CN104241702B - A kind of curing improving cycle life of lead-acid accumulator - Google Patents
A kind of curing improving cycle life of lead-acid accumulator Download PDFInfo
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- CN104241702B CN104241702B CN201410306341.1A CN201410306341A CN104241702B CN 104241702 B CN104241702 B CN 104241702B CN 201410306341 A CN201410306341 A CN 201410306341A CN 104241702 B CN104241702 B CN 104241702B
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/14—Electrodes for lead-acid accumulators
- H01M4/16—Processes of manufacture
- H01M4/20—Processes of manufacture of pasted electrodes
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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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of curing improving cycle life of lead-acid accumulator, the curing solving prior art easily causes adhesion between grid and lead plaster poor, poor plate strength, easy to crack, cause cycle performance of battery poor, the problem that useful life is short, the present invention carries out the high moisturecuring of middle temperature to pole plate, high temperature and heavy wet solidification, four stage solidification of moisturecuring in the high moisturecuring of middle temperature and middle temperature, before the solidification process conversion in each stage, all increase a buffering adjusting stage to temperature or humidity, by the curing temperature to each cure stage, humidity and Timing, and the time controling to each buffering adjusting stage, whole curing process is stablized controlled, the plate strength obtained is high, surface not easily cracks, greatly can improve cycle performance and the useful life of battery.
Description
Technical field
The present invention relates to lead acid accumulator preparing technical field, especially relate to a kind of curing improving cycle life of lead-acid accumulator.
Background technology
In the manufacturing process of lead acid accumulator battery, be the curing process of pole plate to the operation had the greatest impact useful life, fill through lead plaster by grid, deliver to curing room after accelerated surface drying and be cured.Curing process is the critical process in lead-acid storage battery production process, and the curing of pole plate directly affects the quality of pole plate and then affects the useful life of battery.
Chinese invention patent 201010181739.9 discloses a kind of communication valve controlled sealed lead-acid accumulator positive electrode active materials and preparation and curing, it is characterized in that at 50 ~ 60 DEG C of temperature, after coated plate, divided by positive electrode active materials a three phases to be cured, first stage: temperature 74 ~ 82 DEG C, humidity 95 ~ 100%, curing time: 8 ~ 10h; Second stage: temperature 64 ~ 70 DEG C, humidity 75 ~ 85%, curing time: 18 ~ 25h; Phase III: temperature 55 ~ 60 DEG C, humidity 60 ~ 70%, curing time: 10 ~ 12h.This curing process from 50 ~ 60 DEG C of the charging stage to solidification first stage temperature gap more than 20 DEG C, in solidification process between each cure stage temperature difference more than 10 DEG C, the difference of humidity is 15 ~ 20%.Its weak point is, it adopts three stage curing process, and is the conversion of great-jump-forward between each cure stage temperature and humidity, amplitude of variation, greatly.Because grid material is lead-containing alloy, its heat conductivility is far superior to lead plaster, therefore in the great-jump-forward transfer process of cure stage, grid temperature rises very fast, and lead plaster temperature rises slower, make to there is higher temperature difference between grid and lead plaster temperature, particularly turn hot setting phase temperature difference more obvious, cause accelerating with the lead plaster rate-of-loss of coolant of grid rib joint, to cause after polar plate solidification adhesion between grid and lead plaster poor, affect the intensity of pole plate, and the interface resistance of grid rib and active material joint increases, the useful life of battery is terminated in advance, simultaneously, the great-jump-forward conversion of humidity can cause rising suddenly or the decline of moisture content in lead plaster in the curing process, polar board surface is made to produce through wall flaw, cause solidification effect difference and affect useful life of battery.
Summary of the invention
The present invention is that the curing in order to solve prior art easily causes adhesion between grid and lead plaster poor, poor plate strength, easy to crack, cause cycle performance of battery poor, the problem that useful life is short, provide a kind of processing step simple, workable, can plate strength be improved, prevent pole plate from ftractureing, optimize the curing of the raising cycle life of lead-acid accumulator of battery initial capacity.
To achieve these goals, the present invention is by the following technical solutions:
Improve a curing for cycle life of lead-acid accumulator, comprise the following steps:
(1) positive plate scribbling lead plaster is sent into curing room, control curing room temperature and rise to 40 ~ 50 DEG C from room temperature in 2 ~ 4h, humid control is 100%.This step is buffer stage, grid temperature can be avoided to raise too fast and cause the lead plaster rate-of-loss of coolant contacted with grid rib too fast, make to form good corrosion layer between grid rib and lead plaster, improve the intensity changing into rear pole plate and the softening and shedding avoiding positive plate during battery.
(2) control curing room temperature and maintain 40 ~ 50 DEG C, humidity maintains 100%, aligns polar plate solidification 4 ~ 10h under this condition.This stage is the first cured stage (middle temperature high humidity cure stage) of pole plate, and Main Function is the exchange of moisture content and moisture content in curing room in balance and stable pole plate lead plaster, for subsequent cure provides the condition of necessity.
(3) control curing room temperature in 6 ~ 8h, rise to 70 ~ 80 DEG C, humidity maintains 100%.This step is buffer stage, grid temperature can be avoided to raise too fast and cause the lead plaster rate-of-loss of coolant contacted with grid rib too fast, make to form good corrosion layer between grid rib and lead plaster, improve the intensity changing into rear pole plate and the softening and shedding avoiding positive plate during battery.
(4) control curing room temperature and maintain 70 ~ 80 DEG C, humidity maintains 100%, aligns polar plate solidification 4 ~ 8h under this condition.This stage (high temperature and heavy wet solidification stage) makes lead plaster generate four basic lead sulphates of a fixed structure and quantity under hot and humid environment, thus form the skeleton of positive plate active material configuration, enhance the glue chain intensity between lead plaster, make to form good corrosion layer between lead plaster and grid rib simultaneously, improve the intensity changing into rear pole plate and the softening and shedding avoiding positive plate during battery.
(5) control curing room temperature in 2 ~ 6h, drop to 40 ~ 50 DEG C, humidity maintains 100%.This stage is buffer stage, controls the fall off rate of curing room temperature, more consistent to ensure the temperature between lead plaster and grid, avoids polar board surface to produce through wall flaw.
(6) control curing room temperature and maintain 40 ~ 50 DEG C, humidity maintains 100%, aligns polar plate solidification 6 ~ 12h under this condition.This stage (middle temperature high humidity cure stage) object is stable and the lead plaster of balance after hot setting, avoids crossing of four basic lead sulphates and generates, ensure that the initial capacity of battery.
(7) control curing room temperature and maintain 40 ~ 50 DEG C, humidity drops to 70 ~ 80% by 100% in 2 ~ 4h.This step, by controlling the slow decline of humidity during polar plate solidification, avoids the poly-of moisture content in setting up period lead plaster so to decline, and makes physics and chemical reaction in lead plaster more abundant, avoids polar board surface to crack, improve plate strength.
(8) control curing room temperature and maintain 40 ~ 50 DEG C, humidity maintains 70 ~ 80%, aligns polar plate solidification 4 ~ 10h under this condition.The Main Function in this stage (in middle temperature moisturecuring stage) is by reducing solidification humidity, promotes the oxidation of free lead in lead plaster further, and impels the combination between lead plaster and grid more firm.
As preferably, in step (1), control curing room temperature and rise to 40 ~ 50 DEG C from room temperature in 2 ~ 2.5h.
As preferably, in step (3), control curing room temperature in 6 ~ 6.5h, rise to 70 ~ 80 DEG C.
As preferably, in step (5), control curing room temperature in 2 ~ 4h, drop to 40 ~ 50 DEG C.
As preferably, in step (7), controlled humidity drops to 70 ~ 80% by 100% in 3.5 ~ 4h.
Therefore, the invention has the beneficial effects as follows: four stage solidification wet in the high moisturecuring of middle temperature, high temperature and heavy wet solidification, the high moisturecuring of middle temperature and middle temperature are carried out to pole plate, before the solidification process conversion in each stage, all increase a buffering adjusting stage to temperature or humidity, by the curing temperature to each cure stage, humidity and Timing, and the time controling to each buffering adjusting stage, whole curing process is stablized controlled, the plate strength obtained is high, surface not easily cracks, and greatly can improve cycle performance and the useful life of battery.
Embodiment
Below by embodiment, the present invention will be further described.
Embodiment 1
Improve a curing for cycle life of lead-acid accumulator, comprise the following steps:
(1) positive plate scribbling lead plaster is sent into curing room, control curing room temperature and rise to 40 DEG C from room temperature in 2h, humid control is 100%.
(2) control curing room temperature and maintain 40 DEG C, humidity maintains 100%, aligns polar plate solidification 4 ~ 10h under this condition.
(3) control curing room temperature in 6h, rise to 70 DEG C, humidity maintains 100%.
(4) control curing room temperature and maintain 70 DEG C, humidity maintains 100%, aligns polar plate solidification 4h under this condition.
(5) control curing room temperature in 2h, drop to 40 DEG C, humidity maintains 100%.
(6) control curing room temperature and maintain 40 DEG C, humidity maintains 100%, aligns polar plate solidification 6h under this condition.
(7) control curing room temperature and maintain 40 DEG C, humidity drops to 70% by 100% in 2h.
(8) control curing room temperature and maintain 40 DEG C, humidity maintains 70%, aligns polar plate solidification 4h under this condition.
Embodiment 2
Improve a curing for cycle life of lead-acid accumulator, comprise the following steps:
(1) positive plate scribbling lead plaster is sent into curing room, control curing room temperature and rise to 45 DEG C from room temperature in 2.5h, humid control is 100%.
(2) control curing room temperature and maintain 45 DEG C, humidity maintains 100%, aligns polar plate solidification 5h under this condition.
(3) control curing room temperature in 6.5h, rise to 75 DEG C, humidity maintains 100%.
(4) control curing room temperature and maintain 75 DEG C, humidity maintains 100%, aligns polar plate solidification 6h under this condition.
(5) control curing room temperature in 4h, drop to 45 DEG C, humidity maintains 100%.
(6) control curing room temperature and maintain 45 DEG C, humidity maintains 100%, aligns polar plate solidification 8h under this condition.
(7) control curing room temperature and maintain 45 DEG C, humidity drops to 75% by 100% in 3.5h.
(8) control curing room temperature and maintain 45 DEG C, humidity maintains 75%, aligns polar plate solidification 5h under this condition.
Embodiment 3
Improve a curing for cycle life of lead-acid accumulator, comprise the following steps:
(1) positive plate scribbling lead plaster is sent into curing room, control curing room temperature and rise to 50 DEG C from room temperature in 4h, humid control is 100%.
(2) control curing room temperature and maintain 50 DEG C, humidity maintains 100%, aligns polar plate solidification 4 ~ 10h under this condition.
(3) control curing room temperature in 8h, rise to 80 DEG C, humidity maintains 100%.
(4) control curing room temperature and maintain 80 DEG C, humidity maintains 100%, aligns polar plate solidification 8h under this condition.
(5) control curing room temperature in 6h, drop to 50 DEG C, humidity maintains 100%.
(6) control curing room temperature and maintain 50 DEG C, humidity maintains 100%, aligns polar plate solidification 12h under this condition.
(7) control curing room temperature and maintain 50 DEG C, humidity drops to 80% by 100% in 4h.
(8) control curing room temperature and maintain 50 DEG C, humidity maintains 80%, aligns polar plate solidification 10h under this condition.
Pole plate lead plaster free lead content≤2% after being solidified by the present invention, falls cream≤0.5%, and plate strength is good, surperficial without shedding phenomenon, and through the test of 100%DOD cycle life, battery cycle life improves more than 15%, and the cycle performance of battery promotes obviously.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (5)
1. improve a curing for cycle life of lead-acid accumulator, it is characterized in that, comprise the following steps:
(1) positive plate scribbling lead plaster is sent into curing room, control curing room temperature and rise to 40 ~ 50 DEG C at 2 ~ 4h from room temperature, humid control is 100%;
(2) control curing room temperature and maintain 40 ~ 50 DEG C, humidity maintains 100%, aligns polar plate solidification 4 ~ 10h under this condition;
(3) control curing room temperature and rise to 70 ~ 80 DEG C at 6 ~ 8h, humidity maintains 100%;
(4) control curing room temperature and maintain 70 ~ 80 DEG C, humidity maintains 100%, aligns polar plate solidification 4 ~ 8h under this condition;
(5) control curing room temperature and drop to 40 ~ 50 DEG C at 2 ~ 6h, humidity maintains 100%;
(6) control curing room temperature and maintain 40 ~ 50 DEG C, humidity maintains 100%, aligns polar plate solidification 6 ~ 12h under this condition;
(7) control curing room temperature and maintain 40 ~ 50 DEG C, humidity drops to 70 ~ 80% at 2 ~ 4h by 100%;
(8) control curing room temperature and maintain 40 ~ 50 DEG C, humidity maintains 70 ~ 80%, aligns polar plate solidification 4 ~ 10h under this condition.
2. curing according to claim 1, is characterized in that, in step (1), controls curing room temperature and rises to 40 ~ 50 DEG C at 2 ~ 2.5h from room temperature.
3. curing according to claim 1, is characterized in that, in step (3), controls curing room temperature and rises to 70 ~ 80 DEG C at 6 ~ 6.5h.
4. curing according to claim 1, is characterized in that, in step (5), controls curing room temperature and drops to 40 ~ 50 DEG C at 2 ~ 4h.
5. curing according to claim 1, is characterized in that, in step (7), controlled humidity drops to 70 ~ 80% at 3.5 ~ 4h by 100%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410306341.1A CN104241702B (en) | 2014-07-01 | 2014-07-01 | A kind of curing improving cycle life of lead-acid accumulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410306341.1A CN104241702B (en) | 2014-07-01 | 2014-07-01 | A kind of curing improving cycle life of lead-acid accumulator |
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| CN104241702A CN104241702A (en) | 2014-12-24 |
| CN104241702B true CN104241702B (en) | 2016-04-27 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322141B (en) * | 2015-02-12 | 2018-02-23 | 济源市万洋绿色能源有限公司 | A kind of accumulator anode board curing process |
| CN105680004B (en) * | 2016-01-29 | 2018-06-29 | 超威电源有限公司 | A kind of high temperature curing process of long-life type positive electrode plate of lead-acid battery |
| CN106058162B (en) * | 2016-08-23 | 2018-05-11 | 安徽永恒动力科技有限公司 | A kind of method of energy battery positive plate rapid curing drying |
| CN109873124A (en) * | 2019-01-31 | 2019-06-11 | 安徽超威电源有限公司 | A kind of power lead-acid storage battery high temperature curing process |
| CN109742330B (en) * | 2019-01-31 | 2021-09-10 | 安徽超威电源有限公司 | Two-day high-temperature curing process for power lead-acid storage battery |
| CN110190204A (en) * | 2019-05-15 | 2019-08-30 | 佛山赛能新能源有限公司 | A kind of production method of hot-resistant valve control lead-acid battery and its positive plate |
| CN110396585A (en) * | 2019-08-26 | 2019-11-01 | 浙江天能电池江苏新能源有限公司 | Battery grid aging technique |
| CN112687849A (en) * | 2020-12-28 | 2021-04-20 | 重庆万里新能源股份有限公司 | Efficient curing process for polar plate |
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| CN102610800A (en) * | 2012-03-30 | 2012-07-25 | 山东瑞宇蓄电池有限公司 | Method for solidifying lead-acid battery plate |
| CN103400966A (en) * | 2013-07-09 | 2013-11-20 | 超威电源有限公司 | Curing process for pole plate of lead-acid storage battery |
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- 2014-07-01 CN CN201410306341.1A patent/CN104241702B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610800A (en) * | 2012-03-30 | 2012-07-25 | 山东瑞宇蓄电池有限公司 | Method for solidifying lead-acid battery plate |
| CN103400966A (en) * | 2013-07-09 | 2013-11-20 | 超威电源有限公司 | Curing process for pole plate of lead-acid storage battery |
Non-Patent Citations (1)
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| 极板固化工艺与控制;王有山 等;《蓄电池》;20081231;第107-110页 * |
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Address after: 313100 Zhejiang city of Huzhou province Changxing County pheasant emerging urban industrial park Patentee after: Chaowei Power Group Co.,Ltd. Address before: 313100 Zhejiang city of Huzhou province Changxing County pheasant emerging urban industrial park Patentee before: CHILWEE POWER Co.,Ltd. |
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Effective date of registration: 20191219 Address after: 246000 Huaining County Industrial Park, Anhui, Anqing Patentee after: ANHUI YONGHENG POWER CELL Co.,Ltd. Address before: 313100 Zhejiang city of Huzhou province Changxing County pheasant emerging urban industrial park Patentee before: Chaowei Power Group Co.,Ltd. |