CN112349976A - Method and process for improving low-temperature starting performance of start-stop battery - Google Patents
Method and process for improving low-temperature starting performance of start-stop battery Download PDFInfo
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- CN112349976A CN112349976A CN202011053334.7A CN202011053334A CN112349976A CN 112349976 A CN112349976 A CN 112349976A CN 202011053334 A CN202011053334 A CN 202011053334A CN 112349976 A CN112349976 A CN 112349976A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
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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
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
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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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- 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
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Abstract
The invention relates to the field of lead-acid storage batteries, in particular to a method and a process for improving low-temperature starting performance of a start-stop battery. The negative lead plaster comprises the following components in percentage by mass: 10.5 to 11.5 percent of deionized water, 4.0 to 6.0 percent of sulfuric acid, 0.05 to 0.1 percent of short fiber, 0.2 to 0.4 percent of lignin, 0.1 to 0.4 percent of carbon black, 0.5 to 1.5 percent of barium sulfate and the balance of lead powder; electrolyte additives are added into the electrolyte, and the electrolyte additives are 10-30g/L of anion exchange resin and 10-30g/L of cation exchange resin. After the acid content of the negative electrode lead paste is increased, and the anion-cation exchange resin is added into the electrolyte, the discharge capacity and the static charge acceptance of the battery are not different, the low-temperature starting performance at-18 ℃ is obviously improved, after 3 times of low-temperature starting circulation, the 10s and 20s discharge voltage platforms are not obviously attenuated, and the attenuation of the discharge duration is obviously slowed down.
Description
Technical Field
The invention relates to the field of lead-acid storage batteries, in particular to a method and a process for improving low-temperature starting performance of a start-stop battery.
Background
With the increasing stricter environmental protection policies, the automobiles are gradually assembled with start-stop systems, the storage batteries can be frequently discharged by large current, the common lead-acid storage batteries cannot meet the requirements, and the start-stop storage batteries are applied. However, in consideration of the fact that the high-current discharge capacity of start-stop batteries is weakened in winter or in northern severe cold areas, people are actively searching for new formulations which can adapt to severe cold winter.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a method for improving the low-temperature starting performance of a start-stop battery. The technical scheme for realizing the purpose of the invention is as follows:
the negative lead plaster comprises the following components in percentage by mass: 10.5 to 11.5 percent of deionized water, 4.0 to 6.0 percent of sulfuric acid, 0.05 to 0.1 percent of short fiber, 0.2 to 0.4 percent of lignin, 0.1 to 0.4 percent of carbon black, 0.5 to 1.5 percent of barium sulfate and the balance of lead powder;
electrolyte additives are added into the electrolyte, and the electrolyte additives are 10-30g/L of anion exchange resin and 10-30g/L of cation exchange resin.
Furthermore, the electrolyte additive is 18g/L of anion exchange resin and 18g/L of cation exchange resin.
Furthermore, the apparent density of the negative pole lead paste is 4.10-4.20g/cm3。
Further, the sulfuric acid density of the electrolyte is 1.20g/cm3-1.28g/cm3。
A process for improving low-temperature starting performance of a start-stop battery comprises the following specific steps:
step 1: and (3) carrying out paste mixing on a formula to be verified, wherein the formula of the negative lead paste comprises the following components in percentage by mass: 10.5 to 11.5 percent of deionized water, 4.0 to 6.0 percent of sulfuric acid, 0.05 to 0.1 percent of short fiber, 0.2 to 0.4 percent of lignin, 0.1 to 0.4 percent of carbon black, 0.5 to 1.5 percent of barium sulfate and the balance of lead powder; preparing lead plaster formula materials according to a proportion, putting the lead plaster formula materials into a paste mixing machine for dry mixing for 4min, uniformly mixing, adding deionized water for mixing for 8min, finally slowly adding sulfuric acid, and mixing for at least 20 min; after the visual specific gravity of the lead plaster meets the requirement, entering a smearing procedure;
step 2: coating the negative lead plaster prepared in the step 1 on a negative grid in an equivalent manner, and coating the positive lead plaster for production on a positive grid in an equivalent manner, wherein the size of the positive plate is 146mm x 130mm x 1.0mm, and the size of the negative plate is 146mm x 131mm x 0.8 mm;
and step 3: respectively curing and drying the positive plate and the negative plate, and normally assembling 4 batteries of 70Ah batteries on a production line;
and 4, step 4: adding 18g/L of cation and anion exchange resin into the electrolyte respectively, carrying out online formation, and adopting a production formation process;
and 5: carrying out capacity and low-temperature (-18 ℃) starting capability test and static charging acceptance capability test on the formed battery;
step 6: the battery of each scheme was subjected to 3 capacity, 3 low temperature (-18 ℃) start-up capability tests and one static charge acceptance test, respectively.
After the technical scheme is adopted, the invention has the following positive effects:
(1) after the acid content of the negative electrode lead paste is increased, and the anion-cation exchange resin is added into the electrolyte, the discharge capacity and the static charge acceptance of the battery are not different, the low-temperature starting performance at-18 ℃ is obviously improved, after 3 times of low-temperature starting circulation, the 10s and 20s discharge voltage platforms are not obviously attenuated, and the attenuation of the discharge duration is obviously slowed down.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which
Fig. 1 is a graph of low temperature discharge.
Detailed Description
(example 1)
The formula of the negative lead plaster comprises the following components in percentage by mass: 11.2% of deionized water, 5% of sulfuric acid, 0.05% of short fibers, 0.3% of carbon black, 1.0% of barium sulfate, 0.4% of lignin and the balance of lead powder, wherein the electrolyte is added with 18g/L of cation and anion exchange resin (calculated according to the volume of sulfuric acid).
(example 2)
The formula of the negative lead plaster comprises the following components in percentage by mass: 11.0% of deionized water, 3% of sulfuric acid, 0.05% of short fibers, 0.3% of carbon black, 1.0% of barium sulfate, 0.4% of lignin and the balance of lead powder, wherein the electrolyte is a production electrolyte.
Embodiment 1-2 a process for improving low temperature start-up performance of start-stop batteries, comprising the steps of:
step 1: preparing the lead plaster formula materials according to the proportion, putting the materials into a paste mixer for dry mixing for 4min, uniformly mixing, adding deionized water, mixing for 8min, finally slowly adding sulfuric acid, and mixing for at least 20 min. After the visual specific gravity of the lead plaster meets the requirement, entering a smearing procedure;
step 2: coating the negative lead plaster prepared in the step 1 on a negative grid in an equivalent manner, and coating the positive lead plaster for production on a positive grid in an equivalent manner, wherein the size of the negative plate is 146mm x 131mm x 0.8mm, and the size of the negative plate is 146mm x 130mm x 1 mm;
and step 3: respectively curing and drying the positive plate and the negative plate, assembling the plate group into 70Ah batteries by adopting a 7-positive-8-negative structure on a production line, and making 4 batteries for each formula;
and 4, step 4: according to the embodiment 1, 18g/L of cation and anion exchange resin is added into the electrolyte, and the acid adding amount and the formation process adopt the production field process;
and 5: according to the embodiment 2, the electrolyte adopts a production formula, and the acid adding amount and the formation process both adopt field processes.
And 4, step 4: carrying out capacity C on the qualified battery20Detection, low-temperature performance test at-18 ℃ and static charging acceptance test.
Capacity C was determined by using the formulation of examples 1-220Detection, -18 ℃ low temperature performance test and static charging acceptance, and the test data are as follows:
from the test results, after the acid content of the negative lead paste is increased and the anion-cation exchange resin is added into the electrolyte, the discharge capacity and the static charge acceptance of the battery are not different, the low-temperature starting performance at-18 ℃ is obviously improved, after 3 times of low-temperature starting circulation, the 10s and 20s discharge voltage platforms are not obviously attenuated, the attenuation of the discharge time is obviously slowed down, and the formula performance of the embodiment 1 is obviously superior.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A method for improving low-temperature starting performance of a start-stop battery is characterized in that:
the negative lead plaster comprises the following components in percentage by mass: 10.5 to 11.5 percent of deionized water, 4.0 to 6.0 percent of sulfuric acid, 0.05 to 0.1 percent of short fiber, 0.2 to 0.4 percent of lignin, 0.1 to 0.4 percent of carbon black, 0.5 to 1.5 percent of barium sulfate and the balance of lead powder;
electrolyte additives are added into the electrolyte, and the electrolyte additives are 10-30g/L of anion exchange resin and 10-30g/L of cation exchange resin.
2. The method of claim 1 for improving low temperature start-up performance of start-stop batteries, wherein: the electrolyte additive is 18g/L of anion exchange resin and 18g/L of cation exchange resin.
3. The method of claim 1 for improving low temperature start-up performance of start-stop batteries, wherein: the apparent density of the negative pole lead paste is 4.10-4.20g/cm3。
4. The method of claim 1 for improving low temperature start-up performance of start-stop batteries, wherein: the sulfuric acid density of the electrolyte is 1.20g/cm3-1.28g/cm3。
5. A process for improving low-temperature starting performance of a start-stop battery comprises the following specific steps:
step 1: and (3) carrying out paste mixing on a formula to be verified, wherein the formula of the negative lead paste comprises the following components in percentage by mass: 10.5 to 11.5 percent of deionized water, 4.0 to 6.0 percent of sulfuric acid, 0.05 to 0.1 percent of short fiber, 0.2 to 0.4 percent of lignin, 0.1 to 0.4 percent of carbon black, 0.5 to 1.5 percent of barium sulfate and the balance of lead powder; preparing lead plaster formula materials according to a proportion, putting the lead plaster formula materials into a paste mixing machine for dry mixing for 4min, uniformly mixing, adding deionized water for mixing for 8min, finally slowly adding sulfuric acid, and mixing for at least 20 min; after the visual specific gravity of the lead plaster meets the requirement, entering a smearing procedure;
step 2: coating the negative lead plaster prepared in the step 1 on a negative grid in an equivalent manner, and coating the positive lead plaster for production on a positive grid in an equivalent manner, wherein the size of the positive plate is 146mm x 130mm x 1.0mm, and the size of the negative plate is 146mm x 131mm x 0.8 mm;
and step 3: respectively curing and drying the positive plate and the negative plate, and normally assembling 4 batteries of 70Ah batteries on a production line;
and 4, step 4: adding 18g/L of cation and anion exchange resin into the electrolyte respectively, carrying out online formation, and adopting a production formation process;
and 5: carrying out capacity and low-temperature (-18 ℃) starting capability test and static charging acceptance capability test on the formed battery;
step 6: the battery of each scheme was subjected to 3 capacity, 3 low temperature (-18 ℃) start-up capability tests and one static charge acceptance test, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011053334.7A CN112349976A (en) | 2020-09-29 | 2020-09-29 | Method and process for improving low-temperature starting performance of start-stop battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011053334.7A CN112349976A (en) | 2020-09-29 | 2020-09-29 | Method and process for improving low-temperature starting performance of start-stop battery |
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| CN112349976A true CN112349976A (en) | 2021-02-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050357A (en) * | 2021-11-15 | 2022-02-15 | 骆驼集团华中蓄电池有限公司 | Rich-solution parking air conditioner battery and working condition simulation cycle test method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165973A (en) * | 1981-04-06 | 1982-10-13 | Matsushita Electric Ind Co Ltd | Lead storage battery |
| JPS58184273A (en) * | 1982-04-19 | 1983-10-27 | Japan Storage Battery Co Ltd | Lead-acid battery |
| CN102170025A (en) * | 2011-03-22 | 2011-08-31 | 北京三昌宇恒科技发展有限公司 | Quantum lead-acid accumulator |
| JP2011249016A (en) * | 2010-05-21 | 2011-12-08 | Hitachi Maxell Energy Ltd | Nonaqueous electrolyte battery and nonaqueous electrolyte battery module |
| CN103035923A (en) * | 2012-12-18 | 2013-04-10 | 超威电源有限公司 | Low-temperature-resistant storage battery internally formed lead plaster |
| CN103280582A (en) * | 2013-05-03 | 2013-09-04 | 武汉长光电源有限公司 | Valve-controlled type lead-acid storage battery |
| CN104466272A (en) * | 2014-11-28 | 2015-03-25 | 长兴铁鹰电气有限公司 | Granular silicon dioxide electrolyte and storage battery |
| CN111525195A (en) * | 2019-02-01 | 2020-08-11 | 骆驼集团蓄电池研究院有限公司 | Maintenance-free lead-acid storage battery with excellent deep cycle life and production method thereof |
-
2020
- 2020-09-29 CN CN202011053334.7A patent/CN112349976A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57165973A (en) * | 1981-04-06 | 1982-10-13 | Matsushita Electric Ind Co Ltd | Lead storage battery |
| JPS58184273A (en) * | 1982-04-19 | 1983-10-27 | Japan Storage Battery Co Ltd | Lead-acid battery |
| JP2011249016A (en) * | 2010-05-21 | 2011-12-08 | Hitachi Maxell Energy Ltd | Nonaqueous electrolyte battery and nonaqueous electrolyte battery module |
| CN102170025A (en) * | 2011-03-22 | 2011-08-31 | 北京三昌宇恒科技发展有限公司 | Quantum lead-acid accumulator |
| CN103035923A (en) * | 2012-12-18 | 2013-04-10 | 超威电源有限公司 | Low-temperature-resistant storage battery internally formed lead plaster |
| CN103280582A (en) * | 2013-05-03 | 2013-09-04 | 武汉长光电源有限公司 | Valve-controlled type lead-acid storage battery |
| CN104466272A (en) * | 2014-11-28 | 2015-03-25 | 长兴铁鹰电气有限公司 | Granular silicon dioxide electrolyte and storage battery |
| CN111525195A (en) * | 2019-02-01 | 2020-08-11 | 骆驼集团蓄电池研究院有限公司 | Maintenance-free lead-acid storage battery with excellent deep cycle life and production method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050357A (en) * | 2021-11-15 | 2022-02-15 | 骆驼集团华中蓄电池有限公司 | Rich-solution parking air conditioner battery and working condition simulation cycle test method thereof |
| CN114050357B (en) * | 2021-11-15 | 2024-03-15 | 骆驼集团华中蓄电池有限公司 | Rich-liquid parking air conditioner battery and working condition simulation cycle test method thereof |
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Application publication date: 20210209 |