Energy Storage System Patent Application

ChangeBridge: Patent Apps - Power Supply (H02J)

Published September 28th, 2023

Detected March 26th, 2026

Summary

The USPTO has published a new patent application, US20260088628A1, detailing an energy storage system and method. The application describes a system with multiple energy storage banks and a management device that mitigates cross-currents between banks under specific voltage difference conditions.

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What changed

This document is a publication of a new patent application (US20260088628A1) filed with the USPTO on September 28, 2023. The application describes an energy storage system comprising multiple parallel energy storage banks and a system management device. The core innovation appears to be a method for mitigating cross-currents between these banks when a significant voltage difference is detected before they are connected to a trunk line, ensuring safer and more efficient energy input.

As this is a patent application, it does not impose direct regulatory obligations or compliance deadlines on entities. However, companies involved in the development, manufacturing, or deployment of energy storage systems, particularly those utilizing parallel bank configurations, should be aware of this patented technology. It may impact future product development, licensing strategies, and competitive landscapes within the energy storage sector.

Source document (simplified)

← USPTO Patent Applications

ENERGY STORAGE SYSTEM AND ENERGY STORAGE BANK INPUTTING METHOD

Application US20260088628A1 Kind: A1 Mar 26, 2026

Inventors

Takafumi AKAGI

Abstract

An energy storage system includes a plurality of energy storage banks connected in parallel to a trunk line, and a system management device. When a maximum voltage difference between the energy storage banks is equal to or greater than a first threshold before the energy storage banks are caused to input to the trunk line, the system management device executes a process of mitigating a cross current generated between the energy storage banks to mitigate a cross current accompanying the inputting to the trunk line by the energy storage banks. When the maximum voltage difference between the energy storage banks is less than the first threshold, the system management device causes the energy storage banks to input to the trunk line without limitation of the process of mitigating the cross current.