# US 2026/0066366 A1 · Battery pack

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2026/0066366 A1
- Document ID: US20260066366A1
- Status: Published application
- Kind: A1
- Application number: 19/105,436
- Filed: 2023-08-23
- Published: 2026-03-05
- Earliest claimed: 2022-09-02
- Assignees: AESC Japan Ltd.
- Applicants: AESC Japan Ltd.
- Inventors: Gentarou TAKAGI; Shinichi YOSHIOKA
- Web page: https://patentgrep.com/patent/US20260066366A1

## CPC

- H01M 10/425: {Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00)}
- H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells
- H01M 50/262: with fastening means, e.g. locks
- H01M 50/394: {Gas-pervious parts or elements}
- H01M 50/574: Devices or arrangements for the interruption of current
- H01M 50/258: Modular batteries; Casings provided with means for assembling
- H01M 2010/4271: {Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing}
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A battery pack (10) includes a plurality of battery modules (100), an accommodation body (200) that defines an accommodation space (250) accommodating the plurality of battery modules (100), a lower bracket (310) and an upper bracket (320) overlapping in a plurality of stages with at least a portion of the accommodation space (250), and a disconnect switch (410) for disconnecting a circuit electrically connecting the battery modules (100) to each other and provided to the lower bracket (310) and the upper bracket (320).

## Claims

### Claim 1

A battery pack comprising:
a plurality of battery modules;
an accommodation body that defines an accommodation space accommodating the plurality of battery modules;
a plurality of brackets overlapping in a plurality of stages with at least a portion of the accommodation space; and
a disconnect switch for disconnecting a circuit electrically connecting the battery modules to each other, the disconnect switch being provided to the plurality of brackets.

### Claim 2 (depends on 1)

The battery pack according to claim 1, further comprising
an electronic component provided to at least one of the plurality of brackets, the electronic component being for controlling the plurality of battery modules.

### Claim 3

The battery pack according to claim further comprising
a breather through which air inside the accommodation space and air outside the accommodation space are passable, wherein
the disconnect switch and the breather are arranged on opposite sides of the plurality of brackets to each other.