Power Storage Device Patent Application Filed

ChangeBridge: Patent Apps - Batteries (H01M)

Published September 27th, 2023

Detected March 27th, 2026

Summary

The USPTO has published a new patent application, US20260088460A1, related to a power storage device. The application, filed on September 27, 2023, describes an electrode assembly with a positive electrode current collector featuring an adjustable length column.

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What changed

The United States Patent and Trademark Office (USPTO) has published a new patent application, US20260088460A1, concerning a power storage device. The application details an electrode assembly with a specific design for the positive electrode current collector, including a plate-shaped flange and an adjustable length column. This filing represents a new intellectual property disclosure in the field of energy storage technology.

This publication is primarily informational for manufacturers and researchers in the energy storage sector. It does not impose any immediate compliance obligations. Companies developing or manufacturing power storage devices should be aware of this new patent application as it may relate to their existing or future intellectual property landscape. No specific actions are required by regulated entities based solely on this patent application publication.

Source document (simplified)

← USPTO Patent Applications

POWER STORAGE DEVICE

Application US20260088460A1 Kind: A1 Mar 26, 2026

Inventors

SHINICHI SAKAMOTO, KIYOMI KOZUKI, SHINYA GESHI

Abstract

A power storage device includes an electrode assembly where a positive electrode plate and a negative electrode plate are wound with a separator interposed between the positive electrode and negative electrode plates; and a positive electrode current collector joined to the positive electrode plate at an upper end of the electrode assembly in axial direction P. The positive electrode current collector includes a plate-shaped flange joined to the positive electrode plate at a face facing the positive electrode plate in axial direction P and a column with an adjustable length in axial direction P that protrudes from the flange toward an upper side in axial direction P.