US Patent Granted for Lithium-Ion Battery Shut-Down Additive

ChangeBridge: Patent Grants - Batteries (H01M)

Published March 24th, 2026

Detected March 26th, 2026

Summary

The USPTO has granted a patent (US12586824B2) for a novel imidazolidinylide compound designed as a shut-down additive for lithium-ion batteries. The patent was assigned to Jacobs University Bremen GmbH and details specific chemical formulas and classifications related to battery technology.

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What changed

The United States Patent and Trademark Office (USPTO) has issued patent US12586824B2, granting exclusive rights for an imidazolidinylide compound intended for use as a shut-down additive in lithium-ion batteries. The patent, assigned to Jacobs University Bremen GmbH, specifies the chemical structure and formula of the additive, along with its CPC classifications related to battery technology and organic chemistry. The filing date for this application was February 9, 2021.

This patent grant represents a new intellectual property asset in the field of battery technology. While it does not impose direct regulatory obligations on companies, it may influence future product development and market entry strategies for manufacturers of lithium-ion batteries and related components. Companies operating in this sector should be aware of this granted patent, particularly if their research and development activities involve similar chemical additives or battery shut-down mechanisms.

Source document (simplified)

← USPTO Patent Grants

Imidazolidinylide compound for use as a shut-down additive for lithium ion batteries and electrolyte and battery

Grant US12586824B2 Kind: B2 Mar 24, 2026

Assignee

JACOBS UNIVERSITY BREMEN GGMBH

Inventors

Gerd-Volker Roeschenthaler, Isidora Cekic-Laskovic, Natascha Von Aspern, Martin Winter, Mykhailo Shevchuk

Abstract

An imidazolidinylide compound for use as a shut-down additive for a lithium-ion battery. The imidazolidinylide compound has a formula (I),
wherein, R1 to R4, each independently the other, is a linear C1- to C16-alkyl group, a branched C1- to C16-alkyl group, a C2- to C16-alkenyl group, a C3- to C8-cycloalkyl group, or a C3- to C16-arene group, wherein at least one of R2 and R3 may also be H, R1 to R4, each independently of the other, is completely, partially or not fluorinated, and R1 to R3 may each also contain O as a heteroatom.