varta microbattery poliflex lithium polymer technology
TRANSCRIPT
![Page 1: VARTA Microbattery PoLiFlex Lithium Polymer Technology](https://reader030.vdocuments.net/reader030/viewer/2022021211/62064d468c2f7b1730066bc7/html5/thumbnails/1.jpg)
PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 12007 proprietary material of VARTA Microbattery GmbH
Basisfolie
Technology
VARTA Microbattery
PoLiFlex
Lithium Polymer Technology
![Page 2: VARTA Microbattery PoLiFlex Lithium Polymer Technology](https://reader030.vdocuments.net/reader030/viewer/2022021211/62064d468c2f7b1730066bc7/html5/thumbnails/2.jpg)
PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 22007 proprietary material of VARTA Microbattery GmbH
Basic Technology
Basic technologyBasic technology
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 32007 proprietary material of VARTA Microbattery GmbH
Basisfolie
Chemical construction and reaction
The lithium-ion rechargeable battery
a bx yz
Electrochemistry
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 42007 proprietary material of VARTA Microbattery GmbH
Basisfolie
Chemical construction and reaction
Technology
- Hot-lamination step guarantees a very good
adhesion between:
- current collector and electrode material
- separator and electrode material
Low impedance and very good capacity
over cycling
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 52007 proprietary material of VARTA Microbattery GmbH
Basisfolie
Technology
-Most advanced lithium rechargeable technology
-Next generation after Lithium Ion
-High volumetric and gravimetric energy density
-Low swelling (up to 0.3mm for the life of the battery at RT)
-Excellent cycle life
-Excellent discharge rate capability
-Excellent performance even at extreme temperatures
-Excellent performance at 45°C and 60°C
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 62007 proprietary material of VARTA Microbattery GmbH
Basisfolie
Benefits of PoLiFlex-Technology
Li-Ion prismatic hard casing
-More weight at similar capacity
-Thickness mostly >5mm
-Liquid electrolyte: may leak and destroy
electronic
-Safety circuit needs additional space
-Electrode coiled: no solid contacts
VARTA PoLiFlexTM
-15-30% less weight (i.e. comp. to steel can)
-Slim: down to 1.5mm (actually)
-Low swelling
-No free liquid electrolyte, no risk of
damage the electronic
-Safe circuit needs no additional
space (incorparated in sealing area)
-Lamination technology: solid contact,
high reliability
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 72007 proprietary material of VARTA Microbattery GmbH
Basisfolie
Benefits of PoLiFlex-Technology
VARTA PoLiFlexTM Applications.
All VARTA PoLiFlexTM were produces at plat Ellwangen in series production.
- Apple nano-Ipod (second generation, available from september 2006.
- Biometric Card (Bloomberg)
- Mobile Phone (Siemens/BenQ CF110)
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 82007 proprietary material of VARTA Microbattery GmbH
PoLiFlex®-Batterie:2,4 mm
PoLiFlex® for NEW Apple iPod nano, 2th generation, available from sept. 2006
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 92007 proprietary material of VARTA Microbattery GmbH
PoLiFlex®-Batterie:2,4 mm flach
Aluminium-Gehäuse:4,5 mm flach (innen)
PoLiFlex® for NEW Apple iPod nano
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 102007 proprietary material of VARTA Microbattery GmbH
Basisfolie
Benefits of PoLiFlex-Technology
Biometric Card (Bloomberg)
2,6 mm PoLiFlexTM
inside
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 112007 proprietary material of VARTA Microbattery GmbH
Basisfolie
Benefits of PoLiFlex-Technology
VARTA PoLiFlexTM Applications.
All VARTA PoLiFlexTM were produces at plat Ellwangen in series production.
- Apple nano-Ipod (second generation, available from september 2006.
- Biometric Card (Bloomberg)
- Mobile Phone (Siemens/BenQ CF110)
![Page 12: VARTA Microbattery PoLiFlex Lithium Polymer Technology](https://reader030.vdocuments.net/reader030/viewer/2022021211/62064d468c2f7b1730066bc7/html5/thumbnails/12.jpg)
PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 122007 proprietary material of VARTA Microbattery GmbH
Basisfolie
Siemens Slider-Handy CF110
PoLiFlex Tyoe 44 34 41 ( Flamingo )
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 132007 proprietary material of VARTA Microbattery GmbH
Preparation of the electrodes
Casting of electrode films
Slurry
Casting onto carrier film or current collector
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 142007 proprietary material of VARTA Microbattery GmbH
Preparation of the electrodes
Hot-Lamination of the electrodes in case of coating onto carrier foil
Electrode slitting
Current collector
Electrode band
Electrode band
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 152007 proprietary material of VARTA Microbattery GmbH
Lamination of Bi-cells
Bi-cell
Preslitted electrodes and
separators
Positive
Separator
Negative
Positive
Separator
Connecting by hot lamination
process
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 162007 proprietary material of VARTA Microbattery GmbH
Stacking and welding the Bi-cells
Machine making Bi- cells by hot
lamination process
Stacking Bi-cells Cutting Bi- cell current collectrors
and connecting
them by ultrasonic welding
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 172007 proprietary material of VARTA Microbattery GmbH
Pouch fabrication
A. Partial cell packaging in
multilayer aluminum foil
B. Pouch activation through
open side with electrolyte which
is completely bound in the stack
SelaledOpen
C. Formation, degassing,
cutting of gas pouch, final sealing and
folding
Gas pouch D. Assembly of PCM
(protection circuit module)
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 182007 proprietary material of VARTA Microbattery GmbH
VARTA PoLiFlex™-Batteries are produced with highly automated plant at Ellwangen (Germany)
Modern Production- Technology and Engineering for PoLiFlexTM
Automatic production
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 192007 proprietary material of VARTA Microbattery GmbH
BasisfolieBasisfolie
Flexibility of PoLiFlexTM cells
n x
Modular stacking concept
Very flexible range of footprints Different shapes
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PoLiFlex™
JHeydecke/17Jun2007/ Company Confidential March 08 202007 proprietary material of VARTA Microbattery GmbH
ThankThank youyou