CN112126113A - Surface grafting modifier for mh-ni battery diaphragm - Google Patents
Surface grafting modifier for mh-ni battery diaphragm Download PDFInfo
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- CN112126113A CN112126113A CN202011019398.5A CN202011019398A CN112126113A CN 112126113 A CN112126113 A CN 112126113A CN 202011019398 A CN202011019398 A CN 202011019398A CN 112126113 A CN112126113 A CN 112126113A
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- China
- Prior art keywords
- parts
- lignosulfonate
- benzophenone
- acetone
- surface grafting
- Prior art date
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- 239000003607 modifier Substances 0.000 title claims abstract description 20
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229920001732 Lignosulfonate Polymers 0.000 claims abstract description 19
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 claims abstract description 18
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000012965 benzophenone Substances 0.000 claims abstract description 18
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 18
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 18
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 17
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000008367 deionised water Substances 0.000 claims abstract description 12
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 7
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000012982 microporous membrane Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 229920000578 graft copolymer Polymers 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/40—Impregnation
- C08J9/405—Impregnation with polymerisable compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/40—Impregnation
- C08J9/42—Impregnation with macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Cell Separators (AREA)
Abstract
The invention discloses a surface grafting modifier for an mh-ni battery diaphragm, which comprises the following components in percentage by weight: acrylic acid, deionized water, acetone, benzophenone, lignosulfonate and isomeric tridecanol polyoxyethylene ether; the weight parts of the components are respectively as follows: 10-20 parts of acrylic acid, 60-65 parts of deionized water, 30-40 parts of acetone, 0.25-0.5 part of benzophenone, 0.05-0.1 part of lignosulfonate and 0.5-0.8 part of isomeric tridecanol polyoxyethylene ether, wherein the purity of the acetone is 99.5-100%, and the purities of the benzophenone and the lignosulfonate are both 99.7-100%.
Description
Technical Field
The invention relates to the technical field of modifiers, in particular to a surface grafting modifier for an mh-ni battery diaphragm.
Background
Grafting refers to a reaction of combining proper branched chains or functional side groups on a macromolecular chain through chemical bonds, and the formed product is called a graft copolymer, wherein the performance of the graft copolymer is determined by the composition, the structure, the length and the number of branched chains of a main chain and the branched chains, and the graft modification of a polymer is a simple and effective method for expanding the application field of the polymer and improving the performance of a high molecular material.
The battery diaphragm usually adopts a PP microporous membrane, although the PP microporous membrane has strong mechanical strength, the PP microporous membrane also has strong hydrophobicity, so that the internal resistance of the battery is increased, therefore, grafting modification is needed to increase the hydrophilic performance of the diaphragm, a modifier is necessary in the surface grafting modification process, the common modifier can cause the blockage of the PP microporous membrane while increasing the hydrophilic performance of the diaphragm, so that the ion exchange amount is reduced, the performance of the battery is reduced, the modifier is usually formed by mixing a plurality of ingredients, and the condition of uneven surface grafting of the PP microporous membrane can occur if the ingredients cannot be uniformly mixed.
Disclosure of Invention
The invention aims to provide a surface grafting modifier for a mh-ni battery diaphragm, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a surface grafting modifier for a mh-ni battery separator comprises the following components in percentage by weight: acrylic acid, deionized water, acetone, benzophenone, lignosulfonate and isomeric tridecanol polyoxyethylene ether; the weight parts of the components are respectively as follows: 10-20 parts of acrylic acid, 60-65 parts of deionized water, 30-40 parts of acetone, 0.25-0.5 part of benzophenone, 0.05-0.1 part of lignosulfonate and 0.5-0.8 part of isomeric tridecanol polyoxyethylene ether.
According to the technical scheme, the purity of the acetone is 99.5-100%.
According to the technical scheme, the purity of the benzophenone and the lignosulfonate is 99.7-100%.
According to the technical scheme, the purity of the acrylic acid and the isomeric tridecanol polyoxyethylene ether is between 99.8 and 100 percent.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, through the addition of lignosulfonate, the ion exchange amount of the modified battery diaphragm is favorably improved, the performance of the mh-ni battery is enhanced, meanwhile, the addition of the isomeric tridecanol polyoxyethylene ether is favorable for increasing the permeability and the wettability of the modifier, and the hydrophilicity of the battery diaphragm after the grafting modification of the modifier is greatly enhanced, so that the internal resistance of the battery is favorably reduced, the energy consumption in the battery is reduced, and the efficiency of the battery is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that:
example 1:
a surface grafting modifier for a mh-ni battery separator comprises the following components in percentage by weight: acrylic acid, deionized water, acetone, benzophenone, lignosulfonate and isomeric tridecanol polyoxyethylene ether; the weight parts of the components are respectively as follows: 10 parts of acrylic acid, 60 parts of deionized water, 30 parts of acetone, 0.25 part of benzophenone, 0.05 part of lignosulfonate and 0.5 part of isomeric tridecanol polyoxyethylene ether, wherein the purity of the acetone is 99.5-100%, the purity of the benzophenone and the purity of the lignosulfonate are both 99.7-100%, and the purity of the acrylic acid and the isomeric tridecanol polyoxyethylene ether are both 99.8-100%.
Example 2:
a surface grafting modifier for a mh-ni battery separator comprises the following components in percentage by weight: acrylic acid, deionized water, acetone, benzophenone, lignosulfonate and isomeric tridecanol polyoxyethylene ether; the weight parts of the components are respectively as follows: 20 parts of acrylic acid, 65 parts of deionized water, 40 parts of acetone, 0.5 part of benzophenone, 0.1 part of lignosulfonate and 0.8 part of isomeric tridecanol polyoxyethylene ether, wherein the purity of the acetone is 99.5-100%, the purity of the benzophenone and the purity of the lignosulfonate are both 99.7-100%, and the purity of the acrylic acid and the isomeric tridecanol polyoxyethylene ether are both 99.8-100%.
Example 3:
a surface grafting modifier for a mh-ni battery separator comprises the following components in percentage by weight: acrylic acid, deionized water, acetone, benzophenone, lignosulfonate and isomeric tridecanol polyoxyethylene ether; the weight parts of the components are respectively as follows: 15 parts of acrylic acid, 62 parts of deionized water, 35 parts of acetone, 0.3 part of benzophenone, 0.08 part of lignosulfonate and 0.65 part of isomeric tridecanol polyoxyethylene ether, wherein the purity of the acetone is 99.5-100%, the purity of the benzophenone and the purity of the lignosulfonate are both 99.7-100%, and the purity of the acrylic acid and the isomeric tridecanol polyoxyethylene ether are both 99.8-100%.
After the modifier obtained in the above examples is used for graft modification of the battery separator, the test results are shown in the following table:
| example 1 | Example 2 | Example 3 | Comparative example | |
| Hydrophilicity | Is obviously enhanced | Is obviously enhanced | Is obviously enhanced | Without change |
| Amount of ion exchange | Is obviously enlarged | Is obviously enlarged | Is obviously enlarged | Without change |
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A surface grafting modifier for a mh-ni battery separator comprises the following components in percentage by weight: acrylic acid, deionized water, acetone, benzophenone, lignosulfonate and isomeric tridecanol polyoxyethylene ether; the method is characterized in that: the weight parts of the components are respectively as follows: 10-20 parts of acrylic acid, 60-65 parts of deionized water, 30-40 parts of acetone, 0.25-0.5 part of benzophenone, 0.05-0.1 part of lignosulfonate and 0.5-0.8 part of isomeric tridecanol polyoxyethylene ether.
2. The surface grafting modifier for mh-ni battery separator as claimed in claim 1, wherein: the purity of the acetone is between 99.5 and 100 percent.
3. The surface grafting modifier for mh-ni battery separator as claimed in claim 1, wherein: the purity of the benzophenone and the lignosulfonate is between 99.7 and 100 percent.
4. The surface grafting modifier for mh-ni battery separator as claimed in claim 1, wherein: the purity of the acrylic acid and the isomeric tridecanol polyoxyethylene ether is between 99.8 and 100 percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011019398.5A CN112126113A (en) | 2020-09-24 | 2020-09-24 | Surface grafting modifier for mh-ni battery diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011019398.5A CN112126113A (en) | 2020-09-24 | 2020-09-24 | Surface grafting modifier for mh-ni battery diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112126113A true CN112126113A (en) | 2020-12-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011019398.5A Pending CN112126113A (en) | 2020-09-24 | 2020-09-24 | Surface grafting modifier for mh-ni battery diaphragm |
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| Country | Link |
|---|---|
| CN (1) | CN112126113A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710732A (en) * | 2004-06-16 | 2005-12-21 | 上海世龙科技有限公司 | Cell diaphragm, its preparation method and zinc electrode secondary battery containing said diaphragm |
| CN101948571A (en) * | 2010-08-20 | 2011-01-19 | 中国科学院上海应用物理研究所 | Grafting modified polymer material and preparation method and application thereof |
| CN102108635A (en) * | 2011-01-25 | 2011-06-29 | 桂林正翰科技开发有限责任公司 | Method for preparing battery diaphragm material by irradiation grafting of acrylic acid |
| CN102569696A (en) * | 2010-12-15 | 2012-07-11 | 莱州联友金浩新型材料有限公司 | Novel nickel-hydrogen battery diaphragm |
| CN105826507A (en) * | 2015-07-11 | 2016-08-03 | 常州市盈科电池隔膜有限公司 | Battery diaphragm and manufacturing method thereof |
| CN106348405A (en) * | 2016-09-06 | 2017-01-25 | 深圳市君想环境科技有限公司 | Novel preparation method of homogenous film material for electric desalting and electrophoresis |
| CN107022209A (en) * | 2017-04-24 | 2017-08-08 | 合肥星源新能源材料有限公司 | A kind of lithium ion battery separator coating of high wellability |
| CN107141503A (en) * | 2017-04-05 | 2017-09-08 | 河南师范大学 | A kind of preparation method of the polyolefin modified barrier film of lithium-sulfur cell |
| CN107262054A (en) * | 2017-07-28 | 2017-10-20 | 江苏大学 | A kind of preparation method and applications of magnetic lignin base adsorbent |
| CN108987649A (en) * | 2018-07-16 | 2018-12-11 | 怀化学院 | Battery ceramic slurry and preparation method thereof, application, battery diaphragm and battery |
-
2020
- 2020-09-24 CN CN202011019398.5A patent/CN112126113A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710732A (en) * | 2004-06-16 | 2005-12-21 | 上海世龙科技有限公司 | Cell diaphragm, its preparation method and zinc electrode secondary battery containing said diaphragm |
| CN101948571A (en) * | 2010-08-20 | 2011-01-19 | 中国科学院上海应用物理研究所 | Grafting modified polymer material and preparation method and application thereof |
| CN102569696A (en) * | 2010-12-15 | 2012-07-11 | 莱州联友金浩新型材料有限公司 | Novel nickel-hydrogen battery diaphragm |
| CN102108635A (en) * | 2011-01-25 | 2011-06-29 | 桂林正翰科技开发有限责任公司 | Method for preparing battery diaphragm material by irradiation grafting of acrylic acid |
| CN105826507A (en) * | 2015-07-11 | 2016-08-03 | 常州市盈科电池隔膜有限公司 | Battery diaphragm and manufacturing method thereof |
| CN106348405A (en) * | 2016-09-06 | 2017-01-25 | 深圳市君想环境科技有限公司 | Novel preparation method of homogenous film material for electric desalting and electrophoresis |
| CN107141503A (en) * | 2017-04-05 | 2017-09-08 | 河南师范大学 | A kind of preparation method of the polyolefin modified barrier film of lithium-sulfur cell |
| CN107022209A (en) * | 2017-04-24 | 2017-08-08 | 合肥星源新能源材料有限公司 | A kind of lithium ion battery separator coating of high wellability |
| CN107262054A (en) * | 2017-07-28 | 2017-10-20 | 江苏大学 | A kind of preparation method and applications of magnetic lignin base adsorbent |
| CN108987649A (en) * | 2018-07-16 | 2018-12-11 | 怀化学院 | Battery ceramic slurry and preparation method thereof, application, battery diaphragm and battery |
Non-Patent Citations (1)
| Title |
|---|
| 朱谱新等: "《经纱上浆材料》", 31 December 2005, 中国纺织出版社 * |
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Application publication date: 20201225 |
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| RJ01 | Rejection of invention patent application after publication |