CN103325994A - Preparation method of lithium-ion battery electrode - Google Patents
Preparation method of lithium-ion battery electrode Download PDFInfo
- Publication number
- CN103325994A CN103325994A CN2013102325713A CN201310232571A CN103325994A CN 103325994 A CN103325994 A CN 103325994A CN 2013102325713 A CN2013102325713 A CN 2013102325713A CN 201310232571 A CN201310232571 A CN 201310232571A CN 103325994 A CN103325994 A CN 103325994A
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- CN
- China
- Prior art keywords
- lithium
- alkaline
- conductive glass
- preparation
- conductive
- 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
Links
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title abstract description 4
- 239000011521 glass Substances 0.000 claims abstract description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 12
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000005406 washing Methods 0.000 claims abstract description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000006229 carbon black Substances 0.000 claims abstract description 8
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 8
- 239000010439 graphite Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- YZSKZXUDGLALTQ-UHFFFAOYSA-N [Li][C] Chemical compound [Li][C] YZSKZXUDGLALTQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002791 soaking Methods 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000004327 boric acid Substances 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- OAZSCQXMFIZETN-UHFFFAOYSA-M [Li+].CC(=O)[O-].O.O.O.O Chemical compound [Li+].CC(=O)[O-].O.O.O.O OAZSCQXMFIZETN-UHFFFAOYSA-M 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- 238000007605 air drying Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 235000019628 coolness Nutrition 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000011265 semifinished product Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- WDJHALXBUFZDSR-UHFFFAOYSA-N acetoacetic acid Chemical compound CC(=O)CC(O)=O WDJHALXBUFZDSR-UHFFFAOYSA-N 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000002156 mixing Methods 0.000 abstract 2
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000012805 post-processing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention provides a preparation method of a lithium-ion battery electrode. The preparation method comprises the following steps of: (1) mixing lithium hydroxide, boric acid and acetic acid, heating the mixture to 220 to 270 DEG C, preserving the temperature, and then heating the mixture to 400 DEG C to obtain diacetic acid lithium borate particles; (2) dissolving the diacetic acid lithium borate particles into a solvent, filtering the solution, adding superconduction carbon black and conductive graphite, mixing the superconduction carbon black and the conductive graphite for 30min at the temperature of 100 DEG C, and then drying the mixture to obtain a conductive carbon lithium mixture; (3) soaking and washing alkaline conductive glass in an alkaline washing solution to remove impurities on the surface of the alkaline conductive glass; (4) taking out the soaked alkaline conductive glass, washing the washing solution on the surface of the alkaline conductive glass with water, ultrasonically washing the conductive glass through acetone, then washing the conductive glass through the water, and drying the conductive glass; coating and postprocessing. The impedance of the lithium-ion battery electrode obtained through using the method is small.
Description
Technical field
The present invention relates to a kind of preparation method, relate in particular to a kind of preparation method of lithium ion cell electrode.
Background technology
Battery has been widely used on numerous occasions and the product, and wherein the efficient of battery is that people want the target that improves always.People have carried out effort from every side, improve the efficient of battery with hope, and such as from new material, new preparation process etc., for example the impedance of electrode is usually larger in lithium ion battery, affects battery efficiency.
Summary of the invention
The technical problem that the present invention mainly solves is that the impedance of present lithium ion cell electrode is larger, thereby affects battery efficiency.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses a kind of preparation method of lithium ion cell electrode, may further comprise the steps:
(1), lithium hydroxide, boric acid and acetic acid are mixed, be heated to 220-270 degree centigrade after insulation, be warming up to again 400 degrees centigrade, obtain two acetate tetrahydrate lithium particles;
(2), with two acetate tetrahydrate lithium grain dissolutions in solvent, add superconduction carbon black and electrically conductive graphite after filtering, 100 degrees centigrade of lower stirrings 30 minutes, then dry, obtain conductive carbon lithium salts mixture;
(3), with alkaline electro-conductive glass soaking and washing in alkaline cleaning fluid, remove the surface impurity;
(4), the alkaline electro-conductive glass after will soaking takes out, and the cleaning fluid water on surface is rinsed well, carries out ultrasonic cleaning with acetone again, then water is rinsed well, oven dry;
(5), conductive carbon lithium salts mixture is coated in the predeterminated position of alkaline conductive glass surface, sintering half an hour under the 560-620 degree celsius temperature;
(6), with the electrode semi-finished product behind sintering coolings, then immersed in the absolute alcohol 8-10 hour, after the taking-up that alcohol wash is clean, get final product behind the natural air drying.
In a preferred embodiment of the present invention, heating-up temperature is 250 degrees centigrade in the step (1).
In a preferred embodiment of the present invention, the mass ratio of superconduction carbon black and electrically conductive graphite is 1:2 in the step (2).
Compared to prior art, the impedance of the lithium ion cell electrode that preparation method of the present invention obtains is less, helps to improve the efficient of battery.
Embodiment
The below will be clearly and completely described the technical scheme in the embodiment of the invention, and obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.
The embodiment of the invention discloses a kind of preparation method of lithium ion cell electrode, may further comprise the steps:
(1), lithium hydroxide, boric acid and acetic acid are mixed, be heated to 220-270 degree centigrade after insulation, be warming up to again 400 degrees centigrade, obtain two acetate tetrahydrate lithium particles;
(2), with two acetate tetrahydrate lithium grain dissolutions in solvent, add superconduction carbon black and electrically conductive graphite after filtering, 100 degrees centigrade of lower stirrings 30 minutes, then dry, obtain conductive carbon lithium salts mixture;
(3), with alkaline electro-conductive glass soaking and washing in alkaline cleaning fluid, remove the surface impurity;
(4), the alkaline electro-conductive glass after will soaking takes out, and the cleaning fluid water on surface is rinsed well, carries out ultrasonic cleaning with acetone again, then water is rinsed well, oven dry;
(5), conductive carbon lithium salts mixture is coated in the predeterminated position of alkaline conductive glass surface, sintering half an hour under the 560-620 degree celsius temperature;
(6), with the electrode semi-finished product behind sintering coolings, then immersed in the absolute alcohol 8-10 hour, after the taking-up that alcohol wash is clean, get final product behind the natural air drying.
In a preferred embodiment of the present invention, heating-up temperature is 250 degrees centigrade in the step (1).
In a preferred embodiment of the present invention, the mass ratio of superconduction carbon black and electrically conductive graphite is 1:2 in the step (2).
Compared to prior art, the impedance of the lithium ion cell electrode that preparation method of the present invention obtains is less, helps to improve the efficient of battery.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (3)
1. the preparation method of a lithium ion cell electrode is characterized in that, may further comprise the steps:
(1), lithium hydroxide, boric acid and acetic acid are mixed, be heated to 220-270 degree centigrade after insulation, be warming up to again 400 degrees centigrade, obtain two acetate tetrahydrate lithium particles;
(2), with two acetate tetrahydrate lithium grain dissolutions in solvent, add superconduction carbon black and electrically conductive graphite after filtering, 100 degrees centigrade of lower stirrings 30 minutes, then dry, obtain conductive carbon lithium salts mixture;
(3), with alkaline electro-conductive glass soaking and washing in alkaline cleaning fluid, remove the surface impurity;
(4), the alkaline electro-conductive glass after will soaking takes out, and the cleaning fluid water on surface is rinsed well, carries out ultrasonic cleaning with acetone again, then water is rinsed well, oven dry;
(5), conductive carbon lithium salts mixture is coated in the predeterminated position of alkaline conductive glass surface, sintering half an hour under the 560-620 degree celsius temperature;
(6), with the electrode semi-finished product behind sintering coolings, then immersed in the absolute alcohol 8-10 hour, after the taking-up that alcohol wash is clean, get final product behind the natural air drying.
2. the preparation method of lithium ion cell electrode according to claim 1 is characterized in that, heating-up temperature is 250 degrees centigrade in the step (1).
3. the preparation method of lithium ion cell electrode according to claim 1 is characterized in that, the mass ratio of superconduction carbon black and electrically conductive graphite is 1:2 in the step (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102325713A CN103325994A (en) | 2013-06-13 | 2013-06-13 | Preparation method of lithium-ion battery electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102325713A CN103325994A (en) | 2013-06-13 | 2013-06-13 | Preparation method of lithium-ion battery electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103325994A true CN103325994A (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102325713A Pending CN103325994A (en) | 2013-06-13 | 2013-06-13 | Preparation method of lithium-ion battery electrode |
Country Status (1)
| Country | Link |
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| CN (1) | CN103325994A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463483A (en) * | 2020-04-29 | 2020-07-28 | 湖南航盛新能源材料有限公司 | Preparation method and formula of lithium borate-containing lithium ion battery electrolyte |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687081A (en) * | 2005-04-11 | 2005-10-26 | 北京科技大学 | Method for synthesizing dioxalate group lithium borate |
| WO2009004061A1 (en) * | 2007-07-04 | 2009-01-08 | Chemetall Gmbh | CRYSTALLINE, COMPLETELY SOLUBLE LITHIUM BIS(OXALATO)BORATE (LiBOB) |
| CN102543473A (en) * | 2012-02-08 | 2012-07-04 | 黑龙江大学 | Preparation method of graphene and conductive carbon black composite material counter electrode |
-
2013
- 2013-06-13 CN CN2013102325713A patent/CN103325994A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687081A (en) * | 2005-04-11 | 2005-10-26 | 北京科技大学 | Method for synthesizing dioxalate group lithium borate |
| WO2009004061A1 (en) * | 2007-07-04 | 2009-01-08 | Chemetall Gmbh | CRYSTALLINE, COMPLETELY SOLUBLE LITHIUM BIS(OXALATO)BORATE (LiBOB) |
| CN102543473A (en) * | 2012-02-08 | 2012-07-04 | 黑龙江大学 | Preparation method of graphene and conductive carbon black composite material counter electrode |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463483A (en) * | 2020-04-29 | 2020-07-28 | 湖南航盛新能源材料有限公司 | Preparation method and formula of lithium borate-containing lithium ion battery electrolyte |
| CN111463483B (en) * | 2020-04-29 | 2024-01-19 | 贵州航盛锂能科技有限公司 | Preparation method and formula of lithium ion battery electrolyte containing lithium borate |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHENG YULIN Free format text: FORMER OWNER: SUZHOU NUOXIN INNOVATION ENERGY CO., LTD. Effective date: 20140403 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215121 SUZHOU, JIANGSU PROVINCE TO: 518052 SHENZHEN, GUANGDONG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20140403 Address after: 518052 room 217, West Tower, Nanshan digital culture industry base, Shenzhen, Nanshan District, Guangdong Applicant after: Zheng Yulin Address before: 215121, No. 3, Jinling West Road, 288 Town, Suzhou Industrial Park, Jiangsu Province, 309 Applicant before: Suzhou Nuoxin Innovation Energy Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |