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Samsung patents aluminum battery design with uneven spacing

Samsung has filed a patent for a metal-air battery that uses aluminum as the main fuel source. The design features a specific layout where the distance between the battery's positive and negative parts changes across the surface, rather than staying the same.

Why it mattersThis could lead to lighter, longer-lasting batteries for electric vehicles or large devices, as aluminum is abundant and metal-air batteries generally store more energy than standard lithium-ion cells.

In the filing’s own words

Provided are a metal-air battery, a power supply including the same, and a method of manufacturing a metal-air battery, wherein the metal-air battery includes a cathode configured to use oxygen as an active material, an anode including an anode current collector and an aluminum metal extending in a first direction from a first end adjacent to the anode current collector to a second end opposite the first end, and an electrolyte between the cathode and the anode, wherein a distance between the cathode and the aluminum metal decreases in the first direction.

What exactly they claim (claim 1)

1. A metal-air battery comprising: a cathode configured to use oxygen as an active material; an anode comprising an anode current collector and an aluminum metal extending in a first direction from a first end adjacent to the anode current collector to a second end opposite the first end; and an electrolyte between the cathode and the anode, wherein a distance between the cathode and the aluminum metal decreases in the first direction.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
METAL-AIR BATTERY, POWER SUPPLY INCLUDING THE SAME, AND METHOD OF MANUFACTURING METAL-AIR BATTERY
Publication number
US20260279973A1
Application number
19457367
Filed
Jan 23, 2026
Published
Sep 17, 2026
Inventors
5
Claims
20

Classified under

H01M 12/06 Electricity & electronicsH01M 4/38 Electricity & electronicsH01M 2004/027 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.