ChangeBridge: Patent Grants - Batteries (H01M)

US patent granted for energy storage devices Mar 24, 2026

US patent granted for energy storage devices Mar 24, 2026

USPTO Patent Granted for Polysulfide-Polyoxide Electrolyte Membrane

The USPTO has granted a patent (US12586817B2) to The University of Akron for a polysulfide-polyoxide electrolyte membrane for energy storage devices. The patent describes a novel polymer electrolyte membrane that includes a copolymer network of polyoxide and polysulfide, designed to improve battery performance through prelithiation.

USPTO Patent Granted for Polymer Gel Electrolyte

The USPTO has granted a patent (US12586818B2) to RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY for a dextrin-DADMAC based double network polymer gel electrolyte. The patent covers the electrolyte composition and a method for its preparation, intended for use in energy storage devices.

USPTO Patent Granted for Lithium Secondary Battery Electrolyte

The USPTO has granted a patent to LG Energy Solution, Ltd. for a non-aqueous electrolyte and a lithium secondary battery including the same. The patent, US12586819B2, details a specific electrolyte composition designed to enhance battery performance. This grant represents a new intellectual property asset in the field of battery technology.

Hyundai Granted US Patent for Lithium Battery Electrolyte

The USPTO has granted Hyundai Motor Company a patent for a novel electrolyte composition for lithium secondary batteries. The electrolyte includes an ionic liquid, a carbonate-based solvent, and a nitrile-based solvent, designed to enhance battery performance.

GS Yuasa Granted US Patent for Lead-Acid Battery

The USPTO has granted US Patent US12586821B2 to GS Yuasa International Ltd. for a novel valve-regulated lead-acid battery. The patent, effective March 24, 2026, details specific compositions for negative and positive electrode materials and electrolyte solutions.

USPTO Patent Granted for Battery Cell Leak Testing System

The USPTO has granted a patent (US12586822B2) to Marposs for a system and method for leak testing finished battery cells. The system utilizes a vacuum chamber, pump, and a detection system connected via a capillary element to identify gas or vapor leaks from internal cell components. The patent was granted on March 24, 2026.

USPTO Patent Grant for Battery Pack Protection

The USPTO has granted a patent (US12586823B2) to DEXERIALS CORPORATION for a battery pack protection device. The invention aims to prevent floating of blowout members and deformation of meltable conductors, maintaining current capacity and blowout properties.

Google Patent Granted for Auto Detaching Connector

The USPTO has granted Google LLC a patent for an auto-detaching connector for electronic devices. The connector features a peripheral structure designed to expand when exposed to liquid, automatically disconnecting the device without user intervention. This patent, filed in 2021, aims to enhance safety and convenience in electronic device connectivity.

USPTO Patent Granted for High Power Battery System

The USPTO has granted a patent (US12587124B2) to Milwaukee Electric Tool Corporation for a high power battery-powered system. The patent covers an electrical combination, tool system, electric motor, and battery pack with specific power and voltage parameters.