CN104466272A - Granular silicon dioxide electrolyte and storage battery - Google Patents
Granular silicon dioxide electrolyte and storage battery Download PDFInfo
- Publication number
- CN104466272A CN104466272A CN201410710587.5A CN201410710587A CN104466272A CN 104466272 A CN104466272 A CN 104466272A CN 201410710587 A CN201410710587 A CN 201410710587A CN 104466272 A CN104466272 A CN 104466272A
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- Prior art keywords
- percent
- electrolyte
- battery
- silicon dioxide
- storage battery
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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 invention relates to granular silicon dioxide electrolyte and a storage battery. The granular silicon dioxide electrolyte comprises the following raw materials by weight percent: 3.0 to 5.0 percent of SiO2, 1.2 to 1.8 percent of Na2SO4, 42 to 45 percent of H2SO4, 0.08 to 0.12 percent of SnSO4, 0.1 to 0.3 percent of fluorine-containing resin, 0.5 to 1.2 percent of methyl polyethylene glycol, 0.08 to 0.12 percent of carboxymethylcellulose and 46 to 53 percent of self-made pure water. Compared with the prior art, the electrolyte is formed by compounding SiO2 particles in different particle size ranges and a 1.35g/mL sulfuric acid aqueous solution, so that the thermal runaway phenomenon of the battery can be effectively prevented, and the capacity for absorbing foreign ions in the electrolyte is relatively good; current distribution on the surface of an electrode is uniform; by adopting a thin polar plate technology, the quantity of positive and negative polar plates is increased, the thickness of the negative polar plate on the outermost side is reduced, the utilization rate of battery active substances is increased, the tight assembling of the battery is realized, and the softening and dropping of positive polar plate active substances can be slowed down.
Description
Technical field
The present invention relates to battery electrolyte field, particularly a kind of granular pattern silica dielectric liquid and storage battery.
Background technology
The lead acid accumulator of present domestic production is mainly with plumbous aluminium, lead-antimony alloy is main material, what add in storage battery is the electrolyte that sulfuric acid configures, in the manufacture process of colloid storage battery, main with aerosil and sulfuric acid, sodium sulphate reacts, just have come to use after mix and blend, do not make silicon, water, the compounds such as acid merge completely, can only be more better than general plumbic acid to the cryogenic effect of battery, all can there are following defects in visible electromobile battery in the market: the temperature rise of (1) inside battery electrolyte is just relatively large, easily there is thermal runaway phenomenon in battery, (2) battery electrolyte skewness, causes CURRENT DISTRIBUTION uneven, affects battery, (3) cell active materials utilance is low, the easy softening and shedding of positive active material.
For solving the problem, the present invention proposes a kind ofly prevent thermal runaway phenomenon and make homogeneous current distribution and can improve granular pattern silica dielectric liquid and the storage battery of cell active materials utilance.
Summary of the invention
Instant invention overcomes above-mentioned the deficiencies in the prior art, propose and a kind ofly prevent thermal runaway phenomenon and make homogeneous current distribution and granular pattern silica dielectric liquid and the storage battery of cell active materials utilance can be improved.
Technical scheme of the present invention is achieved in that
A kind of granular pattern silica dielectric liquid, the constitutive material components by weight percentage of described electrolyte is:
Wherein said SiO
2particle comprise granularity be 5 ~ 20um 60%, 30% of 20 ~ 45um, 10% of 45 ~ 60um; The density of described aqueous sulfuric acid is 1.35g/ml.
A kind of storage battery, 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 a kind ofly prevents thermal runaway phenomenon and makes homogeneous current distribution and can improve granular pattern silica dielectric liquid and the storage battery of cell active materials utilance.Electrolyte of the present invention is SiO2 particle by adopting different grain size scope, 1.35g/mL aqueous sulfuric acid is composite forms, mix, the composite electrolyte thermal capacitance be made up of different-grain diameter SiO2 particle and sulfuric acid solution is large, can effectively suppress battery thermal runaway phenomenon, and can the ability of foreign ion in Electolyte-absorptive preferably, can self-discharge of battery be reduced, energy-efficient; Electrolyte of the present invention is evenly distributed, not easily layering, electrode surface homogeneous current distribution; Adopt thin plate techique, increase positive/negative plate quantity, and thinning ragged edge bears the thickness of plate, improves the utilance of cell active materials, achieves the tight assembling of battery simultaneously, effectively slow down the softening and shedding of positive plate active material.
Embodiment
The specific embodiment 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 is:
Wherein said SiO
2particle comprise granularity be 12um 60%, 30% of 30um, 10% of 50um; The density of described aqueous sulfuric acid is 1.35g/ml.
A kind of storage battery, 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 1.0I
2(A) current discharge 1.6h, then with constant voltage 16.00V (current limliting 0.4I
2(A)) charge 6.40h, and circulate after 350 times, accumulator voltage is 10.60V.
| Project | This case | Industry advanced level |
| Voltage | 13.42V～13.44V | 13.35V |
| 2 hour rate capacity (25 DEG C) | 14.8Ah | 14.5Ah |
| -15 DEG C of cryogenic property capacity | ≥79％ | 76％～78％ |
| Sealing reaction efficiency | 97％ | 96％ |
Claims (2)
1. a granular pattern silica dielectric liquid, is characterized in that the constitutive material components by weight percentage of described electrolyte is:
Wherein said SiO
2particle comprise granularity be 5 ~ 20um 60%, 30% of 20 ~ 45um, 10% of 45 ~ 60um; The density of described aqueous sulfuric acid is 1.35g/ml.
2. a kind of storage battery according to claim 1, is characterized in that: its electrolyte is granular pattern silica dielectric liquid according to 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 true CN104466272A (en) | 2015-03-25 |
| CN104466272B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106941195A (en) * | 2017-03-27 | 2017-07-11 | 浙江南都电源动力股份有限公司 | Saddle of lead-acid accumulator and preparation method thereof and lead-acid accumulator |
| 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 |
Citations (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 |
| JP2004207003A (en) * | 2002-12-25 | 2004-07-22 | Shin Kobe Electric Mach Co Ltd | Liquid type lead acid storage battery |
| CN1647294A (en) * | 2002-02-07 | 2005-07-27 | Kvg技术股份有限公司 | Lead acid battery with gelled electrolyte formed by filtration action of absorbent separators, electrolyte therefor, and absorbent separators therefor |
| 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 |
| CN103943887A (en) * | 2014-04-28 | 2014-07-23 | 江苏苏中电池科技发展有限公司 | Lead-calcium formation colloid electrolyte |
-
2014
- 2014-11-28 CN CN201410710587.5A patent/CN104466272B/en active Active
Patent Citations (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 |
| CN1647294A (en) * | 2002-02-07 | 2005-07-27 | Kvg技术股份有限公司 | Lead acid battery with gelled electrolyte formed by filtration action of absorbent separators, electrolyte therefor, and absorbent separators therefor |
| 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 |
| CN103943887A (en) * | 2014-04-28 | 2014-07-23 | 江苏苏中电池科技发展有限公司 | Lead-calcium formation colloid electrolyte |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106941195A (en) * | 2017-03-27 | 2017-07-11 | 浙江南都电源动力股份有限公司 | Saddle of lead-acid accumulator and preparation method thereof and lead-acid accumulator |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104466272B (en) | 2017-01-04 |
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| CB02 | Change of applicant information |
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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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |