CN101029169A - Composite polymer electrolyte and its production - Google Patents
Composite polymer electrolyte and its production Download PDFInfo
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- CN101029169A CN101029169A CN 200710071848 CN200710071848A CN101029169A CN 101029169 A CN101029169 A CN 101029169A CN 200710071848 CN200710071848 CN 200710071848 CN 200710071848 A CN200710071848 A CN 200710071848A CN 101029169 A CN101029169 A CN 101029169A
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- filler
- polymer electrolyte
- peo
- composite polymer
- organic solvent
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Abstract
A composite polymer electrolyte and its production are disclosed. The electrolyte consists of PEO, lithium salt and filler. The process is carried out by mixing lithium salt with organic solvent in proportion of 0.1-0.01, adding into PEO in proportion of 0.01-0.25:1, mixing filler with organic solvent, laying aside, mixing blend 1 with blend 2, pouring it into mold, drying and forming. It has excellent conductivity and physical property.
Description
Technical field
The present invention relates to a kind of ionogen and preparation method thereof.
Background technology
(lithium salts comprises LiClO to the PEO-lithium salts composite electrolyte of broad research at present
4, LiTFSI, LiCF
3SO
3Deng) there is a following shortcoming:
1. the conductivity at room temperature rate is low;
2. the existing ultrafine powder filler (Al that widely selects for use
2O
3, TiO
2, ZrO
2, SiO
2, clay, saponite etc.) non-conductive, so these materials are electrochemically inactive material;
Summary of the invention
The objective of the invention is, single solvent difficult control rate of drying low and cause the problem of product physical behavior difference, and a kind of composite polymer electrolyte and preparation method thereof is provided for the conductivity at room temperature rate that solves existing PEO base polymer electrolyte.Composite polymer electrolyte of the present invention is made up of PEO, lithium salts and filler, and wherein the mass ratio of lithium salts and PEO is 0.1～0.5: 1, and the mass ratio of filler and PEO is 0.01～0.25: 1.
Composite polymer electrolyte preparation method's of the present invention step is as follows: one, with lithium salts and organic solvent mixing and stirring, wherein the mass ratio of lithium salts and PEO is 0.1～0.5: 1, the mass ratio of organic solvent and PEO is 10～100: 1, the PEO powder slowly is sprinkled into continues in the said mixture to be stirred to evenly; Two, filler is mixed with organic solvent, wherein the mass ratio of filler and PEO is 0～0.25: 1, sonic oscillation or stir 15～30min to evenly, static 3～5min; Three,, be poured in the mould moulding in dry 2～5 days under 20～60 ℃ of conditions (should under anhydrous condition, further dewater before using) with the mixture mixing and stirring of step 1 and step 2.
Organic solvent is acetonitrile or acetone in aforesaid method, or acetonitrile or both mixed solvents.
The present invention replaces fully with acetylene black, graphite, gac isoreactivity ultrafine particulate or part replaces Al
2O
3, TiO
2, ZrO
2, SiO
2Etc. the ultrafine powder filler, (specific conductivity can reach 5 * 10 20 ℃ the time further to improve its specific conductivity in the physical strength of improving the PEO base electrolyte
-5Scm
-1).Adopt double solvents simultaneously, can the electrolytical rate of drying of controlling polymers, the moulding process of control material obtains the better composite polymer electrolyte of physical behavior.
Embodiment:
Embodiment one: the composite polymer electrolyte of present embodiment is made up of PEO, lithium salts and filler, and wherein the mass ratio of lithium salts and PEO is 0.1～0.5: 1, and the mass ratio of filler and PEO is 0.01～0.25: 1.
The specific conductivity height of the polymkeric substance composite electrolyte of present embodiment (specific conductivity 20 ℃ time the can reach 5 * 10
-5Scm
-1).
Embodiment two: the mass ratio of lithium salts and PEO is 0.2～0.4: 1 in the present embodiment.Other is identical with embodiment one.
Embodiment three: the mass ratio of lithium salts and PEO is 0.3: 1 in the present embodiment.Other is identical with embodiment one.
Embodiment four: the mass ratio of filler and PEO is 0.10～0.20: 1 in the present embodiment.Other is identical with embodiment one.
Embodiment five: the mass ratio of filler and PEO is 0.15: 1 in the present embodiment.Other is identical with embodiment one.
Embodiment six: the lithium salts of present embodiment is anhydrous LiClO
4, LiTFSI or LiCF
3SO
3Other is identical with embodiment one.
Embodiment seven: the filler of present embodiment is conventional ultrafine powder filler and active superfine particulate, and the weight ratio of conventional ultrafine powder filler and active superfine particulate is 0～8: 1.Other is identical with embodiment one.
Embodiment eight: the weight ratio of conventional ultrafine powder filler and active superfine particulate is 1～7: 1 in the present embodiment.Other is identical with embodiment seven.
Embodiment nine: the weight ratio of conventional ultrafine powder filler and active superfine particulate is 5: 1 in the present embodiment.Other is identical with embodiment seven.
Embodiment ten: the weight ratio of conventional ultrafine powder filler and active superfine particulate is 6: 1 in the present embodiment.Other is identical with embodiment seven.
Embodiment 11: the active superfine particulate is acetylene black, graphite or gac in the present embodiment.Other is identical with embodiment seven.
Embodiment 12: conventional ultrafine powder filler is nanometer Al in the present embodiment
2O
3, nano-TiO
2, nanometer ZrO
2, nanometer SiO
2, oversubscription one or more the mixing in clay, the saponite of loosing.Other is identical with embodiment seven.
When the ultrafine powder filler is mixture in the present embodiment, press arbitrarily than mixing.
Embodiment 13: the filler of present embodiment is graphite and Al
2O
3Mix, wherein the weight percent of graphite is 60%.Other is identical with embodiment seven.
Embodiment 14: the present embodiment filler is acetylene black, graphite or gac.Other is identical with embodiment one.
Embodiment 15: composite polymer electrolyte preparation method's step is as follows in the present embodiment: one, with lithium salts and organic solvent mixing and stirring, wherein the mass ratio of lithium salts and PEO is 0.1～0.5: 1, the mass ratio of organic solvent and PEO is 10～100: 1, the PEO powder slowly is sprinkled into continues in the said mixture to be stirred to evenly; Two, filler is mixed with organic solvent, wherein the mass ratio of filler and PEO is 0～0.25: 1, sonic oscillation or stir 15～30min to evenly, static 3～5min; Three,, be poured into dry moulding in 2～5 days under 20～60 ℃ of conditions in the mould with the mixture mixing and stirring of step 1 and step 2.
Present embodiment is static back if there is precipitation then to discard throw out in step 2.
The rate of drying of the polymer dielectric of present embodiment can artificial control be beneficial to and obtains the good polymer dielectric of proterties by forming of mixed solvent is different.
Embodiment 16: the organic solvent of present embodiment in step 1 is acetonitrile, acetone or both mixtures.Other is identical with embodiment 15.
When the present embodiment organic solvent was mixture, acetonitrile was pressed arbitrarily than mixing with acetone.
Embodiment 17: the organic solvent of present embodiment in step 2 is acetonitrile, acetone or both mixtures.Other is identical with embodiment 15.
When the present embodiment organic solvent was mixture, acetonitrile was pressed arbitrarily than mixing with acetone.
Embodiment 18: the organic solvent of present embodiment in step 1 is acetonitrile, and the organic solvent in step 2 is an acetone.Other is identical with embodiment 15.
Embodiment 19: the organic solvent of present embodiment in step 1 is acetone, and the organic solvent in step 2 is an acetonitrile.Other is identical with embodiment 15.
Embodiment 20: present embodiment lithium salts in step 1 is anhydrous LiClO
4Other is identical with embodiment 15.
Embodiment 21: present embodiment filler in step 2 is a gac.Other is identical with embodiment 15.
Embodiment 22: present embodiment filler in step 2 is acetylene black and Al
2O
3, TiO
2Mixture, the weight percent content of acetylene black is 40%, Al
2O
3With TiO
2Weight ratio be 2: 1.Other is identical with embodiment 15.
Embodiment 23: present embodiment adopts the sonic oscillation mixing in step 2.Other is identical with embodiment 15.
Embodiment 24: present embodiment adopts stirring and evenly mixing in step 2.Other is identical with embodiment 15.
Claims (9)
1, a kind of composite polymer electrolyte is characterized in that it is made up of PEO, lithium salts and filler, and wherein the mass ratio of lithium salts and PEO is 0.1～0.5: 1, and the mass ratio of filler and PEO is 0.01～0.25: 1.
2, composite polymer electrolyte according to claim 1 is characterized in that lithium salts is anhydrous LiClO
4, LiTFSI or LiCF
3SO
3
3, composite polymer electrolyte according to claim 1 is characterized in that filler is conventional ultrafine powder filler and active superfine particulate, and the weight ratio of conventional ultrafine powder filler and active superfine particulate is 0～8: 1.
4, composite polymer electrolyte according to claim 3 is characterized in that the active superfine particulate is acetylene black, graphite or gac.
5, composite polymer electrolyte according to claim 3 is characterized in that conventional ultrafine powder filler is nanometer Al
2O
3, nano-TiO
2, nanometer ZrO
2, nanometer SiO
2, oversubscription one or more the mixing in clay, the saponite of loosing.
6, composite polymer electrolyte according to claim 1 and 2 is characterized in that filler is acetylene black, graphite or gac.
7, the method for preparing the described composite polymer electrolyte of claim 1, the step that it is characterized in that the preparation method is as follows: one, earlier with lithium salts and organic solvent mixing and stirring, wherein the mass ratio of lithium salts and PEO is 0.1～0.5: 1, the mass ratio of organic solvent and PEO is 10～100: 1, the PEO powder slowly is sprinkled into to continue in the said mixture to be stirred to evenly again; Two, filler is mixed with organic solvent, wherein the mass ratio of filler and PEO is 0.01～0.25: 1, sonic oscillation or stir 15～30min to evenly, static 3～5min; Three,, be poured into dry moulding in 2～5 days under 20～60 ℃ of conditions in the mould with the mixture mixing and stirring of step 1 and step 2.
8, the preparation method of composite polymer electrolyte according to claim 7 is characterized in that organic solvent is acetonitrile, acetone or both mixtures in step 1.
9, the preparation method of composite polymer electrolyte according to claim 7 is characterized in that organic solvent is acetonitrile, acetone or both mixtures in step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710071848 CN101029169A (en) | 2007-03-07 | 2007-03-07 | Composite polymer electrolyte and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710071848 CN101029169A (en) | 2007-03-07 | 2007-03-07 | Composite polymer electrolyte and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101029169A true CN101029169A (en) | 2007-09-05 |
Family
ID=38714728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710071848 Pending CN101029169A (en) | 2007-03-07 | 2007-03-07 | Composite polymer electrolyte and its production |
Country Status (1)
| Country | Link |
|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924246A (en) * | 2010-09-07 | 2010-12-22 | 上海交通大学 | Preparation method of composite solid electrolyte based on polyphosphazene carbide micro-nanometer material |
| CN107129671A (en) * | 2017-05-27 | 2017-09-05 | 郑州大学 | A kind of preparation method of anisotropic conductive polymer composite |
| CN113270640A (en) * | 2021-05-12 | 2021-08-17 | 徐文忠 | Solid electrolyte |
-
2007
- 2007-03-07 CN CN 200710071848 patent/CN101029169A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924246A (en) * | 2010-09-07 | 2010-12-22 | 上海交通大学 | Preparation method of composite solid electrolyte based on polyphosphazene carbide micro-nanometer material |
| CN107129671A (en) * | 2017-05-27 | 2017-09-05 | 郑州大学 | A kind of preparation method of anisotropic conductive polymer composite |
| CN107129671B (en) * | 2017-05-27 | 2019-04-02 | 郑州大学 | A kind of preparation method of anisotropic conductive polymer composite |
| CN113270640A (en) * | 2021-05-12 | 2021-08-17 | 徐文忠 | Solid electrolyte |
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