Patent Application for Large-Format Battery Management System

ChangeBridge: Patent Apps - Power Supply (H02J)

Published September 23rd, 2024

Detected March 26th, 2026

Summary

The USPTO has published a patent application (US20260088635A1) for a large-format Li-ion battery management system. The application details a scalable architecture for battery packs that allows for efficient power discharge and extended battery life, with master-slave configurations for dynamic pack management.

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What changed

This document is a patent application filed with the USPTO, detailing a novel battery management system for large-format Li-ion batteries. The system is designed for scalability and efficient power management, featuring a master-slave architecture where battery packs can be added or removed dynamically. The abstract highlights features aimed at preserving battery life and coordinating charging and discharging across multiple packs via a communication bus like CAN.

As this is a patent application, it does not impose direct regulatory obligations on businesses. However, it represents a technological development in energy storage that may influence future product designs and industry standards. Companies involved in battery technology, electric vehicles, or power systems should be aware of this patent filing as it could impact intellectual property landscapes and competitive strategies in the energy sector.

Source document (simplified)

← USPTO Patent Applications

Large-Format Battery Management System

Application US20260088635A1 Kind: A1 Mar 26, 2026

Inventors

Jianfei Liu, Youwu Chen, Jujie Xia, Huizhi Chen, Zibin Cheng, Wenhua Li, Ke Yan, Changda Guan, William Tenorio, Daniel Kang, Chris Turner

Abstract

A battery system with a large-format Li-ion battery powers attached equipment by discharging battery cells distributed among a plurality of battery packs. The discharging of the battery cells is controlled in an efficient manner while preserving the expected life of the Li-ion battery cells. Each battery pack internally supports a battery management system and may have identical components, thus supporting an architecture that easily scales to higher power/energy. Battery packs may be added or removed without intervention with a user, where one of battery packs serves as a master battery pack and the remaining battery packs serve as slave battery packs. When the master battery pack is removed, one of the slave battery packs becomes the master battery pack. Charging and discharging of the battery cells is coordinated by the master battery pack with the slave battery packs over a communication channel such as a controller area network (CAN) bus.

CPC Classifications

H02J 7/40 H01M 10/0525 H01M 10/425 H01M 10/4257 H01M 10/441 H01M 10/482 H02J 7/50 H02J 7/52 H02J 7/60 H02J 7/80 H02J 7/82 H02J 7/855 H02J 7/90 H02J 7/933 H01M 2010/4271 H01M 2010/4278