901U (en) * 2018-07-18 2019-02-01 超威电源有限公司 A kind of battery case internal stress test device
CN110261777A (en) * 2019-07-09 2019-09-20 安徽新动新能源科技有限公司 A kind of test device in battery pack production process

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
侯晓东等: "《汽车拖拉机用铅蓄电池》", 30 September 1976 *
杨清德: "铅酸蓄电池故障诊、修", 《家电检修技术》 *
王华: "VRLA电池槽性能的探讨", 《蓄电池》 *
藤本直生等: "摩托车用密封铅蓄电池GT4B―5的改进", 《蓄电池》 *
陶永亮: "铅酸蓄电池槽盖上铅套裂纹的分析与研究", 《蓄电池》 *

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Application publication date: 20200707

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