CN110518253B - 一种锂电池负极集流体及其制备方法 - Google Patents
一种锂电池负极集流体及其制备方法 Download PDFInfo
- Publication number
- CN110518253B CN110518253B CN201910818935.3A CN201910818935A CN110518253B CN 110518253 B CN110518253 B CN 110518253B CN 201910818935 A CN201910818935 A CN 201910818935A CN 110518253 B CN110518253 B CN 110518253B
- Authority
- CN
- China
- Prior art keywords
- current collector
- carbon
- dopamine
- lithium battery
- coating
- 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.)
- Active
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000011889 copper foil Substances 0.000 claims abstract description 38
- 239000006185 dispersion Substances 0.000 claims abstract description 15
- 229920001690 polydopamine Polymers 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 claims description 104
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 88
- 229910052799 carbon Inorganic materials 0.000 claims description 63
- 229960003638 dopamine Drugs 0.000 claims description 52
- 239000007983 Tris buffer Substances 0.000 claims description 48
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 48
- 239000000243 solution Substances 0.000 claims description 43
- 229920002873 Polyethylenimine Polymers 0.000 claims description 39
- 239000011248 coating agent Substances 0.000 claims description 38
- 238000000576 coating method Methods 0.000 claims description 38
- 238000003756 stirring Methods 0.000 claims description 26
- 229920000642 polymer Polymers 0.000 claims description 22
- 239000002002 slurry Substances 0.000 claims description 22
- 239000002131 composite material Substances 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 11
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- 239000002041 carbon nanotube Substances 0.000 claims description 5
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 5
- 238000003618 dip coating Methods 0.000 claims description 5
- 229910021389 graphene Inorganic materials 0.000 claims description 5
- 238000007646 gravure printing Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 4
- 238000007765 extrusion coating Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 13
- 229910052710 silicon Inorganic materials 0.000 abstract description 13
- 239000010703 silicon Substances 0.000 abstract description 13
- 239000013543 active substance Substances 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 5
- 239000003575 carbonaceous material Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 238000006116 polymerization reaction Methods 0.000 abstract description 2
- 230000009920 chelation Effects 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 14
- 239000010410 layer Substances 0.000 description 7
- 239000006230 acetylene black Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000011267 electrode slurry Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002109 single walled nanotube Substances 0.000 description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 2
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- -1 uniformly mixing Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/663—Selection of materials containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/665—Composites
- H01M4/667—Composites in the form of layers, e.g. coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/668—Composites of electroconductive material and synthetic resins
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
Description
编号 | 剥离强度(N/m) | 电阻率(mΩ·cm) | 1C放电容(mAh) | 1C 300周容量保持率(%) |
实施例1 | 22.8 | 16.3 | 9581 | 90.4 |
实施例2 | 21.9 | 17.2 | 9533 | 89.4 |
实施例3 | 21.3 | 17.7 | 9479 | 88.1 |
对比例1 | 19.2 | 19.6 | 9414 | 84.2 |
对比例2 | 20.5 | 18.2 | 9444 | 86.3 |
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910818935.3A CN110518253B (zh) | 2019-08-30 | 2019-08-30 | 一种锂电池负极集流体及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910818935.3A CN110518253B (zh) | 2019-08-30 | 2019-08-30 | 一种锂电池负极集流体及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110518253A CN110518253A (zh) | 2019-11-29 |
CN110518253B true CN110518253B (zh) | 2021-01-26 |
Family
ID=68629950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910818935.3A Active CN110518253B (zh) | 2019-08-30 | 2019-08-30 | 一种锂电池负极集流体及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110518253B (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111534243A (zh) * | 2020-05-08 | 2020-08-14 | 安徽格林开思茂光电科技股份有限公司 | 一种锂电池用涂碳铝箔导电胶带及其制备方法 |
CN114597407B (zh) * | 2020-12-07 | 2024-03-19 | 中国科学院大连化学物理研究所 | 一种锌负极及其制备方法和应用 |
CN112310403B (zh) * | 2021-01-04 | 2021-04-06 | 清陶(昆山)能源发展有限公司 | 一种锂离子电池硅基负极及其制备方法、应用 |
CN113328088B (zh) * | 2021-05-17 | 2022-06-07 | 湘潭大学 | 一种实现电极材料表面改性的可控方法 |
CN113422104B (zh) * | 2021-06-22 | 2022-06-17 | 天目湖先进储能技术研究院有限公司 | 一种可放电至零伏的植入式锂离子电池 |
CN113937269B (zh) * | 2021-10-13 | 2023-09-01 | 福州大学 | 一种银颗粒涂层修饰的三维多孔铜集流体-锂负极一体结构及其制备方法和应用 |
CN116454287B (zh) * | 2023-06-16 | 2023-08-25 | 广州纳诺新材料技术有限公司 | 一种高循环性能锂电池、集流体及其制备方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI613148B (zh) * | 2015-11-13 | 2018-02-01 | 中原大學 | 石墨烯複合材料及其製備方法 |
CN107286757A (zh) * | 2017-07-11 | 2017-10-24 | 佛山市中技烯米新材料有限公司 | 一种涂布液、集电体及其制备方法 |
CN107546391B (zh) * | 2017-07-14 | 2020-10-27 | 中国第一汽车股份有限公司 | 聚多巴胺及石墨烯复合涂层 |
KR101876801B1 (ko) * | 2018-02-06 | 2018-07-11 | 한밭대학교 산학협력단 | 도파민계 중합체가 코팅된 입자, 이를 포함하는 입자층, 이를 포함하는 전극 및 이들의 제조 방법 |
CN109817946A (zh) * | 2019-03-01 | 2019-05-28 | 湖北锂诺新能源科技有限公司 | 多层硅负极材料及其制备方法与锂离子电池 |
-
2019
- 2019-08-30 CN CN201910818935.3A patent/CN110518253B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN110518253A (zh) | 2019-11-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110518253B (zh) | 一种锂电池负极集流体及其制备方法 | |
JP7175355B2 (ja) | ケイ素系負極材料、その製造方法、およびリチウムイオン二次電池における使用 | |
CN108511685B (zh) | 一种含有导电涂层的锂离子电池负极片及其制备方法 | |
CN111785923B (zh) | 锂离子电池阳极及其制备方法和应用与锂离子电池 | |
CN110739485A (zh) | 一种低温锂离子电池 | |
CN112103468B (zh) | 一种负极片及包括该负极片的锂离子电池 | |
KR20070100353A (ko) | 이차전지용 집전기, 이차전지 양극, 이차전지 음극,이차전지 및 그들의 제조 방법 | |
CN111244455A (zh) | 一种锂离子电池硅碳复合负极材料复合导电剂、负极片及其制备方法 | |
WO2022021933A1 (zh) | 非水电解质二次电池用负极材料及其制备方法 | |
CN113659125B (zh) | 一种硅碳复合材料及其制备方法 | |
CN113193161B (zh) | 一种电极组件及电化学装置 | |
CN112510185A (zh) | 一种硅碳复合负极材料及其制作方法 | |
CN111244410A (zh) | 锂电池负极材料及其制备方法 | |
CN114079054A (zh) | 锂电池负极材料及其制备方法 | |
CN111613774A (zh) | 一种负极片及其制备方法和应用 | |
CN114122400A (zh) | 一种负极极片及含该负极极片的锂离子电池 | |
CN115395116A (zh) | 一种钠离子电池正极极片及其制备方法、钠离子电池 | |
CN115275191A (zh) | 一种负极材料、负极片及钠离子电池 | |
CN114709367A (zh) | 负极片、锂离子电池及负极片的制备方法 | |
US20230343943A1 (en) | Negative electrode material, negative electrode plate, and electrochemical apparatus and electronic apparatus containing such negative electrode plate | |
CN113497217A (zh) | 电极及其制备方法、电池 | |
CN116314587A (zh) | 一种钠离子电池负极片及钠离子电池 | |
CN115911380A (zh) | 正极材料、正极材料的制备方法、正极极片和钠离子电池 | |
CN115700935A (zh) | 正极集流体固态电解质涂层、正极极片及制备方法和应用 | |
CN113258071B (zh) | 复合粘结剂、负极浆料、硅负极片及锂离子电池 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20240222 Address after: 710061 3rd Floor, No. 88 Aerospace East Road, National Civil Aerospace Industry Base, Xi'an City, Shaanxi Province Patentee after: Shaanxi Qingke Energy Technology Co.,Ltd. Country or region after: China Address before: 710077 Shaanxi Coal Industry Chemical Group Co., Ltd. No. 2 Jinye Road, Xi'an High-tech Zone, Shaanxi Province Patentee before: SHAANXI COAL AND CHEMICAL TECHNOLOGY INSTITUTE Co.,Ltd. Country or region before: China |
|
TR01 | Transfer of patent right |