Contact: Heejin Choi
Email: hjchoi2@etri.re.kr
Phone: +82. 42. 860. 4946
Ultra-thin Flexible Primary
Film Battery
Manufacturing Technology
Core Part of Subminiature Flexible Device Power
2
TECHNOLOGY BRIEF
▣ Technology Overview
Ultra-thin Flexible Primary Film Battery Manufacturing Technology
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This technology is especially ultra-thin flexible film shaped primary
battery manufacturing technology among power device technologies
which are usually applied to RFID sensor tag, smart card, flexible display,
wearable PC.
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Composed of cathode, anode, adhesive and post injecting polymer
electrolytes, sealing/current collector, and etc.
Ultra-thin Flexible, Film Primary Battery, Lithium Primary Battery
□ Keywords
□ TRL
cathode
anode
polymer electrolytes
sealing
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Technology Classification Code
Sector
Sub Sector
Industry
Creative Convergence
Energy ICT
Energy Storage
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Thickness less than 400μm
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Nominal discharge capacity more than 3.0mAh/cm2 (1.5V) and 6.0mAh/cm2 (3V)
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TECHNOLOGY BRIEF
Ultra-thin Flexible Primary Film Battery Manufacturing Technology
▶ Film shaped primary battery technology for RFID sensor tag and smart
card
▶ Power for RIFD sensor tag
▶ Power for smart card
▶ Subminiature power for sensor related to ubiquitous network environment
▶ Power for MEMS/NEMS imbedded subminiature devices
▶ Power for flexible display
▶ Power for wearable PC
▣ Technology Description
▣ Application Fields
▶ Hermetically sealed film battery technology with direct lamination on
Al pouch and vacuum thermosetting method
▶ Pouch design, 1.5V cell design, 3V cell design, vacuum packing
technology included
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▶ Lightweight, good shelf life, improved long-term stability, volatilization
and leakage of electrolyte prevention are guaranteed with Al pouch
which can be vacuum sealed.
▶ Direct coating of conductive layer is possible through modifying inner
side of Al pouch, so Al pouch is used not only for sealing but also for
current collector, and final sealing can be made by vacuum
thermosetting method.
▶ Simplifies process not using metal current collector and Al/Ni tab. Also,
investment in equipment and manufacturing cost is cheap since
manufacturing process of 1.5V and 3V cell are same.
▶ Even if it’s thinner than existing Power Paper’s batteries, capacity/output
is improved.
▶ Thinning, tightness, molding formability are improved since direct design
of Al pouch is possible.
▶ Developed adhesive polyelectrolyte with new process having minimized
electrolyte content
▶ Thinning lithium cathode reduces consumption and thus safety of cell is
guaranteed.
▣ Outstanding Features
▣ IPR Status
No.
Country
Application
Number (date)
Status
Title
1
USA
12708807
(2013.10.15)
Registered
Vacuum-sealing-type flexible-film
primary battery
Korean patent 1 article registered
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• At the year of 2005, as the first to start
in Korea, ETRI started to carry
researches about 1.5V manganese cel
and alkaline cel shaped film primary
battery.
•
Now have expanded development to
3V lithium primary battery, and
researching about material and
process.
• Since 2005, Rocket Battery Co. is
running research about improving
process of manganese film primary
battery to construct a mass production
• VITZRO Cel Co. has commercialized
Li/SOCl2 related lithium primary battery
and leading domestic technologies.
• Power Paper Co. in Israel has
original patent of 1.5V manganese
cel shaped open type film primary
battery and leading relevant
technology development.
• Blue Spark Technology Co. in USA is
fol owing Power Paper Co. with
effort to commercialize same 1.5V
film primary batteries.
• Sanyo Co. in Japan is
commercializing Li/MnO2 cel shaped
cylindrical primary battery, and
leading relevant technology
development.
• Panasonic Co. in Japan has lots of
patents related to lithium primary
battery.
□ Korea
□ Global
▣ Technology Trend
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기술수요
적용처
Application
Industry
RFID Sensor Tag, Smart
Card, Subminiature
Human Plug-in/Built-in
Equipment
Active RFID Tag
Manufacturing Company,
Smart Card and Medical
Instruments
Manufacturing Company
▶ Global
• Power Paper
• Blue Spark Tech
• Sanyo
• Panasonic
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Wearable devices and battery market outlook
▶ Domestic
• Rocket Battery
• VITZRO Cel
▣ Market Trend
□ Market Leaders
□ Technology Demand
[Wearable Device Market Outlook]
[Wearable Battery Market outlook]
Million Cell
Apple Watch Launched
Growth Expected
Reference) SNE ”Global Mini Lithium Ion Secondary Battery Performance Trend and
Prospects at 2014” Report (www.sneresearch.com)
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•
Cel design technology
•
Aqueous electrolyte and adhesive polymer electrolytes manufacturing technology
•
Depolarization and deliquescent additive manufacturing technology
•
Electrode material post handling and laminating slurry manufacturing technology
•
Electrode laminating technology on current col ector film with screen printing method
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1.5V primary film battery manufacturing technology
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Thin Al Pouch Design Technology
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Al Pouch Surface Modification Technology : Making Hydrophilic
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Laminating Conductive Layer and Forming Sealing/Current
Collector/Socket on Al Pouch Technology
•
Cel design technology
•
Thin lithium foil manufacturing technology
•
Adhesive gel polymer electrolytes manufacturing technology
•
Electrode material post handling and laminating slurry manufacturing technology
•
Rol -to-rol electrode and electrolyte assembly technology
•
3V film-type lithium primary battery manufacturing technology
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3V Primary Film Battery Technology
▶ Applications
• 1.5V Ultra-thin Flexible Primary Film Battery
• 3V Ultra-thin Flexible Lithium Primary Battery
▶ Effects
• 1.5V Ultra-thin Flexible Primary Film Battery
- Reduced cost : 20% reduced contrast to Power Paper cel
• 3V Ultra-thin Flexible Lithium Primary Battery
- Reduced cost : more than 50% reduced contrast to existing cylindrical and
coin-type lithium primary battery
▣ Applications and Effects
▣ Scope of Technology Transfer
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1.5V Primary Film Battery Design
