CN104466272B - A kind of granular pattern silica dielectric liquid and accumulator - Google Patents
A kind of granular pattern silica dielectric liquid and accumulator Download PDFInfo
- Publication number
- CN104466272B CN104466272B CN201410710587.5A CN201410710587A CN104466272B CN 104466272 B CN104466272 B CN 104466272B CN 201410710587 A CN201410710587 A CN 201410710587A CN 104466272 B CN104466272 B CN 104466272B
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- Prior art keywords
- accumulator
- dielectric liquid
- granular pattern
- silica dielectric
- 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
- H01M10/08—Selection of materials as electrolytes
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of granular pattern silica dielectric liquid and accumulator, raw materials by weight proportioning: SiO23.0～5.0%；Na2SO41.2～1.8%；H2SO442～45%；SnSO40.08～0.12%；Fluorine resin 0.1～0.3%；Polyethylene Glycol methyl ester 0.5～1.2%；Carboxymethyl cellulose 0.08～0.12%；Self-control pure water 46～53%.Compared with prior art, electrolyte of the present invention uses the SiO2 granule of different grain size scope, 1.35g/mL aqueous sulfuric acid to compound, effectively suppression battery thermal runaway phenomenon, the ability of foreign ion in preferable Electolyte-absorptive；Electrode surface homogeneous current distribution；Use thin plate techique, increase positive/negative plate quantity, the thickness of thinning outermost side negative plate, improve the utilization rate of cell active materials, it is achieved being closely assembled of battery, slow down the softening of positive plate active substance and come off.
Description
Technical field
The present invention relates to battery electrolyte field, particularly to a kind of granular pattern silica dielectric liquid and accumulator.
Background technology
The lead-acid accumulator of now domestic production is mainly with lead aluminum, lead-antimony alloy as main material, and add in accumulator is
The electrolyte of sulphuric acid configuration, in the manufacture process of colloid storage battery, mainly anti-with aerosil and sulphuric acid, sodium sulfate
Should, only begin to employ after limit mix and blend, do not make the compounds such as silicon, water, acid merge completely, the low temperature of battery is imitated
Fruit can only be more better than general plumbic acid, it is seen that electromobile battery in the market all can exist following defects: (1) is electric
The temperature rise of pond electrolyte inside is the most relatively large, and thermal runaway phenomenon easily occurs in battery；(2) battery electrolyte skewness, leads
Send a telegraph flow distribution uneven, affect battery；(3) cell active materials utilization rate is low, and positive active material easily softens
Come off.
For solving the problems referred to above, the present invention proposes one and can prevent thermal runaway phenomenon and make homogeneous current distribution and can improve
The granular pattern silica dielectric liquid of cell active materials utilization rate and accumulator.
Summary of the invention
Instant invention overcomes above-mentioned the deficiencies in the prior art, it is proposed that one can prevent thermal runaway phenomenon and make electricity
Flow distribution uniformly and can improve granular pattern silica dielectric liquid and the accumulator of cell active materials utilization rate.
The technical scheme is that and be achieved in that:
A kind of granular pattern silica dielectric liquid, the constitutive material components by weight percentage of described electrolyte is:
The mass percent sum of all constitutive materials is 100%；Wherein said SiO2Particulate matter include granularity be 5～
The 10% of 30%, 45～60 μm of the 60% of 20 μm, 20～45 μm；The density of described aqueous sulfuric acid is 1.35g/ml.
A kind of accumulator, its electrolyte is above-mentioned granular pattern silica dielectric liquid.
Have employed the invention has the beneficial effects as follows of technique scheme:
The present invention is that one can prevent thermal runaway phenomenon and makes homogeneous current distribution and can improve cell active materials utilization
The granular pattern silica dielectric liquid of rate and accumulator.The electrolyte of the present invention is by using SiO2 of different grain size scope
Grain, 1.35g/mL aqueous sulfuric acid are compounding to be formed, and mix homogeneously, by different-grain diameter SiO2 particulate matter and answering that sulfuric acid solution is made
Close electrolyte thermal capacitance big, can effectively suppress battery thermal runaway phenomenon, and can the preferably ability of foreign ion in Electolyte-absorptive,
Self-discharge of battery can be reduced, energy-efficient；Electrolyte of the present invention is evenly distributed, and is difficult to layering, electrode surface homogeneous current distribution；
Use thin plate techique, increase positive/negative plate quantity, and the thickness of thinning outermost side negative plate, improve the profit of cell active materials
By rate, it is simultaneously achieved being closely assembled of battery, effectively slow down the softening of positive plate active substance and come off.
Detailed description of the invention
The detailed description of the invention of the present invention is as follows:
Embodiment: a kind of granular pattern silica dielectric liquid, the constitutive material components by weight percentage of described electrolyte
For:
Wherein said SiO2Particulate matter includes that granularity is the 60% of 12 μm, the 30% of 30 μm, the 10% of 50 μm；Described
The density of aqueous sulfuric acid is 1.35g/ml.
A kind of accumulator, its electrolyte is above-mentioned granular pattern silica dielectric liquid.
Experimental data:
Cycle life is tested: in the environment of 25 DEG C ± 2 DEG C, with 1.0I2(A) current discharge 1.6h, then with constant electricity
Pressure 16.00V (current limliting 0.4I2(A)) charging 6.40h, after circulating 350 times, accumulator voltage is 10.60V.
Claims (2)
1. a granular pattern silica dielectric liquid, it is characterised in that the constitutive material components by weight percentage of described electrolyte
For:
The mass percent sum of all constitutive materials is 100%；Wherein said SiO2Particulate matter includes that granularity is 5～20 μm
60%, 20～45 μm 30%, 45～60 μm 10%；The density of described aqueous sulfuric acid is 1.35g/ml.
2. an accumulator, it is characterised in that: its electrolyte is the granular pattern silica dielectric liquid described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710587.5A CN104466272B (en) | 2014-11-28 | 2014-11-28 | A kind of granular pattern silica dielectric liquid and accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710587.5A CN104466272B (en) | 2014-11-28 | 2014-11-28 | A kind of granular pattern silica dielectric liquid and accumulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104466272A CN104466272A (en) | 2015-03-25 |
| CN104466272B true CN104466272B (en) | 2017-01-04 |
Family
ID=52911937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410710587.5A Active CN104466272B (en) | 2014-11-28 | 2014-11-28 | A kind of granular pattern silica dielectric liquid and accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104466272B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106941195B (en) * | 2017-03-27 | 2020-06-23 | 浙江南都电源动力股份有限公司 | Saddle of lead-acid storage battery, preparation method of saddle and lead-acid storage battery |
| CN112349976A (en) * | 2020-09-29 | 2021-02-09 | 双登集团股份有限公司 | Method and process for improving low-temperature starting performance of start-stop battery |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5128218A (en) * | 1990-02-15 | 1992-07-07 | Japan Storage Battery Co., Ltd. | Sealed lead-acid battery |
| JP2005521991A (en) * | 2002-02-07 | 2005-07-21 | ケイヴィージー テクノロジーズ インコーポレイテッド | Lead acid battery having gelled electrolyte formed by filtration action of absorbent separator, electrolyte thereof, and absorbent separator |
| JP2004207003A (en) * | 2002-12-25 | 2004-07-22 | Shin Kobe Electric Mach Co Ltd | Liquid type lead acid storage battery |
| CN103000830A (en) * | 2011-09-12 | 2013-03-27 | 崔荣龙 | Exhaust type acid and flame resistant lead acid storage battery used for electric road vehicles |
| CN103943887B (en) * | 2014-04-28 | 2016-04-06 | 江苏苏中电池科技发展有限公司 | A kind of plumbous calcium is internalized into colloidal electrolyte |
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2014
- 2014-11-28 CN CN201410710587.5A patent/CN104466272B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104466272A (en) | 2015-03-25 |
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Address after: 313116 Zhejiang city of Huzhou province Changxing County small town Lang Shan Industrial Park Applicant after: Changxin Zhejiang Eagle Electric Co., Ltd. Address before: 313116 Zhejiang city of Huzhou province Changxing County small town Lang Shan Industrial Park Applicant before: CHANGXING TIEYING ELECTRIC CO., LTD. |
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