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SamsungGranted patentBatteries & energyInterest 6/10

Samsung patents new material for solid-state batteries

Samsung has been granted a patent for a specific chemical compound designed to act as a solid-state electrolyte. The formula mixes lithium, strontium, zirconium, and other elements to create a material that can move charged particles, or ions, between battery parts. This solid material replaces the liquid gel found in standard batteries, which can sometimes leak or catch fire.

Why it mattersSolid-state batteries are a major goal for the industry because they promise safer, longer-lasting power for phones and electric cars, though this patent only covers one specific recipe for the material.

In the filing’s own words

A compound represented by Formula 1: L ⁢ i 4 + d ⁢ H h + ⁢ Sr 2 - x ⁢ M ⁢ 1 x a + ⁢ Zr 1 - y ⁢ M ⁢ 2 y b + ⁢ O 6 - z ⁢ X z c -, wherein in Formula 1, M1 is a cationic dopant in Sr site with a valance of a+; a is 1, 2 or 3; M2 is a cationic dopant in Zr site with a valance of b+; b is 2, 3, 4 or 5; X is an anion dopant in O site with a valence of c−; c is 1, 2, or 3; 0≤h≤2, 0≤x≤2, 0≤y≤1, 0≤z≤0.5, x+y+z+h≥0, d=(2−a)*x+(4−b)*y−(2−c)*z−h, and d≥0.

What exactly they claim (claim 1)

1. A compound represented by Formula 1: L ⁢ i 4 + d ⁢ H h + ⁢ S ⁢ r 2 - x ⁢ M ⁢ 1 x a + ⁢ Z ⁢ r 1 - y ⁢ M ⁢ 2 y b + ⁢ O 6 - z ⁢ X z c -, Formula ⁢ 1 wherein in Formula 1, MI is a cationic dopant in Sr site with a valance of a+; a is 1, 2 or 3; M2 is a cationic dopant in Zr site with a valance of b+; b is 2, 3, 4, or 5; X is an anion dopant in 0 site with a valence of c−; c is 1, 2, or 3; 0 ≤ h ≤ 2, 0 ≤ x ≤ 2, 0 ≤ y ≤ 1, 0 ≤ z ≤ 0.5, x + y + z + h ≥ 0, d = ( 2 - a) ⋆ ⁢ x + ( 4 - b) ⋆ ⁢ y - ( 2 - c) ⋆ ⁢ z - h, and d ≥ 0.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
Solid-state electrolyte material and solid-state battery utilizing the same
Patent number
US12749704B2
Application number
18149635
Filed
Jan 3, 2023
Granted
Sep 29, 2026
Inventors
6
Claims
19

Classified under

H01M 10/0562 Electricity & electronicsC01G 25/006 Chemistry & metalsH01M 10/0585 Electricity & electronicsC01P 2002/50 Chemistry & metalsC01P 2002/77 Chemistry & metalsC01P 2006/40 Chemistry & metals
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.