CN103972454A - High-efficiency gel battery separator - Google Patents
High-efficiency gel battery separator Download PDFInfo
- Publication number
- CN103972454A CN103972454A CN201410224845.9A CN201410224845A CN103972454A CN 103972454 A CN103972454 A CN 103972454A CN 201410224845 A CN201410224845 A CN 201410224845A CN 103972454 A CN103972454 A CN 103972454A
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- CN
- China
- Prior art keywords
- hole
- section
- cross
- length
- battery separator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/463—Separators, membranes or diaphragms characterised by their shape
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cell Separators (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to a high-efficiency gel battery separator. The high-efficiency gel battery separator comprises a substrate with the thickness of 0.28-0.5mm, wherein a plurality of through holes are formed in the substrate, the porosity of the through holes is more than 60%, the through holes comprise upper through holes and lower through holes, the upper through holes and the corresponding lower through holes are connected by connecting channels, each upper through hole is of a tapered structure and has a right-trapezoid-shaped cross section, the length of the upper bottom of the right trapezoid of the cross section of each upper through hole is L1 which is equal to 2* the length of the lower bottom of the right trapezoid L2, the bevel edge of each right trapezoid is arc, the inner side surface of each upper through hole is spherical, each lower through hole is of a tapered structure and has an isosceles-trapezoid-shaped cross section, and the length L3 of the upper bottom of the isosceles trapezoid of the cross section of each lower through hole is equal to the length L2 of the lower bottom of the right trapezoid of the cross section of each upper through hole; the high-efficiency gel battery separator has the high porosity, the high efficiency and excellent performances, so that the electrical properties of a gel battery can greatly improved.
Description
Technical field
The present invention relates to a kind of dividing plate, specifically a kind of colloid battery separator.
Background technology
Battery comprise the dividing plate between anode and negative electrode and prevent anode and negative electrode between short circuit, can be short-circuited when this dividing plate of conductive particle bridging or dividing plate are deteriorated to while allowing electrode contact.Effectively battery separator should be under the various electrolytical existence existing in battery chemically stable, physics is durable and freely allow ion to flow in whole battery.On battery separator, be distributed with some holes, electrolyte can be circulated, dividing plate mesopore rate is higher, and colloid permeability is larger, and battery efficiency is higher, and at present, the porosity of existing battery separator is generally on the low side, the requirement that cannot be up to state standards.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of colloid battery separator efficiently, and its porosity is high, and efficient excellent energy significantly improves the electric property of colloid battery.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of colloid battery separator efficiently, comprise substrate, wherein, the thickness of described substrate is 0.28-0.5mm, describedly substantially be provided with some through holes, the porosity > 60% of described through hole, described through hole comprises through hole and lower through-hole, between described upper through hole and lower through-hole, be connected by interface channel, described upper through hole is pyramidal structure, its cross sectional shape is right-angled trapezium, the upper base length L 1=2* of the right-angled trapezium that described upper through hole cross section the is length L 2 of going to the bottom, and its hypotenuse is curved, the medial surface that is described upper through hole is sphere, described lower through-hole is pyramidal structure, its cross sectional shape is isosceles trapezoid, the length L 2 of going to the bottom of the right-angled trapezium that the upper through hole of the upper base length L 3=cross section of the isosceles trapezoid that described lower through-hole cross section is is, the upper base length L 1 of the right-angled trapezium that described in length L 4 < that go to the bottom of the isosceles trapezoid that described lower through-hole cross section is, upper through hole cross section is, the height H 2 of the height H 1=2* lower through-hole of described upper through hole, described interface channel is cylindrical structural.
The efficient colloid battery separator of above-mentioned one, wherein, evenly reduce to center at the interior two ends without leave of described interface channel.
Beneficial effect of the present invention is:
Substrate of the present invention is provided with through hole, and the porosity > 60% of through hole, this porosity is much larger than 55% of national standard requirement, because porosity increases, resistance in colloid battery reduces, the permeability of colloid significantly increases, therefore all electric properties of colloid battery are all greatly improved;
Through hole comprises through hole and lower through-hole, and the shape setting of upper through hole and lower through-hole makes electrolyte osmosis more smooth and easy, has improved the efficiency of battery;
The thickness of substrate is 0.28-0.5mm, has increased the intensity of this colloid battery separator, has increased useful life.
Brief description of the drawings
Fig. 1 is cutaway view of the present invention
Fig. 2 is the cutaway view of through hole of the present invention
Fig. 3 is structure chart of the present invention
Embodiment
A kind of colloid battery separator efficiently as shown in the figure, comprise substrate 1, wherein, the thickness H3 of described substrate 1 is 0.28-0.5mm, described substrate 1 surface is provided with reinforcement 2, described reinforcement 2 is 75-85 ° with the angle a that substrate 1 horizontal direction forms, between described adjacent two reinforcements 2, be evenly provided with some through holes 3, the porosity > 60% of described through hole 3, described through hole 3 comprises through hole 4 and lower through-hole 5, between described upper through hole 4 and lower through-hole 5, be connected by interface channel 6, described upper through hole 4 is pyramidal structure, its cross sectional shape is right-angled trapezium, the upper base length L 1=2* of the right-angled trapezium that described upper through hole 4 cross sections the are length L 2 of going to the bottom, and its hypotenuse 41 is curved, the medial surface that is described upper through hole 4 is sphere, described lower through-hole 5 is pyramidal structure, its cross sectional shape is isosceles trapezoid, the length L 2 of going to the bottom of the right-angled trapezium that the upper through hole of the upper base length L 3=cross section of the isosceles trapezoid that described lower through-hole 5 cross sections are is, and two hypotenuse 51 is curved, the upper base length L 1 of the right-angled trapezium that described in length L 4 < that go to the bottom of the isosceles trapezoid that described lower through-hole 5 cross sections are, upper through hole 4 cross sections are, the height H 2 of the height H 1=2* lower through-hole 5 of described upper through hole 4, described interface channel 6 is cylindrical structural, the inner diameter d of described interface channel 6 evenly reduces to center from two ends.
Substrate of the present invention is provided with through hole, and the porosity > 60% of through hole, this porosity is much larger than 55% of national standard requirement, because porosity increases, resistance in colloid battery reduces, the permeability of colloid significantly increases, therefore all electric properties of colloid battery are all greatly improved;
Through hole comprises through hole and lower through-hole, and the shape setting of upper through hole and lower through-hole makes electrolyte osmosis more smooth and easy, has improved the efficiency of battery;
The thickness of substrate is 0.28-0.5mm, has increased the intensity of this colloid battery separator, has increased useful life.
Here description of the invention and application is illustrative, not wants scope of the present invention to limit in the above-described embodiments, and therefore, the present invention is not subject to the restriction of the present embodiment, and the technical scheme that any employing equivalence replacement obtains is all in the scope of protection of the invention.
Claims (2)
1. an efficient colloid battery separator, comprise substrate, it is characterized by, the thickness of described substrate is 0.28-0.5mm, describedly substantially be provided with some through holes, the porosity > 60% of described through hole, described through hole comprises through hole and lower through-hole, between described upper through hole and lower through-hole, be connected by interface channel, described upper through hole is pyramidal structure, its cross sectional shape is right-angled trapezium, the upper base length L 1=2* of the right-angled trapezium that described upper through hole cross section the is length L 2 of going to the bottom, and its hypotenuse is curved, the medial surface that is described upper through hole is sphere, described lower through-hole is pyramidal structure, its cross sectional shape is isosceles trapezoid, the length L 2 of going to the bottom of the right-angled trapezium that the upper through hole of the upper base length L 3=cross section of the isosceles trapezoid that described lower through-hole cross section is is, the upper base length L 1 of the right-angled trapezium that described in length L 4 < that go to the bottom of the isosceles trapezoid that described lower through-hole cross section is, upper through hole cross section is, the height H 2 of the height H 1=2* lower through-hole of described upper through hole, described interface channel is cylindrical structural.
2. the efficient colloid battery separator of one as claimed in claim 1, is characterized by, and evenly reduce to center at the interior two ends without leave of described interface channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224845.9A CN103972454A (en) | 2014-05-26 | 2014-05-26 | High-efficiency gel battery separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410224845.9A CN103972454A (en) | 2014-05-26 | 2014-05-26 | High-efficiency gel battery separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103972454A true CN103972454A (en) | 2014-08-06 |
Family
ID=51241717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410224845.9A Pending CN103972454A (en) | 2014-05-26 | 2014-05-26 | High-efficiency gel battery separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103972454A (en) |
-
2014
- 2014-05-26 CN CN201410224845.9A patent/CN103972454A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |