SamsungGranted patentBatteries & energyInterest 2/10

Samsung patents new chemical mix for lithium battery parts

Samsung has secured a patent for a specific chemical formula used in the positive part of a lithium-ion battery. The design combines lithium, phosphorus, oxygen, and other metals to create a solid material that stores electrical energy.

Why it mattersThis is a routine improvement to battery chemistry that could help make future phone or laptop batteries more stable or efficient.

In the filing’s own words

A cathode active material represented by Formula 1 below: A 2+x MP 2 O 7 Z y Formula 1 wherein in Formula 1, A is at least one element selected from Group 1 of the Periodic Table, M is at least one metal element selected from Groups 2 to 4, or 6 to 16 of the Periodic Table, and is a cation having a valence of at least two, Z is at least one element selected from Group 17 of the Periodic Table, 0<x≤4, and 0<y≤4.

What exactly they claim (claim 1)

1. A cathode active material represented by Formula 2: Li 2+a MP 2 O 7 Z b Formula 2 wherein in Formula 2, M is at least one metal element selected from Groups 2 to 4, or 6 to 16 of the Periodic Table, and is a cation having a valence of at least two, Z is at least one element selected from Group 17 of the Periodic Table, and 0<a≤2, and 0<b≤2.

Facts

Company: Samsung (Samsung Electronics Co., Ltd.)
Official title: Cathode active material, cathode and lithium secondary battery comprising same, and preparation method therefor
Patent number: US12749680B2
Application number: 18252649
Filed: Sep 29, 2021
Granted: Sep 29, 2026
Inventors: 6
Claims: 21

Classified under

H01M 4/525 Electricity & electronicsC01B 25/168 Chemistry & metalsH01M 4/1315 Electricity & electronicsH01M 10/0525 Electricity & electronicsC01P 2002/72 Chemistry & metalsC01P 2002/76 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.