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Paper batteries start to roll

12 May 2014  | Steve Taranovich

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The PowerPatch product line consists of ultrathin, patternable ultracapacitor devices with interconnects and packaging designed to make compact energy modules with operating voltages ranging from 2V-7.8V depending on the desired lifetime.

Reducing voltage droop

PowerPatch Gen2 can significantly decrease voltage droop in a small space.

 conventional battery

Figure 1: The top graph is conventional battery with a Paper Battery Company supercapacitor. The bottom graph shows significant droop with the conventional battery alone in a GSM handset radio.

Paper conforms to complex shapes

 A thinner battery means a lighter, thinner external product design

Figure 2: Conventional batteries would have a hard time fitting into complex footprints. A thinner battery means a lighter, thinner external product design.

 New product design paradigms are enabled

Figure 3: New product design paradigms are enabled. A battery/supercap can now surround a PC board for minimum volume in a product. This now easily enables distributed capacitances. This design can now reduce PCB voltage variations across and remove many PCB components, while providing peak power pulse to one or more load. The flexibility in choosing form factors allows irregular shapes while still providing superior thermal and RFI benefits.

Hidden advantages

Slim form factor makes PowerPatch excellent for spreading and shielding heat. PowerPatch is architected to be EMI "quieter" and to serve as an RFI shield.

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