Electrode Process and Manufacturing Technology for Li-Ion Secondary Battery

Electrode Process and Manufacturing Technology for Li-Ion Secondary Battery

SNE, Date of Publication: Jan 13, 2011, 237 Pages

The Li-ion secondary battery is classified into the cylindrical battery and the prismatic battery. The Li-ion secondary battery is completed through the process where metal foil (Al or Cu foil) is coated with cathode/ anode active materials, a separator is inserted and rewound between both electrodes and inserted into a metal container, which is filled and sealed with electrolytes. The Li-ion secondary battery is composed of anodes, cathodes, separators, electrolytes, metal cases and other components. A manufacturing process of the Li-ion secondary battery is largely divided into the following three processes.

Manufacturing processes of Li-ion secondary battery can be divided into three as followings.

1. Electrode process: mixing, coating/drying, pressing, cutting(slitting)
2. Assembling process: winding, inserting jelly roll and electrolyte, sealing
3. Inspection and chemical process

This report is about electrode process for Li-ion secondary battery. The general manufacturing process for Li-ion secondary battery is as follows.

Mixing -> Coating  -> Roll Pressing -> Slitting (Punching) -> Vacuum Drying -> Assembling ->  Aging -> Degassing -> Grading  -> Packing

This report covers to Vacuum Drying Process of anode or cathode materials from Mixing Process

Strong Points

* Contains the manufacturing processes for Li-ion secondary battery electrode.
* Introduces each equipment used at current battery manufacturers.
* Includes equipment specification by each manufacturing process.
* Shows examples of equipment.
* Contains 199 elusive pictures of equipments and processes.


1. Li-ion secondary battery manufacturing process 
   1.1. Li-ion secondary battery manufacturing process
      1.1.1. Electrode manufacturing process Cathode Electrode manufacturing  Anode Electrode manufacturing 
      1.1. 2. Assembling manufacturing Cylindrical Li-ion secondary battery manufacturing  Square Li-ion secondary battery manufacturing 
      1.1.3. Inspection and Formation process 
   1.2. Li-ion polymer battery manufacturing process 

2. Mixer 
   2.1. Overview
      2.1.1. Mixer Overview
      2.1.2 Mixer types and characteristics  PICO Grain MILL (Continuous mediums wet disperser) 
         2.12..2. NANO Grain MILL (Continuous mediums wet disperser)  Basket MILL (Batch medium wet disperser) AD MILL (Batch medium wet disperser) Roller MILL (Continuous equal Kneader) Despa MILL (Disperser without medium)  TORNADO (Disperser without medium)  Despa (High-speed shearing type mixer)  KONEL Despa (High-speed shearing type mixer)  PLANETARY MIXER (High-viscosity correspondence mix kneader)  PLANETARY DESPA MIXER (High-viscosity correspondence mix kneader)  High-speed thin-film turning Mixer FIL MIX 
   2.2. Mixing System 
      2.2.1. Overview
      2.2.2 Mixing system substructure 
   Powder mixer 
   Binder Solution tank 
   Planetary Despa mixer 
   Transfer system 
      2.2.3. Mixer example by companies 
   2.3. MIXER Specification (Instance) 
      2.3.1. Overview
      2.3.2. System configuration 
      2.3.3 Detail 
   NMP storage tank (For NMP management) 
   Despa Mixer 
   Binder solvent storage tank 
   Planetary Despa Mixer 
   Slurry storage tank 
   Manual powder injection device 
   Liquid transfer pump 
   Filter Unit 
   Cleaning unit 
   Console, Control Panel 
   2.4. MIXER supplier

   3.1. Overview
      3.1.1. Coating Functions 
      3.1.2. List of electrode coating method 
      3.1.3. A study on intermittent coating system  
   3.2. Category of coating method
      3.2.1. Comma Reverse coating  Intermittent Coating mechanism  Intermittent Edge control 
      3.2.2 Slit Die coating System 
      3.2.3. Printed coating  Inkjet Printing  Screen Printing  Rotary Screen 
      3.2.4. Cutton stamp 
      3.2.5 Knife stamp  Knife off Roll coating  Roll Knife Coater
         3.2.6. Powder coating (Electrostatic spray method) 
         3.2.7. Double Side Coating Overview Simultaneous two-sided coating  Simultaneous two-sided coating by Slit Die  Challenge to realize high-speed coating of Slit Die Coater  
   3.3. Dryer 
      3.3.1. Overview
      3.3.2. Change of drying technology 
      3.3.3. Heat dryer types  Roll Support dryer  Air floating dryer  Infrared Rays (IR) dryer  Automatic control of dryer 
   3.4. Coater structure 
      3.4.1. Coater structure 
      3.4.2. Unwinder 
      3.4.3. In/Out feeding  
      3.4.4. Coater Head  Intermittent valve  Slit Die 
      3.4.5. Coater Dryer 
      3.4.6. Rewinder 
      3.4.7 No-contact Web thickness measuring instrument  
      3.4.8. Other equipment 
      3.4.9. Coater examples by companies 
   3.5. Coater Specification (Instance) 
      3.5.1. Equipment Overview
      3.5.2. Machine Componentry 
      3.5.3. Generic Specification 
   3.6. Coater Supplier 

4. Roll Press M/C 
   4.1. Overview
      4.1.1. Press basic concept 
      4.1.2. Rolling types 
      4.1.3. Roller types  2 stage Rolling Mill  3 stage Rolling Mill  4 stage Rolling Mill   Multistage Rolling Mill  Sendzimir Rolling Mill  Planetary Rolling Mill  Universal Rolling Mill 
      4.1.4. Comparison of roll press M/C depending on large and small roll  
   4.2. Press Roll 
      4.2.1. Heater pipe heating Roll method 
      4.2.2. Induction heating Roll method  Principle of heat Principle of Induction heating roll Structure of Induction heating roll  Benefits of Induction heating roll
      4.2.3 Inspection example of press roll 
      4.2.4. Temperature detection method  Spin Trans method  Slipping method  Rotary Connector method 
      4.2.5. Pressing method 
   4.3. Roll Press M/C structure 
      4.3.1. Roll Press M/C structure
      4.3.2. Unwinder 
      4.3.3. In/Out feeding  
      4.3.4. Pre-heating  
      4.3.5. Press Roll  
      4.3.6. Roll system
      4.3.7. Rewinder  
      4.3.8. Control Panel 
      4.3.9. Example of Roll Press M/C  
   4.4. Roll Press M/C Specification (Instance) 
      4.4.1. Overview
      4.4.2. Basic Specification  Products specifications  Equipment overview 
      4.4.3. Equipment specifications   Roll Press Equipment  Guide Equipment  Winding and rewind equipment  Pressing Equipment  Electrics   Other attachments  
   4.5. Roll Press MC Equipment supplier 

   5.1. Slitter Overview
   5.2. Optimum slitting conditions 
      5.2.1. Composite material as sectioning material 
      5.2.2. Suggestion of optimum slitter conditions 
   5.3. Slitting method by PASS LINE 
   5.4. Slitter basic composition 
   5.5. KNIFE Overview
      5.5.1. Performance required for KNIFE 
      5.5.2. KNIFE form 
      5.5.3. KNIFE diameter 
      5.5.4. KNIFE Size and cutting start angle  Engagement deep of upper panel and bottom panel   Cutting start angle 
      5.5.5. Clearance 
      5.5.6. Selection for Amputation method 
      5.5.7. Adjusting of Knife angle 
      5.5.8. KNIFE Material 
      5.5.9. Nose wear and life of KNIFE 
      5.5.10. Example of Slitter in Li-ion secondary battery 
   5.6. SLITTER structure 
      5.6.1. SLITTER Driving 
      5.6.2. Knife UNIT 
      5.6.3. Collector 223 Knife Collector  Brush Equipment Cleaning Equipment  Adhesion Roll Equipment  Flow Equipment  SLITTER individual free cushion winders 
      5.6.4. Touch Roll 
   5.7. Slitter by companies 
   5.8. Slitter Specification 
      5.8.1. General Specification 
         5.8.1. 1. Overview Material  Construction  Other 
      5.8.2. MC Construction 
      5.8.3. Technical Specifications  Unwinding Unit  Feeding Unit  Knife Unit  Rewinding Unit  Cleaning Part  Drive  Electric Control Unit  Condition to pass the inspection  Range of Supply 
   5.9. Slitter manufacturers 

6.. Punching/Notching MC 
   6.1. Punching M/C 
      6.1. 1. Overview
      6.1.2. Punching M/C system structure 
      6.1.3. Instance of Punching  
   6.2. Notching M/C 
      6.2.1. Overview 
      6.2.2. Notching M/C system 
      6.2.3. Notching M/C Specification (Instance)  Coverage  Basic Specification  Detail Specification  Quality examination 
   6.3. Punching/Notching Supplier

7. Vacuum Dryer
   7.1. Overview
   7.2. Vacuum dryer system 
      7.2.1. Vacuum dryer types  
         7.2.2. Devices  Vacuum Pump Cold Trap Bath 

8. Index 
   8.1. Figure 
   8.2. Table



Date of Publication:
Jan 13, 2011
File Format:
PDF via E-Mail
Number of Pages:
237 Pages
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