SamsungPatent applicationBatteries & energyInterest 6/10

Samsung patents metal-air battery that weighs its own parts

Patent drawing from the official filing.

Samsung describes a metal-air battery design that includes a built-in weight sensor to measure the mass of the anode. The system uses this weight data to trigger maintenance signals, helping manage the battery's condition.

Why it mattersThis approach offers a simple way to monitor battery health by tracking physical changes in the anode, which could improve the longevity of high-capacity energy storage systems.

In the filing’s own words

A metal-air battery includes a unit battery cell and a weight sensor. The unit battery cell, which includes anolyte, a supporter, an anode being suspended from the supporter, and a cathode, is configured to generate electricity by using an oxygen reduction reaction in the cathode and an oxidation reaction of the anode. The weight sensor is configured to determine a weight of the anode of the unit battery cell. A metal-air battery system includes a metal-air battery and a controller configured to generate, based on a result of sensing by the weight sensor, a maintenance signal for the anode.

What exactly they claim (claim 1)

1. A metal-air battery comprising: a unit battery cell comprising an anolyte, a supporter, an anode being suspended from the supporter, and a cathode, the unit battery cell being configured to generate electricity by using an oxygen reduction reaction in the cathode and an oxidation reaction of the anode; and a weight sensor configured to determine a weight of the anode of the unit battery cell.

Facts

Company: Samsung (Samsung Electronics Co., Ltd.)
Official title: METAL-AIR BATTERY, METAL-AIR-BATTERY SYSTEM, AND OPERATION METHOD OF THE METAL-AIR BATTERY SYSTEM
Publication number: US20260302433A1
Application number: 19441181
Filed: Jan 6, 2026
Published: Oct 1, 2026
Inventors: 5
Claims: 20

Classified under

H01M 12/06 Electricity & electronicsH01M 10/48 Electricity & electronicsH01M 12/02 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.