Lithium Secondary Battery Exterior Material Manufacturing Method

ChangeBridge: Patent Apps - Batteries (H01M)

Detected March 27th, 2026

Summary

The USPTO has published a patent application detailing a new method for manufacturing the exterior material of lithium secondary batteries. The application, filed by inventors from South Korea, describes a process involving electrode assembly molds and outer shells to create a more integrated battery component.

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What changed

This document is a published patent application from the USPTO, not a regulatory rule or guidance. It describes a novel method for manufacturing the exterior material of lithium secondary batteries. The process involves preparing an electrode assembly mold and an outer shell, then wrapping the mold with the shell, grabbing a portion of the shell, and pulling it to adjoin the mold and shell.

While not a regulatory requirement, this patent application signifies potential innovation in battery manufacturing technology. Companies involved in battery production, particularly those focused on lithium secondary batteries, may find this technology relevant for future product development or as a basis for licensing or further research. Compliance officers in this sector should be aware of such technological advancements as they may influence future industry standards or competitive landscapes.

Source document (simplified)

← USPTO Patent Applications

EXTERIOR MATERIAL MANUFACTURING METHOD FOR LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD FOR LITHIUM SECONDARY BATTERY, EXTERIOR MATERIAL MANUFACTURING DEVICE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY

Application US20260088398A1 Kind: A1 Mar 26, 2026

Inventors

Ji Hyung KIM, Young Ha KIM, Sang Bin LEE, Ho Jin HWANG

Abstract

A method for manufacturing an outer shell for a lithium secondary battery according to an embodiment of present disclosure comprising: (a) a step of preparing an electrode assembly mold and the outer shell; (b) a step of wrapping the electrode assembly mold with the outer shell and grapping a portion of the outer shell; and (c) a step of pulling a part of the outer shell grabbed in the step (b) and adjoining the electrode assembly mold and the outer shell.