3D-Printed Microbatteries

The battery shouldn't design your product.

Power 3D prints custom-shaped lithium-ion cells — any geometry, any thickness — so engineers can stop designing their wearable or medical device around a rectangle.

80–100%HIGHER ENERGY DENSITY
1.2 mmMINIMUM CELL THICKNESS
SHAPES, ONE PROCESS
PRINTING FOR: RING

The problem

In most wearables, the battery is designing the device — not the other way around.

The biggest single component

In many wearable devices, the battery is the largest part inside the enclosure — the primary constraint on size, comfort, and how the whole product looks and feels.

Off-the-shelf means one shape

Standard lithium-ion cells come in a handful of rectangular formats. A round ring, a curved band, or a slim frame all have to compromise around a cell that was never made for them.

Engineering tradeoffs, baked in

Teams end up trading battery life for comfort, or comfort for size — because the cell, not the product vision, sets the boundaries of what's possible.

The solution

One printing process. Any shape you need.

Power 3D 3D-prints battery electrodes directly into the geometry your product needs — round, curved, angular, or anything in between — instead of forcing your design around a standard cell. The same process also prints thicker, denser electrodes than conventional manufacturing allows, so a custom-shaped Power 3D cell can hold more energy in less space.

How the printing process works
Energy density+80–100% vs. incumbents
Minimum thickness1.2 mm
Cell widthfrom 15 mm
Geometryany shape, custom to your enclosure
Chemistrychemistry-agnostic
IP positionpatent granted, additional filings pending

From design to cell

How a Power 3D engagement runs

1

Share your constraints

Tell us your enclosure geometry, thickness budget, and energy needs.

2

We print a sample cell

Custom-shaped electrodes are printed to your exact form factor.

3

You validate in-device

Test fit, performance, and cycle life in your actual product.

4

We scale together

Move from prototype to a joint development plan for production.

Where it fits

Built for products where shape and size actually matter

Wearables

Smart rings, watches, earbuds, and hearables where every fraction of a millimeter shapes comfort and battery life.

Medical devices

Slim, custom-shaped power for wearable and body-worn medical devices where thickness and comfort are clinical requirements, not preferences.

Defense & aerospace

Compact, custom-shaped power for size-and-weight-constrained systems, including night-vision and other wearable hardware.

Backed by

National Science Foundation SBIR Built at Carnegie Mellon University Patent granted · additional filings pending 300+ Wh/L verified in prototype

Building a product that needs a battery shaped like nothing on the shelf?

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