WO2017107806A1 - Procédé de préparation d'une pâte d'électrode positive pour batterie au lithium-ion - Google Patents

Procédé de préparation d'une pâte d'électrode positive pour batterie au lithium-ion Download PDF

Info

Publication number
WO2017107806A1
WO2017107806A1 PCT/CN2016/109632 CN2016109632W WO2017107806A1 WO 2017107806 A1 WO2017107806 A1 WO 2017107806A1 CN 2016109632 W CN2016109632 W CN 2016109632W WO 2017107806 A1 WO2017107806 A1 WO 2017107806A1
Authority
WO
WIPO (PCT)
Prior art keywords
speed
battery
ion battery
low
positive electrode
Prior art date
Application number
PCT/CN2016/109632
Other languages
English (en)
Chinese (zh)
Inventor
王海波
Original Assignee
苏州格瑞动力电源科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 苏州格瑞动力电源科技有限公司 filed Critical 苏州格瑞动力电源科技有限公司
Publication of WO2017107806A1 publication Critical patent/WO2017107806A1/fr

Links

Classifications

    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • H01M4/625—Carbon or graphite
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • 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

Definitions

  • the invention relates to a preparation method of a positive electrode sheet for a lithium ion battery.
  • Lithium-ion batteries are widely used in portable devices such as mobile phones, camcorders, and notebook computers because of their high operating voltage, high specific energy, long cycle life, low self-discharge rate, no memory effect, and environmental friendliness.
  • the lithium ion battery is mainly composed of a positive electrode material, a negative electrode material, a separator material and an electrolyte.
  • the performance of the positive electrode material directly affects various performance indexes of the lithium ion battery, and occupies a core position in the lithium ion battery.
  • the capacitance, electrical conductivity and safety of the lithium ion battery can be improved by adding a micro-conductive material such as graphene or carbon nanotube to the positive electrode material.
  • the object of the present invention is to overcome the defects existing in the prior art, and to provide a preparation method of a positive electrode sheet for a lithium ion battery, which can improve the dispersion performance of the ultra-fine conductive material, thereby effectively improving the capacity, cycle performance and safety of the battery core. performance.
  • the technical solution of the present invention includes the following steps:
  • the amount of glue is 1-3% of the total amount of the cathode material, first add a part, according to the low speed (usually 50-100r/min), medium speed (usually 1000r/min), low speed program agitation 0.5-1h, 0.5-2h, 0.5-1h;
  • NMP N-methylpyrrolidone
  • the positive electrode active material is any one of lithium cobaltate, a ternary material, lithium manganate, and lithium iron phosphate.
  • the invention has the advantages and beneficial effects that the dispersing performance of the micro-conductive material such as graphene or carbon nanotubes is effectively improved, the capacity and cycle performance of the lithium ion battery cell can be effectively improved, and the heat dissipation performance of the battery can be improved in particular. Thereby improving the safety performance of the battery.
  • the amount of the glue liquid is 3% of the total amount of the cathode material, first add a part, stir at 100r/min for 0.5h, stir at 1000r/min for 1h, 50r Stir for 1 h under /min conditions;
  • the positive electrode active material is lithium cobaltate, ternary material or lithium manganate, the viscosity is adjusted to 2000-10000 CPS, and if the positive active material is ferric manganese phosphate, the viscosity is adjusted to 8000. -12000 CPS;

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)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

La présente invention concerne un procédé de préparation d'une pâte d'électrode positive pour une batterie au lithium-ion, comprenant les étapes suivantes consistant à : premièrement, mélanger ensemble un matériau réactif d'électrode positive, un agent conducteur et un graphite conducteur dans un certain rapport ; extruder à sec dans une machine de dispersion, puis ajouter un adhésif en graphène dispersé ou un adhésif à nanotubes en carbone dans un certain rapport ; remuer pendant différents temps selon un programme de vitesse lente, de vitesse moyenne et de vitesse lente ; puis ajouter l'adhésif restant et remuer selon un programme de vitesse lente, vitesse élevée, vitesse lente pendant différentes périodes de temps ; puis ajouter du NMP pour ajuster la viscosité de la barbotine, et supprimer les bulles, décharger le matériau, revêtir, fabriquer des plaques et produire la cellule de batterie. La présente invention améliore effectivement la dispersibilité de matériaux micro-conducteurs tels que des nanotubes en graphène et en carbone, augmente effectivement la capacité des cellules de la batterie et améliore les performances de cycle, spécialement les performances de dissipation de chaleur de la batterie, ce qui améliore les performances de sécurité de la batterie.
PCT/CN2016/109632 2015-12-25 2016-12-13 Procédé de préparation d'une pâte d'électrode positive pour batterie au lithium-ion WO2017107806A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510985412.XA CN105406081A (zh) 2015-12-25 2015-12-25 一种锂离子电池正极浆料的制备方法
CN201510985412.X 2015-12-25

Publications (1)

Publication Number Publication Date
WO2017107806A1 true WO2017107806A1 (fr) 2017-06-29

Family

ID=55471444

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/109632 WO2017107806A1 (fr) 2015-12-25 2016-12-13 Procédé de préparation d'une pâte d'électrode positive pour batterie au lithium-ion

Country Status (2)

Country Link
CN (1) CN105406081A (fr)
WO (1) WO2017107806A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112234199A (zh) * 2020-09-15 2021-01-15 深圳市拓邦锂电池有限公司 锂离子电池正极浆料及其制备方法和锂离子电池正极片
CN113260737A (zh) * 2019-04-26 2021-08-13 松下知识产权经营株式会社 膜电极接合体、电化学装置和电化学系统
CN114005983A (zh) * 2021-10-14 2022-02-01 华中科技大学 一种无添加剂的五氧化二钒/碳电极浆料制备方法及产品

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105406081A (zh) * 2015-12-25 2016-03-16 苏州格瑞动力电源科技有限公司 一种锂离子电池正极浆料的制备方法
CN108767191B (zh) * 2018-05-28 2020-06-05 东莞塔菲尔新能源科技有限公司 一种锂离子电池正极浆料的制备方法
CN109244464A (zh) * 2018-09-06 2019-01-18 中国航发北京航空材料研究院 一种石墨烯正极浆料及高效可控制备方法
CN110061222B (zh) * 2019-04-30 2021-07-16 郑州中科新兴产业技术研究院 一种锂电池浆料制备方法及其应用

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102306842A (zh) * 2011-09-08 2012-01-04 浙江吉能电池科技有限公司 一种圆柱状锂离子电池的制备方法
CN103606650A (zh) * 2013-11-30 2014-02-26 东莞市金源电池科技有限公司 一种锂离子电池浆料的碳纳米管分散工艺
CN103633385A (zh) * 2013-11-15 2014-03-12 江苏天鹏电源有限公司 一种用于解决锂离子电池整组短路问题的方法
CN105406081A (zh) * 2015-12-25 2016-03-16 苏州格瑞动力电源科技有限公司 一种锂离子电池正极浆料的制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102738446B (zh) * 2011-04-15 2015-07-22 比克国际(天津)有限公司 锂离子电池浆料及其制备方法,及锂离子电池
CN102891283B (zh) * 2011-07-22 2015-06-10 湖北骆驼特种电源有限公司 锂离子动力电池负极干混配料工艺
CN103579579B (zh) * 2012-08-06 2016-12-21 万向电动汽车有限公司 一种锂离子电池水性正极浆料及其制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102306842A (zh) * 2011-09-08 2012-01-04 浙江吉能电池科技有限公司 一种圆柱状锂离子电池的制备方法
CN103633385A (zh) * 2013-11-15 2014-03-12 江苏天鹏电源有限公司 一种用于解决锂离子电池整组短路问题的方法
CN103606650A (zh) * 2013-11-30 2014-02-26 东莞市金源电池科技有限公司 一种锂离子电池浆料的碳纳米管分散工艺
CN105406081A (zh) * 2015-12-25 2016-03-16 苏州格瑞动力电源科技有限公司 一种锂离子电池正极浆料的制备方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113260737A (zh) * 2019-04-26 2021-08-13 松下知识产权经营株式会社 膜电极接合体、电化学装置和电化学系统
CN112234199A (zh) * 2020-09-15 2021-01-15 深圳市拓邦锂电池有限公司 锂离子电池正极浆料及其制备方法和锂离子电池正极片
CN114005983A (zh) * 2021-10-14 2022-02-01 华中科技大学 一种无添加剂的五氧化二钒/碳电极浆料制备方法及产品
CN114005983B (zh) * 2021-10-14 2023-04-07 华中科技大学 一种无添加剂的五氧化二钒/碳电极浆料制备方法及产品

Also Published As

Publication number Publication date
CN105406081A (zh) 2016-03-16

Similar Documents

Publication Publication Date Title
WO2017107806A1 (fr) Procédé de préparation d'une pâte d'électrode positive pour batterie au lithium-ion
CN105470512B (zh) 一种动力锂离子电池的浆料制备工艺
CN105958008B (zh) 一种锂离子电池用复合正极片、制备方法及锂离子电池
CN103280571B (zh) 一种锂离子电池正极材料及其制备方法
CN103956458B (zh) 一种锂离子电池复合正极及其制备方法与在全固态电池中的应用
WO2017031884A1 (fr) Procédé de préparation de boue d'électrode positive de batterie au lithium
CN107742709A (zh) 一种磷酸铁锂电池正极活性材料及其制备和应用
CN104218234B (zh) 一种高循环性能的锂离子电池复合正极材料及其制备方法
WO2017031885A1 (fr) Procédé de préparation de boue d'électrode négative de batterie au lithium
WO2020062046A1 (fr) Additif d'électrode positive et son procédé de préparation, électrode positive et son procédé de préparation, et batterie au lithium-ion
CN105810899A (zh) 一种锂离子电池
WO2017032155A1 (fr) Procédé de préparation de suspension d'électrode négative de titanate de lithium de batterie au lithium
CN105514417A (zh) 一种高安全锂离子电池正极浆料及其制备方法
WO2016169289A1 (fr) Procédé permettant de préparer une suspension épaisse d'électrode négative de batterie au lithium-ion
CN103682307B (zh) 镍锰酸锂/钛酸锂电池及其制备方法
CN104241696A (zh) 一种高能量密度的锂离子电池及其制备方法
WO2017032167A1 (fr) Procédé de préparation de suspension d'électrode positive d'oxyde de lithium et de cobalt
CN105355849A (zh) 锂电池负极添加剂、锂离子电池、制备方法及应用
CN104795541A (zh) 一种锂离子电池负极浆料制备方法
CN107958997B (zh) 正极浆料、正极极片及锂离子电池
CN108063214A (zh) 一种锂离子电池正极浆料的制备方法
WO2017032165A1 (fr) Procédé de préparation de suspension épaisse d'électrode positive à base de manganate de lithium
WO2016202168A1 (fr) Suspension d'électrode positive de batterie au lithium-ion et procédé de fabrication associé
CN102290577A (zh) 一种锂离子电池的负极
CN106992297A (zh) 一种三元电池复合正极材料的制备方法及应用

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16877617

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16877617

Country of ref document: EP

Kind code of ref document: A1