/Patent Tracker
SamsungPatent applicationBatteries & energyInterest 6/10

Samsung patents battery that slides metal anode to keep power steady

Samsung describes a metal-air battery design that uses a mechanical injector to slowly push a metal anode deeper into the cell. This action increases the surface area of the metal touching the electrolyte, which helps maintain a consistent power output as the battery discharges.

Why it mattersThis approach could lead to batteries that provide more stable energy for devices that require constant power, such as electric vehicles or long-lasting electronics.

In the filing’s own words

A metal-air battery cell capable of generating constant output power. The metal-air battery cell may include a metal anode including an end and a lateral surface extending from the end, a cathode surrounding and spaced apart from the lateral surface of the metal anode, an electrolyte between the metal anode and the cathode and in contact with the end of the metal anode and a portion of the lateral surface of the metal anode, and an anode injector configured to move the metal anode to increase an area of the lateral surface of the metal anode contacting the electrolyte.

What exactly they claim (claim 1)

1. A metal-air battery cell comprising: a metal anode comprising an end and a lateral surface extending from the end; a cathode surrounding and spaced apart from the lateral surface of the metal anode; an electrolyte between the metal anode and the cathode and in contact with the end of the metal anode and a portion of the lateral surface of the metal anode; and an anode injector configured to move the metal anode to increase an area of the lateral surface of the metal anode contacting the electrolyte.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
METAL-AIR BATTERY CELL, METAL-AIR BATTERY, AND OPERATION METHOD OF THE METAL-AIR BATTERY
Publication number
US20260269328A1
Application number
19467993
Filed
Feb 3, 2026
Published
Sep 10, 2026
Inventors
5
Claims
19

Classified under

H01M 10/4214 Electricity & electronicsH01M 10/425 Electricity & electronicsH01M 10/48 Electricity & electronicsH01M 12/08 Electricity & electronicsH01M 50/1385 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

More from Samsung in Batteries & energy

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.